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TIBCO ActiveMatrix ® Service Grid Concepts Software Release 3.2.0 August 2012
Transcript
Page 1: Tib Amx Concepts

TIBCO ActiveMatrix® Service GridConceptsSoftware Release 3.2.0August 2012

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Important Information

SOME TIBCO SOFTWARE EMBEDS OR BUNDLES OTHER TIBCO SOFTWARE. USE OF SUCH EMBEDDEDOR BUNDLED TIBCO SOFTWARE IS SOLELY TO ENABLE THE FUNCTIONALITY (OR PROVIDE LIMITEDADD-ON FUNCTIONALITY) OF THE LICENSED TIBCO SOFTWARE. THE EMBEDDED OR BUNDLEDSOFTWARE IS NOT LICENSED TO BE USED OR ACCESSED BY ANY OTHER TIBCO SOFTWARE OR FORANY OTHER PURPOSE.

USE OF TIBCO SOFTWARE AND THIS DOCUMENT IS SUBJECT TO THE TERMS AND CONDITIONS OF ALICENSE AGREEMENT FOUND IN EITHER A SEPARATELY EXECUTED SOFTWARE LICENSE AGREEMENT,OR, IF THERE IS NO SUCH SEPARATE AGREEMENT, THE CLICKWRAP END USER LICENSE AGREEMENTWHICH IS DISPLAYED DURING DOWNLOAD OR INSTALLATION OF THE SOFTWARE (AND WHICH ISDUPLICATED IN THE LICENSE FILE) OR IF THERE IS NO SUCH SOFTWARE LICENSE AGREEMENT ORCLICKWRAP END USER LICENSE AGREEMENT, THE LICENSE(S) LOCATED IN THE “LICENSE” FILE(S) OFTHE SOFTWARE. USE OF THIS DOCUMENT IS SUBJECT TO THOSE TERMS AND CONDITIONS, AND YOURUSE HEREOF SHALL CONSTITUTE ACCEPTANCE OF AND AN AGREEMENT TO BE BOUND BY THE SAME.

This document contains confidential information that is subject to U.S. and international copyright laws and treaties.No part of this document may be reproduced in any form without the written authorization of TIBCO SoftwareInc.

TIBCO, The Power of Now, TIBCO ActiveMatrix, and TIBCO Enterprise Message Service are either registeredtrademarks or trademarks of TIBCO Software Inc. in the United States and/or other countries.

EJB, Java EE, J2EE, and all Java-based trademarks and logos are trademarks or registered trademarks of SunMicrosystems, Inc. in the U.S. and other countries.

All other product and company names and marks mentioned in this document are the property of their respectiveowners and are mentioned for identification purposes only.

THIS SOFTWARE MAY BE AVAILABLE ON MULTIPLE OPERATING SYSTEMS. HOWEVER, NOT ALLOPERATING SYSTEM PLATFORMS FOR A SPECIFIC SOFTWARE VERSION ARE RELEASED AT THE SAMETIME. SEE THE README FILE FOR THE AVAILABILITY OF THIS SOFTWARE VERSION ON A SPECIFICOPERATING SYSTEM PLATFORM.

THIS DOCUMENT IS PROVIDED “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS ORIMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.

THIS DOCUMENT COULD INCLUDE TECHNICAL INACCURACIES OR TYPOGRAPHICAL ERRORS. CHANGESARE PERIODICALLYADDED TO THE INFORMATION HEREIN; THESE CHANGES WILL BE INCORPORATEDIN NEW EDITIONS OF THIS DOCUMENT. TIBCO SOFTWARE INC. MAY MAKE IMPROVEMENTS AND/ORCHANGES IN THE PRODUCT(S) AND/OR THE PROGRAM(S) DESCRIBED IN THIS DOCUMENT AT ANYTIME.

THE CONTENTS OF THIS DOCUMENT MAY BE MODIFIED AND/OR QUALIFIED, DIRECTLY OR INDIRECTLY,BY OTHER DOCUMENTATION WHICH ACCOMPANIES THIS SOFTWARE, INCLUDING BUT NOT LIMITEDTO ANY RELEASE NOTES AND "READ ME" FILES.

Copyright (c) 2005-2012 TIBCO Software Inc. ALL RIGHTS RESERVED.

TIBCO Software Inc. Confidential Information

TIBCO ActiveMatrix Service Grid Concepts

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Contents

Preface..................................................................................................7Changes from the Previous Release of this Guide..................................................................8

TIBCO Product Documentation................................................................................................9

Other TIBCO Product Documentation....................................................................................10

Typographical Conventions....................................................................................................11

Connecting with TIBCO Resources........................................................................................14

Chapter 1 Introduction....................................................................15TIBCO ActiveMatrix Overview................................................................................................16

Chapter 2 Applications...................................................................17Service Component Architecture...........................................................................................18

Java Components........................................................................................................22

Mediation Components................................................................................................22

Composite Components..............................................................................................25

WebApp Components.................................................................................................25

Spring Components.....................................................................................................25

Application Life Cycle.............................................................................................................26

Chapter 3 Platform..........................................................................29Design....................................................................................................................................30

Runtime..................................................................................................................................31

Administration.........................................................................................................................35

Governance............................................................................................................................39

Glossary................................................................................................................41

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TIBCO ActiveMatrix Service Grid Concepts

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Preface

TIBCO ActiveMatrix® Service Grid is a scalable and extensible platform for developing, deploying, andmanaging applications that conform to a service-oriented architecture.

TIBCO ActiveMatrix Service Grid Concepts

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Changes from the Previous Release of this Guide

This section itemizes the major changes from the previous release of this guide.

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TIBCO Product Documentation

This section lists documentation resources you may find useful.

The following documents form the TIBCO ActiveMatrix® Service Grid documentation set:• Concepts: Read this manual before reading any other manual in the documentation set. This manual

describes terminology and concepts of the TIBCO ActiveMatrix platform. The other manuals in thedocumentation set assume you are familiar with the information in this manual.

• Development Tutorials: Read this manual for a step-by-step introduction to the process of creating, packaging,and running composites in TIBCO Business Studio.

• Composite Development: Read this manual to learn how to develop and package composites.• Java Component Development: Read this manual to learn how to configure and implement Java components.• Mediation Component Development: Read this manual to learn how to configure and implement Mediation

components.• Mediation API Reference: Read this manual to learn how to develop custom Mediation tasks.• Spring Component Development: Read this manual to learn how to configure and implement Spring

components.• WebApp Component Development: Read this manual to learn how to configure and implement Web

Application components.• Administration Tutorials: Read this manual for a step-by-step introduction to the process of creating and

starting the TIBCO ActiveMatrix runtime, starting TIBCO ActiveMatrix servers, and deploying applicationsto the runtime.

• Administration: Read this manual to learn how to manage the runtime and deploy and manage applications.• Installation and Configuration: Read this manual to learn how to install TIBCO ActiveMatrix Service Grid

software and create and upgrade runtime objects.• Release Notes: Read this manual for a list of new and changed features, steps for migrating from a previous

release, and lists of known issues and closed issues for the release.

The documentation for the following features is installed separately:• TIBCO ActiveMatrix Implementation Type for C++• TIBCO ActiveMatrix Binding Type for EJB• TIBCO ActiveMatrix Binding Type for Adapters• TIBCO ActiveMatrix Implementation Type for Adapters• TIBCO ActiveMatrix Implementation Type for Microsoft CLR

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Other TIBCO Product Documentation

You may find it useful to read the documentation for the following TIBCO products:• TIBCO Enterprise Message Service™

TIBCO ActiveMatrix Service Grid Concepts

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Typographical Conventions

Table 1: General Typographical Conventions

UseConvention

TIBCO products are installed into an installation environment. A product installed intoan installation environment does not access components in other installation environments.

TIBCO_HOME

ENV_NAME Incompatible products and multiple instances of the same product must be installed intodifferent installation environments. An installation environment consists of the followingproperties:• Name - Identifies the installation environment. The name is appended to the name of

Windows services created by the installer and is a component of the path to the productshortcut in the Windows Start > All Programs menu. This name is referenced indocumentation as ENV_NAME.

• Path - The folder into which the product is installed. This folder is referenced indocumentation as TIBCO_HOME.

The folder that stores configuration data generated by TIBCO products. Configurationdata can include sample scripts, session data, configured binaries, logs, and so on. Thisfolder is referenced in documentation as CONFIG_HOME.

CONFIG_HOME

Code font identifies commands, code examples, filenames, pathnames, and outputdisplayed in a command window. For example:

code font

• Use MyCommand to start the foo process.• Code example:

public class HelloWorldImpl extends AbstractHelloWorldImpl {... public HelloResponseDocument sayHello(HelloRequestDocument firstName) { ... System.out.println("--> Generating Java Hello Component Response...");

String name = firstName.getHelloRequest()==null||firstName.getHelloRequest(). equals("")?"Friend":firstName.getHelloRequest(); HelloResponseDocument resp = HelloResponseDocument.Factory.newInstance(); resp.setHelloResponse("Hi " + name + "! " + "This is the Java component.\n");

System.out.println("--> Java Hello Component Response: \n\t\t" + resp.getHelloResponse()); ... }}

• CONFIG_HOME/admin/enterpriseName/samples/remote_props.properties

• Output example:C:\Program Files\tibco\amx-3\studio\3.5\eclipse>amx_eclipse_ant.exe -buildfile "C:/helloworld1/build.xml" -data "C:/hws"Buildfile: C:/helloworld1/build.xml

createApplicationDAA:[sds.createDAA] Waited for 47ms for workspace refreshes after building features.

all:BUILD SUCCESSFUL

BUILD SUCCESSFULTotal time: 2 minutes 18 seconds

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UseConvention

Bold code font is used in the following ways:bold code font

• In procedures, to indicate what a user types. For example: Type admin.• In large code samples, to indicate the parts of the sample that are of particular interest.• In command syntax, to indicate the default parameter for a command. For example,

if no parameter is specified, MyCommand is enabled:

MyCommand [enable | disable]

Italic font is used in the following ways:italic font

• To indicate a document title. For example: See TIBCO BusinessWorks Concepts.• To define new terms. For example: A keystore is a database of keys and certificates.• To indicate a variable in a command or code syntax that you must replace. For example:

MyCommand pathname.

Key name separated by a plus sign indicate keys pressed simultaneously. For example:Ctrl+C.

Key names separated by a comma and space indicate keys pressed one after the other.For example: Esc, Ctrl+Q.

Keycombinations

The note icon indicates information that is of special interest or importance, for example,an additional action required only in certain circumstances.

The tip icon indicates an idea that could be useful, for example, a way to apply theinformation provided in the current section to achieve a specific result.

The warning icon indicates the potential for a damaging situation, for example, data lossor corruption if certain steps are taken or not taken.

Table 2: Syntax Typographical Conventions

UseConvention

An optional item in command syntax.

For example:

[ ]

MyCommand [optional_parameter] required_parameter

A logical ’OR’ that separates multiple items of which only one may be chosen.

For example, you can select only one of the following parameters:

|

MyCommand param1 | param2 | param3

A logical group of items in a command. Other syntax notations may appear within eachlogical group.

For example, the following command requires two parameters, which can be either thepair param1 and param2, or the pair param3 and param4.

{ }

MyCommand {param1 param2} | {param3 param4}

In the next example, the command requires two parameters. The first parameter can beeither param1 or param2 and the second can be either param3 or param4:

MyCommand {param1 | param2} {param3 | param4}

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UseConvention

In the next example, the command can accept either two or three parameters. The firstparameter must be param1. You can optionally include param2 as the second parameter.And the last parameter is either param3 or param4.

MyCommand param1 [param2] {param3 | param4}

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Connecting with TIBCO Resources

How to Join TIBCOmmunity

TIBCOmmunity is an online destination for TIBCO customers, partners, and resident experts. It is a place toshare and access the collective experience of the TIBCO community. TIBCOmmunity offers forums, blogs,and access to a variety of resources. To register, go to http://www.tibcommunity.com.

How to Access TIBCO Documentation

After you join TIBCOmmunity, you can access the documentation here: http://docs.tibco.com.

How to Contact TIBCO Support

For comments or problems with this manual or the software it addresses, contact TIBCO Support as follows:• For an overview of TIBCO Support, and information about getting started with TIBCO Support, visit this

site:

http://www.tibco.com/services/support

• If you already have a valid maintenance or support contract, visit this site:

https://support.tibco.com

Entry to this site requires a username and password. If you do not have a username, you can request one.

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Chapter

1Introduction

TIBCO ActiveMatrix is the TIBCO offering for developing and deploying distributed applications. This chapterdescribes the promise and challenges of developing distributed applications and how the TIBCO ActiveMatrixplatform addresses these challenges. Subsequent chapters describe TIBCO ActiveMatrix applications and theplatform components that support the applications.

Topics

• TIBCO ActiveMatrix Overview

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TIBCO ActiveMatrix Overview

TIBCO ActiveMatrix is an enterprise ready product for developing and deploying distributed applications.TIBCO ActiveMatrix software addresses the scalability, availability, provisioning, and security challengesfor distributed applications.

Using TIBCO ActiveMatrix software, enterprises can rapidly design, implement, and test applications, deploythem to their operating environment of choice, and monitor and manage the applications end-to-end. TIBCOActiveMatrix governance support allows enterprises to advertise access to their applications.

TIBCO ActiveMatrix software is depicted in the following figure:

Figure 1: TIBCO ActiveMatrix

TIBCO ActiveMatrix defines a platform and an application model. Custom applications implement businessfunctionality and can be developed using a variety of implementation and binding technologies.

Some product features, such as support for some implementation and binding technologies and systemservices such as monitoring and logging, are provided as product applications. Product applications use thesame platform capabilities as custom applications.

The product applications available in a given installation, in particular the implementation and bindingtechnologies, depend on the particular product package you install.

The platform is divided among the following functional areas:• Design - application development, testing, and deployment• Runtime - application execution• Administration - application and system life cycle management• Governance - application monitoring, identity management, and policy management

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Chapter

2Applications

TIBCO ActiveMatrix applications conform to a service-oriented architecture (SOA). SOA is a software architecturein which applications and data are decomposed into discrete, independent services. Decomposing applicationsinto services allows enterprise application components to be reused and integrated in flexible and efficient ways.Enterprises achieve agility by virtue of discrete, independent service deployment because they can plug in andout services as their needs dictate. TIBCO ActiveMatrix supports all phases of the service-oriented application lifecycle.

Topics

• Service Component Architecture• Application Life Cycle

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Service Component Architecture

Service Component Architecture (SCA) defines a model for developing applications based on a service-orientedarchitecture. Business function is provided as a set of components assembled into a structure called a composite.SCA is the foundation of TIBCO ActiveMatrix support for service-oriented applications. This section introducesthe elements of SCA: composites, components, services, references, implementations, properties, interfaces,bindings, and message exchange patterns.

Composites

As described in the SCA Assembly specification, a composite is a configuration of services comprising anapplication that conforms to a service-oriented architecture. A composite contains components, services,references, the wires that interconnect them, and properties that are used to configure the components.Composites can be nested (contained by other composites). A root composite equates to an SCA application.

The constituents of a composite can run in a single process on a single computer or be distributed acrossmultiple processes on multiple computers. A complete application might be constructed from just onecomposite or it could combine several different composites. The components making up each composite canbe implemented using different technologies. Figure 2: Composite on page 18 depicts a composite andillustrates the relationships between composite elements.

Figure 2: Composite

You edit composites in the TIBCO Business Studio Composite Editor depicted in Figure 3: Composite Editoron page 19.

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Figure 3: Composite Editor

Components

A component is the basic element of business function. It is defined at design time.

Components are configured instances of implementations. More than one component can use and configurethe same implementation.

Components can have services, references, and properties. All of these can be promoted to the compositelevel during design time. Promotion enables an Administrator to wire or configure services, references, andproperties when the application is deployed. Services, references, and properties that are not promoted areprivate to the application and are set at design time only.

Components can have several different types of dependencies. Components can express dependencies onproduct features, custom features, other components, and resources. All of a component's dependencies mustbe satisfied for it to be deployed to a node.

Components can be deployed to multiple nodes for fault tolerance or load balancing.

Component Implementations

A component's implementation concretely provides the business function. TIBCO ActiveMatrix supports thefollowing implementation types:• Java• Mediation• Composite• WebApp• Spring• C++• Adapters

An abstract component is a component whose implementation type is unspecified but whose interfaces andconnections to services, other components, and references are defined. Abstract components can be used bysystem architects to defer the choice of implementation type while specifying the relationship of a componentto other composite elements. Abstract components cannot be packaged or deployed.

Services and References

Applications interact via services and references. A service is a set of operations and the messages requiredby the operations. A reference identifies the service consumed by a component or composite. Applicationsoffer services and invoke references to other services. An application's services and references are promotedfrom the services and references of the components it contains.

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Component services can be consumed by other components within the composite or promoted as compositeservices for use by consumers outside the composite. A composite service has an interface and one or morebindings.

Component references consume services provided by other components in the same composite or servicesprovided outside the composite. A composite reference has an interface and one binding.

Interfaces

An interface defines the contract for services and references. Services and references can interact only whenthey have the same interface. An interface defines one or more operations and each operation has zero orone request (input) message and zero or one response (output) message. The request and response messagesmay be simple types such as strings and integers or they may be complex types. In the current release, TIBCOActiveMatrix supports WSDL 1.1 port type interfaces.

Bindings

Abinding specifies how communication happens between a reference and a service. A service binding describesthe mechanism a client uses to access a service. A reference binding describes the access mechanism a referenceuses to invoke a service. References can have at most one binding.

TIBCO ActiveMatrix supports the following binding types:• Virtualization• SOAP• JMS• EJB• Adapters

Virtualization bindings connect services and references to the Messaging Bus. Virtualization bindings areautomatically created for every composite service and every wired component service and reference. Atdesign-time, Virtualization bindings of component services and references are implicit; their properties cannotbe viewed.

There are two types of Virtualization bindings: internal and external. An internal binding is associated witha component service or reference. An external binding is associated with a service or reference promoted tothe root composite. Administrators can create or modify wires connected to external bindings and can monitor,start, and stop external bindings.

SOAP, EJB, Adapters, and JMS bindings are explicitly created by architects and developers only on promotedservices and references.

Figure 4: Bindings on page 21 illustrates the different types of bindings. In the figure, bindings are indicatedby a icon. The promoted service HelloWorldPT has a SOAP and external Virtualization binding. Thecomponents have internal Virtualization bindings. The promoted reference DateManagerPT has a SOAPbinding. In addition, any time a service or reference has a binding of type other than Virtualization, a pairof proxy (Virtualization) bindings are created to connect the service or reference to the component to whichthe service or reference service is wired.

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Figure 4: Bindings

Properties

A property is an externally visible data value. Properties enable object behavior to be configured at deploymenttime.

A property has a type, which may be either simple or complex. Implementations, components, composites,bindings, logging configurations and appenders, and resource templates can have properties. Implementation,component, and composite properties are defined in TIBCO Business Studio. Binding, logging configurationand logging appender, and resource template properties are defined by the ActiveMatrix platform.

Properties can have explicit values or may be bound to substitution variables, which can be set at deploymenttime in various scopes. Depending on the object possessing the property, the property value can be boundat design time, deployment time, or both:• At design time you can provide default values and indicate whether a composite or component property

value must be set at deployment time.• Some properties can be bound to substitution variables.

At design time, a composite property value can be set to a constant or bound to a substitution variable. Eithertype of binding can be overridden at administration time. However, only the properties of the root compositeof an application or those on bindings associated with application level services and references can beoverridden. If there are nested composites (component of type composite) then their property values cannotbe changed by an Administrator.

A composite property is specific to an application. Often the same property may be defined in more than oneapplication. For business reasons or ease of use an Administrator may want to define the value only onceand have it be used by more than one composite property. This is achieved by binding the composite propertyto a substitution variable, which can be defined at the enterprise, host, environment, node, application, andapplication fragment levels. The following figure shows a property named Greeting bound to a substitutionvariable named Greeting.

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A component may be deployed to more than one node and you may want to have different values passedfor a component property in every node. In such cases you would set the component property to a substitutionvariable, and set the substitution variable to different values on each node.

Message Exchange Patterns

A provider generates and responds to messages according to the operations defined in the interface it offers.The interface is always written from the perspective of the provider. That is, if an interface says that themessages are input and then output, the provider first receives a message and then sends a message. Aconsumer uses a service, and interprets an interface in order to consume a service. The consumer handlesmessages in the opposite direction from the provider.

A message exchange pattern (MEP) defines the sequence and cardinality of messages sent between theprovider and the consumer. MEPs contain both normal and fault messages. TIBCO ActiveMatrix softwaresupports following MEPs:• One-Way (In-Only) A consumer sends a message to a provider.• Request-Response (In-Out) A consumer sends a message to a provider, with expectation of response. The

provider sends a response message. The provider may generate a fault if it fails to process the message.

Faults are errors that can occur at any point during the processing of a message. Faults can also be thrownby the target service while processing messages. In service-oriented applications, clients expect specific faultresponses to be returned when errors occur. For example, SOAP clients expect a SOAP fault message to bereturned when an error occurs during processing. Each implementation type supports methods for generatingfaults in response to error conditions.

Java Components

Java components integrate Java classes into the TIBCO ActiveMatrix platform. The integration conforms toSCA-J specifications. Java components support service implementation using the flexibility and power of ageneral purpose programming language.

TIBCO Business Studio facilitates Java component implementation by providing a rich set of automatic codegeneration and synchronization features. TIBCO Business Studio supports both WSDL-first and code-firstdevelopment.

You can develop Java components and generate classes that conform to the WSDL interface specification ofthe component's services and references. When you add a service, reference, or property to a Java componentand regenerate the implementation, TIBCO Business Studio adds fields and methods that represent theservice, reference, or property to the component's implementation class.

You can also configure an existing Java class as the implementation of a Java component and update componentproperties to match the implementation.

For information on Java components, see Java Component Development.

Mediation Components

Mediation components provide support for enterprise service bus (ESB) features and manage interactionsbetween service consumers and service providers. Mediation is the process of resolving differences betweentwo entities for example, when bridging transport or interface differences. TIBCO ActiveMatrix Mediationcomponents are implemented with Mediation Flows, which are created using the TIBCO ActiveMatrixMediation Flow Editor. The TIBCO ActiveMatrix Mediation Flow Editor provides a zero coding graphicaltool that allows you to build mediation flows between service consumers and service providers that aredescribed using WSDL files. The primary building block of a mediation flow is called a mediation task.

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Mediation tasks are primitives that implement ESB functions such as logging, data transformation, routing,and so on.

Mediation flows:• Map requests to one or more service providers. For example route requests based on the message content,

the message context, or both.• Send back response messages received from service providers with or without transforming them.• Manage faults. Mediation flows can throw faults, catch faults from service providers and transform them

to the faults expected by service consumers.• Construct and send reply messages to service consumers without invoking the service providers.• Provide access to metadata such as security context, SOAP headers and other message context details.• Use custom mediation tasks, which can be developed with custom mediation task wizards. TIBCO

ActiveMatrix mediation features provides wizards and a public API for developing custom mediationtasks.

Composites containing mediation components can address the following ESB scenarios:• Service virtualization• Transport bridging• Message exchange pattern bridging• Message content and context-based routing• Static and dynamic routing• Data transformation• Data enrichment• Data validation• Message filtering• Log message and context data

By applying one or more ESB scenarios you can implement ESB patterns such as:• Gateway (Route)• VETO (Validate, Enrich, Transform, Operate)• VETRO (Validate, Enrich, Transform, Route, Operate)

The following figure shows how a service consumer invokes a mediation flow and how the mediation flowinteracts with target services.

Figure 5: Mediation

In this figure:

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1. The service consumer, accessing the mediation service over SOAP/HTTP, invokes the query operationin the mediation service to request information.

2. Based on the contents of the message, a route task directs the message to one of three target operations,provided by web services in Asia, Europe, and the United States. Transport and interaction-protocolbridging allow communication with the target service providers to proceed.

3. For Asia and Europe, transform tasks transform the message structure and contents provided by theservice consumer to ones that the target service providers can accept.

In summary, TIBCO ActiveMatrix mediation technology provides:• Service virtualization A mediation service hides the location of service providers and details of how the

services are provided (for example, the transport protocol, message format, and schema) from serviceconsumers. Virtualization enables:– Location transparency The location of the service providers is hidden from service consumers.– Transport bridging A composite application containing one or more mediation components can

provide a bridge between service consumers and service providers that use different transport protocols.– Connections between mediation operations and target operations Mediation flows associate each

mediation operation with one or more target operations.

• Content and context-based routing A routing task placed on the input path of a mediation flow can routeservice requests to alternative target services based on the message content, message context, mediationflow parameters or all of these. A routing task can also route service requests to Throw Fault tasks, as ameans of rejecting requests.

• Data transformation When routing a service request to alternative service providers, it might be necessaryto transform the message structure, data types, or contents used by the service consumer to the onesexpected by the service provider, and vice versa. Transform tasks perform these transformations.

• Fault management Mediation flows provide the ability to map fault types reported by service providersto ones understood by service consumers. A mediation flow can also throw faults based on routing cases,rather than sending every message to a service provider. Finally, mediation flows handle runtime faultsthat occur in the mediation flow itself.

• Logging Log tasks can log elements of the message content, message context, mediation flow context orall of these elements.

• Custom mediation tasks To provide a mediation feature not present in pre-defined mediation tasks, youcan write code that performs a custom mediation task, and incorporate the task in the Mediation FlowEditor using wizards.

The following figure shows a Hello World mediation flow containing a log task opened in the MediationEditor.

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Figure 6: Mediation Flow

For information on Mediation components, see Mediation Component Development.

Composite Components

A composite may serve as the component implementation for a higher level composite. Composite componentsenable architects to structure complex applications as a hierarchical collection of parent and child composites.

When a composite is used as a component implementation the components within that composite cannot bereferenced directly by the using component. In other words, the internals of the composite are invisible tothe using component. The using component can only connect wires to the services and references of thereferenced composite and set values for properties of the composite. The services, references, and propertiesof the composite define a contract that is relied upon by the using component.

WebApp Components

A web application delivers services and content over the internet. WebApp components integrate Java EE webapplications into the TIBCO ActiveMatrix platform. The integration conforms to SCA-J specifications.

For information on WebApp components, see WebApp Component Development.

Spring Components

Spring components integrate Spring Beans into the TIBCO ActiveMatrix platform.

A Spring component is very similar to Java component, but with a difference that its implementation canconsist of more than one Java class. The classes are specified in a Spring Bean configuration file. Each SpringBean corresponds to a Java class. In Spring components, each service, reference, and property is associatedwith a Bean (as opposed to all being associated with the same Java class in the case of Java components).

For information on Spring components, see Spring Component Development.

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Application Life Cycle

TIBCO ActiveMatrix applications assume different forms in different phases of the application life cycle.

In the design phase a TIBCO ActiveMatrix application consists of one or more composites. Each applicationhas a root composite. A composite contains components, services, references, and properties. The components,services, and references depend on custom features and resources. Services, references, and propertiespromoted to the root composite comprise the public interface of the application.

The output of the design phase is a distributed application archive (DAA). A DAA contains features and anapplication template, which consists of the root composite and a set of related configuration files: nestedcomposites, resource templates, WSDL files, and substitution variable files.

In the administration phase, you create an application by instantiating an application template. The productinstaller adds product application templates to Administrator. When you upload a DAA file to Administrator,Administrator extracts the application template and (optionally) the features and resource templates.

You can configure the application by setting properties, logging configurations, and substitution variables.You can add bindings to services, promote services and references to the environment, and wire services andreferences to services and references in other applications or environments. You also specify a distributionof the application to the runtime infrastructure. You can explicitly distribute application fragments—componentsand bindings—to one or more nodes or you can specify that an application should be distributed to the samenodes as another application. When you deploy the application, Administrator applies the distribution andthe configuration. Features are automatically distributed with components, but resource instances requiredby the application must be manually installed into nodes before deployment. Life cycle operations on theapplication are translated into life cycle operations on the application fragments. You can also start and stopapplication fragments.

The following figure illustrates the application artifacts across the application life cycle.

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Figure 7: Application Life Cycle

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Chapter

3Platform

The TIBCO ActiveMatrix platform has four functional areas—design, runtime, administration, and governance—thataddress all phases of the distributed application life cycle.

Topics

• Design• Runtime• Administration• Governance

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Design

TIBCO ActiveMatrix design activities are performed in TIBCO Business Studio, an extension of the EclipseSDK Workbench. In TIBCO Business Studio, analysts, architects, and developers, design, implement, configure,test, and package TIBCO ActiveMatrix applications. Beyond the standard Eclipse Workbench features, TIBCOBusiness Studio provides:• Wizards and editors for creating projects and applications.• Resource template editors for resources such as LDAP and JDBC connections, security providers, and so

on.• Editors for specifying intents and creating policies for governed objects.• A distribution editor for specifying constraints on how application components are distributed across

nodes.• Rapid application deployment features that support deploying and testing applications on a local

deployment environment.• Tool for generating scripts to deploy applications to a remote deployment environment.• Support for debugging applications running in a remote deployment environment.

For information on TIBCO Business Studio, see Composite Development.

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Runtime

TIBCO ActiveMatrix employs a three-level runtime environment consisting of hosts, nodes, and applicationfragments. A host runs TIBCO ActiveMatrix platform services, manages the life cycle of nodes, and maintainssoftware features and resources shared between nodes. Nodes run application fragments.

The following figure illustrates a possible configuration of hosts, nodes, and application fragments. The hostmanages node A and node B. Application 1- Fragment A runs on node A. Application 2's fragments aredistributed over nodes A and B.

Figure 8: TIBCO ActiveMatrix Runtime

Hosts

A host is the runtime object that serves as the point of contact between nodes and Administrator. Hostsperform operations such as software distribution, node life cycling, and application deployment. It is notnecessary for a host to be running to perform administrative operations. Administrator queues operationsand processes them when the host and the nodes it manages are available.

A host has a software repository that contains the application templates, features, and resource adaptersavailable to the nodes managed by the host.

Hosts are typed. In the current release, the only supported type is TIBCO Host. TIBCO Host is the TIBCOnative host implementation.

A host is bound to a single Administrator server at a time. Hosts can contain nodes from multiple environmentswithin one Administrator server.

It is recommended that a host should manage nodes belonging to only one environment.

Nodes

A node is the runtime environment for applications. Nodes exist in an environment and are managed byhosts. When managed by a host, a node runs in its own OS process and JVM. You can configure a host withmultiple nodes. Nodes act as sandboxes for applications.

The reasons to use multiple nodes include:• Increase throughput.

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• Run different versions of software and limit the set of affected application fragments when updatingsoftware versions.

• Allow applications to use different resource instance configurations of the same name.• Enable fault tolerance.• Implement various security policies by limiting access to certain nodes and resources.

The reasons to share a node include:• Share resource instances between applications such as thread pools and database connection pools.• Communication between components in a node avoids serialization overheads.• Reduced overall memory utilization.

Application fragments are components or bindings of an application that are distributed and deployed tonodes. A fragment can be distributed to many nodes, and a single node can run many fragments. To increasethroughput for a component or binding you can deploy multiple copies of the fragment to multiple nodes.

A node has a set of product and features shared by resource instances and application fragments running onthe node. You can upgrade or downgrade the features to match the feature versions to those available in thesoftware repository.

The following figure depicts a configuration of environments, hosts, and nodes that illustrates the flexibilityachieved with a multinode setup. The two environments are assigned to groups of users that have responsibilityfor a specific phase of the application life cycle: Development and Production. Isolation between the groupsis achieved by creating two nodes on each host and assigning them to different environments. Nodes A andB are located on Host 1 and nodes C and D are located on Host 2. Nodes A and C are managed by theDevelopment environment and nodes B and D are managed by the Production environment. In addition,access to a JDBC resource is restricted to the nodes in the Production environment.

Figure 9: Multiple Node Scenario

Features

A feature is a software package that contains plug-ins, which in turn contain component implementationsand libraries. A feature is identified by an ID, a multi-part version, and its dependencies on other features.

There are two types of features: system and shared library. System features are part of a TIBCO ActiveMatrixproduct or contain the drivers that are installed using TIBCO Configuration Tool. Shared library featurescontain component implementations and libraries. When you create a distributed application archive containinga composite, you can package the composite's required features in the application archive or you can packagethe features as a standalone distributed application archive.

When you upload a distributed application archive containing a composite in Administrator you can optionallyimport the features contained in the archive into the Administrator software repository. When you deploy

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an application, Administrator automatically distributes the features (and any features that it depends on) tothe host that manages the nodes on which the application is distributed and installs the features on thosenodes. You can also manually install features on the other nodes managed by that host.

Resource Templates and Instances

Resource templates are defined at the enterprise level. You create resource templates in two ways:• Manually via actions in the command-line and web interfaces• Automatically when you import them during the procedure to create an application

In either case you must have the enterprise permission Create Resource Template.

A resource instance is a runtime object that represents a resource, such as an HTTP, JDBC, or LDAP connection.A resource instance instantiates the configuration defined in a resource template and makes it available toservices running on a node.

Applications, components, bindings, logging appenders, and resource templates can have properties whosevalue is the name of a resource instance. For example, an HTTP client resource template's SSL propertyconfiguration includes a property whose value is the name of SSL Client Provider resource instance. Figure10: TIBCO Business Studio Resource Instance on page 33 and Figure 11: Administrator Resource Instanceon page 33 show how to set a resource instance property in TIBCO Business Studio and Administratorrespectively.

Figure 10: TIBCO Business Studio Resource Instance

Figure 11: Administrator Resource Instance

The following figure illustrates a possible configuration of hosts, nodes, features, resource instances, andapplication fragments. In the figure the host has three product features: PF1, PF2, and PF3, one custom featureCF1, and one resource template A. Custom feature CF1 is dependent on product feature PF2. On Node A allthe available features are installed. Node B has one installed product feature and one installed resourceinstance. Application 1- Fragment A on node A is dependent on two product features: PF1 and PF3. Application2- Fragment A is dependent on custom feature CF1 and product feature PF1. Application 2- Fragment B isdependent on resource instance A. Application3 - Fragment A is dependent on the product feature PF3.

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Figure 12: Runtime Configuration

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Administration

TIBCO ActiveMatrix administration is supported by TIBCO ActiveMatrix Administrator and TIBCO BusinessStudio. In TIBCO ActiveMatrix Administrator, administrators configure environments and messaging buses,register hosts and associate them with environments, provision nodes with features and resources, anddeploy, configure, and manage applications. In TIBCO Business Studio developers deploy and debugapplications.

The following figure illustrates the relationship between TIBCO ActiveMatrix Administrator and the objectsit manages. This section provides an overview of Administrator, environments, and Messaging Bus. Runtimeon page 31 discusses hosts, nodes, applications, features, and resources. Governance on page 39 discussesTIBCO ActiveMatrix Runtime UDDI Server.

Figure 13: TIBCO ActiveMatrix Administration

TIBCO ActiveMatrix Administrator

TIBCO ActiveMatrix Administrator consists of the following components:• Administrator server• Administrator server clients

– Administrator web interface– Administrator command-line interface

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– TIBCO Business Studio

In the following figure the Administrator web interface is opened to the welcome screen.

Figure 14: TIBCO ActiveMatrixAdministrator

The communication channel between Administrator server and its clients can be secured with SSL.

Administrator server hosts TIBCO Credential Server, which provides credentials to secure communicationbetween TIBCO ActiveMatrix Administrator server, hosts, and nodes using SSL.

The node on which the Administrator server runs product applications that provide various platform services:

FunctionService

Aggregates log data from nodes and saves to persistent store.Log

Stores and retrieves large payloads for log entries.Payload

Aggregates performance data from nodes and saves to persistent store.Monitoring

Servers

Administrator servers interact with other servers:• Database - maintains Administrator server configuration, performance, log, and payload data• Authentication realm - maintains user data• Notification - propagates status messages between Administrator server, hosts, and nodes• Messaging Bus - propagates messages between applications• UDDI server - (optional) maintains published service data

The communication channels between Administrator servers and other servers can be secured with SSL. Forinformation on SSL support, see the installation manual for your product.

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Enterprise

In the TIBCO ActiveMatrix platform the term enterprise has meaning in two different contexts: runtime andadministrative.

In the runtime, enterprise refers to the collection of runtime objects that share the Enterprise Message Serviceserver that functions as the notification server. The enterprise is identified by a name specified when youcreate an Administrator server.

In Administrator, enterprise refers to the top-level administration object. An enterprise contains environments,hosts, and objects shared between all the environments in an enterprise.

Environments

An environment is a logical grouping of applications and nodes. An Administrator server can have multipleenvironments. For example, you can define environments distinguished by product life cycle function suchas development and production, by geographical area, or by business unit.

Environments provide a way to isolate one group of applications and nodes from another. This is useful forsecurity, optimizing network traffic (each environment has its own Enterprise Message Service server forservice bus communication) and visual organization in the Administrator UI.

Environments contain the following types of objects:• Applications The services and references defined by an application can be promoted to the application's

environment. Services and references promoted to the environment level can be wired to each other. Thefollowing figure illustrates a service and reference exposed by a component, promoted to the compositelevel, promoted again to the environment level, and wired between the promoted reference and service.

Figure 15: Cross Environment Wires

• Nodes Nodes are runtime sandboxes that run application logic. Node names must be unique within anenvironment and within a host.

• Messaging Bus configuration

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Administrator Environment

The environment containing the node on which the Administrator server runs, SystemNode, is namedSystemEnvironment.

Messaging Bus

An environment's Messaging Bus is the communications backbone that mediates message exchange betweenservice consumers and providers. When a consumer makes a service request, it is the responsibility ofMessaging Bus to locate providers that offer the service and deliver the message to a provider.

Messaging Bus enables service virtualization. With service virtualization, a reference does not need to knowabout the binding details of the service with which it is communicating. It only needs to know the name ofthe service. Service virtualization allows applications within an environment to communicate without requiringthe applications' promoted services and references to have bindings.

For information on TIBCO ActiveMatrix Administrator, see Administration.

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Governance

Governance involves the application and assurance of organizational mandates and guidelines. In the SOArealm, operational governance assures service execution, ensuring that services are behaving according tothe specified mandates and guidelines. It can include service monitoring, resource optimization, fault toleranceand access control. Several features in the design, runtime, and administration components of the TIBCOActiveMatrix platform support operational governance. At design-time, TIBCO Business Studio allowsapplication developers to specify intents and policy sets. At administration time, TIBCO ActiveMatrixAdministrator supports metrics collection and monitoring and credentials that support identity management.

Policy Management

Policy management involves specifying a capability of or constraint on a governed object—composite,component, service, or reference—to affect runtime behavior such as security, reliability, transactions,threading, and quality of service. Such constraints and capabilities are managed separately from the corebusiness logic of your application. To enable policy management, an application designer specifies intentsand policy sets.

An intent describes abstract constraints on the behavior of a component, or on interactions between components.Intents let application designers specify requirements in a high-level, abstract form, independent of theconfiguration details of the runtime and bindings. Intents guide administrators as they configure bindings,policies, and runtime details.

A policy is a configuration that specifies the details that TIBCO ActiveMatrix needs to enforce a constraintdeclared in an intent. A policy can also be specified without an intent.

A policy set contains one or more policies. Adding a policy set to a governed object applies its policies at theobject.

TIBCO ActiveMatrix support for intents, policy sets, and policies conforms to the SCA Policy specification.

Policies specified at design time are packaged into the deployment archive and enforced via a governanceagent embedded in the TIBCO ActiveMatrix runtime.

Monitoring

The monitoring service and dashboards in TIBCO ActiveMatrix Administrator provide summary and detailedviews into the operational health and performance of your TIBCO ActiveMatrix infrastructure, applications,and services.

The monitoring service is a TIBCO ActiveMatrix application that aggregates performance data from runtimeobjects.

Dashboards display runtime object performance statistics. They allow you to monitor the overall health andperformance of infrastructure objects, applications, and resources.

Identity Management

Identity management is supported by security resource instances that you define in TIBCO ActiveMatrixAdministrator and install in runtime nodes. The resource instances are invoked when policies are enforcedby the governance agent.

Service Registry

TIBCO ActiveMatrix Runtime UDDI Server is a lightweight Universal Description, Discovery, and Integration(UDDI) registry and metadata repository that provides a standards-based system of record for discoveringand publishing reusable business and IT services based on business classification and usage models.

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TIBCO ActiveMatrix Runtime UDDI Server can be used by other TIBCO ActiveMatrix components. Whendeveloping applications in TIBCO Business Studio you can search TIBCO ActiveMatrix Registry for services.You can configure a UDDI server in Administrator so that when you deploy an application in Administrator,the service is automatically registered in TIBCO ActiveMatrix Runtime UDDI Server.

Figure 16: TIBCO ActiveMatrixRuntime UDDI Server Service Console

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Glossary

abstract componentA component whose implementation type is unspecified but whose interfaces and connections to services,other components, and references are defined. Abstract components can be used by system architects tospecify the relationship of a component to other composite elements while deferring the choice ofimplementation type.

applicationAn instance of an application template.

application fragmentA component or binding running on a node.

application templateA root composite and a set of related configuration files including nested composites, WSDL files, substitutionvariable files, and resource templates.

bindingA transport configuration that specifies how messages are transported from service consumers to providers.A service can have multiple bindings. A reference can have one binding.

bundleAn OSGi mechanism for grouping Java classes into a modular, sharable unit. In TIBCO Business Studio, aplug-in implements a bundle.

componentA configured implementation that provides a business function as a service and consumes other services.

compositeAn assembly of components, services, references, and properties and the wires that encapsulate the connectionsbetween these elements.

distributed application archive (DAA)A package for applications, libraries, and adapter archives. A DAA contains zero or more application templates,custom features, and an optional distribution.

distributionSpecifies a mapping of one or more application fragments to one or more logical nodes.

endpointA runtime object that manages each direction of the messages associated with the operation supported by abinding.

enterprise archive (EAR)A TIBCO ActiveMatrix Adapters deployment package. An EAR file is created in TIBCO Designer and isassembled from one or more adapter archives. The EAR file is uploaded to Administrator when creating anapplication. During uploading and parsing an EAR file adapter configurations are identified, global variablesare collected and an application template containing a TIBCO ActiveMatrix Implementation Type for Adapterscomponent is created.

environmentA logical grouping of applications and nodes.

featureA software package that specifies the plug-ins (bundles) it includes and the features on which it depends.There are two types of features:• System, which are defined by the TIBCO ActiveMatrix product.• Shared library, which contain component implementations and libraries.

governed objectAn element at which TIBCO ActiveMatrix can enforce policies. The following elements can be governedobjects:• Composite• Component• Component service or reference

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• Promoted service or reference• Binding

hostRuntime entity that manages nodes and installed TIBCO ActiveMatrix software.

identity providerA resource that encapsulates a user identity. The identity may be implemented using usernames and passwordsor other credentials.

intentDescribes abstract constraints on the behavior of a component, or on interactions between components. Intentslet application designers specify requirements in a high-level, abstract form, independent of the configurationdetails of the runtime and bindings. Intents guide administrators as they configure bindings, policies, andruntime details.

interfaceDefines the contract for services and references.

keystoreA database of keys and certificates. Keystores contain keystore entries, which serve as identities for participantsin SSL sessions.

keystore providerA resource that encapsulates a keystore credential.

log appenderAn output destination for a logger.

logging configurationAn object that identifies the level of events to be logged and whether to pass messages to a parent logger.

logical nodeA heterogeneous group of application fragments that must be deployed to the same physical node. Youcannot distribute fragments to different nodes if they are contained in the same logical node.

messageThe basic unit of communication between a requester and a service. An abstract, typed definition of the datarequired by an operation.

message exchange pattern (MEP)The sequence of messages in an operation. This sequence includes the order, direction, and cardinality of thenormal and fault messages.

nodeThe runtime environment for application fragments.

operationThe set of messages required to perform a single abstract action. An operation has zero or one request (input)message and zero or one response (output) message, and zero or more fault messages.

policyA configuration that specifies the precise details that TIBCO ActiveMatrix needs to enforce a constraintdeclared in an intent. A policy can also be specified without an intent.

policy setContains one or more policies. Adding a policy set to a governed object applies its policies at the object. Whenyou add a policy set, you are explicitly requesting that TIBCO ActiveMatrix enforce all its policies for thegoverned object.

promotionThe process whereby services and references defined by an object are made visible at the level of its containerobject. The service and references of a component can be promoted to its containing composite and the servicesand references of an application can be promoted to its containing environment.

propertyData that influences the behavior of an application fragment. Property values can be configured when thefragment is deployed.

referenceIdentifies the service consumed by a component or composite.

resource instanceAn instance of a resource template.

resource template

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A configuration of the properties required by a resource.service

A set of operations and the messages required by the operations.service-oriented architecture (SOA)

A software architecture in which applications are decomposed into discrete, operationally independentservices, which can be executed in a highly distributed manner. SOA is based on three principles:• Modularity - Breaking tasks and services into smaller tasks or services.• Encapsulation - Clearly defined interfaces that insulate a service's internal workings from outside contact.• Reuse - Re-assembling services into composite applications that support new business processes.

SOA inherently encompasses a heterogeneous collection of platforms and sources. Enterprise applicationsmay be hosted on Java and .NET platforms, as well as third-party packaged systems and legacy applications.SOA infrastructure spans these varied application architectures and provides mediation between them.

Service Component Architecture (SCA)A set of specifications that describe a model for constructing composite applications that conform to aservice-oriented architecture.

service virtualizationThe messaging configuration specified in an environment that enables message transport between theenvironment's wired service providers and consumers in the absence of associated bindings.

software repositoryA set of folders on the file system that act as a source of software features. The file system folders must beaccessible from an Administrator server. The software repository holds metadata about products and productfeatures. Administrator uses the following software repositories:• Product - A read-only software repository containing the TIBCO products installed by TIBCO installers.• Administrator - Read-write software repository containing features uploaded into Administrator.

substitution variableA variable that you can reuse in resource and application configurations. Substitution variables enable latebinding of property values to values available in Administrator at deployment time. At design time, insteadof explicitly setting property values, they are bound to a substitution variable. Administrators set thesubstitution variables values to values supported by the resources available on the node on which the resourcesare installed and applications are deployed.

trust providerA resource that encapsulates access to a trust store.

trust storeA keystore containing trusted certificates.

wireA connection between a service and a reference.

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