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h1. Introduction

Petals ESB provides support for managing the system using the scripting language [Apache Ant 1.5 (or newer)|http://ant.apache.org/]. This section details the mapping of the management functions provided through JMX management beans to Ant tasks.

Ant scripts are written using XML. Each task is defined syntactically as named XML attributes and XML elements. Each task defines an element; nested elements are contained within the task element.

Writers of Ant scripts should promote portability of such scripts by supplying necessary Ant task parameters explicitly, rather than depend on implementation-specific default values. Parameterization of scripts, using Ant properties, is a good practice.

This documentation is a part of the JBI specifications.

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h1. General

h2. Error Suppression
All Petals ESB Ant tasks include an optional attribute, “failOnError”, which defaults to true. If this attribute’s
value is false, the task will never fail even if an error occurs during the Ant task execution.

{anchor:xmlOutput}
h2. Attribute {{xmlOutput}}

If the {{xmlOutput}} attribute is specified, the task must produce an XML document conforming to the following XML schema:
{code}
default namespace = "http://java.sun.com/xml/ns/jbi/component-info-list"
start = element component-info-list {
# version = "1.0" in this revision
attribute version { xsd:decimal },
component-info*
}

component-info =
element component-info {
attribute type { "service-engine" | "binding-component" | "shared-library" },
attribute name { text },
attribute state { "Shutdown" | "Started" | "Stopped" | "Unknown" },
element description { text },
element* -this:* { text }*
}
{code}

If {{xmlOutput}} is not specified, an implementation-defined text format MUST be output. An example of such an output is below:
{code}
-----------------------------------------
------------ Service Engines ------------
-----------------------------------------
Name: Test_engine1
State: Started
Description: Test engine with shared library.

Name: ant_test_engine2
State: Shutdown
Description: Yet another test engine.
{code}

An Ant script to produce equivalent XML output, and the output itself is show in the next two listings.
{code}
<jbi-list-service-engines xmlOutput="jbi.output"/>
<!-- The value of the property ${jbi.output} contains the XML output of the task. -->
<!-- The user can acccess the XML text using the property value. For instance: -->
<echo message="${jbi.output}"/>
{code}
{code}
<?xml version="1.0" encoding="utf-8"?>
<component-info-list xmlns="http://java.sun.com/xml/ns/jbi/component-info-list" version="1.0">
<component-info type="service-engine" name="Test_engine1" state="Started">
<description>Test engine with shared library.</description>
</component-info>
<component-info type="service-engine" name="ant_test_engine2" state="Shutdown">
<description>Yet another test engine.</description>
</component-info>
</component-info-list>
{code}

The schema is used as follows:
* *component-info* contains information about a single component. It contains:
** *type*. This indicates the component type.
** *name*. The unique component name, as supplied by its installation descriptor.
** *state*. The execution state of the component. Note that extension states are substates of the “Started” state, and that if the component is in an extended state it will show as “started” in this attribute.
** *description*. The description of the component, as supplied by its installation descriptor.
** *optional extension elements*. This area allows the implementation to provide extra, implementation-specific component information.

h1. Petals ESB Ant tasks

h2. Task {{jbi-install-component}}

This task installs a JBI component (a service engine or binding component) into a Petals ESB container. The installation process provided by this task load and install the component. This task takes optional installation configuration parameters as name/value pairs for setting the attributes of the {{InstallerConfigurationMBean}} during the installation. The task takes the configuration parameters as
optional nested {{<param>}} elements, or using an optional {{params}} attribute if the parameters are in a file.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| file | Fully qualified installation file path name. The file contains a component installation package. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |
| params | Location of a text file (e.g. configuration.properties) that contains name/value pairs corresponding to the properties of the configuration MBean. | | No |

h3. Nested element {{<param>}}
This nested element is an optional child element containing an installation configuration parameter which will be passed to the install task. Multiple parameters require multiple {{<param>}} elements, one per parameter. This element takes a name/value pair for setting the property of the {{InstallerConfigurationMBean}} implemented by the installer of the component.
Note that the attribute name value is case sensitive. For example, if the configuration MBean has a attribute Foo as a “setFoo” not as a “setfoo”, then the name attribute value for the param element must be “Foo”. Passing the name attribute value as “foo” will result in a property not found error.

|| Attribute || Description || Default ||Required ? ||
| name | Name of the property on the InstallerConfigurationMBean. Note that the attribute name is case sensitive. For example, if the {{ConfigurationMBean}} has a attribute Foo as a “setFoo” not as a “setfoo”, then the name attribute for the param element should be “Foo”. Passing the name attribute as “foo” will result in a property not found error. | | Yes |
| value | Value of the property to be set. | | Yes |

h3. Attribute {{params}}

This attribute is optional, indicating the location of a file containing installation configuration parameters which will be passed to the install task. This attribute specifies the location of a file that contains a set of name/value pairs corresponding to the attributes of the {{InstallerConfigurationMBean}} implemented by the {{Bootstrap}} implementation of the component. The Ant task read the indicated file as a java.util.Properties file, and use each named property to set equivalent attributes of the installer extension MBean.
If the {{jbi-install-component}} element contains a {{<param>}} child element, as well as a {{params}} attribute, the Ant task combine the two parameter lists, giving precedence to those defined in the properties file indicated by the {{params}} attribute. This precedence rule allows tools to generate properties files that can customize standard Ant scripts for performing installation of components.

h3. Example

This example uses script-supplied parameters to provide the configuration data:
{code:xml}
<!-- install component -->
<jbi-install-component host = "localhost" port="7890" file = "${my.dev.dir.path}/bpel-engine.zip" />
<param name="Foo1" value="bar1" />
<param name="Foo2" value="bar2" />
</jbi-install-component>
{code}

Alternatively, an external file can be used to supply the configuration data:
{code}
<!-- install component -->
<jbi-install-component file="dir/component.zip" params="dir/params.properties" port="555"/>
where the contents of the dir/params.properties file are:
Foo1=bar1
Foo2=bar2
{code}

h2. Task {{jbi-uninstall-component}}

This task uninstalls a previously installed JBI component (service engine or binding) from the Petals ESB container.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the JBI component in the Petals ESB container. This is the unique name specified in the component’s installation descriptor. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-install-shared-library}}

This task installs a shared library into a Petals ESB container.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| file | Shared library installation file path/name. This file is a shared-library installation package. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-uninstall-shared-library}}

This task uninstalls a previously installed share library from a JBI environment.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the shared library in the Petals ESB container. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-start-component}}

This task starts a particular JBI component (service engine or binding component) in a Petals ESB container.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the JBI component in the Petals ESB container to start. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-stop-component}}

This task stops a particular JBI component (service engine or binding component) in the Petals ESB container.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the JBI component in the Petals ESB container to stop. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-shut-down-component}}

This task shuts down a particular JBI component (service engine or binding component) in a Petals ESB container.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the JBI component in the Petals ESB container to shutdown. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-deploy-service-assembly}}

This task deploys a service assembly into a Petals ESB container.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| file | Fully qualified service assembly file path. The file should be packaged according to the JBI service assembly packaging. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-undeploy-service-assembly}}

This task undeploys a previously deployed service assembly from a Petals ESB container.

|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the service assembly that is in the Petals ESB container. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-start-service-assembly}}

This task starts a particular service assembly in a Petals ESB container. The attributes for this task are listed below:
|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the service assembly that is in the Petals ESB container. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-stop-service-assembly}}

This task stops a particular service assembly in a Petals ESB container. The attributes for this task are listed below:
|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the service assembly that is in the Petals ESB container. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-shut-down-service-assembly}}

This task shuts down a particular service assembly in a Petals ESB container. The attributes for this task are listed below:
|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| name | Name of the service assembly that is in the Petals ESB container. | | Yes |
| failOnError | Signal task failure to Ant. | {{true}} | No |

h2. Task {{jbi-list-service-engines}}

This task prints information about all of the Service Engines in a Petals ESB container. The attributes for this task
are listed below:
|| Attribute || Description || Default ||Required ? ||
| host | Target Petals ESB container. | {{localhost}} | No |
| port | JMX Remote port on the target server. | {{7700}} | No |
| username | User name for security. | "" | No |
| password | Password for security. | "" | No |
| state | Lists the Engines that are in the specified state. Without this parameter, list engines with all states. Valid states are: “shutdown”, “started”, “stopped” (not case sensitive) | | No |
| sharedLibraryName | List the Engines that are dependent on the specified shared library Without this parameter, no shared library dependency is verified. | | No |
| serviceAssemblyName | List the Engines that have Service Units deployed to them as part of the Service Assembly deployed in the Petals ESB contaienr. Without this parameter, no Service Assembly dependency is verified. | | No |