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## org.apache.catalina.ant.jmx
Class JMXAccessorGetTask

    java.lang.Object
      org.apache.tools.ant.ProjectComponent
          org.apache.tools.ant.Task
              org.apache.catalina.ant.BaseRedirectorHelperTask
                  org.apache.catalina.ant.jmx.JMXAccessorTask
                      org.apache.catalina.ant.jmx.JMXAccessorGetTask

All Implemented Interfaces:
  java.lang.Cloneable

    public class JMXAccessorGetTask

extends JMXAccessorTask

Access JMX JSR 160 MBeans Server.

- Get Mbeans attributes
- Show Get result as Ant console log
- Bind Get result as Ant properties

Examples:
Get a Mbean IDataSender attribute nrOfRequests and create a new ant property IDataSender.9025.nrOfRequests

       <jmx:get
               ref="jmx.server"
               name="Catalina:type=IDataSender,host=localhost,senderAddress=192.168.1.2,senderPort=9025"
               attribute="nrOfRequests"
               resultproperty="IDataSender.9025.nrOfRequests"
               echo="false">
           />

First call to a remote MBeanserver save the JMXConnection a referenz jmx.server

These tasks require Ant 1.6 or later interface.

Since:
  5.5.10
Version:
  $Id: JMXAccessorGetTask.java 939336 2010-04-29 15:00:41Z kkolinko $
Author:
  Peter Rossbach

Field Summary

Fields inherited from class org.apache.catalina.ant.jmx.JMXAccessorTask
`JMX_SERVICE_PREFIX, JMX_SERVICE_SUFFIX`

Fields inherited from class org.apache.catalina.ant.BaseRedirectorHelperTask
`alwaysLog, failOnError, redirectErrStream, redirector, redirectorConfigured, redirectorElement, redirectOutput, redirectOutStream`

Fields inherited from class org.apache.tools.ant.Task
`target, taskName, taskType, wrapper`

Fields inherited from class org.apache.tools.ant.ProjectComponent
`description, location, project`

Constructor Summary
`JMXAccessorGetTask()`

Method Summary
`java.lang.String` | `getAttribute()`
`java.lang.String` | `getInfo()` Return descriptive information about this implementation and the corresponding version number, in the format `<description>/<version>`.
`java.lang.String` | `jmxExecute(javax.management.MBeanServerConnection jmxServerConnection)` Execute the specified command, based on the configured properties.
`protected java.lang.String` | `jmxGet(javax.management.MBeanServerConnection jmxServerConnection, java.lang.String name)`
`void` | `setAttribute(java.lang.String attribute)`

Methods inherited from class org.apache.catalina.ant.jmx.JMXAccessorTask
`accessJMXConnection, convertStringToType, createJMXConnection, createProperty, createProperty, echoResult, execute, getDelimiter, getHost, getIf, getJMXConnection, getName, getPassword, getPort, getProperties, getProperty, getRef, getResultproperty, getUnless, getUrl, getUsername, isEcho, isSeparatearrayresults, isUseRef, setDelimiter, setEcho, setHost, setIf, setName, setPassword, setPort, setProperty, setRef, setResultproperty, setSeparatearrayresults, setUnless, setUrl, setUsername, testIfCondition, testUnlessCondition`

Methods inherited from class org.apache.catalina.ant.BaseRedirectorHelperTask
`addConfiguredRedirector, closeRedirector, handleErrorFlush, handleErrorOutput, handleFlush, handleFlush, handleOutput, handleOutput, isFailOnError, openRedirector, setAlwaysLog, setAppend, setCreateEmptyFiles, setError, setErrorProperty, setFailonerror, setLogError, setOutput, setOutputproperty`

Methods inherited from class org.apache.tools.ant.Task
`bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleInput, init, isInvalid, log, log, log, log, maybeConfigure, perform, reconfigure, setOwningTarget, setRuntimeConfigurableWrapper, setTaskName, setTaskType`

Methods inherited from class org.apache.tools.ant.ProjectComponent
`clone, getDescription, getLocation, getProject, setDescription, setLocation, setProject`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### JMXAccessorGetTask

    public JMXAccessorGetTask()

Method Detail

### getInfo

    public java.lang.String getInfo()

  Return descriptive information about this implementation and the corresponding version number, in the format `<description>/<version>`.

  Overrides:
    `getInfo` in class `JMXAccessorTask`

### getAttribute

    public java.lang.String getAttribute()

  Returns:
    Returns the attribute.

### setAttribute

    public void setAttribute(java.lang.String attribute)

  Parameters:
    `attribute` - The attribute to set.

### jmxExecute

    public java.lang.String jmxExecute(javax.management.MBeanServerConnection jmxServerConnection)
                                throws java.lang.Exception

  Execute the specified command, based on the configured properties. The input stream will be closed upon completion of this task, whether it was executed successfully or not.

  Overrides:
    `jmxExecute` in class `JMXAccessorTask`
  Throws:
    `org.apache.tools.ant.BuildException` - if an error occurs
    `java.lang.Exception` - if an error occurs

### jmxGet

    protected java.lang.String jmxGet(javax.management.MBeanServerConnection jmxServerConnection,
                                      java.lang.String name)
                               throws java.lang.Exception

  Parameters:
    `jmxServerConnection` -
    `name` -
  Returns:
    The value of the given named attribute
  Throws:
    `java.lang.Exception`

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