Recorder (Apache Ant API)
Date: 2013-12-23

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## org.apache.tools.ant.taskdefs
Class Recorder

    java.lang.Object
      org.apache.tools.ant.ProjectComponent
          org.apache.tools.ant.Task
              org.apache.tools.ant.taskdefs.Recorder

All Implemented Interfaces:
  java.lang.Cloneable, java.util.EventListener, BuildListener, SubBuildListener

    public class Recorder

extends Task
implements SubBuildListener

Adds a listener to the current build process that records the output to a file.

Several recorders can exist at the same time. Each recorder is associated with a file. The filename is used as a unique identifier for the recorders. The first call to the recorder task with an unused filename will create a recorder (using the parameters provided) and add it to the listeners of the build. All subsequent calls to the recorder task using this filename will modify that recorders state (recording or not) or other properties (like logging level).

Some technical issues: the file's print stream is flushed for "finished" events (buildFinished, targetFinished and taskFinished), and is closed on a buildFinished event.

Since:
  Ant 1.4
Version:
  0.5
See Also:
  `RecorderEntry`

Nested Class Summary
`static class` | `Recorder.ActionChoices` A list of possible values for the `setAction()` method.
`static class` | `Recorder.VerbosityLevelChoices` A list of possible values for the `setLoglevel()` method.

Field Summary

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
`Recorder()`

Method Summary
`void` | `buildFinished(BuildEvent event)` Cleans recorder registry.
`void` | `buildStarted(BuildEvent event)` Empty implementation required by SubBuildListener interface.
`void` | `execute()` The main execution.
`protected RecorderEntry` | `getRecorder(java.lang.String name, Project proj)` Gets the recorder that's associated with the passed in name.
`void` | `init()` Overridden so we can add the task as build listener.
`void` | `messageLogged(BuildEvent event)` Empty implementation required by SubBuildListener interface.
`void` | `setAction(Recorder.ActionChoices action)` Sets the action for the associated recorder entry.
`void` | `setAppend(boolean append)` Whether or not the logger should append to a previous file.
`void` | `setEmacsMode(boolean emacsMode)` Set emacs mode.
`void` | `setLoglevel(Recorder.VerbosityLevelChoices level)` Sets the level to which this recorder entry should log to.
`void` | `setName(java.lang.String fname)` Sets the name of the file to log to, and the name of the recorder entry.
`void` | `subBuildFinished(BuildEvent event)` Cleans recorder registry, if this is the subbuild the task has been created in.
`void` | `subBuildStarted(BuildEvent event)` Empty implementation required by SubBuildListener interface.
`void` | `targetFinished(BuildEvent event)` Empty implementation required by SubBuildListener interface.
`void` | `targetStarted(BuildEvent event)` Empty implementation required by SubBuildListener interface.
`void` | `taskFinished(BuildEvent event)` Empty implementation required by SubBuildListener interface.
`void` | `taskStarted(BuildEvent event)` Empty implementation required by SubBuildListener interface.

Methods inherited from class org.apache.tools.ant.Task
`bindToOwner, getOwningTarget, getRuntimeConfigurableWrapper, getTaskName, getTaskType, getWrapper, handleErrorFlush, handleErrorOutput, handleFlush, handleInput, handleOutput, 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

### Recorder

    public Recorder()

Method Detail

### init

    public void init()

  Overridden so we can add the task as build listener.

  Overrides:
    `init` in class `Task`
  Since:
    Ant 1.7

### setName

    public void setName(java.lang.String fname)

  Sets the name of the file to log to, and the name of the recorder entry.

  Parameters:
    `fname` - File name of logfile.

### setAction

    public void setAction(Recorder.ActionChoices action)

  Sets the action for the associated recorder entry.

  Parameters:
    `action` - The action for the entry to take: start or stop.

### setAppend

    public void setAppend(boolean append)

  Whether or not the logger should append to a previous file.

  Parameters:
    `append` - if true, append to a previous file.

### setEmacsMode

    public void setEmacsMode(boolean emacsMode)

  Set emacs mode.

  Parameters:
    `emacsMode` - if true use emacs mode

### setLoglevel

    public void setLoglevel(Recorder.VerbosityLevelChoices level)

  Sets the level to which this recorder entry should log to.

  Parameters:
    `level` - the level to set.
  See Also:
    `Recorder.VerbosityLevelChoices`

### execute

    public void execute()
                 throws BuildException

  The main execution.

  Overrides:
    `execute` in class `Task`
  Throws:
    `BuildException` - on error

### getRecorder

    protected RecorderEntry getRecorder(java.lang.String name,
                                        Project proj)
                                 throws BuildException

  Gets the recorder that's associated with the passed in name. If the recorder doesn't exist, then a new one is created.

  Parameters:
    `name` - the name of the recorder
    `proj` - the current project
  Returns:
    a recorder
  Throws:
    `BuildException` - on error

### buildStarted

    public void buildStarted(BuildEvent event)

  Empty implementation required by SubBuildListener interface.

  Specified by:
    `buildStarted` in interface `BuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7

### subBuildStarted

    public void subBuildStarted(BuildEvent event)

  Empty implementation required by SubBuildListener interface.

  Specified by:
    `subBuildStarted` in interface `SubBuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7

### targetStarted

    public void targetStarted(BuildEvent event)

  Empty implementation required by SubBuildListener interface.

  Specified by:
    `targetStarted` in interface `BuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7
  See Also:
    `BuildEvent.getTarget()`

### targetFinished

    public void targetFinished(BuildEvent event)

  Empty implementation required by SubBuildListener interface.

  Specified by:
    `targetFinished` in interface `BuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7
  See Also:
    `BuildEvent.getException()`

### taskStarted

    public void taskStarted(BuildEvent event)

  Empty implementation required by SubBuildListener interface.

  Specified by:
    `taskStarted` in interface `BuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7
  See Also:
    `BuildEvent.getTask()`

### taskFinished

    public void taskFinished(BuildEvent event)

  Empty implementation required by SubBuildListener interface.

  Specified by:
    `taskFinished` in interface `BuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7
  See Also:
    `BuildEvent.getException()`

### messageLogged

    public void messageLogged(BuildEvent event)

  Empty implementation required by SubBuildListener interface.

  Specified by:
    `messageLogged` in interface `BuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7
  See Also:
    `BuildEvent.getMessage()`, `BuildEvent.getException()`, `BuildEvent.getPriority()`

### buildFinished

    public void buildFinished(BuildEvent event)

  Cleans recorder registry.

  Specified by:
    `buildFinished` in interface `BuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7
  See Also:
    `BuildEvent.getException()`

### subBuildFinished

    public void subBuildFinished(BuildEvent event)

  Cleans recorder registry, if this is the subbuild the task has been created in.

  Specified by:
    `subBuildFinished` in interface `SubBuildListener`
  Parameters:
    `event` - ignored.
  Since:
    Ant 1.7
  See Also:
    `BuildEvent.getException()`

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