## org.apache.tools.ant.taskdefs.optional.perforce
Class P4HandlerAdapter

    java.lang.Object
      |
      +--org.apache.tools.ant.taskdefs.optional.perforce.P4HandlerAdapter

All Implemented Interfaces:
  ExecuteStreamHandler, P4Handler

Direct Known Subclasses:
  SimpleP4OutputHandler

public abstract class P4HandlerAdapter
extends java.lang.Object
implements P4Handler

base class to manage streams around the execution of the Perforce command line client

Author:
  Les Hughes

Constructor Summary
`P4HandlerAdapter()`

Method Summary
`abstract void` `process(java.lang.String line)` subclasses of P4HandlerAdapter must implement this routine processing of one line of stdout or of stderr
`void` `setOutput(java.lang.String p4Input)` set any data to be written to P4's stdin
`void` `setProcessErrorStream(java.io.InputStream is)` connects the handler to the stderr of the Perforce process
`void` `setProcessInputStream(java.io.OutputStream os)` connects the handler to the input stream into Perforce used indirectly by tasks requiring to send specific standard input such as p4label, p4change
`void` `setProcessOutputStream(java.io.InputStream is)` connects the handler to the stdout of the Perforce process
`void` `start()` this routine gets called by the execute routine of the Execute class it connects the PumpStreamHandler to the input/output/error streams of the process.
`void` `stop()` stops the processing of streams called from P4Base#execP4Command(String command, P4Handler handler)

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

Constructor Detail

### P4HandlerAdapter

    public P4HandlerAdapter()

Method Detail

### setOutput

    public void setOutput(java.lang.String p4Input)

  set any data to be written to P4's stdin

  Specified by:
    `setOutput` in interface `P4Handler`
  Parameters:
    `p4Input` - the text to write to P4's stdin

### process

    public abstract void process(java.lang.String line)

  subclasses of P4HandlerAdapter must implement this routine processing of one line of stdout or of stderr

  Specified by:
    `process` in interface `P4Handler`
  Parameters:
    `line` - line of stdout or stderr to process

### start

    public void start()
               throws BuildException

  this routine gets called by the execute routine of the Execute class it connects the PumpStreamHandler to the input/output/error streams of the process.

  Specified by:
    `start` in interface `ExecuteStreamHandler`
  Throws:
    `BuildException`
  See Also:
    `Execute.execute()`

### stop

    public void stop()

  stops the processing of streams called from P4Base#execP4Command(String command, P4Handler handler)

  Specified by:
    `stop` in interface `ExecuteStreamHandler`
  See Also:
    `P4Base.execP4Command(String, P4Handler)`

### setProcessInputStream

    public void setProcessInputStream(java.io.OutputStream os)
                               throws java.io.IOException

  connects the handler to the input stream into Perforce used indirectly by tasks requiring to send specific standard input such as p4label, p4change

  Specified by:
    `setProcessInputStream` in interface `ExecuteStreamHandler`
  Parameters:
    `os` - the stream bringing input to the p4 executable
  Throws:
    `java.io.IOException` - under unknown circumstances

### setProcessErrorStream

    public void setProcessErrorStream(java.io.InputStream is)
                               throws java.io.IOException

  connects the handler to the stderr of the Perforce process

  Specified by:
    `setProcessErrorStream` in interface `ExecuteStreamHandler`
  Parameters:
    `is` - stderr coming from Perforce
  Throws:
    `java.io.IOException` - under unknown circumstances

### setProcessOutputStream

    public void setProcessOutputStream(java.io.InputStream is)
                                throws java.io.IOException

  connects the handler to the stdout of the Perforce process

  Specified by:
    `setProcessOutputStream` in interface `ExecuteStreamHandler`
  Parameters:
    `is` - stdout coming from Perforce
  Throws:
    `java.io.IOException` - under unknown circumstances

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