com.cloudbees.diff.provider
Class CmdlineDiffProvider

java.lang.Object
  com.cloudbees.diff.provider.DiffProvider
      com.cloudbees.diff.provider.CmdlineDiffProvider

All Implemented Interfaces:

Serializable

public class CmdlineDiffProvider
extends DiffProvider
implements Serializable

The parser of an external diff utility compatible with Unix diff output.

The implementtaion is interruptible by Thread.interrupt(). On interrupt it kills external program and throws InterruptedIOException,

Author:

Martin Entlicher

See Also:

Serialized Form

Field Summary

static String

DIFF_REGEXP

Constructor Summary

CmdlineDiffProvider(String diffCmd)
Creates new CmdlineDiffProvider

Method Summary

Diff	computeDiff(Reader r1, Reader r2) Create the differences of the content two streams.
static CmdlineDiffProvider	createDefault()
String	getDiffCommand() Get the diff command being used.
static void	outputLine(String elements, Pattern pattern, List<Difference> differences, StringBuffer firstText, StringBuffer secondText) This method is called, with elements of the output data.
void	setDiffCommand(String diffCmd) Set a new diff command.
static void	setTextOnLastDifference(List<Difference> differences, StringBuffer firstText, StringBuffer secondText)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DIFF_REGEXP

public static final String DIFF_REGEXP

See Also:

Constant Field Values

Constructor Detail

CmdlineDiffProvider

public CmdlineDiffProvider(String diffCmd)

Creates new CmdlineDiffProvider

Parameters:

diffCmd - The diff command. Must contain "{0}" and "{1}", which will be replaced with the files being compared.

Method Detail

createDefault

public static CmdlineDiffProvider createDefault()

setDiffCommand

public void setDiffCommand(String diffCmd)

Set a new diff command.

Parameters:

diffCmd - The diff command. Must contain "{0}" and "{1}", which will be replaced with the files being compared.

getDiffCommand

public String getDiffCommand()

Get the diff command being used.

computeDiff

public Diff computeDiff(Reader r1,
                        Reader r2)
                 throws IOException

Create the differences of the content two streams.

Specified by:

computeDiff in class DiffProvider

Parameters:

r1 - the first source

r2 - the second source to be compared with the first one.

Returns:

the list of differences found, instances of Difference; or null when some error occured.

Throws:

IOException - when the reading from input streams fails.

setTextOnLastDifference

public static void setTextOnLastDifference(List<Difference> differences,
                                           StringBuffer firstText,
                                           StringBuffer secondText)

outputLine

public static void outputLine(String elements,
                              Pattern pattern,
                              List<Difference> differences,
                              StringBuffer firstText,
                              StringBuffer secondText)

This method is called, with elements of the output data.

Parameters:

elements - the elements of output data.