/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE
* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at
* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
* add the following below this CDDL HEADER, with the fields enclosed
* by brackets "[]" replaced with your own identifying information:
* Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*
*
* Copyright 2006-2008 Sun Microsystems, Inc.
*/
package org.opends.server.loggers;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import static org.opends.server.loggers.debug.DebugLogger.*;
import org.opends.server.loggers.debug.DebugTracer;
import org.opends.server.types.DebugLogLevel;
/**
* This class implements a post rotation action that compresses
* the file using ZIP compression.
*/
public class ZIPAction implements PostRotationAction
{
/**
* The tracer object for the debug logger.
*/
private static final DebugTracer TRACER = getTracer();
private File originalFile;
private File newFile;
private boolean deleteOriginal;
/**
* Create the action based on the original file, the new file after
* compression and whether the original file should be deleted.
*
* @param origFile The source file name to compress.
* @param newFile The compressed file name.
* @param deleteOrig Whether the source file should be deleted after
* compression or not.
*/
public ZIPAction(String origFile, String newFile, boolean deleteOrig)
{
this.originalFile = new File(origFile);
this.newFile = new File(newFile);
this.deleteOriginal = deleteOrig;
}
/**
* The compression action that is executed. Returns true if the
* compression succeeded and false otherwise.
*
* @return <CODE>true</CODE> if the compression was successful, or
* <CODE>false</CODE> if it was not.
*/
public boolean execute()
{
FileInputStream fis = null;
ZipOutputStream zip = null;
boolean inputStreamOpen = false;
boolean outputStreamOpen = false;
try
{
if(!originalFile.exists())
{
System.err.println("Source file does not exist:" + originalFile);
return false;
}
fis = new FileInputStream(originalFile);
inputStreamOpen = true;
FileOutputStream fos = new FileOutputStream(newFile);
zip = new ZipOutputStream(fos);
outputStreamOpen = true;
ZipEntry zipEntry = new ZipEntry(originalFile.getName());
zip.putNextEntry(zipEntry);
byte[] buf = new byte[8192];
int n;
while((n = fis.read(buf)) != -1)
{
zip.write(buf, 0, n);
}
zip.close();
outputStreamOpen = false;
fis.close();
inputStreamOpen = false;
if(deleteOriginal)
{
if(!originalFile.delete())
{
System.err.println("Cannot delete original file:" + originalFile);
return false;
}
}
return true;
} catch(IOException ioe)
{
if (debugEnabled())
{
TRACER.debugCaught(DebugLogLevel.ERROR, ioe);
}
if (inputStreamOpen)
{
try
{
fis.close();
}
catch (Exception fe)
{
if (debugEnabled())
{
TRACER.debugCaught(DebugLogLevel.ERROR, fe);
}
// Cannot do much. Ignore.
}
}
if (outputStreamOpen)
{
try
{
zip.close();
}
catch (Exception ze)
{
if (debugEnabled())
{
TRACER.debugCaught(DebugLogLevel.ERROR, ze);
}
// Cannot do much. Ignore.
}
}
return false;
}
}
}