/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2014-2015 ForgeRock AS
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*/
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package org.opends.server.loggers;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.util.zip.GZIPOutputStream;
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import org.forgerock.i18n.slf4j.LocalizedLogger;
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/**
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* This class implements a post rotation action that compresses
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* the file using GZIP compression.
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*/
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class GZIPAction implements PostRotationAction
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{
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private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
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private File originalFile;
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private File newFile;
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private boolean deleteOriginal;
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/**
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* Create the action based on the original file, the new file after
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* compression and whether the original file should be deleted.
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*
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* @param origFile The source file name to compress.
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* @param newFile The compressed file name.
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* @param deleteOrig Whether the source file should be deleted after
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* compression or not.
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*/
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GZIPAction(String origFile, String newFile, boolean deleteOrig)
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{
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this.originalFile = new File(origFile);
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this.newFile = new File(newFile);
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this.deleteOriginal = deleteOrig;
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}
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/**
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* The compression action that is executed. Returns true if the
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* compression succeeded and false otherwise.
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*
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* @return <CODE>true</CODE> if the compression succeeded, or
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* <CODE>false</CODE> if it did not.
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*/
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public boolean execute()
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{
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FileInputStream fis = null;
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GZIPOutputStream gzip = null;
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boolean inputStreamOpen = false;
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boolean outputStreamOpen = false;
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try
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{
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if(!originalFile.exists())
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{
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System.err.println("Source file does not exist:" + originalFile);
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return false;
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}
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fis = new FileInputStream(originalFile);
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inputStreamOpen = true;
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FileOutputStream fos = new FileOutputStream(newFile);
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gzip = new GZIPOutputStream(fos);
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outputStreamOpen = true;
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byte[] buf = new byte[8192];
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int n;
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while((n = fis.read(buf)) != -1)
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{
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gzip.write(buf, 0, n);
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}
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gzip.close();
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outputStreamOpen = false;
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fis.close();
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inputStreamOpen = false;
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if(deleteOriginal && !originalFile.delete())
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{
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System.err.println("Cannot delete original file:" + originalFile);
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return false;
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}
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return true;
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} catch(IOException ioe)
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{
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logger.traceException(ioe);
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if (inputStreamOpen)
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{
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try
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{
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fis.close();
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}
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catch (Exception fe)
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{
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logger.traceException(fe);
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// Cannot do much. Ignore.
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}
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}
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if (outputStreamOpen)
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{
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try
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{
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gzip.close();
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}
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catch (Exception ge)
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{
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logger.traceException(ge);
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// Cannot do much. Ignore.
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}
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}
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return false;
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}
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}
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}
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