/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying * 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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* Portions Copyright 2006 Sun Microsystems, Inc.
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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.ZipEntry;
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import java.util.zip.ZipOutputStream;
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import static org.opends.server.loggers.Debug.*;
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/**
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* This class implements a post rotation action that compresses
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* the file using ZIP compression.
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*/
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public class ZIPAction implements PostRotationAction
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{
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/**
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* The fully-qualified name of this class for debugging purposes.
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*/
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private static final String CLASS_NAME =
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"org.opends.server.loggers.ZIPAction";
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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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public ZIPAction(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 was successful, or
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* <CODE>false</CODE> if it was 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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ZipOutputStream zip = 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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zip = new ZipOutputStream(fos);
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outputStreamOpen = true;
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ZipEntry zipEntry = new ZipEntry(originalFile.getName());
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zip.putNextEntry(zipEntry);
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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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zip.write(buf, 0, n);
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}
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zip.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)
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{
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if(!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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}
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return true;
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} catch(IOException ioe)
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{
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assert debugException(CLASS_NAME, "execute", 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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} catch(Exception fe)
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{
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assert debugException(CLASS_NAME, "execute", 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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zip.close();
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} catch(Exception ze)
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{
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assert debugException(CLASS_NAME, "execute", ze);
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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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