/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.tools.ant.taskdefs;
import java.io.File;
import java.io.IOException;
import org.apache.tools.ant.BuildException;
import org.apache.tools.ant.Project;
import org.apache.tools.ant.types.ZipFileSet;
import org.apache.tools.ant.util.FileUtils;
import org.apache.tools.zip.ZipOutputStream;
/**
* <p>An extension of <jar> to create a WAR archive.
* Contains special treatment for files that should end up in the
* <code>WEB-INF/lib</code>, <code>WEB-INF/classes</code> or
* <code>WEB-INF</code> directories of the Web Application Archive.</p>
*
* <p>(The War task is a shortcut for specifying the particular layout of a WAR file.
* The same thing can be accomplished by using the <i>prefix</i> and <i>fullpath</i>
* attributes of zipfilesets in a Zip or Jar task.)</p>
*
* <p>The extended zipfileset element from the zip task
* (with attributes <i>prefix</i>, <i>fullpath</i>, and <i>src</i>)
* is available in the War task.</p>
*
* @since Ant 1.2
*
* @ant.task category="packaging"
* @see Jar
*/
public class War extends Jar {
private static final FileUtils FILE_UTILS = FileUtils.getFileUtils();
/** path to web.xml file */
private static final String XML_DESCRIPTOR_PATH = "WEB-INF/web.xml";
/**
* our web.xml deployment descriptor
*/
private File deploymentDescriptor;
/**
* flag set if the descriptor is added
*/
private boolean needxmlfile = true;
private File addedWebXmlFile;
/** Constructor for the War Task. */
public War() {
super();
archiveType = "war";
emptyBehavior = "create";
}
/**
* <i>Deprecated</i> name of the file to create
* -use <tt>destfile</tt> instead.
* @param warFile the destination file
* @deprecated since 1.5.x.
* Use setDestFile(File) instead
* @ant.attribute ignore="true"
*/
@Deprecated
public void setWarfile(File warFile) {
setDestFile(warFile);
}
/**
* set the deployment descriptor to use (WEB-INF/web.xml);
* required unless <tt>update=true</tt>
* @param descr the deployment descriptor file
*/
public void setWebxml(File descr) {
deploymentDescriptor = descr;
if (!deploymentDescriptor.exists()) {
throw new BuildException("Deployment descriptor: does not exist.",
deploymentDescriptor);
}
// Create a ZipFileSet for this file, and pass it up.
ZipFileSet fs = new ZipFileSet();
fs.setFile(deploymentDescriptor);
fs.setFullpath(XML_DESCRIPTOR_PATH);
super.addFileset(fs);
}
/**
* Set the policy on the web.xml file, that is, whether or not it is needed
* @param needxmlfile whether a web.xml file is needed. Default: true
*/
public void setNeedxmlfile(boolean needxmlfile) {
this.needxmlfile = needxmlfile;
}
/**
* add files under WEB-INF/lib/
* @param fs the zip file set to add
*/
public void addLib(ZipFileSet fs) {
// We just set the prefix for this fileset, and pass it up.
fs.setPrefix("WEB-INF/lib/");
super.addFileset(fs);
}
/**
* add files under WEB-INF/classes
* @param fs the zip file set to add
*/
public void addClasses(ZipFileSet fs) {
// We just set the prefix for this fileset, and pass it up.
fs.setPrefix("WEB-INF/classes/");
super.addFileset(fs);
}
/**
* files to add under WEB-INF;
* @param fs the zip file set to add
*/
public void addWebinf(ZipFileSet fs) {
// We just set the prefix for this fileset, and pass it up.
fs.setPrefix("WEB-INF/");
super.addFileset(fs);
}
/**
* override of parent; validates configuration
* before initializing the output stream.
* @param zOut the zip output stream
* @throws IOException on output error
* @throws BuildException if invalid configuration
*/
@Override
protected void initZipOutputStream(ZipOutputStream zOut)
throws IOException, BuildException {
super.initZipOutputStream(zOut);
}
/**
* Overridden from Zip class to deal with web.xml
*
* Here are cases that can arise
* -not a web.xml file : add
* -first web.xml : add, remember we added it
* -same web.xml again: skip
* -alternate web.xml : warn and skip
*
* @param file the file to add to the archive
* @param zOut the stream to write to
* @param vPath the name this entry shall have in the archive
* @param mode the Unix permissions to set.
* @throws IOException on output error
*/
@Override
protected void zipFile(File file, ZipOutputStream zOut, String vPath,
int mode)
throws IOException {
// If the file being added is WEB-INF/web.xml, we warn if it's
// not the one specified in the "webxml" attribute - or if
// it's being added twice, meaning the same file is specified
// by the "webxml" attribute and in a <fileset> element.
//by default, we add the file.
boolean addFile = true;
if (XML_DESCRIPTOR_PATH.equalsIgnoreCase(vPath)) {
//a web.xml file was found. See if it is a duplicate or not
if (addedWebXmlFile != null) {
//a second web.xml file, so skip it
addFile = false;
//check to see if we warn or not
if (!FILE_UTILS.fileNameEquals(addedWebXmlFile, file)) {
logWhenWriting("Warning: selected " + archiveType
+ " files include a second " + XML_DESCRIPTOR_PATH
+ " which will be ignored.\nThe duplicate entry is at "
+ file + "\nThe file that will be used is "
+ addedWebXmlFile, Project.MSG_WARN);
}
} else {
//no added file, yet
addedWebXmlFile = file;
//there is no web.xml file, so add it
addFile = true;
//and remember that we did
deploymentDescriptor = file;
}
}
if (addFile) {
super.zipFile(file, zOut, vPath, mode);
}
}
/**
* Make sure we don't think we already have a web.xml next time this task
* gets executed.
*/
@Override
protected void cleanUp() {
if (addedWebXmlFile == null
&& deploymentDescriptor == null
&& needxmlfile
&& !isInUpdateMode()
&& hasUpdatedFile()) {
throw new BuildException(
"No WEB-INF/web.xml file was added.\nIf this is your intent, set needxmlfile='false' ");
}
addedWebXmlFile = null;
super.cleanUp();
}
}