/*
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000, 2001, 2002, 2003 Jesse Stockall. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
*/
package org.moxie.ant;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
/**
* Represents a zip file in the classpath.
* <p>
*
* When a Zip file is located in the classpath, a ZipResolver is instantiated
* that encapsulates the path and performs searches in that zip. This class is
* used primarily to allow easy association of the <i>zip file</i> with the jar
* entry's attributes.
* <p>
*
* When a file is resolved from a JarEntrySpec, Attributes are added for the zip
* file and last modification time.
* <p>
*
*
*
* @author Original Code: <a href="mailto:jake@riggshill.com">John W. Kohler
* </a>
* @author Jesse Stockall
* @version $Revision: 1.4 $ $Date: 2003/02/23 10:06:10 $
*/
class ZipResolver extends PathResolver {
private File file;
private ZipFile zip;
/**
* Constructor for the ZipResolver object
*
* @param f
* Description of the Parameter
* @param log
* Description of the Parameter
* @throws IOException
* Oops!
*/
ZipResolver(File f, Logger log) throws IOException {
super(false, log);
file = f;
zip = new ZipFile(file);
log.verbose("Resolver: " + file);
}
/**
* Closes the zip file to avoid locking files
*
* @throws IOException
* Oops!
*/
public void close() throws IOException {
if (zip != null) {
zip.close();
}
}
/**
* Description of the Method
*
* @param spec
* Description of the Parameter
* @return Description of the Return Value
* @throws IOException
* Oops!
*/
public InputStream resolve(JarEntrySpec spec) throws IOException {
InputStream is = null;
ZipEntry ze = zip.getEntry(spec.getJarName());
if (ze != null) {
is = zip.getInputStream(ze);
log.debug(spec.getJarName() + "->" + file);
}
return is;
}
/**
* Description of the Method
*
* @param fname
* Description of the Parameter
* @return Description of the Return Value
* @throws IOException
* Oops!
*/
public InputStream resolve(String fname) throws IOException {
InputStream is = null;
ZipEntry ze = zip.getEntry(fname);
if (ze != null) {
is = zip.getInputStream(ze);
log.debug(fname + "->" + file);
}
return is;
}
@Override
public String toString() {
return "Resolver " + (isExcluded() ? "EXCLUDED" : "") + " (" + file.getPath() + ")";
}
}