stefano 02/02/20 12:58:21
Added: src/scratchpad/src/org/apache/cocoon/reading
DirectoryZipArchiver.java
Log:
added a directory archiver which is able to create a zip file of the content
of a directory on the file system.
Revision Changes Path
1.1
xml-cocoon2/src/scratchpad/src/org/apache/cocoon/reading/DirectoryZipArchiver.java
Index: DirectoryZipArchiver.java
===================================================================
/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2002 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, 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 acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" 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
[EMAIL PROTECTED]
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
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 (INCLU-
DING, 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.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
Stefano Mazzocchi <[EMAIL PROTECTED]>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.cocoon.reading;
import java.io.InputStream;
import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.File;
import java.io.OutputStream;
import java.io.IOException;
import java.net.URL;
import java.util.Map;
import java.util.Date;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import org.apache.avalon.framework.component.Component;
import org.apache.avalon.framework.component.ComponentException;
import org.apache.avalon.framework.component.ComponentManager;
import org.apache.avalon.framework.component.Composable;
import org.apache.avalon.framework.parameters.Parameters;
import org.apache.cocoon.Constants;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.ResourceNotFoundException;
import org.apache.cocoon.Roles;
import org.apache.cocoon.caching.CacheValidity;
import org.apache.cocoon.caching.Cacheable;
import org.apache.cocoon.caching.TimeStampCacheValidity;
import org.apache.cocoon.util.HashUtil;
import org.apache.cocoon.environment.Context;
import org.apache.cocoon.environment.Request;
import org.apache.cocoon.environment.Response;
import org.apache.cocoon.environment.Source;
import org.apache.cocoon.environment.SourceResolver;
import org.xml.sax.SAXException;
/**
* The <code>DirectoryZipArchiver</code> component creates a compressed zip
* archive of the files contained in the directory passed with 'src'.
*
* NOTE (SM): no content-length information is passed to the user since we
* can't estimate it before actually performing the compression.
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Stefano Mazzocchi</a>
* @version CVS $Revision: 1.1 $ $Date: 2002/02/20 20:58:20 $
*/
public class DirectoryZipArchiver extends AbstractReader {
private Source inputSource;
private Response response;
private Request request;
private File directory;
private boolean setContentLength;
public void setup(SourceResolver resolver, Map objectModel, String src,
Parameters par)
throws ProcessingException, SAXException, IOException {
super.setup(resolver, objectModel, src, par);
this.request = (Request) objectModel.get(Constants.REQUEST_OBJECT);
this.response = (Response) objectModel.get(Constants.RESPONSE_OBJECT);
this.inputSource = this.resolver.resolve(super.source);
String systemId = inputSource.getSystemId();
if (!systemId.startsWith("file:")) {
throw new ResourceNotFoundException(systemId + " does not denote a
directory");
}
// This relies on systemId being of the form "file://..."
this.directory = new File(new URL(systemId).getFile());
if (!directory.isDirectory()) {
throw new ResourceNotFoundException(directory + " is not a directory.");
}
}
/**
* Generates the requested resource.
*/
public void generate() throws IOException, ProcessingException {
File[] files = this.directory.listFiles();
ZipOutputStream zip = new ZipOutputStream(out);
zip.setLevel(0); //FIXME (sm) this should be a configurable parameter
for (int i = 0; i < files.length; i++) {
if (!files[i].isDirectory()) {
ZipEntry entry = new ZipEntry(files[i].getName());
zip.putNextEntry(entry);
read(files[i],zip);
zip.closeEntry();
}
}
zip.finish();
zip.flush();
}
/**
* Returns the mime-type of the resource in process.
*/
public String getMimeType() {
return "application/zip";
}
/**
* Reads the given file in the given output stream.
*/
protected void read(File file, OutputStream out) throws IOException {
InputStream in = new FileInputStream(file);
byte[] buffer = new byte[8192];
int length = -1;
while ((length = in.read(buffer)) > -1) {
out.write(buffer, 0, length);
}
in.close();
}
}
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