nicolaken 2002/12/18 15:42:26
Added: src/blocks/php/java/org/apache/cocoon/generation
PhpGenerator.java
Removed: src/java/org/apache/cocoon/generation php.xmap
PhpGenerator.java
Log:
Php block.
Revision Changes Path
1.1
xml-cocoon2/src/blocks/php/java/org/apache/cocoon/generation/PhpGenerator.java
Index: PhpGenerator.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.generation;
import org.apache.avalon.excalibur.xml.Parser;
import org.apache.avalon.framework.CascadingRuntimeException;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.environment.http.HttpEnvironment;
import org.apache.excalibur.source.Source;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PipedInputStream;
import java.io.PipedOutputStream;
import java.util.Enumeration;
/**
* Allows PHP to be used as a generator. Builds upon the PHP servlet
* functionallity - overrides the output method in order to pipe the
* results into SAX events.
*
* @author <a href="mailto:[EMAIL PROTECTED]";>Sam Ruby</a>
* @version CVS $Id: PhpGenerator.java,v 1.1 2002/12/18 23:42:26 nicolaken Exp $
*/
public class PhpGenerator extends ServletGenerator {
/**
* Stub implementation of Servlet Config
*/
class config implements ServletConfig {
ServletContext c;
public config(ServletContext c) {this.c = c; }
public String getServletName() { return "PhpGenerator"; }
public Enumeration getInitParameterNames()
{ return c.getInitParameterNames(); }
public ServletContext getServletContext() { return c; }
public String getInitParameter(String name) { return null; }
}
/**
* Subclass the PHP servlet implementation, overriding the method
* that produces the output.
*/
public class PhpServlet extends net.php.servlet implements Runnable {
String input;
OutputStream output;
HttpServletRequest request;
HttpServletResponse response;
ServletException exception = null;
public void setInput(String input) {
this.input = input;
}
public void setOutput(OutputStream output) {
this.output = output;
}
public void setRequest(HttpServletRequest request) {
this.request = request;
}
public void setResponse(HttpServletResponse response) {
this.response = response;
}
public void write(String data) {
try {
output.write(data.getBytes());
} catch (IOException e) {
PhpGenerator.this.getLogger().debug("PhpGenerator.write()", e);
throw new CascadingRuntimeException("PhpGenerator.write()", e);
}
}
/******************************************************************/
/* runnable interface */
/******************************************************************/
public void run() {
try {
service(request, response, input);
} catch (ServletException e) {
PhpGenerator.this.getLogger().error("PhpGenerator.run()", e);
this.exception = e;
}
try {
output.close();
} catch (IOException e) {
PhpGenerator.this.getLogger().error("PhpGenerator.run():SHOULD NEVER
HAPPEN", e);
// should never happen
}
}
}
/**
* Generate XML data from PHP.
*/
public void generate() throws IOException, SAXException, ProcessingException {
// ensure that we are running in a servlet environment
HttpServletResponse httpResponse =
(HttpServletResponse)this.objectModel.get(HttpEnvironment.HTTP_RESPONSE_OBJECT);
HttpServletRequest httpRequest =
(HttpServletRequest)this.objectModel.get(HttpEnvironment.HTTP_REQUEST_OBJECT);
if (httpResponse == null || httpRequest == null) {
throw new ProcessingException("HttpServletRequest or HttpServletResponse
object not available");
}
// ensure that we are serving a file...
Source inputSource = null;
Parser parser = null;
try {
inputSource = this.resolver.resolveURI(this.source);
String systemId = inputSource.getSystemId();
if (!systemId.startsWith("file:/"))
throw new IOException("protocol not supported: " + systemId);
// construct both ends of the pipe
PipedInputStream input = new PipedInputStream();
// start PHP producing results into the pipe
PhpServlet php = new PhpServlet();
php.init(new
config((ServletContext)this.objectModel.get(HttpEnvironment.HTTP_SERVLET_CONTEXT)));
php.setInput(systemId.substring(6));
php.setOutput(new PipedOutputStream(input));
php.setRequest(httpRequest);
php.setResponse(httpResponse);
new Thread(php).start();
// pipe the results into the parser
parser = (Parser)this.manager.lookup(Parser.ROLE);
parser.parse(new InputSource(input), this.xmlConsumer);
// clean up
php.destroy();
} catch (IOException e) {
throw e;
} catch (Exception e) {
throw new ProcessingException(e.toString(), e);
} finally {
this.resolver.release( inputSource );
this.manager.release(parser);
}
}
}
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