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Posted to cvs@cocoon.apache.org by cz...@apache.org on 2003/06/03 09:29:19 UTC
cvs commit: cocoon-2.1/src/deprecated/java/org/apache/cocoon/components/source/impl AvalonToCocoonSourceInvocationHandler.java
cziegeler 2003/06/03 00:29:19
Modified: . status.xml
src/java/org/apache/cocoon/environment
AbstractEnvironment.java
Added: src/deprecated/java/org/apache/cocoon/components/source/impl
AvalonToCocoonSourceInvocationHandler.java
Log:
Applying modified version of patch 11533
Revision Changes Path
1.48 +4 -0 cocoon-2.1/status.xml
Index: status.xml
===================================================================
RCS file: /home/cvs/cocoon-2.1/status.xml,v
retrieving revision 1.47
retrieving revision 1.48
diff -u -r1.47 -r1.48
--- status.xml 31 May 2003 00:34:35 -0000 1.47
+++ status.xml 3 Jun 2003 07:29:18 -0000 1.48
@@ -181,6 +181,10 @@
<changes>
<release version="@version@" date="@date@">
+ <action dev="CZ" type="fix" fixes-bug="11533">
+ The deprecated source implementations are now wrapped by proxies.
+ Modified patch from Jens Lorenz (jens.lorenz@interface-business.de)
+ </action>
<action dev="JH" type="fix" fixes-bug="15302">
For non-existant files XSPUtil.relativeFilename() now throws FileNotFoundException instead of NPE.
</action>
1.14 +20 -9 cocoon-2.1/src/java/org/apache/cocoon/environment/AbstractEnvironment.java
Index: AbstractEnvironment.java
===================================================================
RCS file: /home/cvs/cocoon-2.1/src/java/org/apache/cocoon/environment/AbstractEnvironment.java,v
retrieving revision 1.13
retrieving revision 1.14
diff -u -r1.13 -r1.14
--- AbstractEnvironment.java 16 May 2003 07:12:29 -0000 1.13
+++ AbstractEnvironment.java 3 Jun 2003 07:29:19 -0000 1.14
@@ -53,7 +53,7 @@
import java.io.File;
import java.io.IOException;
import java.io.OutputStream;
-import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
import java.net.MalformedURLException;
import java.util.Enumeration;
import java.util.HashMap;
@@ -122,7 +122,7 @@
protected OutputStream outputStream;
/** The AvalonToCocoonSourceWrapper (this is for the deprecated support) */
- static protected Constructor avalonToCocoonSourceWrapper;
+ static protected Method avalonToCocoonSourceWrapper;
/** Do we have our components ? */
protected boolean initializedComponents = false;
@@ -360,25 +360,35 @@
// get the wrapper class - we don't want to import the wrapper directly
// to avoid a direct dependency from the core to the deprecation package
+ Class clazz;
+ try {
+ clazz = ClassUtils.loadClass("org.apache.cocoon.components.source.impl.AvalonToCocoonSourceInvocationHandler");
+ } catch (Exception e) {
+ throw new ProcessingException("The deprecated resolve() method of the environment was called."
+ +"Please either update your code to use the new resolveURI() method or"
+ +" install the deprecation support.", e);
+ }
if ( null == avalonToCocoonSourceWrapper ) {
synchronized (this.getClass()) {
try {
- Class clazz = ClassUtils.loadClass("org.apache.cocoon.components.source.impl.AvalonToCocoonSource");
- avalonToCocoonSourceWrapper = clazz.getConstructor(new Class[] {ClassUtils.loadClass("org.apache.excalibur.source.Source"),
- ClassUtils.loadClass(SourceResolver.class.getName()),
- ClassUtils.loadClass(Environment.class.getName()),
- ClassUtils.loadClass(ComponentManager.class.getName())});
+ avalonToCocoonSourceWrapper = clazz.getDeclaredMethod("createProxy",
+ new Class[] {ClassUtils.loadClass("org.apache.excalibur.source.Source"),
+ ClassUtils.loadClass("org.apache.excalibur.source.SourceResolver"),
+ ClassUtils.loadClass(Environment.class.getName()),
+ ClassUtils.loadClass(ComponentManager.class.getName())});
} catch (Exception e) {
throw new ProcessingException("The deprecated resolve() method of the environment was called."
+"Please either update your code to use the new resolveURI() method or"
+" install the deprecation support.", e);
}
}
+
}
try {
org.apache.excalibur.source.Source source = this.resolveURI( systemId );
Source wrappedSource;
- wrappedSource = (Source)avalonToCocoonSourceWrapper.newInstance(new Object[] {source, this.sourceResolver, this, this.manager});
+ wrappedSource = (Source)avalonToCocoonSourceWrapper.invoke(clazz,
+ new Object[] {source, this.sourceResolver, this, this.manager});
return wrappedSource;
} catch (SourceException se) {
throw SourceUtil.handle(se);
@@ -560,5 +570,6 @@
}
this.initializedComponents = false;
}
+
}
1.1 cocoon-2.1/src/deprecated/java/org/apache/cocoon/components/source/impl/AvalonToCocoonSourceInvocationHandler.java
Index: AvalonToCocoonSourceInvocationHandler.java
===================================================================
/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 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
apache@apache.org.
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 <st...@apache.org>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.cocoon.components.source.impl;
import org.apache.avalon.framework.component.ComponentManager;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.components.source.SourceUtil;
import org.apache.cocoon.environment.Environment;
import org.apache.cocoon.environment.ModifiableSource;
import org.apache.excalibur.source.Source;
import org.apache.excalibur.source.SourceException;
import org.apache.excalibur.source.SourceResolver;
import org.xml.sax.ContentHandler;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
/**
* An <code>InvocationHandler</code> which acts as a proxy for excalibur
* <code>Source</code> objects to make them compatible with the cocoon
* <code>Source</code> interface.
* Much of the code was taken from {@link AvalonToCocoonSource}.
*
* @author Stefan Köhler
* @author <a href="mailto:cziegeler@apache.org">Carsten Ziegeler</a>
* @version CVS $Id: AvalonToCocoonSourceInvocationHandler.java,v 1.1 2003/06/03 07:29:19 cziegeler Exp $
*/
public class AvalonToCocoonSourceInvocationHandler
implements InvocationHandler {
/** The real source */
protected Source source;
/** The source resolver */
protected SourceResolver resolver;
/** The environment */
protected Environment environment;
/** The manager */
protected ComponentManager manager;
/**
* Constructor
*/
public AvalonToCocoonSourceInvocationHandler(Source source,
SourceResolver resolver,
Environment environment,
ComponentManager manager) {
this.source = source;
this.resolver = resolver;
this.environment = environment;
this.manager = manager;
}
/**
* Processes a method invocation on a proxy instance and returns the result.
* It invokes the corresponding method of the wrapped excalibur source.
*
* @param proxy the Cocoon source proxy instance that the method was invoked on
* @param method the Method instance corresponding to the interface method
* invoked on the proxy instance.
* @param args the arguments for the interface method
* @return the result of the proxy method
*/
public Object invoke( Object proxy, Method method, Object[] args )
throws Throwable {
try {
if (method.getName().equals("getInputStream")) {
return this.getInputStream();
} else if (method.getName().equals("getInputSource")) {
return this.getInputSource();
} else if (method.getName().equals("getSystemId")) {
return this.getSystemId();
} else if(method.getName().equals("recycle")) {
this.recycle();
return null;
} else if(method.getName().equals("toSAX")) {
this.toSAX((ContentHandler) args[0]);
return null;
} else{
return method.invoke(source, args);
}
}
catch ( InvocationTargetException e ){
throw e.getTargetException();
}
}
/**
* Return an <code>InputStream</code> object to read from the source.
*/
public InputStream getInputStream()
throws ProcessingException, IOException {
try {
return this.source.getInputStream();
} catch (SourceException e) {
throw SourceUtil.handle(e);
}
}
/**
* Return an <code>InputSource</code> object to read the XML
* content.
*
* @return an <code>InputSource</code> value
* @exception ProcessingException if an error occurs
* @exception IOException if an error occurs
*/
public InputSource getInputSource()
throws ProcessingException, IOException {
try {
InputSource newObject = new InputSource(this.source.getInputStream());
newObject.setSystemId(this.getSystemId());
return newObject;
} catch (SourceException se) {
throw SourceUtil.handle(se);
}
}
/**
* Return the unique identifer for this source
*/
public String getSystemId() {
return this.source.getURI();
}
public void recycle() {
this.resolver.release(this.source);
this.source = null;
this.environment = null;
}
public void refresh() {
this.source.refresh();
}
/**
* Stream content to a content handler or to an XMLConsumer.
*
* @throws ResourceNotFoundException if file not found or
* HTTP location does not exist.
* @throws SAXException if failed to parse source document.
*/
public void toSAX(ContentHandler handler)
throws SAXException {
try {
SourceUtil.parse(this.manager, this.source, handler);
} catch (ProcessingException pe) {
throw new SAXException("ProcessingException during streaming.", pe);
} catch (IOException ioe) {
throw new SAXException("IOException during streaming.", ioe);
}
}
/**
* Creates a dynamic proxy for an excalibur <code>Source</code> object to
* make it behave like a cocoon <code>Source</code>.
* @param source the source object to be wrapped
* @return a proxy object which implements the cocoon <code>Source</code>
* interface and all of the interfaces that the wrapped object
* implements
* @throws SourceException in case of an error
*/
public static org.apache.cocoon.environment.Source createProxy(Source source,
SourceResolver resolver,
Environment environment,
ComponentManager manager)
throws SourceException{
Class[] sourceInterfaces = source.getClass().getInterfaces();
Class[] proxyInterfaces = new Class[sourceInterfaces.length+2];
for(int i=0; i < sourceInterfaces.length; i++) {
proxyInterfaces[i] = sourceInterfaces[i];
}
proxyInterfaces[sourceInterfaces.length] = org.apache.cocoon.environment.Source.class;
proxyInterfaces[sourceInterfaces.length+1] = ModifiableSource.class;
InvocationHandler invocationHandler = new AvalonToCocoonSourceInvocationHandler(
source,
resolver,
environment,
manager
);
try {
org.apache.cocoon.environment.Source proxy;
proxy = (org.apache.cocoon.environment.Source)Proxy.newProxyInstance(source.getClass().getClassLoader(),
proxyInterfaces, invocationHandler);
return proxy;
} catch(Exception e){
throw new SourceException("Error creating proxy object", e);
}
}
}