weaver 2004/03/09 08:11:52
Added: components/cm/src/java/org/apache/jetspeed/components/util
NanoQuickAssembler.java
Log:
utility for quickly building components/containers from a script file
Revision Changes Path
1.1
jakarta-jetspeed-2/components/cm/src/java/org/apache/jetspeed/components/util/NanoQuickAssembler.java
Index: NanoQuickAssembler.java
===================================================================
/*
* Copyright 2000-2001,2004 The Apache Software Foundation.
*
* Licensed 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.jetspeed.components.util;
import java.io.InputStreamReader;
import java.io.Reader;
import org.nanocontainer.NanoContainer;
import org.picocontainer.MutablePicoContainer;
import org.picocontainer.PicoContainer;
import org.picocontainer.defaults.ObjectReference;
import org.picocontainer.defaults.SimpleReference;
/**
* <p>
* NanoQuickAssembler
* </p>
*
* Simple uitlity for use in multi-script assemblies.
*
* @author <a href="mailto:[EMAIL PROTECTED]">Scott T. Weaver </a>
* @version $ $
*
*/
public class NanoQuickAssembler
{
/**
*
* <p>
* assemble
* </p>
*
* Utility method for assembling a script-based
* containers on fly. Best used within aggregate scripts
* for easily merging other scripts into one, larger aggregate
* container.
*
* @param cl ClassLoader that will be used to assmble this container
* @param scriptName Script that will be used to assemble this container
* @param parent Parent PicoContiner for this container
* @param scope String defining the scope of this container
* @return MutablePicoContainer fully assmbled and start MutablePicoContainer
* @throws ClassNotFoundException
*/
public static MutablePicoContainer assemble(ClassLoader cl,
String scriptName, PicoContainer parent, String scope) throws
ClassNotFoundException
{
Reader scriptReader = new
InputStreamReader(cl.getResourceAsStream(scriptName));
ObjectReference parentRef = new SimpleReference();
ObjectReference containerRef = new SimpleReference();
NanoContainer nano = new NanoContainer(scriptReader, NanoContainer.GROOVY
,parent, cl);
nano.getContainerBuilder().buildContainer(containerRef, parentRef, scope);
return (MutablePicoContainer) containerRef.get();
}
/**
*
* <p>
* assemble
* </p>
*
* same as [EMAIL PROTECTED] assemble(ClassLoader, String, PicoContainer,
String)}
* accept it uses a default scope of "jetspeed".
*
* @param cl
* @param scriptName
* @param parent
* @return
* @throws ClassNotFoundException
*/
public static MutablePicoContainer assemble(ClassLoader cl,
String scriptName, PicoContainer parent) throws ClassNotFoundException
{
return assemble(cl, scriptName, parent, "jetspeed");
}
}
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