/*
* ModeShape (http://www.modeshape.org)
*
* 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.modeshape.sequencer.classfile;
import java.io.IOException;
import java.io.InputStream;
import javax.jcr.Binary;
import javax.jcr.NamespaceRegistry;
import javax.jcr.Node;
import javax.jcr.Property;
import javax.jcr.RepositoryException;
import org.modeshape.common.annotation.ThreadSafe;
import org.modeshape.common.util.CheckArg;
import org.modeshape.jcr.api.nodetype.NodeTypeManager;
import org.modeshape.jcr.api.sequencer.Sequencer;
import org.modeshape.sequencer.classfile.metadata.ClassFileMetadataReader;
import org.modeshape.sequencer.classfile.metadata.ClassMetadata;
@ThreadSafe
public class ClassFileSequencer extends Sequencer {
private static final ClassFileRecorder DEFAULT_CLASS_FILE_RECORDER = new DefaultClassFileRecorder();
private ClassFileRecorder classFileRecorder = DEFAULT_CLASS_FILE_RECORDER;
@Override
public boolean execute( Property inputProperty,
Node outputNode,
Context context ) throws Exception {
Binary binaryValue = inputProperty.getBinary();
CheckArg.isNotNull(binaryValue, "binary");
try (InputStream stream = binaryValue.getStream()) {
ClassMetadata classMetadata = ClassFileMetadataReader.instance(stream);
classFileRecorder.recordClass(context, outputNode, classMetadata);
return true;
}
}
@Override
public void initialize( NamespaceRegistry registry,
NodeTypeManager nodeTypeManager ) throws RepositoryException, IOException {
registerNodeTypes("sequencer-classfile.cnd", nodeTypeManager, true);
}
/**
* Sets the custom {@link ClassFileRecorder} by specifying a class name. This method attempts to instantiate an instance of
* the custom {@link ClassFileRecorder} class prior to ensure that the new value represents a valid implementation.
*
* @param classFileRecorderClassName the fully-qualified class name of the new custom class file recorder implementation; null
* indicates that {@link DefaultClassFileRecorder the default class file recorder} should be used.
* @throws ClassNotFoundException if the the class for the {@code ClassFileRecorder} implementation cannot be located
* @throws IllegalAccessException if the row factory class or its nullary constructor is not accessible.
* @throws InstantiationException if the row factory represents an abstract class, an interface, an array class, a primitive
* type, or void; or if the class has no nullary constructor; or if the instantiation fails for some other reason.
* @throws ClassCastException if the instantiated class file recorder does not implement the {@link ClassFileRecorder}
* interface
*/
public void setClassFileRecorderClassName( String classFileRecorderClassName )
throws ClassNotFoundException, IllegalAccessException, InstantiationException {
if (classFileRecorderClassName == null) {
this.classFileRecorder = DEFAULT_CLASS_FILE_RECORDER;
return;
}
Class<?> classFileRecorderClass = Class.forName(classFileRecorderClassName);
this.classFileRecorder = (ClassFileRecorder)classFileRecorderClass.newInstance();
}
/**
* Sets a custom {@link ClassFileRecorder}. If {@code classFileRecorder} is null, then the {@link DefaultClassFileRecorder
* default class file recorder} will be used.
*
* @param classFileRecorder the new custom class file recorder implementation; null indicates that
* {@link DefaultClassFileRecorder the default class file recorder} should be used.
*/
public void setClassFileRecorder( ClassFileRecorder classFileRecorder ) {
this.classFileRecorder = classFileRecorder == null ? DEFAULT_CLASS_FILE_RECORDER : classFileRecorder;
}
}