/*
* Copyright 2010 JBoss Inc
*
* 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.drools.eclipse.debug;
import java.util.ArrayList;
import java.util.List;
import org.drools.eclipse.DroolsEclipsePlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.ILogicalStructureTypeDelegate;
import org.eclipse.debug.core.model.IValue;
import org.eclipse.debug.core.model.IVariable;
import org.eclipse.jdt.debug.core.IJavaArray;
import org.eclipse.jdt.debug.core.IJavaClassType;
import org.eclipse.jdt.debug.core.IJavaInterfaceType;
import org.eclipse.jdt.debug.core.IJavaObject;
import org.eclipse.jdt.debug.core.IJavaType;
import org.eclipse.jdt.debug.core.IJavaValue;
import org.eclipse.jdt.debug.core.IJavaVariable;
/**
* The logical structures of Agenda.
*/
public class AgendaLogicalStructureDelegate implements ILogicalStructureTypeDelegate {
public boolean providesLogicalStructure(IValue value) {
if (!(value instanceof IJavaObject)) {
return false;
}
IJavaObject javaValue= (IJavaObject) value;
try {
IJavaType type= javaValue.getJavaType();
if (!(type instanceof IJavaClassType)) {
return false;
}
IJavaClassType classType = (IJavaClassType) type;
IJavaInterfaceType[] interfaceTypes = classType.getAllInterfaces();
for ( int i = 0; i < interfaceTypes.length; i++ ) {
if ("org.drools.spi.Activation".equals(interfaceTypes[i].getName())) {
return true;
}
}
return false;
} catch (DebugException e) {
DroolsEclipsePlugin.log(e);
return false;
}
}
public IValue getLogicalStructure(IValue value) throws CoreException {
if (!(value instanceof IJavaObject)) {
return null;
}
IJavaObject javaValue = (IJavaObject) value;
if (!providesLogicalStructure(value)) {
return null;
}
IJavaArray ruleParameters = (IJavaArray) DebugUtil.getValueByExpression("return getRule().getDeclarations();", value);
List variables = new ArrayList();
variables.add(new VariableWrapper("ruleName", (IJavaValue) DebugUtil.getValueByExpression("return getRule().getName();", value)));
IJavaValue[] javaValues = ruleParameters.getValues();
for ( int j = 0; j < javaValues.length; j++ ) {
IJavaValue declaration = javaValues[j];
IVariable[] vars = declaration.getVariables();
for ( int k = 0; k < vars.length; k++ ) {
IVariable declarationVar = vars[k];
if ("identifier".equals(declarationVar.getName())) {
String paramName = declarationVar.getValue().getValueString();
IJavaValue varValue = (IJavaValue) DebugUtil.getValueByExpression("return getRule().getDeclaration(\"" + paramName + "\").getValue(((org.drools.common.InternalFactHandle) getTuple().get(getRule().getDeclaration(\"" + paramName + "\"))).getObject());", value);
if (varValue != null) {
variables.add(new VariableWrapper(paramName, varValue));
}
break;
}
}
}
return new ObjectWrapper(javaValue, (IJavaVariable[]) variables.toArray(new IJavaVariable[variables.size()]));
}
}