/*
* 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.debug.core.DebugException;
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.IJavaObject;
import org.eclipse.jdt.debug.core.IJavaValue;
/**
* The Application Data View content provider.
*/
public class ApplicationDataViewContentProvider extends DroolsDebugViewContentProvider {
private DroolsDebugEventHandlerView view;
public ApplicationDataViewContentProvider(DroolsDebugEventHandlerView view) {
this.view = view;
}
protected String getEmptyString() {
return "The selected working memory has no globals defined.";
}
public Object[] getChildren(Object obj) {
try {
IVariable[] variables = null;
if (obj != null && obj instanceof IJavaObject
&& ("org.drools.core.impl.StatefulKnowledgeSessionImpl".equals(
((IJavaObject) obj).getReferenceTypeName()) ||
"org.drools.core.common.AbstractWorkingMemory".equals(
((IJavaObject) obj).getReferenceTypeName()) ||
"org.drools.core.reteoo.ReteooStatefulSession".equals(
((IJavaObject) obj).getReferenceTypeName()) ||
// for backwards compatibility
"org.drools.reteoo.ReteooStatefulSession".equals(
((IJavaObject) obj).getReferenceTypeName()))) {
variables = getApplicationDataElements((IJavaObject) obj);
} else if (obj instanceof IVariable) {
if (view.isShowLogicalStructure()) {
IValue value = getLogicalValue(((IVariable) obj).getValue(), new ArrayList<String>());
variables = value.getVariables();
}
if (variables == null) {
variables = ((IVariable) obj).getValue().getVariables();
}
}
if (variables == null) {
return new Object[0];
} else {
cache(obj, variables);
return variables;
}
} catch (DebugException e) {
DroolsEclipsePlugin.log(e);
return new Object[0];
}
}
private IVariable[] getApplicationDataElements(IJavaObject stackObj) throws DebugException {
IValue objects = null;
try {
objects = DebugUtil.getValueByExpression("return ((org.drools.core.base.MapGlobalResolver) getGlobalResolver()).getGlobals();", stackObj);
} catch (RuntimeException e) {
// backwards compatibility
objects = DebugUtil.getValueByExpression("return ((org.drools.base.MapGlobalResolver) getGlobalResolver()).getGlobals();", stackObj);
}
if (objects instanceof IJavaArray) {
IJavaArray array = (IJavaArray) objects;
List<VariableWrapper> result = new ArrayList<VariableWrapper>();
IJavaValue[] javaVals = array.getValues();
for ( int i = 0; i < javaVals.length; i++ ) {
IJavaValue mapEntry = javaVals[i];
String key = null;
IJavaValue value = null;
IVariable[] vars = mapEntry.getVariables();
for ( int j = 0; j < vars.length; j++ ) {
IVariable var = vars[j];
if ("key".equals(var.getName())) {
key = var.getValue().getValueString();
} else if ("value".equals(var.getName())) {
value = (IJavaValue) var.getValue();
}
}
result.add(new VariableWrapper(key, value));
}
return result.toArray(new IVariable[result.size()]);
}
return null;
}
}