/*
* 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.IValue;
import org.eclipse.debug.core.model.IVariable;
import org.eclipse.jdt.debug.core.IJavaArray;
import org.eclipse.jdt.debug.core.IJavaValue;
import org.eclipse.jdt.debug.core.IJavaVariable;
import org.eclipse.jdt.launching.IJavaLaunchConfigurationConstants;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.viewers.IContentProvider;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ui.IViewPart;
import org.eclipse.ui.PartInitException;
/**
* The Process instances view.
*/
public class ProcessInstancesView extends DroolsDebugEventHandlerView {
public ProcessInstancesView() {
setAction(DOUBLE_CLICK_ACTION, new DoubleClickAction());
}
protected IContentProvider createContentProvider() {
ProcessInstancesViewContentProvider contentProvider = new ProcessInstancesViewContentProvider(this);
return contentProvider;
}
private class DoubleClickAction extends Action {
public void run() {
IViewPart view = getSite().getPage().findView("org.drools.eclipse.debug.ProcessInstanceViewer");
if (view == null) {
try {
view = getSite().getPage().showView("org.drools.eclipse.debug.ProcessInstanceViewer");
} catch (PartInitException e) {
DroolsEclipsePlugin.log(e);
}
}
if (view != null) {
ISelection selection = getViewer().getSelection();
if (selection instanceof StructuredSelection) {
Object selected = ((StructuredSelection) selection).getFirstElement();
if (selected instanceof IJavaVariable) {
try {
openProcessInstance(((IJavaVariable) selected).getValue(), view);
} catch (DebugException e) {
DroolsEclipsePlugin.log(e);
}
}
}
}
}
private void openProcessInstance(IValue processInstance, IViewPart view) throws DebugException {
String id = null;
String processId = null;
IVariable[] vars = processInstance.getVariables();
for ( int j = 0; j < vars.length; j++ ) {
IVariable var = vars[j];
if ("id".equals(var.getName())) {
id = ((IJavaValue)var.getValue()).getValueString();
} else if ("process".equals(var.getName())) {
IJavaValue process = (IJavaValue) var.getValue();
IVariable[] vars2 = process.getVariables();
for ( int k = 0; k < vars2.length; k++ ) {
IVariable var2 = vars2[k];
if ("id".equals(var2.getName())) {
processId = ((IJavaValue) var2.getValue()).getValueString();
break;
}
}
}
}
List<String> nodeIds = new ArrayList<String>();
IJavaArray nodeInstances = (IJavaArray) DebugUtil.getValueByExpression("return getNodeInstances().toArray();", processInstance);
IJavaValue[] javaVals = nodeInstances.getValues();
for ( int i = 0; i < javaVals.length; i++ ) {
IJavaValue nodeInstance = javaVals[i];
String nodeId = null;
vars = nodeInstance.getVariables();
for ( int j = 0; j < vars.length; j++ ) {
IVariable var = vars[j];
if ("nodeId".equals(var.getName())) {
nodeId = ((IJavaValue) var.getValue()).getValueString();
break;
}
}
nodeIds.add(nodeId);
}
String projectName = null;
try {
projectName = processInstance.getLaunch().getLaunchConfiguration().getAttribute(
IJavaLaunchConfigurationConstants.ATTR_PROJECT_NAME, (String) null);
} catch (CoreException e) {
DroolsEclipsePlugin.log(e);
}
((ProcessInstanceViewer) view).showProcessInstance(id, processId, nodeIds, projectName);
}
}
}