/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.ivyde.eclipse.handlers;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import org.apache.ivyde.eclipse.cpcontainer.IvyClasspathContainer;
import org.apache.ivyde.eclipse.cpcontainer.IvyClasspathUtil;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jdt.core.IJavaProject;
import org.eclipse.jdt.internal.ui.packageview.ClassPathContainer;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkingSet;
import org.eclipse.ui.handlers.HandlerUtil;
public abstract class AbstractIvyDEHandler extends AbstractHandler {
public Object execute(ExecutionEvent event) throws ExecutionException {
ISelection selection = HandlerUtil.getCurrentSelection(event);
if (!(selection instanceof IStructuredSelection)) {
return null;
}
// Map<IProject, Set<IvyClasspathContainer>>
Map projects = getProjectAndContainers((IStructuredSelection) selection);
if (projects.size() > 0) {
handleProjects(projects);
}
return null;
}
public static Map/* <IProject, Set<IvyClasspathContainer>> */getProjectAndContainers(
IStructuredSelection selection) {
Map/* <IProject, Set<IvyClasspathContainer>> */projects = new HashMap();
Iterator it = selection.iterator();
while (it.hasNext()) {
Object element = it.next();
if (element instanceof IWorkingSet) {
IAdaptable[] elements = ((IWorkingSet) element).getElements();
for (int i = 0; i < elements.length; i++) {
addElement(projects, elements[i]);
}
} else if (element instanceof ClassPathContainer) {
IvyClasspathContainer ivycp = IvyClasspathUtil
.jdt2IvyCPC(((ClassPathContainer) element));
IJavaProject javaProject = ivycp.getConf().getJavaProject();
if (javaProject != null) {
Set/* <IvyClasspathContainer> */cplist = (Set) projects.get(javaProject
.getProject());
if (cplist == null) {
cplist = new HashSet();
projects.put(javaProject.getProject(), cplist);
}
cplist.add(ivycp);
}
} else {
addElement(projects, element);
}
}
return projects;
}
private static void addElement(Map/* <IProject, Set<IvyClasspathContainer>> */projects,
Object adaptableProject) {
IProject project = null;
if (adaptableProject instanceof IProject) {
project = (IProject) adaptableProject;
} else if (adaptableProject instanceof IAdaptable) {
project = (IProject) ((IAdaptable) adaptableProject).getAdapter(IProject.class);
}
if (project != null) {
// check that there is an IvyDE container
List containers = IvyClasspathUtil.getIvyClasspathContainers(project);
if (!containers.isEmpty()) {
projects.put(project, new HashSet(containers));
}
}
}
protected void handleProjects(Map projects) {
Iterator it = projects.entrySet().iterator();
while (it.hasNext()) {
Entry entry = (Entry) it.next();
Iterator itContainers = ((Set) entry.getValue()).iterator();
while (itContainers.hasNext()) {
handleContainer((IProject) entry.getKey(),
(IvyClasspathContainer) itContainers.next());
}
}
}
protected void handleContainer(IProject project, IvyClasspathContainer cp) {
throw new UnsupportedOperationException();
}
}