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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/org/documents/epl-v10.php
*
* 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 com.android.ide.eclipse.adt;
import com.android.ide.eclipse.adt.internal.launch.AndroidLaunchController;
import com.android.ide.eclipse.adt.internal.project.ProjectHelper;
import com.android.ide.eclipse.adt.internal.resources.manager.GlobalProjectMonitor;
import com.android.ide.eclipse.adt.internal.resources.manager.GlobalProjectMonitor.IProjectListener;
import com.android.ide.eclipse.ddms.IDebuggerConnector;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IPath;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
/**
* Implementation of the com.android.ide.ddms.debuggerConnector extension point.
*/
public class DebuggerConnector implements IDebuggerConnector {
private WorkspaceAppCache mWorkspaceAppCache;
public DebuggerConnector() {
mWorkspaceAppCache = new WorkspaceAppCache();
GlobalProjectMonitor.getMonitor().addProjectListener(mWorkspaceAppCache);
}
@Override
public boolean connectDebugger(String appName, int appPort, int selectedPort) {
// search for an android project matching the process name
IProject project = ProjectHelper.findAndroidProjectByAppName(appName);
if (project != null) {
AndroidLaunchController.debugRunningApp(project, appPort);
return true;
}
return false;
}
/** {@inheritDoc} */
@Override
public boolean isWorkspaceApp(String appName) {
return mWorkspaceAppCache.isWorkspaceApp(appName);
}
/**
* A cache of Android application name to workspace project name mappings.
* Users can query whether an application is present in the workspace using
* {@link #isWorkspaceApp(String)}. The cache listens to workspace changes
* (project open/close/delete etc), and keeps its internal mappings up-to-date.<br>
* This class is designed with the following assumptions:
* <ul>
* <li> There are a significant number of calls to {@link #isWorkspaceApp(String)}, with
* a large number of possible application names as arguments. </li>
* <li> The number of projects actually present in the workspace, and the
* number of user initiated project changes (project open/close/delete/rename) are both
* relatively small. </li>
* </ul>
*/
static class WorkspaceAppCache implements IProjectListener {
/** Apps known to be not in the workspace. */
private Set<String> mAppsNotInWorkspace;
/** Mapping of application name to project name for apps present in the workspace. */
private Map<String, String> mAppsInWorkspace;
public WorkspaceAppCache() {
mAppsNotInWorkspace = new HashSet<String>();
mAppsInWorkspace = new HashMap<String, String>();
}
public boolean isWorkspaceApp(String appName) {
if (mAppsNotInWorkspace.contains(appName)) {
return false;
}
String projectName = mAppsInWorkspace.get(appName);
if (projectName == null) {
IProject p = ProjectHelper.findAndroidProjectByAppName(appName);
if (p == null) {
mAppsNotInWorkspace.add(appName);
} else {
projectName = p.getName();
mAppsInWorkspace.put(appName, projectName);
}
}
return projectName != null;
}
/** {@inheritDoc} */
@Override
public void projectRenamed(IProject project, IPath from) {
// when a project is renamed, ideally we should just update the current
// known mapping of app name -> project name. However, the projectRenamed
// callback is called only after projectDeleted() and projectOpened() are called,
// so there is really nothing we can do here..
}
/** {@inheritDoc} */
@Override
public void projectOpenedWithWorkspace(IProject project) {
// don't do anything as the cache is lazily initialized
}
@Override
public void allProjectsOpenedWithWorkspace() {
// don't do anything as the cache is lazily initialized
}
/** {@inheritDoc} */
@Override
public void projectOpened(IProject project) {
// A newly opened project could contribute some Android application.
// So we invalidate the set of apps that are known to be not in the workspace, as
// that set could be out of date now.
mAppsNotInWorkspace.clear();
}
/** {@inheritDoc} */
@Override
public void projectDeleted(IProject project) {
// Deletion is effectively the same as closing
projectClosed(project);
}
/** {@inheritDoc} */
@Override
public void projectClosed(IProject project) {
// When a project is closed, remove all mappings contributed by the project.
Map<String, String> updatedCache = new HashMap<String, String>();
String name = project.getName();
for (Entry<String, String> e : mAppsInWorkspace.entrySet()) {
if (!e.getValue().equals(name)) {
updatedCache.put(e.getKey(), e.getValue());
}
}
mAppsInWorkspace = updatedCache;
}
}
}
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