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);
+ }
+
public boolean connectDebugger(String appName, int appPort, int selectedPort) {
// search for an android project matching the process name
IProject project = ProjectHelper.findAndroidProjectByAppName(appName);
/** {@inheritDoc} */
public boolean isWorkspaceApp(String appName) {
- return ProjectHelper.findAndroidProjectByAppName(appName) != null;
+ 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} */
+ 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} */
+ public void projectOpenedWithWorkspace(IProject project) {
+ // don't do anything as the cache is lazily initialized
+ }
+
+ /** {@inheritDoc} */
+ 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} */
+ public void projectDeleted(IProject project) {
+ // Deletion is effectively the same as closing
+ projectClosed(project);
+ }
+
+ /** {@inheritDoc} */
+ 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;
+ }
}
}