| /* |
| * Copyright (C) 2022 The Android Open Source Project |
| * |
| * 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 com.android.server.resources; |
| |
| import android.content.res.IResourcesManager; |
| import android.os.ConditionVariable; |
| import android.os.ParcelFileDescriptor; |
| import android.os.RemoteCallback; |
| import android.os.RemoteException; |
| import android.os.ShellCommand; |
| import android.util.Slog; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| |
| /** |
| * Shell command handler for resources related commands |
| */ |
| public class ResourcesManagerShellCommand extends ShellCommand { |
| private static final String TAG = "ResourcesManagerShellCommand"; |
| |
| private final IResourcesManager mInterface; |
| |
| public ResourcesManagerShellCommand(IResourcesManager anInterface) { |
| mInterface = anInterface; |
| } |
| |
| @Override |
| public int onCommand(String cmd) { |
| if (cmd == null) { |
| return handleDefaultCommands(cmd); |
| } |
| final PrintWriter err = getErrPrintWriter(); |
| try { |
| switch (cmd) { |
| case "dump": |
| return dumpResources(); |
| default: |
| return handleDefaultCommands(cmd); |
| } |
| } catch (IllegalArgumentException e) { |
| err.println("Error: " + e.getMessage()); |
| } catch (RemoteException e) { |
| err.println("Remote exception: " + e); |
| } |
| return -1; |
| } |
| |
| private int dumpResources() throws RemoteException { |
| String processId = getNextArgRequired(); |
| try (ParcelFileDescriptor pfd = ParcelFileDescriptor.dup(getOutFileDescriptor())) { |
| ConditionVariable lock = new ConditionVariable(); |
| RemoteCallback |
| finishCallback = new RemoteCallback(result -> lock.open(), null); |
| |
| if (!mInterface.dumpResources(processId, pfd, finishCallback)) { |
| getErrPrintWriter().println("RESOURCES DUMP FAILED on process " + processId); |
| return -1; |
| } |
| lock.block(5000); |
| return 0; |
| } catch (IOException e) { |
| Slog.e(TAG, "Exception while dumping resources", e); |
| getErrPrintWriter().println("Exception while dumping resources: " + e.getMessage()); |
| } |
| return -1; |
| } |
| |
| @Override |
| public void onHelp() { |
| final PrintWriter out = getOutPrintWriter(); |
| out.println("Resources manager commands:"); |
| out.println(" help"); |
| out.println(" Print this help text."); |
| out.println(" dump <PROCESS>"); |
| out.println(" Dump the Resources objects in use as well as the history of Resources"); |
| |
| } |
| } |