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Sketch out a 'bmgr' command line tool

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Not finished, but eventually will allow adb shell access to the Backup Manager
for testing purposes etc.
This commit is contained in:
Christopher Tate
2009-06-15 18:07:25 -07:00
parent 9908b3d820
commit ace7f094bf
7 changed files with 413 additions and 17 deletions
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15
cmds/bmgr/Android.mk Normal file
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# Copyright 2007 The Android Open Source Project
#
LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)
LOCAL_SRC_FILES := $(call all-subdir-java-files)
LOCAL_MODULE := bmgr
include $(BUILD_JAVA_LIBRARY)
include $(CLEAR_VARS)
ALL_PREBUILT += $(TARGET_OUT)/bin/bmgr
$(TARGET_OUT)/bin/bmgr : $(LOCAL_PATH)/bmgr | $(ACP)
$(transform-prebuilt-to-target)

0
cmds/bmgr/MODULE_LICENSE_APACHE2 Normal file
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190
cmds/bmgr/NOTICE Normal file
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@ -0,0 +1,190 @@
Copyright (c) 2009, 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.
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.
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7
cmds/bmgr/bmgr Executable file
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@ -0,0 +1,7 @@
# Script to start "bmgr" on the device, which has a very rudimentary
# shell.
#
base=/system
export CLASSPATH=$base/framework/bmgr.jar
exec app_process $base/bin com.android.commands.bmgr.Bmgr "$@"

167
cmds/bmgr/src/com/android/commands/bmgr/Bmgr.java Normal file
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@ -0,0 +1,167 @@
/*
* Copyright (C) 2009 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.commands.bmgr;
import android.backup.IBackupManager;
import android.backup.IRestoreSession;
import android.backup.RestoreSet;
import android.os.RemoteException;
import android.os.ServiceManager;
public final class Bmgr {
IBackupManager mBmgr;
IRestoreSession mRestore;
static final String BMGR_NOT_RUNNING_ERR =
"Error: Could not access the Backup Manager. Is the system running?";
static final String TRANSPORT_NOT_RUNNING_ERR =
"Error: Could not access the backup transport. Is the system running?";
private String[] mArgs;
private int mNextArg;
private String mCurArgData;
public static void main(String[] args) {
new Bmgr().run(args);
}
public void run(String[] args) {
boolean validCommand = false;
if (args.length < 1) {
showUsage();
return;
}
mBmgr = IBackupManager.Stub.asInterface(ServiceManager.getService("backup"));
if (mBmgr == null) {
System.err.println(BMGR_NOT_RUNNING_ERR);
return;
}
mArgs = args;
String op = args[0];
mNextArg = 1;
if ("run".equals(op)) {
doRun();
return;
}
if ("backup".equals(op)) {
doBackup();
return;
}
if ("list".equals(op)) {
doList();
return;
}
}
private void doRun() {
try {
mBmgr.backupNow();
} catch (RemoteException e) {
System.err.println(e.toString());
System.err.println(BMGR_NOT_RUNNING_ERR);
}
}
private void doBackup() {
boolean isFull = false;
String pkg = nextArg();
if ("-f".equals(pkg)) {
isFull = true;
pkg = nextArg();
}
if (pkg == null || pkg.startsWith("-")) {
showUsage();
return;
}
try {
// !!! TODO: handle full backup
mBmgr.dataChanged(pkg);
} catch (RemoteException e) {
System.err.println(e.toString());
System.err.println(BMGR_NOT_RUNNING_ERR);
}
}
private void doList() {
String arg = nextArg(); // sets, transports, packages set#
if ("transports".equals(arg)) {
doListTransports();
return;
}
// The rest of the 'list' options work with a restore session on the current transport
try {
int curTransport = mBmgr.getCurrentTransport();
mRestore = mBmgr.beginRestoreSession(curTransport);
if ("sets".equals(arg)) {
doListRestoreSets();
}
mRestore.endRestoreSession();
} catch (RemoteException e) {
System.err.println(e.toString());
System.err.println(BMGR_NOT_RUNNING_ERR);
}
}
private void doListTransports() {
}
private void doListRestoreSets() {
try {
RestoreSet[] sets = mRestore.getAvailableRestoreSets();
if (sets.length == 0) {
System.out.println("No restore sets available");
} else {
for (RestoreSet s : sets) {
System.out.println(" " + s.token + " : " + s.name);
}
}
} catch (RemoteException e) {
System.err.println(e.toString());
System.err.println(TRANSPORT_NOT_RUNNING_ERR);
}
}
private String nextArg() {
if (mNextArg >= mArgs.length) {
return null;
}
String arg = mArgs[mNextArg];
mNextArg++;
return arg;
}
private static void showUsage() {
System.err.println("usage: bmgr [backup|restore|list|transport|run]");
System.err.println(" bmgr backup [-f] package");
System.err.println(" bmgr list sets");
System.err.println(" #bmgr list transports");
System.err.println(" #bmgr transport which#");
System.err.println(" #bmgr restore set#");
System.err.println(" bmgr run");
}
}

16
core/java/android/backup/IBackupManager.aidl
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@ -48,10 +48,22 @@ interface IBackupManager {
oneway void agentDisconnected(String packageName);
/**
* Schedule a full backup of the given package. Callers must hold the
* Schedule an immediate backup attempt for all pending updates. This is
* primarily intended for transports to use when they detect a suitable
* opportunity for doing a backup pass. If there are no pending updates to
* be sent, no action will be taken. Even if some updates are pending, the
* transport will still be asked to confirm via the usual requestBackupTime()
* method.
*
* <p>Callers must hold the android.permission.BACKUP permission to use this method.
*/
oneway void backupNow();
/**
* Identify the currently selected transport. Callers must hold the
* android.permission.BACKUP permission to use this method.
*/
oneway void scheduleFullBackup(String packageName);
int getCurrentTransport();
/**
* Specify a default backup transport. Callers must hold the

33
services/java/com/android/server/BackupManagerService.java
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@ -253,8 +253,12 @@ class BackupManagerService extends IBackupManager.Stub {
case MSG_RUN_BACKUP:
// snapshot the pending-backup set and work on that
File oldJournal = mJournal;
RandomAccessFile oldJournalStream = mJournalStream;
synchronized (mQueueLock) {
if (mPendingBackups.size() == 0) {
Log.v(TAG, "Backup requested but nothing pending");
break;
}
if (mBackupQueue == null) {
mBackupQueue = new ArrayList<BackupRequest>();
for (BackupRequest b: mPendingBackups.values()) {
@ -262,7 +266,8 @@ class BackupManagerService extends IBackupManager.Stub {
}
mPendingBackups = new HashMap<ApplicationInfo,BackupRequest>();
}
// !!! TODO: start a new backup-queue journal file too
// Start a new backup-queue journal file too
if (mJournalStream != null) {
try {
mJournalStream.close();
@ -893,22 +898,22 @@ class BackupManagerService extends IBackupManager.Stub {
}
}
// Schedule a backup pass for a given package. This method will schedule a
// full backup even for apps that do not declare an android:backupAgent, so
// use with care.
public void scheduleFullBackup(String packageName) throws RemoteException {
mContext.enforceCallingPermission("android.permission.BACKUP", "scheduleFullBackup");
// Run a backup pass immediately for any applications that have declared
// that they have pending updates.
public void backupNow() throws RemoteException {
mContext.enforceCallingPermission("android.permission.BACKUP", "tryBackupNow");
if (DEBUG) Log.v(TAG, "Scheduling immediate full backup for " + packageName);
if (DEBUG) Log.v(TAG, "Scheduling immediate backup pass");
synchronized (mQueueLock) {
try {
ApplicationInfo app = mPackageManager.getApplicationInfo(packageName, 0);
mPendingBackups.put(app, new BackupRequest(app, true));
mBackupHandler.sendEmptyMessage(MSG_RUN_FULL_BACKUP);
} catch (NameNotFoundException e) {
Log.w(TAG, "Could not find app for " + packageName + " to schedule full backup");
mBackupHandler.removeMessages(MSG_RUN_BACKUP);
mBackupHandler.sendEmptyMessage(MSG_RUN_BACKUP);
}
}
// Report the currently active transport
public int getCurrentTransport() {
mContext.enforceCallingPermission("android.permission.BACKUP", "selectBackupTransport");
return mTransportId;
}
// Select which transport to use for the next backup operation