| /* |
| * Copyright (C) 2011 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.tradefed.device; |
| |
| import com.android.ddmlib.IShellOutputReceiver; |
| import com.android.tradefed.util.ByteArrayList; |
| |
| /** |
| * A {@link IShellOutputReceiver} which collects the whole shell output into a {@link byte[]}. |
| * This is useful for shell commands that will produce a significant amount of output, where the |
| * 2x {@link String} memory overhead will be significant. |
| */ |
| public class CollectingByteOutputReceiver implements IShellOutputReceiver { |
| private ByteArrayList mData = new ByteArrayList(); |
| private boolean mIsCanceled = false; |
| |
| public byte[] getOutput() { |
| return mData.getContents(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean isCancelled() { |
| return mIsCanceled; |
| } |
| |
| /** |
| * Cancel the output collection |
| */ |
| public void cancel() { |
| mIsCanceled = true; |
| clear(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void addOutput(byte[] data, int offset, int length) { |
| if (!isCancelled()) { |
| mData.addAll(data, offset, length); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void flush() { |
| // ignore |
| } |
| |
| /** |
| * Try to unref everything that we can |
| */ |
| public void clear() { |
| mData.clear(); |
| } |
| } |