| /* |
| * Copyright (C) 2017 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.targetprep; |
| |
| import com.android.tradefed.build.IBuildInfo; |
| import com.android.tradefed.config.Option; |
| import com.android.tradefed.config.OptionClass; |
| import com.android.tradefed.device.DeviceNotAvailableException; |
| import com.android.tradefed.device.ITestDevice; |
| |
| import java.io.File; |
| |
| /** |
| * Target preparer to write a string to a file. |
| * |
| * <p>If the file already exists, this will restore the old version on tear down. |
| */ |
| @OptionClass(alias = "write-file") |
| public class DeviceStringPusher extends BaseTargetPreparer implements ITargetCleaner { |
| @Option(name = "file-path", description = "Path of file to write") |
| private String mFileName; |
| |
| @Option(name = "file-content", description = "Contents to write to file") |
| private String mFileContent; |
| |
| private File mOldContents; |
| |
| @Override |
| public void setUp(ITestDevice device, IBuildInfo buildInfo) |
| throws TargetSetupError, BuildError, DeviceNotAvailableException { |
| if (device.doesFileExist(mFileName)) { |
| mOldContents = device.pullFile(mFileName); |
| } |
| if (!device.pushString(mFileContent, mFileName)) { |
| throw new TargetSetupError( |
| "Failed to push string to file", device.getDeviceDescriptor()); |
| } |
| } |
| |
| @Override |
| public void tearDown(ITestDevice device, IBuildInfo buildInfo, Throwable e) |
| throws DeviceNotAvailableException { |
| if (mOldContents == null) { |
| device.executeShellCommand(String.format("rm -f %s", mFileName)); |
| } else { |
| device.pushFile(mOldContents, mFileName); |
| } |
| } |
| } |