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/*
* 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.util.HashMap;
import java.util.Map;
@OptionClass(alias = "set-restore-sys-prop")
public class SetAndRestoreSystemPropertyTargetPreparer implements ITargetCleaner {
@Option(name = "set-property",
description = "Property to set then restore on cleanup")
private Map<String, String> mProperties = new HashMap<>();
private Map<String, String> mOldProperties = new HashMap<>();
private void setProperty(ITestDevice device, String prop, String newValue)
throws DeviceNotAvailableException {
device.executeShellCommand(String.format("setprop \"%s\" \"%s\"", prop, newValue));
}
private String getProperty(ITestDevice device, String prop)
throws DeviceNotAvailableException {
return device.executeShellCommand(String.format("getprop \"%s\"", prop)).trim();
}
@Override
public void setUp(ITestDevice device, IBuildInfo buildInfo)
throws TargetSetupError, BuildError, DeviceNotAvailableException {
for (String prop : mProperties.keySet()) {
String oldValue = getProperty(device, prop);
mOldProperties.put(prop, oldValue);
String newValue = mProperties.get(prop);
setProperty(device, prop, newValue);
if (!getProperty(device, prop).equals(newValue)) {
throw new TargetSetupError("Failed to set property " + prop,
device.getDeviceDescriptor());
}
}
}
@Override
public void tearDown(ITestDevice device, IBuildInfo buildInfo, Throwable e)
throws DeviceNotAvailableException {
for (Map.Entry<String, String> entry : mOldProperties.entrySet()) {
setProperty(device, entry.getKey(), entry.getValue());
}
}
}
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