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/*
* Copyright (C) 2020 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.tools.bazel.avd;
import org.junit.rules.ExternalResource;
/** JUnit rule that calls the executable generated by the avd rule to start and stop an emulator. */
public final class Emulator extends ExternalResource {
private final String devicePath;
private final String port;
/**
* Instantiates a rule that starts and stops an emulator created by the avd rule.
*
* @param devicePath Path to the device executable generated by the avd rule.
* @param port ADB port to start the emulator on.
*/
public Emulator(String devicePath, int port) {
this.devicePath = devicePath;
this.port = String.valueOf(port);
}
@Override
public void before() throws Throwable {
System.out.println("Starting emulator");
exec(devicePath, port);
System.out.println("Emulator started");
}
@Override
public void after() {
try {
System.out.println("Killing emulator");
exec(devicePath, "kill", port);
System.out.println("Emulator killed");
} catch (Exception ex) {
ex.printStackTrace();
}
}
private static void exec(String... cmd) throws Exception {
int exitCode = new ProcessBuilder().command(cmd).inheritIO().start().waitFor();
if (exitCode != 0) {
throw new Exception(String.format("Emulator script exited with code: %d", exitCode));
}
}
}
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