/*
 * (C) Copyright 2017-2018 OpenVidu (https://openvidu.io/)
 *
 * 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 io.openvidu.server.utils;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class CommandExecutor {

	public static String execCommand(String... command) throws IOException, InterruptedException {

		ProcessBuilder processBuilder = new ProcessBuilder(command);
		processBuilder.redirectErrorStream(true);

		Process process = processBuilder.start();
		StringBuilder processOutput = new StringBuilder();

		try (BufferedReader processOutputReader = new BufferedReader(
				new InputStreamReader(process.getInputStream()));) {

			String readLine;
			while ((readLine = processOutputReader.readLine()) != null) {
				processOutput.append(readLine + System.lineSeparator());
			}
			process.waitFor();
		}

		return processOutput.toString().trim();
	}

}
