org.kurento.test.utils.Shell.java Source code

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Here is the source code for org.kurento.test.utils.Shell.java

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/*
 * (C) Copyright 2014 Kurento (http://kurento.org/)
 *
 * 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 org.kurento.test.utils;

import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

import org.kurento.commons.exception.KurentoException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.common.io.CharStreams;

/**
 * Local shell.
 *
 * @author Boni Garcia (bgarcia@gsyc.es)
 * @since 4.2.3
 */
public class Shell {

    public static Logger log = LoggerFactory.getLogger(Shell.class);

    public static Process run(final String... command) {
        return run(true, command);
    }

    public static Process run(boolean redirectOutputs, final String... command) {
        log.trace("Running command on the shell: {}", Arrays.toString(command));

        try {
            ProcessBuilder p = new ProcessBuilder(command);
            p.redirectErrorStream(true);
            if (redirectOutputs) {
                p.redirectOutput(ProcessBuilder.Redirect.INHERIT);
            }
            return p.start();
        } catch (IOException e) {
            throw new RuntimeException("Exception while executing command '" + Arrays.toString(command) + "'", e);
        }
    }

    public static String runAndWaitString(final String command) {
        return runAndWait(command.split(" "));
    }

    public static String runAndWaitArray(final String[] command) {
        log.trace("Running command on the shell: {}", Arrays.toString(command));
        String result = runAndWaitNoLog(command);
        log.trace("Result:" + result);
        return result;
    }

    public static String runAndWait(final String... command) {
        return runAndWaitArray(command);
    }

    public static String runAndWaitNoLog(final String... command) {
        Process p;
        try {
            p = new ProcessBuilder(command).redirectErrorStream(true).start();

            String output = CharStreams.toString(new InputStreamReader(p.getInputStream(), "UTF-8"));

            p.destroy();

            return output;

        } catch (IOException e) {
            throw new KurentoException("Exception executing command on the shell: " + Arrays.toString(command), e);
        }
    }

}