org.openmrs.module.reportingsummary.api.io.util.StreamHandler.java Source code

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Here is the source code for org.openmrs.module.reportingsummary.api.io.util.StreamHandler.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */

package org.openmrs.module.reportingsummary.api.io.util;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Class to handle the stream output of executing a command in the shell or command line.
 */
public class StreamHandler implements Runnable {

    private static final Log log = LogFactory.getLog(StreamHandler.class);

    private final InputStream stream;

    private final String source;

    public StreamHandler(final InputStream stream, final String source) {
        this.stream = stream;
        this.source = source;
    }

    /**
     * @see Runnable#run()
     */
    @Override
    public void run() {
        try {
            BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
            String line;
            while ((line = reader.readLine()) != null)
                log.info(source + ": " + line);
            reader.close();
        } catch (IOException e) {
            log.error("Handling stream from runtime exec failed ...", e);
        }
    }
}