com.axemblr.service.cm.util.StreamGobbler.java Source code

Introduction

Here is the source code for com.axemblr.service.cm.util.StreamGobbler.java

Source

/*
 * Copyright S.C. Axemblr Software Solutions S.R.L. (c) 2012.
 *
 * This file is subject to the terms and conditions defined in file
 * 'LICENSE.txt', which is part of this source code package.
 */

package com.axemblr.service.cm.util;

import static com.google.common.base.Preconditions.checkNotNull;
import com.google.common.io.Closeables;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintStream;

/**
 * Sends streams to output in background. Closes the stream in case of exception.
 * <p/>
 * Thanks to: http://www.javaworld.com/jw-12-2000/jw-1229-traps.html?page=4
 */
public class StreamGobbler implements Runnable {
    private InputStream is;
    private String type;
    private PrintStream out;

    public StreamGobbler(InputStream is, String type) {
        this(is, type, System.out);
    }

    StreamGobbler(InputStream is, String type, PrintStream out) {
        this.is = checkNotNull(is);
        this.type = checkNotNull(type);
        this.out = checkNotNull(out);
    }

    public void run() {
        try {
            InputStreamReader isr = new InputStreamReader(is);
            BufferedReader br = new BufferedReader(isr);
            String line = null;
            while ((line = br.readLine()) != null)
                out.println(type + ">" + line);
        } catch (IOException ioe) {
            ioe.printStackTrace();
        } finally {
            Closeables.closeQuietly(is);
        }
    }
}