source: main/trunk/gli/src/org/greenstone/gatherer/util/OutputStreamGobbler.java@ 29017

package org.greenstone.gatherer.util;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;

// http://www.javaworld.com/article/2071275/core-java/when-runtime-exec---won-t.html?page=2
// This class is used in FormatConversionDialog to properly write to the inputstream of a Process
public class OutputStreamGobbler extends Thread
{
    OutputStream os = null;
    String inputstr = "";
    
    public OutputStreamGobbler(OutputStream os, String inputstr)
    {
    this.os = os;
    this.inputstr = inputstr;
    }
    
    public void run()
    {
    BufferedWriter osw = null;
    try {
        osw = new BufferedWriter(new OutputStreamWriter(os, "UTF-8"));
        //System.out.println("@@@ SENDING LINE: " + inputstr);
        osw.write(inputstr, 0, inputstr.length());
        osw.newLine();//osw.write("\n");
        osw.flush();
        
        // Don't explicitly send EOF when using StreamGobblers as below, 
        // as the EOF char is echoed to output.
        // Flushing the write handle and/or closing the resource seems 
        // to already send EOF silently.
        
        /*if(Utility.isWindows()) {
          osw.write("\032"); // octal for Ctrl-Z, EOF on Windows
          } else { // EOF on Linux/Mac is Ctrl-D
          osw.write("\004"); // octal for Ctrl-D, see http://www.unix-manuals.com/refs/misc/ascii-table.html
          }
          osw.flush();
        */
    } catch (IOException ioe) {
        ioe.printStackTrace();  
    } finally {
        Utility.closeResource(osw);
    }
    }   
}