StandardOutReader.java

/**
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.airavata.gfac.impl;

import com.jcraft.jsch.Channel;

import org.apache.airavata.gfac.core.cluster.CommandOutput;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

public class StandardOutReader implements CommandOutput {

    private static final Logger logger = LoggerFactory.getLogger(StandardOutReader.class);
    String stdOutputString = null;
    ByteArrayOutputStream errorStream = new ByteArrayOutputStream();
	private int exitCode;

	public void onOutput(Channel channel) {
        try {
            StringBuffer pbsOutput = new StringBuffer("");
            InputStream inputStream =  channel.getInputStream();
            byte[] tmp = new byte[1024];
            do {
                while (inputStream.available() > 0) {
                    int i = inputStream.read(tmp, 0, 1024);
                    if (i < 0) break;
                    pbsOutput.append(new String(tmp, 0, i));
                }
            } while (!channel.isClosed()) ;
            String output = pbsOutput.toString();
            this.setStdOutputString(output);
        } catch (IOException e) {
            logger.error(e.getMessage(), e);
        }

    }


    public void exitCode(int code) {
        System.out.println("Program exit code - " + code);
	    this.exitCode = code;
    }

	@Override
	public int getExitCode() {
		return exitCode;
	}

	public String getStdOutputString() {
        return stdOutputString;
    }

    public void setStdOutputString(String stdOutputString) {
        this.stdOutputString = stdOutputString;
    }

    public String getStdErrorString() {
        return errorStream.toString();
    }

    public OutputStream getStandardError() {
        return errorStream;
    }
}