dk.netarkivet.common.utils.batch.GoodPostProcessingJob.java Source code

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Here is the source code for dk.netarkivet.common.utils.batch.GoodPostProcessingJob.java

Source

/*
 * #%L
 * Netarchivesuite - common - test
 * %%
 * Copyright (C) 2005 - 2014 The Royal Danish Library, the Danish State and University Library,
 *             the National Library of France and the Austrian National Library.
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 2.1 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Lesser Public License for more details.
 * 
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/lgpl-2.1.html>.
 * #L%
 */
package dk.netarkivet.common.utils.batch;

import java.io.BufferedReader;
import java.io.File;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;

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

@SuppressWarnings({ "serial" })
public class GoodPostProcessingJob extends FileBatchJob {

    @Override
    public void finish(OutputStream os) {
        // TODO Auto-generated method stub
    }

    @Override
    public void initialize(OutputStream os) {
        // TODO Auto-generated method stub
    }

    @Override
    public boolean processFile(File file, OutputStream os) {
        try {
            os.write((file.getName() + "\n").getBytes());
        } catch (Exception e) {
            return false;
        }

        return true;
    }

    @Override
    public boolean postProcess(InputStream input, OutputStream output) {
        Log log = LogFactory.getLog(this.getClass());
        try {
            // sort the input stream.
            List<String> filenames = new ArrayList<String>();

            log.info("Reading all the filenames.");
            // read all the filenames.
            BufferedReader br = new BufferedReader(new InputStreamReader(input));
            String line;
            while ((line = br.readLine()) != null) {
                filenames.add(line);
            }

            log.info("Sorting the filenames");
            // sort and print to output.
            Collections.sort(filenames);
            for (String file : filenames) {
                output.write(file.getBytes());
                output.write("\n".getBytes());
            }

            return true;
        } catch (Exception e) {
            log.warn(e.getMessage());
            return false;
        }
    }
}