com.panet.imeta.core.playlist.FilePlayListReplayLineNumberFile.java Source code

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Here is the source code for com.panet.imeta.core.playlist.FilePlayListReplayLineNumberFile.java

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/*
 * Copyright (c) 2007 Pentaho Corporation.  All rights reserved. 
 * This software was developed by Pentaho Corporation and is provided under the terms 
 * of the GNU Lesser General Public License, Version 2.1. You may not use 
 * this file except in compliance with the license. If you need a copy of the license, 
 * please go to http://www.gnu.org/licenses/lgpl-2.1.txt. The Original Code is Pentaho 
 * Data Integration.  The Initial Developer is Pentaho Corporation.
 *
 * Software distributed under the GNU Lesser Public License is distributed on an "AS IS" 
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or  implied. Please refer to 
 * the license for the specific language governing your rights and limitations.
*/
/**
 * 
 */
package com.panet.imeta.core.playlist;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;
import java.util.Set;

import org.apache.commons.vfs.FileObject;

import com.panet.imeta.core.exception.KettleException;
import com.panet.imeta.core.logging.LogWriter;
import com.panet.imeta.core.vfs.KettleVFS;

class FilePlayListReplayLineNumberFile extends FilePlayListReplayFile {
    Set<Long> lineNumbers = new HashSet<Long>();

    public FilePlayListReplayLineNumberFile(FileObject lineNumberFile, String encoding, FileObject processingFile,
            String filePart) throws KettleException {
        super(processingFile, filePart);
        initialize(lineNumberFile, encoding);
    }

    private void initialize(FileObject lineNumberFile, String encoding) throws KettleException {
        BufferedReader reader = null;
        try {
            if (encoding == null)
                reader = new BufferedReader(new InputStreamReader(KettleVFS.getInputStream(lineNumberFile)));
            else
                reader = new BufferedReader(
                        new InputStreamReader(KettleVFS.getInputStream(lineNumberFile), encoding));
            String line = null;
            while ((line = reader.readLine()) != null) {
                if (line.length() > 0)
                    lineNumbers.add(Long.valueOf(line));
            }
        } catch (Exception e) {
            throw new KettleException("Could not read line number file " + lineNumberFile.getName().getURI(), e);
        } finally {
            if (reader != null)
                try {
                    reader.close();
                } catch (IOException e) {
                    LogWriter.getInstance().logBasic("TextFilePlayLineNumber",
                            "Could not close line number file " + lineNumberFile.getName().getURI());
                }
        }
    }

    public boolean isProcessingNeeded(FileObject file, long lineNr, String filePart) throws KettleException {
        return lineNumbers.contains(new Long(lineNr));
    }
}