de.kp.core.spade.hadoop.PatternWritable.java Source code

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Here is the source code for de.kp.core.spade.hadoop.PatternWritable.java

Source

package de.kp.core.spade.hadoop;
/* Copyright (c) 2014 Dr. Krusche & Partner PartG
* 
* This file is part of the Core-SPADE project
* (https://github.com/skrusche63/core-spade).
* 
* Core-SPADE is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
* 
* Core-SPADE 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 Public License for more details.
* You should have received a copy of the GNU General Public License along with
* Core-SPADE. 
* 
* If not, see <http://www.gnu.org/licenses/>.
*/

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;
import java.util.BitSet;
import java.util.List;

import org.apache.hadoop.io.Writable;

import de.kp.core.spade.ItemAbstractionPair;
import de.kp.core.spade.Pattern;

public class PatternWritable implements Writable {

    private BitSetWritable appearingInWritable;
    private ItemAbstractionPairListWritable itemAbstractionPairListWritable;

    public PatternWritable() {

        this.appearingInWritable = new BitSetWritable();
        this.itemAbstractionPairListWritable = new ItemAbstractionPairListWritable();
    }

    public PatternWritable(Pattern pattern) {

        this.appearingInWritable = new BitSetWritable(pattern.getAppearingIn());
        this.itemAbstractionPairListWritable = new ItemAbstractionPairListWritable(pattern.getElements());

    }

    /* (non-Javadoc)
     * @see org.apache.hadoop.io.Writable#readFields(java.io.DataInput)
     */
    @Override
    public void readFields(DataInput in) throws IOException {

        appearingInWritable.readFields(in);
        itemAbstractionPairListWritable.readFields(in);
    }

    /* (non-Javadoc)
     * @see org.apache.hadoop.io.Writable#write(java.io.DataOutput)
     */
    @Override
    public void write(DataOutput out) throws IOException {

        appearingInWritable.write(out);
        itemAbstractionPairListWritable.write(out);

    }

    public Pattern get() {

        BitSet appearingIn = appearingInWritable.get();
        List<ItemAbstractionPair> elements = itemAbstractionPairListWritable.get();

        Pattern pattern = new Pattern(elements);
        pattern.setAppearingIn(appearingIn);

        return pattern;

    }
}