edu.iu.lda.TopicCountList.java Source code

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Here is the source code for edu.iu.lda.TopicCountList.java

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/*
 * Copyright 2013-2017 Indiana University
 * 
 * Licensed 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 edu.iu.lda;

import edu.iu.harp.resource.Writable;
import it.unimi.dsi.fastutil.longs.LongArrayList;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

public class TopicCountList extends Writable {

    protected static final Log LOG = LogFactory.getLog(TopicCountList.class);

    private final LongArrayList topicCount;

    public TopicCountList() {
        topicCount = new LongArrayList();
    }

    public LongArrayList getTopicCount() {
        return topicCount;
    }

    @Override
    public int getNumWriteBytes() {
        return 4 + topicCount.size() * 8;
    }

    @Override
    public void write(DataOutput out) throws IOException {
        out.writeInt(topicCount.size());
        for (int i = 0; i < topicCount.size(); i++) {
            out.writeLong(topicCount.getLong(i));
        }
    }

    @Override
    public void read(DataInput in) throws IOException {
        int size = in.readInt();
        for (int i = 0; i < size; i++) {
            topicCount.add(in.readLong());
        }
        topicCount.trim();
    }

    @Override
    public void clear() {
        topicCount.clear();
    }
}