org.apache.tajo.storage.text.MultiBytesFieldSplitProcessor.java Source code

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Here is the source code for org.apache.tajo.storage.text.MultiBytesFieldSplitProcessor.java

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/**
 * 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.tajo.storage.text;

import io.netty.buffer.ByteBufProcessor;

public class MultiBytesFieldSplitProcessor implements ByteBufProcessor {

    private int index;
    private final byte[] delimiter;

    public MultiBytesFieldSplitProcessor(byte[] recordDelimiterByte) {
        this.delimiter = recordDelimiterByte;
    }

    @Override
    public boolean process(byte value) throws Exception {
        if (delimiter[index] != value) {
            index = 0;
            return true;
        }
        if (index != delimiter.length - 1) {
            index++;
            return true;
        }
        index = 0;
        return false;
    }
}