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

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Here is the source code for org.apache.tajo.storage.text.LineSplitProcessor.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 LineSplitProcessor implements ByteBufProcessor {
    public static final byte CR = '\r';
    public static final byte LF = '\n';
    private boolean prevCharCR = false; //true of prev char was CR

    @Override
    public boolean process(byte value) throws Exception {
        switch (value) {
        case LF:
            return false;
        case CR:
            prevCharCR = true;
            return false;
        default:
            prevCharCR = false;
            return true;
        }
    }

    public boolean isPrevCharCR() {
        return prevCharCR;
    }
}