accumulo.ingest.AbstractAccumuloCsvIngest.java Source code

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Here is the source code for accumulo.ingest.AbstractAccumuloCsvIngest.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 accumulo.ingest;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import org.apache.accumulo.core.client.lexicoder.LongLexicoder;
import org.apache.accumulo.core.data.Value;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.io.WritableUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import accumulo.input.AccumuloCsvInput;
import accumulo.input.AccumuloCsvInputFactory;
import accumulo.input.AccumuloCsvOptions;

/**
 *
 */
public abstract class AbstractAccumuloCsvIngest implements AccumuloCsvIngest {
    private static final Logger log = LoggerFactory.getLogger(AbstractAccumuloCsvIngest.class);

    protected final AccumuloCsvInput inputs;
    protected final LongLexicoder lex;

    public AbstractAccumuloCsvIngest(AccumuloCsvOptions opts) {
        inputs = AccumuloCsvInputFactory.getInput(opts.getInputFile());
        lex = new LongLexicoder();
    }

    protected void setRowId(Text buffer, Text fileName, long recordCount) {
        final byte[] rowSuffix = lex.encode(recordCount);
        buffer.clear();
        buffer.append(fileName.getBytes(), 0, fileName.getLength());
        buffer.append(rowSuffix, 0, rowSuffix.length);
    }

    protected Value longToValue(long l) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(baos);

        try {
            WritableUtils.writeVLong(dos, l);
        } catch (IOException e) {
            log.error("IOException writing to a byte array...", e);
            throw new RuntimeException(e);
        }

        return new Value(baos.toByteArray());
    }

}