/*
* 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.accumulo.examples.simple.client;
import org.apache.accumulo.core.cli.BatchWriterOpts;
import org.apache.accumulo.core.cli.ClientOnRequiredTable;
import org.apache.accumulo.core.client.AccumuloException;
import org.apache.accumulo.core.client.AccumuloSecurityException;
import org.apache.accumulo.core.client.BatchWriter;
import org.apache.accumulo.core.client.Connector;
import org.apache.accumulo.core.client.MutationsRejectedException;
import org.apache.accumulo.core.client.TableNotFoundException;
import org.apache.accumulo.core.data.Mutation;
import org.apache.accumulo.core.security.ColumnVisibility;
import com.beust.jcommander.Parameter;
/**
* Simple example for writing random data in sequential order to Accumulo. See docs/examples/README.batch for instructions.
*/
public class SequentialBatchWriter {
static class Opts extends ClientOnRequiredTable {
@Parameter(names="--start")
long start = 0;
@Parameter(names="--num", required=true)
long num = 0;
@Parameter(names="--size", required=true, description="size of the value to write")
int valueSize = 0;
@Parameter(names="--vis", converter=VisibilityConverter.class)
ColumnVisibility vis = new ColumnVisibility();
}
/**
* Writes a specified number of entries to Accumulo using a {@link BatchWriter}. The rows of the entries will be sequential starting at a specified number.
* The column families will be "foo" and column qualifiers will be "1". The values will be random byte arrays of a specified size.
*/
public static void main(String[] args) throws AccumuloException, AccumuloSecurityException, TableNotFoundException, MutationsRejectedException {
Opts opts = new Opts();
BatchWriterOpts bwOpts = new BatchWriterOpts();
opts.parseArgs(SequentialBatchWriter.class.getName(), args, bwOpts);
Connector connector = opts.getConnector();
BatchWriter bw = connector.createBatchWriter(opts.tableName, bwOpts.getBatchWriterConfig());
long end = opts.start + opts.num;
for (long i = opts.start; i < end; i++) {
Mutation m = RandomBatchWriter.createMutation(i, opts.valueSize, opts.vis);
bw.addMutation(m);
}
bw.close();
}
}