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* 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
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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package org.apache.accumulo.test.randomwalk.shard;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Properties;
import java.util.Random;
import org.apache.accumulo.core.client.BatchDeleter;
import org.apache.accumulo.core.client.BatchWriterConfig;
import org.apache.accumulo.core.client.IteratorSetting;
import org.apache.accumulo.core.data.Range;
import org.apache.accumulo.core.iterators.user.RegExFilter;
import org.apache.accumulo.core.security.Authorizations;
import org.apache.accumulo.test.randomwalk.State;
import org.apache.accumulo.test.randomwalk.Test;
//a test created to test the batch deleter
public class DeleteSomeDocs extends Test {
@Override
public void visit(State state, Properties props) throws Exception {
// delete documents that where the document id matches a given pattern from doc and index table
// using the batch deleter
Random rand = (Random) state.get("rand");
String indexTableName = (String) state.get("indexTableName");
String dataTableName = (String) state.get("docTableName");
ArrayList<String> patterns = new ArrayList<String>();
for (Object key : props.keySet())
if (key instanceof String && ((String) key).startsWith("pattern"))
patterns.add(props.getProperty((String) key));
String pattern = patterns.get(rand.nextInt(patterns.size()));
BatchWriterConfig bwc = new BatchWriterConfig();
BatchDeleter ibd = state.getConnector().createBatchDeleter(indexTableName, Authorizations.EMPTY, 8, bwc);
ibd.setRanges(Collections.singletonList(new Range()));
IteratorSetting iterSettings = new IteratorSetting(100, RegExFilter.class);
RegExFilter.setRegexs(iterSettings, null, null, pattern, null, false);
ibd.addScanIterator(iterSettings);
ibd.delete();
ibd.close();
BatchDeleter dbd = state.getConnector().createBatchDeleter(dataTableName, Authorizations.EMPTY, 8, bwc);
dbd.setRanges(Collections.singletonList(new Range()));
iterSettings = new IteratorSetting(100, RegExFilter.class);
RegExFilter.setRegexs(iterSettings, pattern, null, null, null, false);
dbd.addScanIterator(iterSettings);
dbd.delete();
dbd.close();
log.debug("Deleted documents w/ id matching '" + pattern + "'");
}
}