| /* |
| * 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.testing.core.randomwalk.shard; |
| |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Map.Entry; |
| import java.util.Properties; |
| import java.util.Random; |
| |
| import org.apache.accumulo.core.client.BatchScanner; |
| import org.apache.accumulo.core.client.IteratorSetting; |
| import org.apache.accumulo.core.client.Scanner; |
| import org.apache.accumulo.core.data.Key; |
| import org.apache.accumulo.core.data.Range; |
| import org.apache.accumulo.core.data.Value; |
| import org.apache.accumulo.core.iterators.user.IntersectingIterator; |
| import org.apache.accumulo.core.security.Authorizations; |
| import org.apache.accumulo.testing.core.randomwalk.RandWalkEnv; |
| import org.apache.accumulo.testing.core.randomwalk.State; |
| import org.apache.accumulo.testing.core.randomwalk.Test; |
| import org.apache.hadoop.io.Text; |
| |
| public class Search extends Test { |
| |
| @Override |
| public void visit(State state, RandWalkEnv env, Properties props) throws Exception { |
| String indexTableName = (String) state.get("indexTableName"); |
| String dataTableName = (String) state.get("docTableName"); |
| |
| Random rand = (Random) state.get("rand"); |
| |
| Entry<Key,Value> entry = findRandomDocument(state, env, dataTableName, rand); |
| if (entry == null) |
| return; |
| |
| Text docID = entry.getKey().getRow(); |
| String doc = entry.getValue().toString(); |
| |
| String[] tokens = doc.split("\\W+"); |
| int numSearchTerms = rand.nextInt(6); |
| if (numSearchTerms < 2) |
| numSearchTerms = 2; |
| |
| HashSet<String> searchTerms = new HashSet<>(); |
| while (searchTerms.size() < numSearchTerms) |
| searchTerms.add(tokens[rand.nextInt(tokens.length)]); |
| |
| Text columns[] = new Text[searchTerms.size()]; |
| int index = 0; |
| for (String term : searchTerms) { |
| columns[index++] = new Text(term); |
| } |
| |
| log.debug("Looking up terms " + searchTerms + " expect to find " + docID); |
| |
| BatchScanner bs = env.getAccumuloConnector().createBatchScanner(indexTableName, Authorizations.EMPTY, 10); |
| IteratorSetting ii = new IteratorSetting(20, "ii", IntersectingIterator.class); |
| IntersectingIterator.setColumnFamilies(ii, columns); |
| bs.addScanIterator(ii); |
| bs.setRanges(Collections.singleton(new Range())); |
| |
| boolean sawDocID = false; |
| |
| for (Entry<Key,Value> entry2 : bs) { |
| if (entry2.getKey().getColumnQualifier().equals(docID)) { |
| sawDocID = true; |
| break; |
| } |
| } |
| |
| bs.close(); |
| |
| if (!sawDocID) |
| throw new Exception("Did not see doc " + docID + " in index. terms:" + searchTerms + " " + indexTableName + " " + dataTableName); |
| } |
| |
| static Entry<Key,Value> findRandomDocument(State state, RandWalkEnv env, String dataTableName, Random rand) throws Exception { |
| Scanner scanner = env.getAccumuloConnector().createScanner(dataTableName, Authorizations.EMPTY); |
| scanner.setBatchSize(1); |
| scanner.setRange(new Range(Integer.toString(rand.nextInt(0xfffffff), 16), null)); |
| |
| Iterator<Entry<Key,Value>> iter = scanner.iterator(); |
| if (!iter.hasNext()) |
| return null; |
| |
| return iter.next(); |
| } |
| |
| } |