/** Copyright 2009, SemanticVectors AUTHORS. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. * Neither the name of Google Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. @author Yevgeniy Treyvus. **/ package pitt.search.semanticvectors.integrationtests; import java.io.File; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.logging.Logger; import org.junit.Before; import org.junit.Test; import static org.junit.Assert.*; import pitt.search.semanticvectors.BuildIndex; import pitt.search.semanticvectors.FlagConfig; import pitt.search.semanticvectors.ObjectVector; import pitt.search.semanticvectors.Search; import pitt.search.semanticvectors.SearchResult; public class ThreadSafetyTest { private static final Logger logger = Logger.getLogger(ThreadSafetyTest.class.getCanonicalName()); @Before public void setUp() { try { RunTests.prepareTestData(); } catch (IOException e) { e.printStackTrace(); fail(); } } @Test public void TestSearchThreadSafety() throws Exception { // Build termvectors and docvectors String[] buildArgs = new String[] {"-dimension", "200", "-luceneindexpath", "positional_index"}; File termFile = new File("termvectors.bin"); if (termFile.isFile()) termFile.delete(); assertFalse(termFile.isFile()); File docFile = new File("docvectors.bin"); if (docFile.isFile()) docFile.delete(); assertFalse(docFile.isFile()); BuildIndex.main(buildArgs); assertTrue(termFile.isFile()); assertTrue(docFile.isFile()); List<Thread> threads = new ArrayList<Thread>(); final String queries[] = new String[]{"jesus", "mary", "peter", "light", "word"}; final boolean[] done = new boolean[queries.length]; for(final String query : queries) { Thread t = new Thread(new Runnable(){ public void run() { try { outputSuggestions(query); done[Arrays.asList(queries).indexOf(query)] = true; } catch (Exception e) { throw new RuntimeException(e.getMessage(), e); } }}, "query: " + query); t.start(); threads.add(t); } int counter = 0; while(counter < queries.length) { for(boolean b : done) { if(b) { counter++; } } } for(Thread t : threads) { t.join(); } // Clean up files and force garbage collection of file handles. termFile.delete(); docFile.delete(); termFile = null; docFile = null; // This is a weird step: without forcing garbage collection, subsequent tests // fail on Windows filesystems, I think because the JVM thinks the files are // not released so other methods are not allowed to delete them. System.gc(); } private static void outputSuggestions(String query) throws Exception { String[] args = new String[] { "-queryvectorfile", "termvectors.bin", "-numsearchresults", "10", "-luceneindexpath", "permutation_index", query }; List<SearchResult> results = Search.runSearch(FlagConfig.getFlagConfig(args)); if (results.size() > 0) { for (SearchResult result: results) { String suggestion = ((ObjectVector)result.getObjectVector()).getObject().toString(); logger.finest("query:"+query + " suggestion:" + suggestion + " score:" + result.getScore()); } } } }