pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / src / test / org / apache / lucene / index / TestNRTReaderWithThreads.java

diff --git a/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestNRTReaderWithThreads.java b/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestNRTReaderWithThreads.java
new file mode 100644 (file)
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+++ b/lucene-java-3.5.0/lucene/src/test/org/apache/lucene/index/TestNRTReaderWithThreads.java
@@ -0,0 +1,116 @@
+package org.apache.lucene.index;
+
+/**
+ * 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.
+ */
+
+import java.util.Random;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.apache.lucene.analysis.MockAnalyzer;
+import org.apache.lucene.document.Document;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.util.LuceneTestCase;
+
+public class TestNRTReaderWithThreads extends LuceneTestCase {
+  AtomicInteger seq = new AtomicInteger(1);
+
+  public void testIndexing() throws Exception {
+    Directory mainDir = newDirectory();
+    IndexWriter writer = new IndexWriter(
+        mainDir,
+        newIndexWriterConfig(TEST_VERSION_CURRENT, new MockAnalyzer(random)).
+            setMaxBufferedDocs(10).
+            setMergePolicy(newLogMergePolicy(false,2))
+    );
+    writer.setInfoStream(VERBOSE ? System.out : null);
+    IndexReader reader = writer.getReader(); // start pooling readers
+    reader.close();
+    RunThread[] indexThreads = new RunThread[4];
+    for (int x=0; x < indexThreads.length; x++) {
+      indexThreads[x] = new RunThread(x % 2, writer);
+      indexThreads[x].setName("Thread " + x);
+      indexThreads[x].start();
+    }    
+    long startTime = System.currentTimeMillis();
+    long duration = 1000;
+    while ((System.currentTimeMillis() - startTime) < duration) {
+      Thread.sleep(100);
+    }
+    int delCount = 0;
+    int addCount = 0;
+    for (int x=0; x < indexThreads.length; x++) {
+      indexThreads[x].run = false;
+      assertNull("Exception thrown: "+indexThreads[x].ex, indexThreads[x].ex);
+      addCount += indexThreads[x].addCount;
+      delCount += indexThreads[x].delCount;
+    }
+    for (int x=0; x < indexThreads.length; x++) {
+      indexThreads[x].join();
+    }
+    for (int x=0; x < indexThreads.length; x++) {
+      assertNull("Exception thrown: "+indexThreads[x].ex, indexThreads[x].ex);
+    }
+    //System.out.println("addCount:"+addCount);
+    //System.out.println("delCount:"+delCount);
+    writer.close();
+    mainDir.close();
+  }
+
+  public class RunThread extends Thread {
+    IndexWriter writer;
+    volatile boolean run = true;
+    volatile Throwable ex;
+    int delCount = 0;
+    int addCount = 0;
+    int type;
+    final Random r = new Random(random.nextLong());
+    
+    public RunThread(int type, IndexWriter writer) {
+      this.type = type;
+      this.writer = writer;
+    }
+
+    @Override
+    public void run() {
+      try {
+        while (run) {
+          //int n = random.nextInt(2);
+          if (type == 0) {
+            int i = seq.addAndGet(1);
+            Document doc = DocHelper.createDocument(i, "index1", 10);
+            writer.addDocument(doc);
+            addCount++;
+          } else if (type == 1) {
+            // we may or may not delete because the term may not exist,
+            // however we're opening and closing the reader rapidly
+            IndexReader reader = writer.getReader();
+            int id = r.nextInt(seq.intValue());
+            Term term = new Term("id", Integer.toString(id));
+            int count = TestIndexWriterReader.count(term, reader);
+            writer.deleteDocuments(term);
+            reader.close();
+            delCount += count;
+          }
+        }
+      } catch (Throwable ex) {
+        ex.printStackTrace(System.out);
+        this.ex = ex;
+        run = false;
+      }
+    }
+  }
+}