pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / backwards / src / test-framework / org / apache / lucene / search / CachingWrapperFilterHelper.java

diff --git a/lucene-java-3.5.0/lucene/backwards/src/test-framework/org/apache/lucene/search/CachingWrapperFilterHelper.java b/lucene-java-3.5.0/lucene/backwards/src/test-framework/org/apache/lucene/search/CachingWrapperFilterHelper.java
new file mode 100644 (file)
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+++ b/lucene-java-3.5.0/lucene/backwards/src/test-framework/org/apache/lucene/search/CachingWrapperFilterHelper.java
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+package org.apache.lucene.search;
+
+/**
+ * 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.io.IOException;
+
+import junit.framework.Assert;
+import org.apache.lucene.index.IndexReader;
+
+/**
+ * A unit test helper class to test when the filter is getting cached and when it is not.
+ */
+public class CachingWrapperFilterHelper extends CachingWrapperFilter {
+  
+  private boolean shouldHaveCache = false;
+
+  /**
+   * @param filter Filter to cache results of
+   */
+  public CachingWrapperFilterHelper(Filter filter) {
+    super(filter);
+  }
+  
+  public void setShouldHaveCache(boolean shouldHaveCache) {
+    this.shouldHaveCache = shouldHaveCache;
+  }
+  
+  @Override
+  public synchronized DocIdSet getDocIdSet(IndexReader reader) throws IOException {
+
+    final int saveMissCount = missCount;
+    DocIdSet docIdSet = super.getDocIdSet(reader);
+
+    if (shouldHaveCache) {
+      Assert.assertEquals("Cache should have data ", saveMissCount, missCount);
+    } else {
+      Assert.assertTrue("Cache should be null " + docIdSet, missCount > saveMissCount);
+    }
+
+    return docIdSet;
+  }
+
+  @Override
+  public String toString() {
+    return "CachingWrapperFilterHelper("+filter+")";
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (!(o instanceof CachingWrapperFilterHelper)) return false;
+    return this.filter.equals(o);
+  }
+  
+  @Override
+  public int hashCode() {
+    return this.filter.hashCode() ^ 0x5525aacb;
+  }
+}