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Posted to commits@lucene.apache.org by sh...@apache.org on 2014/09/11 18:14:56 UTC
svn commit: r1624327 - in /lucene/dev/trunk/lucene: CHANGES.txt
core/src/java/org/apache/lucene/search/spans/FilterSpans.java
core/src/test/org/apache/lucene/search/spans/TestFilterSpans.java
Author: shaie
Date: Thu Sep 11 16:14:55 2014
New Revision: 1624327
URL: http://svn.apache.org/r1624327
Log:
LUCENE-5933: add FilterSpans
Added:
lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/spans/FilterSpans.java
lucene/dev/trunk/lucene/core/src/test/org/apache/lucene/search/spans/TestFilterSpans.java
Modified:
lucene/dev/trunk/lucene/CHANGES.txt
Modified: lucene/dev/trunk/lucene/CHANGES.txt
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/CHANGES.txt?rev=1624327&r1=1624326&r2=1624327&view=diff
==============================================================================
--- lucene/dev/trunk/lucene/CHANGES.txt (original)
+++ lucene/dev/trunk/lucene/CHANGES.txt Thu Sep 11 16:14:55 2014
@@ -113,6 +113,8 @@ New Features
* LUCENE-5906: Use Files.delete everywhere instead of File.delete, so that
when things go wrong, you get a real exception message why.
(Uwe Schindler, Robert Muir)
+
+* LUCENE-5933: Added FilterSpans for easier wrapping of Spans instance. (Shai Erera)
* LUCENE-5925: Remove fallback logic from opening commits, instead use
Directory.renameFile so that in-progress commits are never visible.
Added: lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/spans/FilterSpans.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/spans/FilterSpans.java?rev=1624327&view=auto
==============================================================================
--- lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/spans/FilterSpans.java (added)
+++ lucene/dev/trunk/lucene/core/src/java/org/apache/lucene/search/spans/FilterSpans.java Thu Sep 11 16:14:55 2014
@@ -0,0 +1,82 @@
+package org.apache.lucene.search.spans;
+
+/*
+ * 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 java.util.Collection;
+
+/**
+ * A {@link Spans} implementation which allows wrapping another spans instance
+ * and override some selected methods.
+ */
+public class FilterSpans extends Spans {
+
+ /** The wrapped spans instance. */
+ protected final Spans in;
+
+ /** Wrap the given {@link Spans}. */
+ public FilterSpans(Spans in) {
+ this.in = in;
+ }
+
+ @Override
+ public boolean next() throws IOException {
+ return in.next();
+ }
+
+ @Override
+ public boolean skipTo(int target) throws IOException {
+ return in.skipTo(target);
+ }
+
+ @Override
+ public int doc() {
+ return in.doc();
+ }
+
+ @Override
+ public int start() {
+ return in.start();
+ }
+
+ @Override
+ public int end() {
+ return in.end();
+ }
+
+ @Override
+ public Collection<byte[]> getPayload() throws IOException {
+ return in.getPayload();
+ }
+
+ @Override
+ public boolean isPayloadAvailable() throws IOException {
+ return in.isPayloadAvailable();
+ }
+
+ @Override
+ public long cost() {
+ return in.cost();
+ }
+
+ @Override
+ public String toString() {
+ return "Filter(" + in.toString() + ")";
+ }
+
+}
Added: lucene/dev/trunk/lucene/core/src/test/org/apache/lucene/search/spans/TestFilterSpans.java
URL: http://svn.apache.org/viewvc/lucene/dev/trunk/lucene/core/src/test/org/apache/lucene/search/spans/TestFilterSpans.java?rev=1624327&view=auto
==============================================================================
--- lucene/dev/trunk/lucene/core/src/test/org/apache/lucene/search/spans/TestFilterSpans.java (added)
+++ lucene/dev/trunk/lucene/core/src/test/org/apache/lucene/search/spans/TestFilterSpans.java Thu Sep 11 16:14:55 2014
@@ -0,0 +1,41 @@
+package org.apache.lucene.search.spans;
+
+/*
+ * 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.lang.reflect.Method;
+import java.util.HashSet;
+import java.util.Set;
+
+import org.apache.lucene.util.LuceneTestCase;
+import org.junit.Test;
+
+public class TestFilterSpans extends LuceneTestCase {
+
+ @Test
+ public void testOverrides() throws Exception {
+ // verify that all methods of Spans are overridden by FilterSpans,
+ // except those under the 'exclude' list
+ Set<Method> exclude = new HashSet<>();
+ for (Method m : FilterSpans.class.getMethods()) {
+ if (m.getDeclaringClass() == Spans.class) {
+ assertTrue("method " + m.getName() + " not overridden!", exclude.contains(m));
+ }
+ }
+ }
+
+}