X-Git-Url: https://git.mdrn.pl/pylucene.git/blobdiff_plain/a2e61f0c04805cfcb8706176758d1283c7e3a55c..aaeed5504b982cf3545252ab528713250aa33eed:/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/payloads/TokenOffsetPayloadTokenFilter.java

diff --git a/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/payloads/TokenOffsetPayloadTokenFilter.java b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/payloads/TokenOffsetPayloadTokenFilter.java
new file mode 100644
index 0000000..24c16db
--- /dev/null
+++ b/lucene-java-3.5.0/lucene/contrib/analyzers/common/src/java/org/apache/lucene/analysis/payloads/TokenOffsetPayloadTokenFilter.java
@@ -0,0 +1,56 @@
+package org.apache.lucene.analysis.payloads;
+/**
+ * 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 org.apache.lucene.analysis.TokenFilter;
+import org.apache.lucene.analysis.TokenStream;
+import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
+import org.apache.lucene.analysis.tokenattributes.PayloadAttribute;
+import org.apache.lucene.index.Payload;
+
+
+/**
+ * Adds the {@link org.apache.lucene.analysis.Token#setStartOffset(int)}
+ * and {@link org.apache.lucene.analysis.Token#setEndOffset(int)}
+ * First 4 bytes are the start
+ *
+ **/
+public class TokenOffsetPayloadTokenFilter extends TokenFilter {
+  private final OffsetAttribute offsetAtt = addAttribute(OffsetAttribute.class);
+  private final PayloadAttribute payAtt = addAttribute(PayloadAttribute.class);
+
+  public TokenOffsetPayloadTokenFilter(TokenStream input) {
+    super(input);
+  }
+
+  @Override
+  public final boolean incrementToken() throws IOException {
+    if (input.incrementToken()) {
+      byte[] data = new byte[8];
+      PayloadHelper.encodeInt(offsetAtt.startOffset(), data, 0);
+      PayloadHelper.encodeInt(offsetAtt.endOffset(), data, 4);
+      Payload payload = new Payload(data);
+      payAtt.setPayload(payload);
+      return true;
+    } else {
+    return false;
+    }
+  }
+}
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