--- /dev/null
+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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