pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / benchmark / src / java / org / apache / lucene / benchmark / byTask / feeds / TrecFR94Parser.java

diff --git a/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/feeds/TrecFR94Parser.java b/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/feeds/TrecFR94Parser.java
new file mode 100644 (file)
index 0000000..a129825
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+++ b/lucene-java-3.5.0/lucene/contrib/benchmark/src/java/org/apache/lucene/benchmark/byTask/feeds/TrecFR94Parser.java
@@ -0,0 +1,66 @@
+package org.apache.lucene.benchmark.byTask.feeds;
+
+/**
+ * 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.Date;
+
+/**
+ * Parser for the FR94 docs in trec disks 4+5 collection format
+ */
+public class TrecFR94Parser extends TrecDocParser {
+
+  private static final String TEXT = "<TEXT>";
+  private static final int TEXT_LENGTH = TEXT.length();
+  private static final String TEXT_END = "</TEXT>";
+  
+  private static final String DATE = "<DATE>";
+  private static final String[] DATE_NOISE_PREFIXES = {
+    "DATE:",
+    "date:", //TODO improve date extraction for this format
+    "t.c.",
+  };
+  private static final String DATE_END = "</DATE>";
+  
+  //TODO can we also extract title for this format?
+  
+  @Override
+  public DocData parse(DocData docData, String name, TrecContentSource trecSrc, 
+      StringBuilder docBuf, ParsePathType pathType) throws IOException, InterruptedException {
+    int mark = 0; // that much is skipped
+    // optionally skip some of the text, set date (no title?)
+    Date date = null;
+    int h1 = docBuf.indexOf(TEXT);
+    if (h1>=0) {
+      int h2 = docBuf.indexOf(TEXT_END,h1);
+      mark = h1+TEXT_LENGTH;
+      // date...
+      String dateStr = extract(docBuf, DATE, DATE_END, h2, DATE_NOISE_PREFIXES);
+      if (dateStr != null) {
+        dateStr = stripTags(dateStr,0).toString();
+        date = trecSrc.parseDate(dateStr.trim());
+      }
+    }
+    docData.clear();
+    docData.setName(name);
+    docData.setDate(date);
+    docData.setBody(stripTags(docBuf, mark).toString());
+    return docData;
+  }
+
+}