pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / xml-query-parser / src / java / org / apache / lucene / xmlparser / builders / BooleanFilterBuilder.java

diff --git a/lucene-java-3.5.0/lucene/contrib/xml-query-parser/src/java/org/apache/lucene/xmlparser/builders/BooleanFilterBuilder.java b/lucene-java-3.5.0/lucene/contrib/xml-query-parser/src/java/org/apache/lucene/xmlparser/builders/BooleanFilterBuilder.java
new file mode 100644 (file)
index 0000000..43cf6d8
--- /dev/null
+++ b/lucene-java-3.5.0/lucene/contrib/xml-query-parser/src/java/org/apache/lucene/xmlparser/builders/BooleanFilterBuilder.java
@@ -0,0 +1,67 @@
+/*
+ * Created on 25-Jan-2006
+ */
+package org.apache.lucene.xmlparser.builders;
+
+import org.apache.lucene.search.BooleanClause;
+import org.apache.lucene.search.BooleanFilter;
+import org.apache.lucene.search.Filter;
+import org.apache.lucene.search.FilterClause;
+import org.apache.lucene.xmlparser.DOMUtils;
+import org.apache.lucene.xmlparser.FilterBuilder;
+import org.apache.lucene.xmlparser.ParserException;
+import org.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+/**
+ * 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.
+ */
+
+/**
+ * 
+ */
+public class BooleanFilterBuilder implements FilterBuilder {
+       
+       private FilterBuilder factory;
+
+       public BooleanFilterBuilder(FilterBuilder factory)
+       {
+               this.factory=factory;
+       }
+
+       public Filter getFilter(Element e) throws ParserException {
+               BooleanFilter bf=new BooleanFilter();
+               NodeList nl = e.getChildNodes();
+               
+               for(int i=0;i<nl.getLength();i++)
+               {
+                       Node node = nl.item(i);
+                       if(node.getNodeName().equals("Clause"))
+                       {
+                               Element clauseElem=(Element) node;
+                               BooleanClause.Occur occurs=BooleanQueryBuilder.getOccursValue(clauseElem);
+                       
+                               Element clauseFilter=DOMUtils.getFirstChildOrFail(clauseElem);
+                               Filter f=factory.getFilter(clauseFilter);
+                               bf.add(new FilterClause(f,occurs));
+                       }
+               }
+               
+               return bf;
+       }
+
+}