pylucene 3.5.0-3

[pylucene.git] / lucene-java-3.5.0 / lucene / contrib / queryparser / src / java / org / apache / lucene / queryParser / standard / config / NumericFieldConfigListener.java

diff --git a/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/config/NumericFieldConfigListener.java b/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/config/NumericFieldConfigListener.java
new file mode 100644 (file)
index 0000000..82d6533
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+++ b/lucene-java-3.5.0/lucene/contrib/queryparser/src/java/org/apache/lucene/queryParser/standard/config/NumericFieldConfigListener.java
@@ -0,0 +1,73 @@
+package org.apache.lucene.queryParser.standard.config;
+
+/**
+ * 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.util.Map;
+
+import org.apache.lucene.queryParser.core.config.FieldConfig;
+import org.apache.lucene.queryParser.core.config.FieldConfigListener;
+import org.apache.lucene.queryParser.core.config.QueryConfigHandler;
+import org.apache.lucene.queryParser.standard.config.StandardQueryConfigHandler.ConfigurationKeys;
+
+/**
+ * This listener is used to listen to {@link FieldConfig} requests in
+ * {@link QueryConfigHandler} and add {@link ConfigurationKeys#NUMERIC_CONFIG}
+ * based on the {@link ConfigurationKeys#NUMERIC_CONFIG_MAP} set in the
+ * {@link QueryConfigHandler}.
+ * 
+ * @see NumericConfig
+ * @see QueryConfigHandler
+ * @see ConfigurationKeys#NUMERIC_CONFIG
+ * @see ConfigurationKeys#NUMERIC_CONFIG_MAP
+ */
+public class NumericFieldConfigListener implements FieldConfigListener {
+  
+  final private QueryConfigHandler config;
+  
+  /**
+   * Construcs a {@link NumericFieldConfigListener} object using the given {@link QueryConfigHandler}.
+   * 
+   * @param config the {@link QueryConfigHandler} it will listen too
+   */
+  public NumericFieldConfigListener(QueryConfigHandler config) {
+    
+    if (config == null) {
+      throw new IllegalArgumentException("config cannot be null!");
+    }
+    
+    this.config = config;
+    
+  }
+  
+  public void buildFieldConfig(FieldConfig fieldConfig) {
+    Map<String,NumericConfig> numericConfigMap = config
+        .get(ConfigurationKeys.NUMERIC_CONFIG_MAP);
+    
+    if (numericConfigMap != null) {
+      NumericConfig numericConfig = numericConfigMap
+          .get(fieldConfig.getField());
+      
+      if (numericConfig != null) {
+        fieldConfig.set(ConfigurationKeys.NUMERIC_CONFIG, numericConfig);
+      }
+      
+    }
+    
+  }
+  
+}