SOLR-2670: add NIOFSDirectoryFactory

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1149740 13f79535-47bb-0310-9956-ffa450edef68

solr/CHANGES.txt

@@ -320,6 +320,8 @@ New Features
 * SOLR-2584: add UniqFieldsUpdateProcessor that removes duplicate values in the
   specified fields. (Elmer Garduno, koji)
 
+* SOLR-2670: Added NIOFSDirectoryFactory (yonik)
+
 Optimizations
 ----------------------
 

solr/core/src/java/org/apache/solr/core/NIOFSDirectoryFactory.java

@@ -0,0 +1,36 @@
+package org.apache.solr.core;
+/**
+ * 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 org.apache.lucene.store.Directory;
+import org.apache.lucene.store.NIOFSDirectory;
+
+import java.io.File;
+import java.io.IOException;
+
+
+/**
+ * Factory to instantiate {@link org.apache.lucene.store.NIOFSDirectory}
+ *
+ **/
+public class NIOFSDirectoryFactory extends DirectoryFactory {
+
+  @Override
+  public Directory open(String path) throws IOException {
+    return new NIOFSDirectory(new File(path));
+  }
+}

solr/example/solr/conf/solrconfig.xml

@@ -87,7 +87,12 @@
   <!-- The DirectoryFactory to use for indexes.
        
        solr.StandardDirectoryFactory, the default, is filesystem
-       based.  solr.RAMDirectoryFactory is memory based, not
+       based and tries to pick the best implementation for the current
+       JVM and platform.  One can force a particular implementation
+       via solr.MMapDirectoryFactory, solr.NIOFSDirectoryFactory, or
+       solr.SimpleFSDirectoryFactory.
+
+       solr.RAMDirectoryFactory is memory based, not
        persistent, and doesn't work with replication.
     -->
   <directoryFactory name="DirectoryFactory"