added ALS header and fixed missing inteface method

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@1149532 13f79535-47bb-0310-9956-ffa450edef68

solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/DIHWriter.java

@@ -1,8 +1,20 @@
 package org.apache.solr.handler.dataimport;
-
-import java.util.Map;
-import java.util.Set;
-
+/**
+ * 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.solr.common.SolrInputDocument;
 
 /**
@@ -77,5 +89,8 @@ public interface DIHWriter {
 	 * @param context
 	 */
 	public void init(Context context) ;
+
+	//TODO add comments
+  public DebugLogger getDebugLogger();
 	
 }

solr/contrib/dataimporthandler/src/java/org/apache/solr/handler/dataimport/SolrWriter.java

@@ -163,4 +163,9 @@ public class SolrWriter implements DIHWriter {
 		/* NO-OP */		
 	}
 
+  @Override
+  public DebugLogger getDebugLogger() {
+    return debugLogger;
+  }
+
 }