01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. The ASF licenses this file to You
04: * under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License. For additional information regarding
15: * copyright in this work, please see the NOTICE file in the top level
16: * directory of this distribution.
17: */
18: /* Created on Aug 12, 2003 */
19: package org.apache.roller.business.search.operations;
20:
21: import org.apache.commons.logging.Log;
22: import org.apache.commons.logging.LogFactory;
23: import org.apache.roller.business.search.IndexManagerImpl;
24:
25: /**
26: * An operation that writes to index.
27: * @author Mindaugas Idzelis (min@idzelis.com)
28: */
29: public abstract class WriteToIndexOperation extends IndexOperation {
30:
31: public WriteToIndexOperation(IndexManagerImpl mgr) {
32: super (mgr);
33: }
34:
35: private static Log mLogger = LogFactory.getFactory().getInstance(
36: WriteToIndexOperation.class);
37:
38: public void run() {
39: try {
40: manager.getReadWriteLock().writeLock().acquire();
41: mLogger.debug("Starting search index operation");
42: doRun();
43: mLogger.debug("Search index operation complete");
44: } catch (InterruptedException e) {
45: mLogger.error("Error acquiring write lock on index", e);
46: } finally {
47: manager.getReadWriteLock().writeLock().release();
48: }
49: manager.resetSharedReader();
50: }
51: }
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