| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. 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. For additional information regarding |
| * copyright in this work, please see the NOTICE file in the top level |
| * directory of this distribution. |
| */ |
| package org.apache.roller.weblogger.business.search.operations; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.roller.weblogger.business.search.IndexManagerImpl; |
| |
| /** |
| * @author aim4min |
| */ |
| public abstract class ReadFromIndexOperation extends IndexOperation { |
| public ReadFromIndexOperation(IndexManagerImpl mgr) { |
| super(mgr); |
| } |
| |
| private static Log mLogger = LogFactory.getFactory().getInstance( |
| ReadFromIndexOperation.class); |
| |
| public final void run() { |
| try { |
| manager.getReadWriteLock().readLock().lock(); |
| doRun(); |
| |
| } catch (Exception e) { |
| mLogger.info("Error acquiring read lock on index", e); |
| } finally { |
| manager.getReadWriteLock().readLock().unlock(); |
| } |
| } |
| |
| } |