/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.geotools.data.directory;
import java.io.IOException;
import java.util.List;
import org.geotools.data.DataStore;
import org.geotools.data.FeatureLock;
import org.geotools.data.LockingManager;
import org.geotools.data.Transaction;
/**
* Locking manager that will delegate its work to the locking managers of the
* delegate data stores
* @author Andrea Aime - OpenGeo
*
*
* @source $URL$
*/
public class DirectoryLockingManager implements LockingManager {
DirectoryTypeCache cache;
public DirectoryLockingManager(DirectoryTypeCache cache) {
this.cache = cache;
}
public boolean exists(String authID) {
List<DataStore> stores = cache.getDataStores();
for (DataStore store : stores) {
if ((store.getLockingManager() != null)
&& store.getLockingManager().exists(authID)) {
return true;
}
}
return false;
}
public boolean release(String authID, Transaction transaction)
throws IOException {
List<DataStore> stores = cache.getDataStores();
for (DataStore store : stores) {
if ((store.getLockingManager() != null)
&& store.getLockingManager().exists(authID)) {
return store.getLockingManager().release(authID, transaction);
}
}
return false;
}
public boolean refresh(String authID, Transaction transaction)
throws IOException {
List<DataStore> stores = cache.getDataStores();
for (DataStore store : stores) {
if ((store.getLockingManager() != null)
&& store.getLockingManager().exists(authID)) {
return store.getLockingManager().refresh(authID, transaction);
}
}
return false;
}
public void unLockFeatureID(String typeName, String authID,
Transaction transaction, FeatureLock featureLock)
throws IOException {
DataStore store = cache.getDataStore(typeName, false);
if ((store != null) && (store.getLockingManager() != null)) {
store.getLockingManager().unLockFeatureID(typeName, authID,
transaction, featureLock);
}
}
public void lockFeatureID(String typeName, String authID,
Transaction transaction, FeatureLock featureLock)
throws IOException {
DataStore store = cache.getDataStore(typeName, false);
if ((store != null) && (store.getLockingManager() != null)) {
store.getLockingManager().lockFeatureID(typeName, authID,
transaction, featureLock);
}
}
}