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/*
* Copyright 2016 Anton Tananaev (anton@traccar.org)
* Copyright 2016 Andrey Kunitsyn (andrey@traccar.org)
*
* Licensed 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.
*/
package org.traccar.database;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;
import org.traccar.Context;
import org.traccar.helper.Log;
import org.traccar.model.AttributeAlias;
public class AliasesManager {
private final DataManager dataManager;
private final Map<Long, Set<AttributeAlias>> deviceAliases = new ConcurrentHashMap<>();
private final Map<Long, AttributeAlias> aliasesById = new ConcurrentHashMap<>();
public AliasesManager(DataManager dataManager) {
this.dataManager = dataManager;
if (dataManager != null) {
try {
for (AttributeAlias attributeAlias : dataManager.getAttributeAliases()) {
getAttributeAliases(attributeAlias.getDeviceId())
.add(attributeAlias);
aliasesById.put(attributeAlias.getId(), attributeAlias);
}
} catch (SQLException error) {
Log.warning(error);
}
}
}
public Set<AttributeAlias> getAttributeAliases(long deviceId) {
if (!deviceAliases.containsKey(deviceId)) {
deviceAliases.put(deviceId, new HashSet<AttributeAlias>());
}
return deviceAliases.get(deviceId);
}
public void removeDevice(long deviceId) {
for (AttributeAlias attributeAlias : getAttributeAliases(deviceId)) {
aliasesById.remove(attributeAlias.getId());
}
deviceAliases.remove(deviceId);
}
public void addAttributeAlias(AttributeAlias attributeAlias) throws SQLException {
dataManager.addAttributeAlias(attributeAlias);
aliasesById.put(attributeAlias.getId(), attributeAlias);
getAttributeAliases(attributeAlias.getDeviceId()).add(attributeAlias);
}
public void updateAttributeAlias(AttributeAlias attributeAlias) throws SQLException {
dataManager.updateAttributeAlias(attributeAlias);
AttributeAlias cachedAlias = aliasesById.get(attributeAlias.getId());
if (cachedAlias.getDeviceId() != attributeAlias.getDeviceId()) {
getAttributeAliases(cachedAlias.getDeviceId()).remove(cachedAlias);
cachedAlias.setDeviceId(attributeAlias.getDeviceId());
getAttributeAliases(cachedAlias.getDeviceId()).add(cachedAlias);
}
cachedAlias.setAttribute(attributeAlias.getAttribute());
cachedAlias.setAlias(attributeAlias.getAlias());
}
public void removeArrtibuteAlias(long attributeAliasId) throws SQLException {
dataManager.removeAttributeAlias(attributeAliasId);
AttributeAlias cachedAlias = aliasesById.get(attributeAliasId);
getAttributeAliases(cachedAlias.getDeviceId()).remove(cachedAlias);
aliasesById.remove(attributeAliasId);
}
public AttributeAlias getAttributeAlias(long deviceId, String attribute) {
for (AttributeAlias alias : getAttributeAliases(deviceId)) {
if (alias.getAttribute().equals(attribute)) {
return alias;
}
}
return null;
}
public Collection<AttributeAlias> getAllAttributeAliases(long userId) {
Collection<AttributeAlias> userDevicesAliases = new ArrayList<>();
for (long deviceId : Context.getPermissionsManager().getDevicePermissions(userId)) {
userDevicesAliases.addAll(getAttributeAliases(deviceId));
}
return userDevicesAliases;
}
public AttributeAlias getAttributeAlias(long id) {
return aliasesById.get(id);
}
}
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