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/*
* Copyright 2015 Open Networking Laboratory
*
* 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.onosproject.store.consistent.impl;
import org.onosproject.core.ApplicationId;
import org.onosproject.store.service.AsyncConsistentMap;
import org.onosproject.store.service.ConsistentMap;
import org.onosproject.store.service.ConsistentMapBuilder;
import org.onosproject.store.service.Serializer;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkState;
/**
* Default Consistent Map builder.
*
* @param <K> type for map key
* @param <V> type for map value
*/
public class DefaultConsistentMapBuilder<K, V> implements ConsistentMapBuilder<K, V> {
private Serializer serializer;
private String name;
private ApplicationId applicationId;
private boolean purgeOnUninstall = false;
private boolean partitionsEnabled = true;
private boolean readOnly = false;
private boolean metering = true;
private boolean relaxedReadConsistency = false;
private final DatabaseManager manager;
public DefaultConsistentMapBuilder(DatabaseManager manager) {
this.manager = manager;
}
@Override
public ConsistentMapBuilder<K, V> withName(String name) {
checkArgument(name != null && !name.isEmpty());
this.name = name;
return this;
}
@Override
public ConsistentMapBuilder<K, V> withApplicationId(ApplicationId id) {
checkArgument(id != null);
this.applicationId = id;
return this;
}
@Override
public ConsistentMapBuilder<K, V> withPurgeOnUninstall() {
purgeOnUninstall = true;
return this;
}
@Override
public ConsistentMapBuilder<K, V> withMeteringDisabled() {
metering = false;
return this;
}
@Override
public ConsistentMapBuilder<K, V> withSerializer(Serializer serializer) {
checkArgument(serializer != null);
this.serializer = serializer;
return this;
}
@Override
public ConsistentMapBuilder<K, V> withPartitionsDisabled() {
partitionsEnabled = false;
return this;
}
@Override
public ConsistentMapBuilder<K, V> withUpdatesDisabled() {
readOnly = true;
return this;
}
@Override
public ConsistentMapBuilder<K, V> withRelaxedReadConsistency() {
relaxedReadConsistency = true;
return this;
}
private void validateInputs() {
checkState(name != null, "name must be specified");
checkState(serializer != null, "serializer must be specified");
if (purgeOnUninstall) {
checkState(applicationId != null, "ApplicationId must be specified when purgeOnUninstall is enabled");
}
}
@Override
public ConsistentMap<K, V> build() {
return new DefaultConsistentMap<>(buildAndRegisterMap());
}
@Override
public AsyncConsistentMap<K, V> buildAsyncMap() {
return buildAndRegisterMap();
}
private DefaultAsyncConsistentMap<K, V> buildAndRegisterMap() {
validateInputs();
Database database = partitionsEnabled ? manager.partitionedDatabase : manager.inMemoryDatabase;
if (relaxedReadConsistency) {
return manager.registerMap(
new AsyncCachingConsistentMap<>(name,
applicationId,
database,
serializer,
readOnly,
purgeOnUninstall,
metering));
} else {
return manager.registerMap(
new DefaultAsyncConsistentMap<>(name,
applicationId,
database,
serializer,
readOnly,
purgeOnUninstall,
metering));
}
}
}
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