| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. 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. |
| */ |
| |
| package org.apache.usergrid.persistence.collection.serialization.impl; |
| |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Iterator; |
| |
| import org.apache.usergrid.persistence.collection.serialization.UniqueValue; |
| import org.apache.usergrid.persistence.collection.serialization.UniqueValueSerializationStrategy; |
| import org.apache.usergrid.persistence.collection.serialization.UniqueValueSet; |
| import org.apache.usergrid.persistence.collection.serialization.impl.migration.CollectionMigrationPlugin; |
| import org.apache.usergrid.persistence.core.astyanax.MultiTenantColumnFamilyDefinition; |
| import org.apache.usergrid.persistence.core.migration.data.MigrationInfoCache; |
| import org.apache.usergrid.persistence.core.migration.data.MigrationRelationship; |
| import org.apache.usergrid.persistence.core.migration.data.VersionedMigrationSet; |
| import org.apache.usergrid.persistence.core.scope.ApplicationScope; |
| import org.apache.usergrid.persistence.model.entity.Id; |
| import org.apache.usergrid.persistence.model.field.Field; |
| |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import com.netflix.astyanax.Keyspace; |
| import com.netflix.astyanax.MutationBatch; |
| import com.netflix.astyanax.connectionpool.exceptions.ConnectionException; |
| import com.netflix.astyanax.model.ConsistencyLevel; |
| |
| |
| @Singleton |
| public class UniqueValueSerializationStrategyProxyImpl implements UniqueValueSerializationStrategy { |
| |
| |
| protected final Keyspace keyspace; |
| private final VersionedMigrationSet<UniqueValueSerializationStrategy> versions; |
| private final MigrationInfoCache migrationInfoCache; |
| |
| |
| @Inject |
| public UniqueValueSerializationStrategyProxyImpl( final Keyspace keyspace, |
| final VersionedMigrationSet<UniqueValueSerializationStrategy> |
| allVersions, |
| final MigrationInfoCache migrationInfoCache ) { |
| |
| this.keyspace = keyspace; |
| this.migrationInfoCache = migrationInfoCache; |
| this.versions = allVersions; |
| } |
| |
| |
| @Override |
| public MutationBatch write( final ApplicationScope applicationScope, final UniqueValue uniqueValue ) { |
| final MigrationRelationship<UniqueValueSerializationStrategy> migration = getMigrationRelationShip(); |
| |
| if ( migration.needsMigration() ) { |
| final MutationBatch aggregateBatch = keyspace.prepareMutationBatch(); |
| |
| aggregateBatch.mergeShallow( migration.from.write( applicationScope, uniqueValue ) ); |
| aggregateBatch.mergeShallow( migration.to.write( applicationScope, uniqueValue ) ); |
| |
| return aggregateBatch; |
| } |
| |
| return migration.to.write( applicationScope, uniqueValue ); |
| } |
| |
| |
| @Override |
| public MutationBatch write( final ApplicationScope applicationScope, final UniqueValue uniqueValue, |
| final int timeToLive ) { |
| final MigrationRelationship<UniqueValueSerializationStrategy> migration = getMigrationRelationShip(); |
| |
| if ( migration.needsMigration() ) { |
| final MutationBatch aggregateBatch = keyspace.prepareMutationBatch(); |
| |
| aggregateBatch.mergeShallow( migration.from.write( applicationScope, uniqueValue, timeToLive ) ); |
| aggregateBatch.mergeShallow( migration.to.write( applicationScope, uniqueValue, timeToLive ) ); |
| |
| return aggregateBatch; |
| } |
| |
| return migration.to.write( applicationScope, uniqueValue, timeToLive ); |
| } |
| |
| |
| @Override |
| public UniqueValueSet load( final ApplicationScope applicationScope, final String type, |
| final Collection<Field> fields ) throws ConnectionException { |
| |
| final MigrationRelationship<UniqueValueSerializationStrategy> migration = getMigrationRelationShip(); |
| |
| if ( migration.needsMigration() ) { |
| return migration.from.load( applicationScope, type, fields ); |
| } |
| |
| return migration.to.load( applicationScope, type, fields ); |
| } |
| |
| @Override |
| public UniqueValueSet load( final ApplicationScope applicationScope, final String type, |
| final Collection<Field> fields, boolean useReadRepair ) throws ConnectionException { |
| |
| final MigrationRelationship<UniqueValueSerializationStrategy> migration = getMigrationRelationShip(); |
| |
| if ( migration.needsMigration() ) { |
| return migration.from.load( applicationScope, type, fields, useReadRepair ); |
| } |
| |
| return migration.to.load( applicationScope, type, fields, useReadRepair ); |
| } |
| |
| |
| @Override |
| public UniqueValueSet load(final ApplicationScope applicationScope, final ConsistencyLevel consistencyLevel, |
| final String type, final Collection<Field> fields, boolean useReadRepair) throws ConnectionException { |
| |
| final MigrationRelationship<UniqueValueSerializationStrategy> migration = getMigrationRelationShip(); |
| |
| if ( migration.needsMigration() ) { |
| return migration.from.load( applicationScope, consistencyLevel, type, fields, useReadRepair ); |
| } |
| |
| return migration.to.load( applicationScope, consistencyLevel, type, fields, useReadRepair ); |
| } |
| |
| |
| @Override |
| public Iterator<UniqueValue> getAllUniqueFields( final ApplicationScope applicationScope, final Id entityId ) { |
| final MigrationRelationship<UniqueValueSerializationStrategy> migration = getMigrationRelationShip(); |
| |
| if ( migration.needsMigration() ) { |
| return migration.from.getAllUniqueFields( applicationScope, entityId ); |
| } |
| |
| return migration.to.getAllUniqueFields( applicationScope, entityId ); |
| } |
| |
| |
| @Override |
| public MutationBatch delete( final ApplicationScope applicationScope, final UniqueValue uniqueValue ) { |
| final MigrationRelationship<UniqueValueSerializationStrategy> migration = getMigrationRelationShip(); |
| |
| if ( migration.needsMigration() ) { |
| final MutationBatch aggregateBatch = keyspace.prepareMutationBatch(); |
| |
| aggregateBatch.mergeShallow( migration.from.delete( applicationScope, uniqueValue ) ); |
| aggregateBatch.mergeShallow( migration.to.delete( applicationScope, uniqueValue ) ); |
| |
| return aggregateBatch; |
| } |
| |
| return migration.to.delete( applicationScope, uniqueValue ); |
| } |
| |
| |
| /** |
| * Return true if we're on an old version |
| */ |
| private MigrationRelationship<UniqueValueSerializationStrategy> getMigrationRelationShip() { |
| return this.versions |
| .getMigrationRelationship( migrationInfoCache.getVersion( CollectionMigrationPlugin.PLUGIN_NAME ) ); |
| } |
| |
| |
| @Override |
| public Collection<MultiTenantColumnFamilyDefinition> getColumnFamilies() { |
| return Collections.emptyList(); |
| } |
| |
| |
| @Override |
| public int getImplementationVersion() { |
| throw new UnsupportedOperationException( "Not supported in the proxy" ); |
| } |
| } |