| /* |
| * |
| * * 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.core.migration.data; |
| |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.UUID; |
| |
| import org.apache.cassandra.db.marshal.BytesType; |
| import org.apache.cassandra.db.marshal.UTF8Type; |
| |
| import org.apache.usergrid.persistence.core.astyanax.MultiTennantColumnFamily; |
| import org.apache.usergrid.persistence.core.astyanax.MultiTennantColumnFamilyDefinition; |
| import org.apache.usergrid.persistence.core.astyanax.ScopedRowKey; |
| import org.apache.usergrid.persistence.core.astyanax.ScopedRowKeySerializer; |
| import org.apache.usergrid.persistence.core.astyanax.StringRowCompositeSerializer; |
| import org.apache.usergrid.persistence.model.entity.Id; |
| import org.apache.usergrid.persistence.model.entity.SimpleId; |
| |
| import com.google.inject.Inject; |
| import com.google.inject.Singleton; |
| import com.netflix.astyanax.Keyspace; |
| import com.netflix.astyanax.connectionpool.exceptions.ConnectionException; |
| import com.netflix.astyanax.connectionpool.exceptions.NotFoundException; |
| import com.netflix.astyanax.serializers.StringSerializer; |
| |
| |
| @Singleton |
| public class MigrationInfoSerializationImpl implements MigrationInfoSerialization { |
| |
| |
| /** |
| * Just a hard coded scope since we need it |
| */ |
| private static final Id STATIC_ID = |
| new SimpleId( UUID.fromString( "00000000-0000-1000-8000-000000000000" ), "status" ); |
| |
| |
| private static final ScopedRowKeySerializer<String> ROW_KEY_SER = |
| new ScopedRowKeySerializer<String>( StringRowCompositeSerializer.get() ); |
| |
| private static final StringSerializer STRING_SERIALIZER = StringSerializer.get(); |
| |
| |
| public static final MultiTennantColumnFamily<ScopedRowKey<String>, String> CF_MIGRATION_INFO = |
| new MultiTennantColumnFamily<>( "Data_Migration_Info", ROW_KEY_SER, STRING_SERIALIZER ); |
| |
| |
| private static final ScopedRowKey<String> ROW_KEY = ScopedRowKey.fromKey( STATIC_ID, "" ); |
| |
| private static final String COL_STATUS_MESSAGE = "statusMessage"; |
| |
| private static final String COLUMN_VERSION = "version"; |
| |
| private static final String COLUMN_STATUS_CODE = "statusCode"; |
| |
| private final Keyspace keyspace; |
| |
| |
| @Inject |
| public MigrationInfoSerializationImpl( final Keyspace keyspace ) { |
| this.keyspace = keyspace; |
| } |
| |
| |
| @Override |
| public void setStatusMessage( final String message ) { |
| |
| try { |
| keyspace.prepareColumnMutation( CF_MIGRATION_INFO, ROW_KEY, COL_STATUS_MESSAGE ).putValue( message, null ) |
| .execute(); |
| } |
| catch ( ConnectionException e ) { |
| throw new DataMigrationException( "Unable to save status", e ); |
| } |
| } |
| |
| |
| @Override |
| public String getStatusMessage() { |
| try { |
| return keyspace.prepareQuery( CF_MIGRATION_INFO ).getKey( ROW_KEY ).getColumn( COL_STATUS_MESSAGE ) |
| .execute().getResult().getStringValue(); |
| } |
| //swallow, it doesn't exist |
| catch ( NotFoundException nfe ) { |
| return null; |
| } |
| catch ( ConnectionException e ) { |
| throw new DataMigrationException( "Unable to retrieve status", e ); |
| } |
| } |
| |
| |
| @Override |
| public void setVersion( final int version ) { |
| try { |
| keyspace.prepareColumnMutation( CF_MIGRATION_INFO, ROW_KEY, COLUMN_VERSION ).putValue( version, null ) |
| .execute(); |
| } |
| catch ( ConnectionException e ) { |
| throw new DataMigrationException( "Unable to save status", e ); |
| } |
| } |
| |
| |
| @Override |
| public int getVersion() { |
| try { |
| return keyspace.prepareQuery( CF_MIGRATION_INFO ).getKey( ROW_KEY ).getColumn( COLUMN_VERSION ).execute() |
| .getResult().getIntegerValue(); |
| } |
| //swallow, it doesn't exist |
| catch ( NotFoundException nfe ) { |
| return 0; |
| } |
| catch ( ConnectionException e ) { |
| throw new DataMigrationException( "Unable to retrieve status", e ); |
| } |
| } |
| |
| |
| @Override |
| public void setStatusCode( final int status ) { |
| try { |
| keyspace.prepareColumnMutation( CF_MIGRATION_INFO, ROW_KEY, COLUMN_STATUS_CODE ).putValue( status, null ) |
| .execute(); |
| } |
| catch ( ConnectionException e ) { |
| throw new DataMigrationException( "Unable to save status", e ); |
| } |
| } |
| |
| |
| @Override |
| public int getStatusCode() { |
| try { |
| return keyspace.prepareQuery( CF_MIGRATION_INFO ).getKey( ROW_KEY ).getColumn( COLUMN_STATUS_CODE ) |
| .execute().getResult().getIntegerValue(); |
| } |
| //swallow, it doesn't exist |
| catch ( NotFoundException nfe ) { |
| return 0; |
| } |
| catch ( ConnectionException e ) { |
| throw new DataMigrationException( "Unable to retrieve status", e ); |
| } |
| } |
| |
| |
| @Override |
| public Collection<MultiTennantColumnFamilyDefinition> getColumnFamilies() { |
| return Collections.singletonList( |
| new MultiTennantColumnFamilyDefinition( CF_MIGRATION_INFO, BytesType.class.getSimpleName(), |
| UTF8Type.class.getSimpleName(), BytesType.class.getSimpleName(), |
| MultiTennantColumnFamilyDefinition.CacheOption.KEYS ) ); |
| } |
| } |