/**
* Licensed to the Austrian Association for Software Tool Integration (AASTI)
* under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. The AASTI 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.openengsb.core.edbi.jdbc;
import org.openengsb.core.edbi.jdbc.api.SchemaMapper;
import org.openengsb.core.edbi.jdbc.api.TableEngine;
import org.openengsb.core.edbi.jdbc.operation.DeleteOperation;
import org.openengsb.core.edbi.jdbc.operation.InsertOperation;
import org.openengsb.core.edbi.jdbc.operation.Operation;
import org.openengsb.core.edbi.jdbc.operation.OperationExecutor;
import org.openengsb.core.edbi.jdbc.operation.UpdateOperation;
import org.openengsb.core.edbi.jdbc.sql.Table;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Facades {@link org.openengsb.core.edbi.jdbc.HeadTableEngine} and
* {@link org.openengsb.core.edbi.jdbc.HistoryTableEngine}.
*/
public class DefaultSchemaMapper implements SchemaMapper, OperationExecutor {
private static final Logger LOG = LoggerFactory.getLogger(DefaultSchemaMapper.class);
private TableEngine headTableEngine;
private TableEngine historyTableEngine;
public DefaultSchemaMapper(TableEngine headTableEngine, TableEngine historyTableEngine) {
this.headTableEngine = headTableEngine;
this.historyTableEngine = historyTableEngine;
}
@Override
public boolean exists(JdbcIndex<?> index) {
boolean headExists = headTableEngine.exists(index);
boolean histExists = historyTableEngine.exists(index);
if (headExists ^ histExists) {
throw new IllegalStateException("Index is inconsitent. Head: " + headExists + ", history: " + histExists);
}
return headExists;
}
@Override
public void create(JdbcIndex<?> index) {
// TODO: handle inconsistency
if (exists(index)) {
LOG.debug("Skipping schema creation for {}. Schema exists.", index.getName());
return;
}
Table headTable = headTableEngine.create(index);
Table histTable = historyTableEngine.create(index);
index.setHeadTableName(headTable.getName());
index.setHistoryTableName(histTable.getName());
}
@Override
public void drop(JdbcIndex<?> index) {
if (!exists(index)) {
LOG.debug("Skipping schema drop for {}. Schema doesn't exists.", index.getName());
return;
}
headTableEngine.drop(index);
historyTableEngine.drop(index);
}
@Override
public void execute(Operation operation) {
operation.executeWith(this);
}
@Override
public void execute(InsertOperation operation) {
LOG.debug("Executing InsertOpration");
headTableEngine.execute(operation);
historyTableEngine.execute(operation);
}
@Override
public void execute(UpdateOperation operation) {
LOG.debug("Executing UpdateOperation");
headTableEngine.execute(operation);
historyTableEngine.execute(operation);
}
@Override
public void execute(DeleteOperation operation) {
LOG.debug("Executing DeleteOperation");
headTableEngine.execute(operation);
historyTableEngine.execute(operation);
}
}