org.aktivecortex.core.store.command.JpaCommandStore Maven / Gradle / Ivy

/*
 * Copyright (C) 2012-2013. Aktive Cortex
 *
 * 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.aktivecortex.core.store.command;

import java.sql.SQLException;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.sql.DataSource;
import org.aktivecortex.api.command.Command;
import org.axonframework.eventstore.jpa.PersistenceExceptionResolver;
import org.axonframework.eventstore.jpa.SQLErrorCodesResolver;
import org.axonframework.repository.ConcurrencyException;


/**
 * @author Domenico Maria Giffone 
 *
 */
public class JpaCommandStore implements CommandStore {

	@PersistenceContext
	private EntityManager entityManager;

	private org.axonframework.serializer.Serializer commandSerializer;

	private final CommandEntryStore commandEntryStore;

	private PersistenceExceptionResolver persistenceExceptionResolver;

	public void setDataSource(DataSource dataSource) throws SQLException {
		this.persistenceExceptionResolver = new SQLErrorCodesResolver(dataSource);
	}

	public void setSerializer(org.axonframework.serializer.Serializer serializer) {
		this.commandSerializer = serializer;
	}

	/**
	 *
	 */
	protected JpaCommandStore() {
		commandEntryStore = new DefaultCommandEntryStore();
	}

	@Override
	public void addCommand(Command command) {
		try {
			commandEntryStore.persistCommand(command, commandSerializer.serialize(command), entityManager);
		} catch (RuntimeException e) {
			 if (persistenceExceptionResolver != null
	                    && persistenceExceptionResolver.isDuplicateKeyViolation(e)) {
	                throw new ConcurrencyException(
	                        String.format("Concurrent execution detected of command [%s]",
	                                      command),
	                        e);
	            }
	            throw e;
		}
	}

}