/*
* Copyright (c) 2010-2014. Axon Framework
*
* 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.axonframework.quickstart;
import org.apache.commons.io.FileUtils;
import org.axonframework.common.io.IOUtils;
import org.axonframework.domain.DomainEventStream;
import org.axonframework.domain.GenericDomainEventMessage;
import org.axonframework.domain.SimpleDomainEventStream;
import org.axonframework.eventstore.EventStore;
import org.axonframework.quickstart.api.ToDoItemCompletedEvent;
import org.axonframework.quickstart.api.ToDoItemCreatedEvent;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import java.io.File;
import java.io.IOException;
/**
* @author Allard Buijze
*/
public class RunUpcasterWithSpring {
public static void main(String[] args) throws IOException {
// we want to delete the directory that will store our events
FileUtils.deleteDirectory(new File(System.getProperty("java.io.tmpdir"), "Events"));
// we start the application context
ClassPathXmlApplicationContext applicationContext = new ClassPathXmlApplicationContext("upcaster-config.xml");
// we fetch the EventStore from the application context
EventStore eventStore = applicationContext.getBean(EventStore.class);
// we append some events. Notice we append a "ToDoItemCreatedEvent".
eventStore.appendEvents("UpcasterSample", new SimpleDomainEventStream(
new GenericDomainEventMessage("todo1", 0, new ToDoItemCreatedEvent("todo1", "I need to do this today")),
new GenericDomainEventMessage("todo1", 1, new ToDoItemCompletedEvent("todo1"))
));
eventStore.appendEvents("UpcasterSample", new SimpleDomainEventStream(
new GenericDomainEventMessage("todo2", 0, new ToDoItemCreatedEvent("todo2", "I also need to do this"))
));
// now, we read the events from the "todo1" stream
DomainEventStream upcastEvents = eventStore.readEvents("UpcasterSample", "todo1");
while (upcastEvents.hasNext()) {
// and print them, so that we can see what we ended up with
System.out.println(upcastEvents.next().getPayload().toString());
}
IOUtils.closeQuietlyIfCloseable(upcastEvents);
// to see the Upcaster doing the upcasting, see RunUpcaster, inner class ToDoItemUpcaster
// we close the application context. It's just good habit
applicationContext.close();
}
}