/*
* Copyright 2016 the original author or authors.
*
* 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 demo.deploy;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.messaging.MessageHeaders;
import org.springframework.messaging.support.MessageBuilder;
import org.springframework.statemachine.StateMachine;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
@Controller
public class StateMachineController {
private final static String[] EVENTS = new String[] { "DEPLOY", "UNDEPLOY" };
private final static String[] FAILS = new String[] { "isInstalled", "installedOk", "isRunning", "hasError" };
@Autowired
private StateMachine<String, String> stateMachine;
@Autowired
private StateMachineLogListener listener;
@RequestMapping("/")
public String home() {
return "redirect:/state";
}
@RequestMapping("/state")
public String feedAndGetState(@RequestParam(value = "event", required = false) String event,
@RequestParam(value = "fail", required = false) Collection<String> fails, Model model) throws Exception {
model.addAttribute("allTypes", EVENTS);
model.addAttribute("failTypes", FAILS);
if (StringUtils.hasText(event)) {
Map<String , Object> headers = new HashMap<>();
if (fails != null) {
for (String fail : fails) {
headers.put(fail, true);
}
}
listener.resetMessages();
stateMachine.sendEvent(MessageBuilder.createMessage(event, new MessageHeaders(headers)));
}
model.addAttribute("states", stateMachine.getState().getIds());
model.addAttribute("messages", listener.getMessages());
return "states";
}
}