/*
* Copyright 2015 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;
import java.util.Iterator;
import java.util.Map.Entry;
import java.util.Set;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.shell.core.CommandMarker;
import org.springframework.shell.core.annotation.CliCommand;
import org.springframework.statemachine.StateMachine;
import org.springframework.statemachine.state.State;
import org.springframework.stereotype.Component;
import org.springframework.util.StringUtils;
@Component
public class AbstractStateMachineCommands<S, E> implements CommandMarker {
@Autowired
private StateMachine<S, E> stateMachine;
protected StateMachine<S, E> getStateMachine() {
return stateMachine;
}
@Autowired
@Qualifier("stateChartModel")
private String stateChartModel;
@CliCommand(value = "sm state", help = "Prints current state")
public String state() {
State<S, E> state = stateMachine.getState();
if (state != null) {
return StringUtils.collectionToCommaDelimitedString(state.getIds());
} else {
return "No state";
}
}
@CliCommand(value = "sm start", help = "Start a state machine")
public String start() {
stateMachine.start();
return "State machine started";
}
@CliCommand(value = "sm stop", help = "Stop a state machine")
public String stop() {
stateMachine.stop();
return "State machine stopped";
}
@CliCommand(value = "sm print", help = "Print state machine")
public String print() {
return stateChartModel;
}
@CliCommand(value = "sm variables", help = "Prints extended state variables")
public String variables() {
StringBuilder buf = new StringBuilder();
Set<Entry<Object, Object>> entrySet = stateMachine.getExtendedState().getVariables().entrySet();
Iterator<Entry<Object, Object>> iterator = entrySet.iterator();
if (entrySet.size() > 0) {
while (iterator.hasNext()) {
Entry<Object, Object> e = iterator.next();
buf.append(e.getKey() + "=" + e.getValue());
if (iterator.hasNext()) {
buf.append("\n");
}
}
} else {
buf.append("No variables");
}
return buf.toString();
}
}