HelloWorldCommands.java

package org.springframework.shell.samples.helloworld.commands;

import org.springframework.shell.core.CommandMarker;
import org.springframework.shell.core.annotation.CliAvailabilityIndicator;
import org.springframework.shell.core.annotation.CliCommand;
import org.springframework.shell.core.annotation.CliOption;
import org.springframework.stereotype.Component;

@Component
public class HelloWorldCommands implements CommandMarker {
	
	private boolean simpleCommandExecuted = false;
	
	@CliAvailabilityIndicator({"hw simple"})
	public boolean isSimpleAvailable() {
		//always available
		return true;
	}
	
	@CliAvailabilityIndicator({"hw complex", "hw enum"})
	public boolean isComplexAvailable() {
		if (simpleCommandExecuted) {
			return true;
		} else {
			return false;
		}
	}
		
	@CliCommand(value = "hw simple", help = "Print a simple hello world message")
	public String simple(
		@CliOption(key = { "message" }, mandatory = true, help = "The hello world message") final String message,
		@CliOption(key = { "location" }, mandatory = false, help = "Where you are saying hello", specifiedDefaultValue="At work") final String location) {		
		simpleCommandExecuted = true;
		return "Message = [" + message + "] Location = [" + location + "]";
	}
	
	@CliCommand(value = "hw complex", help = "Print a complex hello world message (run 'hw simple' once first)")
	public String hello(
		@CliOption(key = { "message" }, mandatory = true, help = "The hello world message") final String message,
		@CliOption(key = { "name1"}, mandatory = true, help = "Say hello to the first name") final String name1,
		@CliOption(key = { "name2" }, mandatory = true, help = "Say hello to a second name") final String name2,
		@CliOption(key = { "time" }, mandatory = false, specifiedDefaultValue="now", help = "When you are saying hello") final String time,
		@CliOption(key = { "location" }, mandatory = false, help = "Where you are saying hello") final String location) {		
		return "Hello " + name1 + " and " + name2 + ". Your special message is "  + message + ". time=[" + time + "] location=[" + location + "]";
	}
	
	@CliCommand(value = "hw enum", help = "Print a simple hello world message from an enumerated value (run 'hw simple' once first)")
	public String eenum(
		@CliOption(key = { "message" }, mandatory = true, help = "The hello world message") final MessageType message){		
		return "Hello.  Your special enumerated message is " + message;
	}
	
	enum MessageType {		
		Type1("type1"),
		Type2("type2"),
		Type3("type3");
		
		private String type;
		
		private MessageType(String type){
			this.type = type;
		}
		
		public String getType(){
			return type;
		}
	}
}