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package com.example.demo;

import java.util.ArrayList;
import java.util.List;
import java.util.UUID;
import java.util.stream.Collectors;

public class Binder {
	
	private static List<ProcessInstance> instances = new ArrayList<>();
	private static List<ProcessDefinition> definitions = new ArrayList<>();
	private static List<ProjectResource> resources = new ArrayList<>();

	private static String theProjectName = "THEPROJECT";
	private static String channel = "CHANNEL";
	private static String workline = "WL";

	public void setup(){
		
		
		definitions.add(new ProcessDefinition("foo"));
		definitions.add(new ProcessDefinition("bar"));
		definitions.add(new ProcessDefinition("baz"));
		definitions.add(new ProcessDefinition("a123-THEPROJECT-CHANNEL-WL"));

		
		for (ProcessDefinition def : definitions) {
			ProcessInstance instance = new ProcessInstance();
			instance.setId(UUID.randomUUID().toString());
			instance.setDefinitionId(def.getId());
			instances.add(instance);
			
			if(def.getKey().equals("a123-THEPROJECT-CHANNEL-WL")){
				System.out.println("Correct instance to retrieve has id " + instance.getId());
			}
		}
	}
	
	public static void main(String[] args) {
		
		Binder bind = new Binder();
		bind.setup();
		
		String identifier = theProjectName + "-" + channel + "-" + workline;
		
		List<String> matchingDefs = definitions.stream().filter(d -> d.getKey().endsWith(identifier)).map(d -> d.getId()).collect(Collectors.toList());
		List<ProcessInstance> matchingInst = instances.stream().filter(i -> matchingDefs.contains(i.getDefinitionId())).collect(Collectors.toList());
		
		for (ProcessInstance processInstance : matchingInst) {
			System.out.println("Retrieved instance " + processInstance.getId() + " with def id: " + processInstance.getDefinitionId());
		}
	}
	
}