com.day.cq.mcm.api.MCMPluginAdapter Maven / Gradle / Ivy

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 *  Copyright 2011 Adobe Systems Incorporated
 *  All Rights Reserved.
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 * NOTICE:  All information contained herein is, and remains
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package com.day.cq.mcm.api;

import java.util.Collection;
import java.util.HashMap;

import org.apache.sling.api.resource.Resource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.day.cq.mcm.util.NormalizedResource;

/**
 * Helps when implementing {@link MCMPlugin}.
 * Provides the root component functionality with a list of components manageable
 * via {@link #addExperienceComponent(String, Factory)} and {@link #addTouchpointComponent(String, Factory)}. 
 * You can also add only one (Experience or touchpoint), or many.
 */
public abstract class MCMPluginAdapter implements MCMPlugin {

	private final static Logger log = LoggerFactory.getLogger(MCMPluginAdapter.class);
	
	public static interface Factory {
		public T create(Resource r);
	}
	
	private HashMap> experienceFactoryMap = new HashMap>();
	
	private HashMap> touchpointFactoryMap = new HashMap>();
	
	public MCMPluginAdapter() {
		super();
	}
	
	/**
	 * Returns the comptypes that were registered with {@link #addTouchpointComponent(String, Factory)}. 
	 */
	public Collection getTouchpointRootComponents() {
		return touchpointFactoryMap.keySet();
	}
	
	/**
	 * Returns the comptypes that were registered with {@link #addExperienceComponent(String, Factory)}.
	 */
	public Collection getExperienceRootComponents() {
		return experienceFactoryMap.keySet();
	}
	
	/**
	 * Use this to add your types to the adapter.
	 * @param compType
	 * @param fac
	 */
	protected void addExperienceComponent(String compType, Factory fac) {
		if (fac == null) {
			throw new NullPointerException("Factory null");
		}
		experienceFactoryMap.put(compType, fac);
	}
	
	/**
	 * Use this to add your types to the adapter.
	 * @param compType
	 * @param fac
	 */
	protected void addTouchpointComponent(String compType, Factory fac) {
		if (fac == null) {
			throw new NullPointerException("Factory null");
		}
		touchpointFactoryMap.put(compType, fac);
	}

	public Experience makeExperience(Resource adaptable) {
		Experience retval = null;
		String compTypeToSearch = extractCompType(adaptable);
		if (compTypeToSearch == null) {
			throw new RuntimeException("Given resource doesn't have a resource type: " 
					+ adaptable.getPath());
		}
		if (experienceFactoryMap.containsKey(compTypeToSearch)) {
			Factory fac = experienceFactoryMap.get(compTypeToSearch);
			retval = fac.create(adaptable);
		} else {
			throw new RuntimeException("Unkown resourceType (misuse of the the class? We have: "
					+ experienceFactoryMap.toString() + "): " 
					+ compTypeToSearch);
		}
		return retval;
	}

	public Touchpoint makeTouchpoint(Resource adaptable) {
		if (adaptable == null) {
			throw new NullPointerException("Null passed as Resource adaptable.");
		}
		
		Touchpoint retval = null;
		String compTypeToSearch = extractCompType(adaptable);
		if (compTypeToSearch == null) {
			throw new RuntimeException("Given resource doesn't have a resource type: " 
					+ adaptable.getPath());
		}
		if (touchpointFactoryMap.containsKey(compTypeToSearch)) {
			Factory fac = touchpointFactoryMap.get(compTypeToSearch);
			retval = fac.create(adaptable);
		} else {
			throw new RuntimeException("Unkown resourceType (misuse of the the class? We have: "
					+ touchpointFactoryMap.toString() + "): " 
					+ compTypeToSearch);
		}
		return retval;
	}

	private String extractCompType(Resource adaptable) {
		NormalizedResource nr = new NormalizedResource();
		nr.setResource(adaptable);
		String retval = null;
		if (nr.getContentVals() != null) {
			retval = nr.getContentVals().get("sling:resourceType", String.class);
		}
		if (retval == null) {
			log.warn("Cannot make an object because resource {} doesn't have content node or resourceType.", adaptable);
		}
		return retval;
	}
	
	@Override
	public String toString() {
		return super.toString() + "/id:" + getPluginId();
	}
}