WebRouter.java

package me.geso.routes;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class WebRouter<T> implements Serializable {
	private static final long serialVersionUID = 1L;

	@Override
	public String toString() {
		return "WebRouter [patterns=" + getPatterns() + "]";
	}

	private final List<HttpRoute<T>> patterns;

	public WebRouter() {
		patterns = new ArrayList<>();
	}
	
	public boolean isEmpty() {
		return getPatterns().isEmpty();
	}

	/**
	 * Get the path information destination.
	 *
	 * @param method HTTP method
	 * @param path PATH_INFO
	 * @return
	 */
	public RoutingResult<T> match(final String method, final String path) {
		RoutingResult<T> routingResult = null;
		for (HttpRoute<T> route : getPatterns()) {
			RoutingResult<T> result = route.match(method, path);
			if (result != null) {
				routingResult = result;
				if (routingResult.methodAllowed()) {
					return routingResult;
				}
			}
		}
		return routingResult;
	}

	/**
	 * Register new route. It only matches GET/HEAD method.
	 *
	 * @param path
	 * @param destination
	 * @return
	 */
	public WebRouter<T> get(final String path, final T destination) {
		return addRoute(path, destination, Arrays.asList("GET", "HEAD"));
	}

	/**
	 * Register new route. It only matches POST method.
	 *
	 * @param path
	 * @param destination
	 * @return
	 */
	public WebRouter<T> post(final String path, final T destination) {
		return addRoute(path, destination, Arrays.asList("POST"));
	}

	/**
	 * Register new route.
	 * 
	 * @param path PATH_INFO
	 * @param destination Destination object
	 * @param methods HTTP methods it should be match.
	 * @return
	 */
	public WebRouter<T> addRoute(final String path, final T destination, final List<String> methods) {
		getPatterns().add(new HttpRoute<>(path, destination, methods));
		return this;
	}

	public List<HttpRoute<T>> getPatterns() {
		return patterns;
	}
}