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/*
 * Copyright (c) 2011-2015 Pivotal Software Inc, All Rights Reserved.
 *
 * 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 reactor.io.net.http;

import reactor.bus.selector.HeaderResolver;
import reactor.bus.selector.Selector;
import reactor.bus.selector.UriPathSelector;
import reactor.io.net.http.model.Method;
import reactor.io.net.http.model.Protocol;

/**
 * A Selector to match against ServerRequest
 *
 * @author Stephane Maldini
 */
public class HttpSelector implements Selector {

	final protected Protocol protocol;
	final protected Method   method;
	final protected UriPathSelector uriPathSelector;

	@SuppressWarnings("unused")
	public HttpSelector(String uri) {
		this(uri, null, null);
	}

	public HttpSelector(String uri, Protocol protocol, Method method) {
		this.protocol = protocol;
		this.method = method;
		this.uriPathSelector = uri != null && !uri.isEmpty() ? new UriPathSelector(uri) : null;
	}

	@Override
	public Object getObject() {
		return null;
	}

	@Override
	public HeaderResolver getHeaderResolver() {
		return uriPathSelector != null ? uriPathSelector.getHeaderResolver() : null;
	}

	public Protocol getProtocol() {
		return protocol;
	}

	public Method getMethod() {
		return method;
	}

	public UriPathSelector getUriPathSelector() {
		return uriPathSelector;
	}

	@Override
	public boolean matches(HttpChannel key) {
	return (protocol == null || protocol.equals(key.protocol()))
				&& (method == null || method.equals(key.method()) )
				&& (uriPathSelector == null || uriPathSelector.matches(key.uri()));
	}
}