io.github.flowersinthesand.wes.atmosphere.AtmosphereServerWebSocket Maven / Gradle / Ivy

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/*
 * Copyright 2013-2014 Donghwan Kim
 *
 * 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 io.github.flowersinthesand.wes.atmosphere;

import io.github.flowersinthesand.wes.AbstractServerWebSocket;
import io.github.flowersinthesand.wes.Data;
import io.github.flowersinthesand.wes.ServerWebSocket;

import java.io.IOException;
import java.io.PrintWriter;

import org.atmosphere.cpr.AtmosphereResource;
import org.atmosphere.cpr.AtmosphereResourceEvent;
import org.atmosphere.websocket.WebSocketEventListenerAdapter;

/**
 * {@link ServerWebSocket} for Atmosphere 2.
 * 
 * @author Donghwan Kim
 */
public class AtmosphereServerWebSocket extends AbstractServerWebSocket {

	private final AtmosphereResource resource;

	public AtmosphereServerWebSocket(AtmosphereResource resource) {
		this.resource = resource;
		resource.addEventListener(new WebSocketEventListenerAdapter() {
			@SuppressWarnings("rawtypes")
			@Override
			public void onMessage(WebSocketEvent event) {
				messageActions.fire(new Data(event.message().toString()));
			}

			@SuppressWarnings("rawtypes")
			@Override
			public void onClose(WebSocketEvent event) {
				closeActions.fire();
			}

			@SuppressWarnings("rawtypes")
			@Override
			public void onDisconnect(WebSocketEvent event) {
				closeActions.fire();
			}

			@Override
			public void onThrowable(AtmosphereResourceEvent event) {
				errorActions.fire(event.throwable());
			}
		});
	}

	@Override
	public String uri() {
		String uri = resource.getRequest().getRequestURI();
		if (resource.getRequest().getQueryString() != null) {
			uri += "?" + resource.getRequest().getQueryString();
		}
		return uri;
	}
	
	@Override
	protected void doSend(String data) {
		try {
			PrintWriter writer = resource.getResponse().getWriter();
			writer.print(data);
			writer.flush();
		} catch (IOException e) {
			throw new RuntimeException(e);
		}
	}

	@Override
	protected void doClose() {
		resource.resume();
		try {
			resource.close();
		} catch (IOException e) {}
	}

	@Override
	public  T unwrap(Class clazz) {
		return AtmosphereResource.class.isAssignableFrom(clazz) ? clazz.cast(resource) : null;
	}

}