/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.activemq.transport.http;

import org.apache.activemq.command.BrokerInfo;
import org.apache.activemq.transport.SocketConnectorFactory;
import org.apache.activemq.transport.TransportServerSupport;
import org.apache.activemq.transport.WebTransportServerSupport;
import org.apache.activemq.transport.util.TextWireFormat;
import org.apache.activemq.transport.xstream.XStreamWireFormat;
import org.apache.activemq.util.ServiceStopper;
import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.GzipHandler;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;

import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.URI;
import java.util.Map;

public class HttpTransportServer extends WebTransportServerSupport {

    private TextWireFormat wireFormat;
    private HttpTransportFactory transportFactory;

    public HttpTransportServer(URI uri, HttpTransportFactory factory) {
        super(uri);
        this.bindAddress = uri;
        this.transportFactory = factory;
        socketConnectorFactory = new SocketConnectorFactory();
    }

    public void setBrokerInfo(BrokerInfo brokerInfo) {
    }

    // Properties
    // -------------------------------------------------------------------------
    public TextWireFormat getWireFormat() {
        if (wireFormat == null) {
            wireFormat = createWireFormat();
        }
        return wireFormat;
    }

    public void setWireFormat(TextWireFormat wireFormat) {
        this.wireFormat = wireFormat;
    }

    // Implementation methods
    // -------------------------------------------------------------------------
    protected TextWireFormat createWireFormat() {
        return new XStreamWireFormat();
    }

    protected void setConnector(Connector connector) {
        this.connector = connector;
    }

    protected void doStart() throws Exception {
        server = new Server();
        if (connector == null) {
            connector = socketConnectorFactory.createConnector();
        }

        URI bind = getBindLocation();
        bind();

        ServletContextHandler contextHandler =
            new ServletContextHandler(server, "/", ServletContextHandler.NO_SECURITY);

        ServletHolder holder = new ServletHolder();
        holder.setServlet(new HttpTunnelServlet());
        contextHandler.addServlet(holder, "/");

        contextHandler.setAttribute("acceptListener", getAcceptListener());
        contextHandler.setAttribute("wireFormat", getWireFormat());
        contextHandler.setAttribute("transportFactory", transportFactory);
        contextHandler.setAttribute("transportOptions", transportOptions);

        GzipHandler gzipHandler = new GzipHandler();
        contextHandler.setHandler(gzipHandler);

        server.start();
        setConnectURI(new URI(bind.getScheme(), bind.getUserInfo(), host, connector.getLocalPort(), bind.getPath(), bind.getQuery(), bind.getFragment()));
    }

    protected void doStop(ServiceStopper stopper) throws Exception {
        Server temp = server;
        server = null;
        if (temp != null) {
            temp.stop();
        }
    }

    public InetSocketAddress getSocketAddress() {
        return null;
    }

    @Override
    public void setTransportOption(Map<String, Object> transportOptions) {
        socketConnectorFactory.setTransportOptions(transportOptions);
        super.setTransportOption(transportOptions);
    }
}
