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/*
 * 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.camel.component.websocket;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.List;

import org.apache.camel.Category;
import org.apache.camel.Consumer;
import org.apache.camel.Processor;
import org.apache.camel.Producer;
import org.apache.camel.spi.Metadata;
import org.apache.camel.spi.UriEndpoint;
import org.apache.camel.spi.UriParam;
import org.apache.camel.spi.UriPath;
import org.apache.camel.support.DefaultEndpoint;
import org.apache.camel.support.jsse.SSLContextParameters;
import org.apache.camel.util.ObjectHelper;
import org.eclipse.jetty.server.Handler;

/**
 * Expose websocket endpoints using Jetty.
 */
@UriEndpoint(firstVersion = "2.10.0", scheme = "websocket", title = "Jetty Websocket",
             syntax = "websocket:host:port/resourceUri", category = { Category.WEBSOCKET },
             headersClass = WebsocketConstants.class)
public class WebsocketEndpoint extends DefaultEndpoint {

    private WebsocketComponent component;
    private URI uri;
    private List handlers;

    @UriPath(defaultValue = "0.0.0.0")
    private String host;
    @UriPath(defaultValue = "9292")
    private Integer port;
    @UriPath
    @Metadata(required = true)
    private String resourceUri;

    @UriParam(label = "producer")
    private Boolean sendToAll;
    @UriParam(label = "producer", defaultValue = "30000")
    private Integer sendTimeout = 30000;
    @UriParam(label = "monitoring")
    private boolean enableJmx;
    @UriParam(label = "consumer")
    private boolean sessionSupport;
    @UriParam(label = "cors")
    private boolean crossOriginFilterOn;
    @UriParam(label = "security")
    private SSLContextParameters sslContextParameters;
    @UriParam(label = "cors")
    private String allowedOrigins;
    @UriParam(label = "cors")
    private String filterPath;
    @UriParam(label = "consumer")
    private String staticResources;
    @UriParam(label = "advanced", defaultValue = "8192")
    private Integer bufferSize;
    @UriParam(label = "advanced", defaultValue = "300000")
    private Integer maxIdleTime;
    @UriParam(label = "advanced")
    private Integer maxTextMessageSize;
    @UriParam(defaultValue = "-1")
    private Integer maxBinaryMessageSize;
    @UriParam(label = "advanced", defaultValue = "13")
    private Integer minVersion;
    @UriParam(label = "consumer", defaultValue = "any")
    private String subprotocol;

    public WebsocketEndpoint(WebsocketComponent component, String uri, String resourceUri) {
        super(uri, component);
        this.resourceUri = resourceUri;
        this.component = component;
        try {
            this.uri = new URI(uri);
        } catch (URISyntaxException e) {
            throw new IllegalArgumentException(e);
        }
    }

    @Override
    public WebsocketComponent getComponent() {
        ObjectHelper.notNull(component, "component");
        return (WebsocketComponent) super.getComponent();
    }

    @Override
    public Consumer createConsumer(Processor processor) throws Exception {
        ObjectHelper.notNull(component, "component");
        WebsocketConsumer consumer = new WebsocketConsumer(this, processor);
        configureConsumer(consumer);
        return consumer;
    }

    @Override
    public Producer createProducer() throws Exception {
        return new WebsocketProducer(this);
    }

    public void connect(WebsocketConsumer consumer) throws Exception {
        component.connect(consumer);
    }

    public void disconnect(WebsocketConsumer consumer) throws Exception {
        component.disconnect(consumer);
    }

    public void connect(WebsocketProducer producer) throws Exception {
        component.connect(producer);
    }

    public void disconnect(WebsocketProducer producer) throws Exception {
        component.disconnect(producer);
    }

    public URI getUri() {
        return uri;
    }

    public Integer getPort() {
        return port;
    }

    public String getHost() {
        return host;
    }

    /**
     * The hostname. The default value is 0.0.0.0. Setting this option on the component will use the component
     * configured value as default.
     */
    public void setHost(String host) {
        this.host = host;
    }

    /**
     * The port number. The default value is 9292. Setting this option on the component will use the component
     * configured value as default.
     */
    public void setPort(int port) {
        this.port = port;
    }

    public String getStaticResources() {
        return staticResources;
    }

    /**
     * Set a resource path for static resources (such as .html files etc).
     * 

* The resources can be loaded from classpath, if you prefix with classpath:, otherwise the resources is * loaded from file system or from JAR files. *

* For example to load from root classpath use classpath:., or classpath:WEB-INF/static *

* If not configured (eg null) then no static resource is in use. */ public void setStaticResources(String staticResources) { this.staticResources = staticResources; } public Boolean getSendToAll() { return sendToAll; } /** * To send to all websocket subscribers. Can be used to configure on endpoint level, instead of having to use the * WebsocketConstants.SEND_TO_ALL header on the message. */ public void setSendToAll(Boolean sendToAll) { this.sendToAll = sendToAll; } public Integer getSendTimeout() { return sendTimeout; } /** * Timeout in millis when sending to a websocket channel. The default timeout is 30000 (30 seconds). */ public void setSendTimeout(Integer sendTimeout) { this.sendTimeout = sendTimeout; } public String getProtocol() { return uri.getScheme(); } public String getPath() { return uri.getPath(); } /** * Whether to enable session support which enables HttpSession for each http request. */ public void setSessionSupport(boolean support) { sessionSupport = support; } public boolean isSessionSupport() { return sessionSupport; } public Integer getBufferSize() { return bufferSize; } /** * Set the buffer size of the websocketServlet, which is also the max frame byte size (default 8192) */ public void setBufferSize(Integer bufferSize) { this.bufferSize = bufferSize; } public Integer getMaxIdleTime() { return maxIdleTime; } /** * Set the time in ms that the websocket created by the websocketServlet may be idle before closing. (default is * 300000) */ public void setMaxIdleTime(Integer maxIdleTime) { this.maxIdleTime = maxIdleTime; } public Integer getMaxTextMessageSize() { return maxTextMessageSize; } /** * Can be used to set the size in characters that the websocket created by the websocketServlet may be accept before * closing. */ public void setMaxTextMessageSize(Integer maxTextMessageSize) { this.maxTextMessageSize = maxTextMessageSize; } public Integer getMaxBinaryMessageSize() { return maxBinaryMessageSize; } /** * Can be used to set the size in bytes that the websocket created by the websocketServlet may be accept before * closing. (Default is -1 - or unlimited) */ public void setMaxBinaryMessageSize(Integer maxBinaryMessageSize) { this.maxBinaryMessageSize = maxBinaryMessageSize; } public Integer getMinVersion() { return minVersion; } /** * Can be used to set the minimum protocol version accepted for the websocketServlet. (Default 13 - the RFC6455 * version) */ public void setMinVersion(Integer minVersion) { this.minVersion = minVersion; } public List getHandlers() { return handlers; } public void setHandlers(List handlers) { this.handlers = handlers; } public SSLContextParameters getSslContextParameters() { return sslContextParameters; } /** * To configure security using SSLContextParameters */ public void setSslContextParameters(SSLContextParameters sslContextParameters) { this.sslContextParameters = sslContextParameters; } public boolean isEnableJmx() { return this.enableJmx; } /** * If this option is true, Jetty JMX support will be enabled for this endpoint. See Jetty JMX support for more * details. */ public void setEnableJmx(boolean enableJmx) { this.enableJmx = enableJmx; } public String getAllowedOrigins() { return allowedOrigins; } /** * The CORS allowed origins. Use * to allow all. */ public void setAllowedOrigins(String allowedOrigins) { this.allowedOrigins = allowedOrigins; } public boolean isCrossOriginFilterOn() { return crossOriginFilterOn; } /** * Whether to enable CORS */ public void setCrossOriginFilterOn(boolean crossOriginFilterOn) { this.crossOriginFilterOn = crossOriginFilterOn; } public String getFilterPath() { return filterPath; } /** * Context path for filtering CORS */ public void setFilterPath(String filterPath) { this.filterPath = filterPath; } public String getResourceUri() { return resourceUri; } /** * Name of the websocket channel to use */ public void setResourceUri(String resourceUri) { this.resourceUri = resourceUri; } /** * See {@link #getSubprotocol()} */ public String getSubprotocol() { return subprotocol; } /** *

* This is a comma-separated list of subprotocols that are supported by the application. The list is in priority * order. The first subprotocol on this list that is proposed by the client is the one that will be accepted. If no * subprotocol on this list is proposed by the client, then the websocket connection is refused. The special value * 'any' means that any subprotocol is acceptable. 'any' can be used on its own, or as a failsafe at the end of a * list of more specific protocols. 'any' will also match the case where no subprotocol is proposed by the client. *

* * @see The official IANA list * of registered websocket subprotocols */ public void setSubprotocol(String subprotocol) { this.subprotocol = subprotocol; } }




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