warpconnector.java

Tomcat 4.1与WebServer集成组件的源代码包.

     *
     * @param service The service that owns this Engine
     */
    public void setService(Service service) {

        this.service = service;

    }


    /**
     * Return descriptive information about this <code>Connector</code>.
     */
    public String getInfo() {
        if (this.info==null) {
            synchronized(this) {
                this.info=this.getClass().getName()+"/"+
                          Constants.VERS_MINOR+Constants.VERS_MAJOR;
            }
        }
        return(this.info);
    }

    /**
     * Set descriptive information about this <code>Connector</code>.
     */
    public void setInfo(String info) {
        if (info==null) throw new NullPointerException();
        this.info=info;

        if (Constants.DEBUG) logger.debug("Setting info to "+info);
    }

    /**
     * Return the IP address to which this <code>Connector</code> will bind to.
     */
    public String getAddress() {
        return(this.address);
    }

    /**
     * Set the IP address to which this <code>Connector</code> will bind to.
     *
     * @param address The bind IP address
     */
    public void setAddress(String address) {
        this.address=address;

        if (Constants.DEBUG) logger.debug("Setting address to "+address);
    }

    /**
     * Return the port to which this <code>Connector</code> will bind to.
     */
    public int getPort() {
        return(this.port);
    }

    /**
     * Set the port to which this <code>Connector</code> will bind to.
     * 
     * @param port The bind port
     */
    public void setPort(int port) {
        this.port=port;
    }

    /**
     * Set the IP address to which this <code>Connector</code> will bind to.
     *
     * @param address The bind IP address
     */
    public void setAddress(int port) {
        if ((port<1) || (port>65535))
            throw new IllegalArgumentException("Invalid port "+port);
        this.port=port;

        if (Constants.DEBUG) logger.debug("Setting port to "+port);
    }

    /**
     * Return the accept count for this Connector.
     */
    public int getAcceptCount() {
        return (this.acceptCount);
    }


    /**
     * Set the accept count for this Connector.
     *
     * @param count The new accept count
     */
    public void setAcceptCount(int count) {
        this.acceptCount = count;

        if (Constants.DEBUG) logger.debug("Setting acceptCount to "+count);
    }

    /**
     * Get the applications base directory for hosts created via WARP.
     */
    public String getAppBase() {
        return (this.appBase);
    }


    /**
     * Set the applications base directory for hosts created via WARP.
     *
     * @param appBase The appbase property.
     */
    public void setAppBase(String appBase) {
        this.appBase = appBase;

        if (Constants.DEBUG) logger.debug("Setting appBase to "+appBase);
    }

    /**
     * Return the debug level.
     */
    public int getDebug() {
        return(this.debug);
    }

    /**
     * Set the debug level.
     */
    public void setDebug(int debug) {
        this.debug=debug;
    }

    /* ==================================================================== */
    /* Lifecycle methods                                                    */
    /* ==================================================================== */

    /**
     * Add a <code>LifecycleEvent</code> listener to this
     * <code>Connector</code>.
     *
     * @param listener The listener to add
     */
    public void addLifecycleListener(LifecycleListener listener) {
        lifecycle.addLifecycleListener(listener);
    }

    /**
     * Get the lifecycle listeners associated with this lifecycle. If this 
     * Lifecycle has no listeners registered, a zero-length array is returned.
     */
    public LifecycleListener[] findLifecycleListeners() {
        return null; // FIXME: lifecycle.findLifecycleListeners();
    }

    /**
     * Remove a <code>LifecycleEvent</code> listener from this
     * <code>Connector</code>.
     *
     * @param listener The listener to remove
     */
    public void removeLifecycleListener(LifecycleListener listener) {
        lifecycle.removeLifecycleListener(listener);
    }

    /**
     * Initialize this connector (create ServerSocket here!)
     */
    public void initialize()
    throws LifecycleException {
        if (initialized)
            throw new LifecycleException("Already initialized");
        this.initialized=true;

        // Get a hold on a server socket
        try {
            ServerSocketFactory fact=this.getFactory();
            int port=this.getPort();
            int accc=this.getAcceptCount();

            if (this.getAddress()==null) {
                this.server=fact.createSocket(port,accc);
            } else {
                InetAddress addr=InetAddress.getByName(this.getAddress());
                this.server=fact.createSocket(port,accc,addr);
            }
        } catch (Exception e) {
            throw new LifecycleException("Error creating server socket ("+
                e.getClass().getName()+")",e);
        }
    }

    /**
     * Start accepting connections by this <code>Connector</code>.
     */
    public void start() throws LifecycleException {
        if (!initialized) this.initialize();
        if (started) throw new LifecycleException("Already started");

        // Can't get a hold of a server socket
        if (this.server==null)
            throw new LifecycleException("Server socket not created");

        lifecycle.fireLifecycleEvent(START_EVENT, null);

        this.started = true;

        this.thread=new Thread(this);
        this.thread.setDaemon(true);
        this.thread.start();
    }

    /**
     * Stop accepting connections by this <code>Connector</code>.
     */
    public void stop() throws LifecycleException {
        if (!started) throw new LifecycleException("Not started");

        lifecycle.fireLifecycleEvent(STOP_EVENT, null);

        this.started = false;

        if (this.server!=null) try {
            this.server.close();
        } catch (IOException e) {
            logger.log("Cannot close ServerSocket",e);
        }
    }

    /**
     * Check whether this service was started or not.
     */
    public boolean isStarted() {
        return(this.started);
    }

    /* ==================================================================== */
    /* Public methods                                                       */
    /* ==================================================================== */

    /**
     * Return the application ID for a given <code>Context</code>.
     */
    protected int applicationId(Context context) {
        int id=this.applications.indexOf(context);
        if (id==-1) {
            this.applications.add(context);
            id=this.applications.indexOf(context);
        }
        return(id);
    }

    /**
     * Return the application for a given ID.
     */
    protected Context applicationContext(int id) {
        try {
            return((Context)this.applications.elementAt(id));
        } catch (ArrayIndexOutOfBoundsException e) {
            return(null);
        }
    }

    /**
     * Create (or allocate) and return a Request object suitable for
     * specifying the contents of a Request to the responsible Container.
     */
    public Request createRequest() {
        return(null);
    }

    /**
     * Create (or allocate) and return a Response object suitable for
     * receiving the contents of a Response from the responsible Container.
     */
    public Response createResponse() {
        return(null);
    }

    /**
     * Start accepting WARP requests from the network.
     */
    public void run() {
        // Start accepting connections
        try {
            while (this.isStarted()) {
                Socket sock=this.server.accept();
                InetAddress raddr=sock.getInetAddress();
                InetAddress laddr=sock.getLocalAddress();
                int rport=sock.getPort();
                int lport=sock.getLocalPort();
                logger.log("Connection from "+raddr+":"+rport+" to "+laddr+
                           ":"+lport);
                WarpConnection conn=new WarpConnection();
                conn.setConnector(this);
                conn.setSocket(sock);
                this.addLifecycleListener(conn);
                conn.start();
            }
        } catch (IOException e) {
            logger.log("Error accepting requests",e);
        }
    }
}