diffusion/src/node_modules/activity/session-activity-monitor.js

Diffusion JavaScript client

/*eslint valid-jsdoc: "off"*/
/**
 * Activity monitor for session.
 * @param connectionActivityMonitorFactory Factory for connection activity monitors
 */
function SessionActivityMonitor(connectionActivityMonitorFactory) {
    var currentConnectionMonitor = null;

    /**
     * Called when a new connection has been opened by the session.
     * @param connection The new connection
     * @param response The new connection response
     */
    this.onNewConnection = function(connection, response) {
        currentConnectionMonitor = connectionActivityMonitorFactory(connection, response);
    };

    /**
     * Called when the current connection has been closed, either cleanly or because of a problem.
     */
    this.onConnectionClosed = function() {
        if (currentConnectionMonitor !== null) {
            currentConnectionMonitor.shutdown();
            currentConnectionMonitor = null;
        }
    };

    /**
     * Called when a system ping is received from the server.
     */
    this.onSystemPing = function() {
        if (currentConnectionMonitor !== null) {
            currentConnectionMonitor.onSystemPing();
        }
    };
}

module.exports = {
    /**
     * Null object implementation of Session activity monitor.
     */
    NOOP : {
        onNewConnection : function() {},
        onConnectionClosed : function() {},
        onSystemPing : function() {}
    },
    create : function(connectionActivityMonitorFactory) {
        return new SessionActivityMonitor(connectionActivityMonitorFactory);
    }
};