Web Output Adapter

Name: Use this required field to specify or change the name of this instance of this component. The name must be unique within the current EventFlow module. The name can contain alphanumeric characters, underscores, and escaped special characters. Special characters can be escaped as described in Identifier Naming Rules. The first character must be alphabetic or an underscore.

Adapter: A read-only field that shows the formal name of the adapter.

Class name: Shows the fully qualified class name that implements the functionality of this adapter. If you need to reference this class name elsewhere in your application, you can right-click this field and select Copy from the context menu to place the full class name in the system clipboard.

Start with application: If this field is set to Yes (default) or to a module parameter that evaluates to true, this instance of this adapter starts as part of the JVM engine that runs this EventFlow fragment. If this field is set to No or to a module parameter that evaluates to false, the adapter instance is loaded with the engine, but does not start until you send an epadmin container resume command (or its sbadmin equivalent), or until you start the component with StreamBase Manager.

Enable Error Output Port: Select this checkbox to add an Error Port to this component. In the EventFlow canvas, the Error Port shows as a red output port, always the last port for the component. See Using Error Ports to learn about Error Ports.

Description: Optionally, enter text to briefly describe the purpose and function of the component. In the EventFlow Editor canvas, you can see the description by pressing Ctrl while the component's tooltip is displayed.

Use the settings in this tab to enable this operator or adapter for runtime start and stop conditions in a multi-node cluster. During initial development of the fragment that contains this operator or adapter, and for maximum compatibility with releases before 10.5.0, leave the Cluster start policy control in its default setting, Start with module.

Cluster awareness is an advanced topic that requires an understanding of StreamBase Runtime architecture features, including clusters, quorums, availability zones, and partitions. See Cluster Awareness Tab Settings on the Using Cluster Awareness page for instructions on configuring this tab.

Once connected, the only message the WebSocket accepts is a JSON-formatted string to set the WebSocket's ID.

The ID field is used when input tuples also contain an ID field, and if they match the tuple is sent to this WebSocket. If no ID is set for this WebSocket, then only tuples with no ID field set or a null or empty ID field is sent to this WebSocket.

Example message: {"id":"7080AA07-5C01-4F8D-BB40-5B9C47F757BB"}

Once connected, the adapter starts sending tuples received on its input port to connected WebSockets. Tuples are converted from a tuple to a JSON-formatted string before sending. To preserver bandwidth, the JSON will not include any null fields.

Only exactly one webstream configuration is allowed per application, which all adapters will use if found.

This example configuration shows a web server that contains all available values.

name = "WebStream.conf"
        type = "com.tibco.ep.streambase.configuration.adapter"
        version = "1.0.0"
        configuration = {
        
        // An adapter group type defines a collection of EventFlow adapter configurations, indexed by adapter type.
            AdapterGroup = {
        
        // A collection of EventFlow adapter configurations, indexed by adapter type. This key is required and must contain at
        // least one configuration.
                adapters = {
        
        // The root section for an EventFlow adapter configuration.
                    webstreams = {
        
        // Section list. This key is optional and has no default value.
                        sections = [
        
        // A configuration for an EventFlow adapter named section.
                            {
        
        // Section name. The value does not have to be unique; that is, you can have multiple sections with the same name
        // in the same array of sections. This key is required.
                                name = "webstreams"
        
        // Section property bag. All values must be strings. This key is optional and has no default value.
                                settings = {
                                    Enabled = "true"
                                    IdleTimeoutMS = "0"
                                    OutputBufferSize = "32768"
                                    Port = "10090"
                                    RequestHeaderSize = "8192"
                                    ResponseHeaderSize = "8192"
                                    SendDateHeader = "false"
                                    SendServerVersion = "true"
                                    StartOnStartup = "true"
                                    WebSocketAsyncWriteTimeoutMS = "0"
                                    WebSocketIdleTimeoutMS = "0"
                                    SelectorThreads = "-1"
                                    AcceptorThreads = "-1"
                                    ReuseAddress = "true"
                                    LingerTime = "-1"
                                    GZipMimeTypes = "text/html,text/plain,text/xml,application/xhtml+xml,text/css,application/javascript,text/javascript,image/svg+xml"
                                    SecurePort = "10443"
                                    SSLKeyStorePath = "keystore"
                                    SSLKeyStorePassword = "tester"
                                    SSLKeyStoreManagerPassword = "tester"
                                    SSLTrustStorePath = "keystore"
                                    SSLTrustStorePassword = "tester"
                                }
                            }
                        ]
                    }
                }
            }
        }

* NOTE: Please refer to http://wiki.eclipse.org/Jetty/Howto/Configure_SSL when setting up SSL.