Diameter Client Input

Name: Use this required field to specify or change the name of this instance of this component, which must be unique in the current EventFlow module. The name must contain only alphabetic characters, numbers, and underscores, and no hyphens or other special characters. The first character must be alphabetic or an underscore.

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

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 check box 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 component's purpose and function. In the EventFlow Editor canvas, you can see the description by pressing Ctrl while the component's tooltip is displayed.

Use the Concurrency tab to specify parallel regions for this instance of this component, or multiplicity options, or both. The Concurrency tab settings are described in Concurrency Options, and dispatch styles are described in Dispatch Styles.

The schema for the output port is partially static fields created by the adapter and partially dynamically created based on the dictionary provided. For each message specified in the Application Commands section a new sub tuple will be added to the output tuple. This output will will be a mix of static fields created by the adapter and fields created by the dictionary. The following explains the fields that the adapter creates for the main tuple.

If Handle Errors is enabled an 'Error' field is added to the tuple and its schema is defined below. This field is used if the applicationId is set to 'Base' and the commandCode is set to 'Error'.

For each message specified in the Application Commands section a new sub tuple will be added to the output tuple. This output will will be a mix of static fields created by the adapter and fields created by the dictionary. The following explains the fields that the adapter creates for each application and command code specified.

The following lists the Diameter message types that are handled internally if they are not exposed to the EventFlow application

There are two types of unhandled messages: those that are part of the dictionary but not exposed to the EventFlow application, and those messages that are not in the provided dictionary files.

If a Diameter message is received but cannot be found in the dictionary file, then a status and log error message will be output with the error. The client is subsequently disconnected.

If a Diameter message is received and found in the dictionary but no adapter is set up to handle the message, an INFO warning is displayed in the logs that states the application and command code that was received and not handled.

name = "Diameter.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 object is required and must contain at least one configuration.
    adapters = {

// The root section for an EventFlow adapter configuration.
      DiameterAdapters = {

// Section list. This array 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 property is required.
        name = "DiameterAdapter"

// Section for setting adapter properties. All values must be strings. This object 
// is optional and has no default value.
          settings = {
            dictionary = "TestDictionary.json"
            host = ""
            id = "DiameterSectionedMessagesServer"
            originHost = "127.0.0.1"
            originRealm = "tibco.com"
            productName = "Streambase"
              }
                }

// 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 property is required.
                      name = "DiameterAdapter"

// Section for setting adapter properties. All values must be strings. This object 
// is optional and has no default value.
                        settings = {
                          dictionary = "TestDictionary.json"
                          host = "127.0.0.1"
                          id = "DiameterSectionedMessagesClient"
                          originHost = "127.0.0.1"
                          originRealm = "tibco.com"
                          productName = "Streambase"
            }
          }
        ]
      }
    }
  }
}

StreamBase includes a Diameter sample that comes with a BaseDictionary.json file. TIBCO recommends using the file as the base for your Diameter projects. This base dictionary includes all the required information for the Diameter adapters to perform the most basic Diameter protocol functions. The sample also includes a TestDictionary.json that shows the most basic dictionary files, including the base dictionary, to get the adapters up and running.

The following shows the schema to which each dictionary must conform:

{
   "$schema":"http://json-schema.org/draft-04/schema#",
   "type":"object",
   "properties":{
      "includeDictionary":{
        "type":"array",
         "items":{
            "type":"object",
            "properties":{
               "file":{
                  "type":"string"
               }
            },
            "required":[
               "file"
            ]
         }       
      },
      "settings":{
        "type":"object",
        "properties":{
           "enumAsString":{
              "type":"boolean"
           },
           "applicationAndCommandAsString":{
              "type":"boolean"
           }
        }        
      },
      "vendors":{
         "type":"array",
         "items":{
            "type":"object",
            "properties":{
               "name":{
                  "type":"string"
               },
               "id":{
                  "type":"string"
               },
               "code":{
                  "type":"integer"
               }
            },
            "required":[
               "name",
               "id",
               "code"
            ]
         }
      },
      "dataTypes":{
         "type":"array",
         "items":{
            "type":"object",
            "properties":{
               "dataType":{
                  "type":"string"
               },
               "parentDataType":{
                  "type":"string"
               }
            },
            "required":[
               "dataType"
            ]
         }
      },
      "avps":{
         "type":"array",
         "items":{
            "type":"object",
            "properties":{
               "name":{
                  "type":"string"
               },
               "code":{
                  "type":"integer"
               },
               "vendorId":{
                  "type":"string"
               },
               "must":{
                  "type":"array",
                  "items":{
                     "enum":[
                        "M",
                        "V",
                        null
                     ]
                  }
               },
               "must-not":{
                  "type":"array",
                  "items":{
                     "enum":[
                        "M",
                        "V",
                        null
                     ]
                  }
               },
               "type":{
                  "type":"object",
                  "properties":{
                     "dataType":{
                        "type":"string"
                     },
                     "enum":{
                        "type":[
                           "array",
                           "object"
                        ],
                        "items":{
                           "type":"object",
                           "properties":{
                              "value":{
                                 "type":"integer"
                              },
                              "name":{
                                 "type":"string"
                              }
                           },
                           "required":[
                              "name"
                           ]
                        }
                     }
                  },
                  "required":[
                     "dataType"
                  ]
               },
               "grouped":{
                  "type":"array",
                  "items":{
                     "type":"object",
                     "properties":{
                        "name":{
                           "type":"string"
                        },
                        "min":{
                           "type":"integer"
                        },
                        "max":{
                           "type":"integer"
                        }
                     }
                  }
               }
            },
            "required":[
               "name",
               "code"
            ]
         }
      },
      "applications":{
         "type":"array",
         "items":{
            "type":"object",
            "properties":{
               "applicationId":{
                  "type":"integer"
               },
               "name":{
                  "type":"string"
               },
               "commands":{
                  "type":"array",
                  "items":{
                     "type":"object",
                     "properties":{
                        "name":{
                           "type":"string"
                        },
                        "code":{
                           "type":"integer"
                        },
                        "proxiable": {
                            "type":"boolean"
                        },
                        "request":{
                           "type":"array",
                           "items":{
                              "type":"object",
                              "properties":{
                                 "name":{
                                    "type":"string"
                                 },
                                 "min":{
                                    "type":"integer"
                                 },
                                 "max":{
                                    "type":"integer"
                                 },
                                 "vendorId":{
                                    "type":"string"
                                 },
                                 "index":{
                                    "type":"integer"
                                 },
                                 "hidden":{
                                    "type":"boolean"
                                 }
                              },
                              "required":[
                                 "name",
                                 "min"
                              ]
                           }
                        },
                        "answer":{
                           "type":"array",
                           "items":{
                              "type":"object",
                              "properties":{
                                 "name":{
                                    "type":"string"
                                 },
                                 "min":{
                                    "type":"integer"
                                 },
                                 "max":{
                                    "type":"integer"
                                 },
                                 "vendorId":{
                                    "type":"string"
                                 },
                                 "index":{
                                    "type":"integer"
                                 },
                                 "hidden":{
                                    "type":"boolean"
                                 }
                              },
                              "required":[
                                 "name",
                                 "min"
                              ]
                           }
                        }
                     },
                     "required":[
                        "name",
                        "code",
                        "proxiable",
                        "request",
                        "answer"
                     ]
                  }
               }
            },
            "required":[
               "commands",
               "applicationId"
            ]
         }
      }
   },
   "required":[
      "vendors",
      "dataTypes",
      "avps",
      "applications"
   ]
}

The following are the major categories of the dictionary file and an overview of their usage.