CargoTranslator Class

Properties   Methods   Events   Config Settings   Errors  

The CargoTranslator class is optimized for Cargo-IMP translation, providing a simple way to convert Cargo-IMP documents to and from XML or JSON.

Syntax

ipworksedi.cargotranslator()

Remarks

The CargoTranslator class provides a simple way to convert Cargo-IMP to XML or JSON and vice versa.

Getting Started

The class will convert a document from the format specified by InputFormat to the format specified by OutputFormat. In practice this allows for converting to XML or JSON from Cargo-IMP and vice versa.

Before translating from Cargo-IMP to XML or JSON it is recommended to load a schema using the LoadSchema method. This ensures additional information can be included in the XML or JSON document. If a schema is specified the XML or JSON will include types and descriptions as element attributes which are useful for interpreting the data.

After calling Translate the resulting output will contain the Cargo-IMP, XML or JSON data as defined by OutputFormat.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

• InputFile
• InputData

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

• OutputFile
• OutputData: The output data is written to this property if no other destination is specified.

Schemas are written in JSON format: { "name": "FSU", "desc": "FSU MESSAGE", "children": { "1": { "desc": "Standard Message Identification", "children": { "1.1": { "desc": "Standard Message Identifier", "value": "FSU" }, "1.2": { "value": "/" }, "1.3": { "desc": "Message Type Version Number", "format": "n[...3]" }, "1.4": { "value": "\r\n" } } }, "2": { ... For example schemas and questions, please contact support@nsoftware.com.

Property List

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The following is the full list of the properties of the class with short descriptions. Click on the links for further details.

Method List

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The following is the full list of the methods of the class with short descriptions. Click on the links for further details.

Event List

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The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.

Config Settings

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The following is a list of config settings for the class with short descriptions. Click on the links for further details.

CargoTranslator.Errors Property

A collection of errors that occurred when parsing the Cargo-IMP messages.

Syntax

getErrors(): CargoErrorList;

Default Value

Remarks

This property is populated with error information. After calling Translate, check this property to determine if any errors occurred while parsing the message. If there are any errors present, the output from translation will likely be incorrect.

This property is read-only and not available at design time.

Please refer to the CargoError type for a complete list of fields.

CargoTranslator.InputData Property

The data to translate.

Syntax

getInputData(): string;
setInputData(inputData: string): void;

Default Value

""

Remarks

This property specifies the data to be translated. This may be set to Cargo-IMP data or XML/JSON data. To specify the type of data held by the property set InputFormat.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

• InputFile
• InputData

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

• OutputFile
• OutputData: The output data is written to this property if no other destination is specified.

CargoTranslator.InputFile Property

The file to translate.

Syntax

getInputFile(): string;
setInputFile(inputFile: string): void;

Default Value

""

Remarks

This property specifies the file to be processed. Set this property to the full or relative path to the file which will be processed. To specify the type of data in the input file set InputFormat.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

• InputFile
• InputData

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

• OutputFile
• OutputData: The output data is written to this property if no other destination is specified.

This property is not available at design time.

CargoTranslator.InputFormat Property

The format of the input data.

Syntax

getInputFormat(): CargotranslatorInputFormats;
setInputFormat(inputFormat: CargotranslatorInputFormats): void;

enum CargotranslatorInputFormats {
  eifXML,
  eifJSON,
  eifCargo
}

Default Value

2

Remarks

This property specifies the format of the input data. The value set here, along with OutputFormat, determines how the data is converted when Translate is called.

Possible values are:

• 0 (ifXML)
• 1 (ifJSON)
• 2 (ifCargo)

Before calling Translate, both InputFormat and OutputFormat must be specified. Translation from XML or JSON to Cargo-IMP and vice versa are supported. If InputFormat is ofXML or ofJSON, OutputFormat must be ofCargo. Similarly, if InputFormat is ofCargo, OutputFormat must be ofXML or ofJSON.

This property is not available at design time.

CargoTranslator.OutputData Property

The translated data.

Syntax

getOutputData(): string;
setOutputData(outputData: string): void;

Default Value

""

Remarks

This property will be populated with the translated data after calling Translate if OutputFile and SetOutputStream are not set.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

• InputFile
• InputData

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

• OutputFile
• OutputData: The output data is written to this property if no other destination is specified.

This property is not available at design time.

CargoTranslator.OutputFile Property

The file to which the translated data will be written.

Syntax

getOutputFile(): string;
setOutputFile(outputFile: string): void;

Default Value

""

Remarks

This property specifies the file to which the translated data will be written. This may be set to an absolute or relative path. This should be set before calling Translate.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

• InputFile
• InputData

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

• OutputFile
• OutputData: The output data is written to this property if no other destination is specified.

This property is not available at design time.

CargoTranslator.OutputFormat Property

The format of the output data.

Syntax

getOutputFormat(): CargotranslatorOutputFormats;
setOutputFormat(outputFormat: CargotranslatorOutputFormats): void;

enum CargotranslatorOutputFormats {
  eofXML,
  eofJSON,
  eofCargo
}

Default Value

0

Remarks

This property specifies the format of the output data. The value set here, along with InputFormat, determines how the data is converted when Translate is called.

Possible values are:

• 0 (ofXML)
• 1 (ofJSON)
• 2 (ofCargo)

Before calling Translate, both InputFormat and OutputFormat must be specified. Translation from XML or JSON to Cargo-IMP and vice versa are supported. If InputFormat is ofXML or ofJSON, OutputFormat must be ofCargo. Similarly, if InputFormat is ofCargo, OutputFormat must be ofXML or ofJSON.

This property is not available at design time.

CargoTranslator.Overwrite Property

Whether to overwrite the file.

Syntax

isOverwrite(): boolean;
setOverwrite(overwrite: boolean): void;

Default Value

FALSE

Remarks

This property specifies whether the file is overwritten when Translate is called. If set to False (default) the class when attempting to write to a file which already exists. If set to True the class will overwrite the existing file.

CargoTranslator.Suffix Property

What to append after each segment delimiter.

Syntax

getSuffix(): CargotranslatorSuffixes;
setSuffix(suffix: CargotranslatorSuffixes): void;

enum CargotranslatorSuffixes {
  suffixNone,
  suffixCR,
  suffixLF,
  suffixCRLF
}

Default Value

3

Remarks

If Suffix is different from suffixNone, trailing (suffix) characters are appended after each segment delimiter. This is useful if you want to have a carriage return/line feed after each segment to make the document more readable.

This property is not available at design time.

CargoTranslator.config Method

Sets or retrieves a configuration setting.

Syntax

async cargotranslator.config(configurationString : string): Promise<string>

Remarks

Config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

CargoTranslator.loadSchema Method

Loads a schema file describing a Message type.

Syntax

async cargotranslator.loadSchema(fileName : string): Promise<void>

Remarks

This method parses the File and loads it into an internal schema list.

If the schema file does not exist or cannot be parsed as an Cargo-IMP schema, the class .

Schemas are written in JSON format: { "name": "FSU", "desc": "FSU MESSAGE", "children": { "1": { "desc": "Standard Message Identification", "children": { "1.1": { "desc": "Standard Message Identifier", "value": "FSU" }, "1.2": { "value": "/" }, "1.3": { "desc": "Message Type Version Number", "format": "n[...3]" }, "1.4": { "value": "\r\n" } } }, "2": { ... For example schemas and questions, please contact support@nsoftware.com.

CargoTranslator.reset Method

Resets the class.

Syntax

async cargotranslator.reset(): Promise<void>

Remarks

When called, the class initializes itself to its default state.

CargoTranslator.translate Method

Translates the specified data.

Syntax

async cargotranslator.translate(): Promise<void>

Remarks

This method translates the specified data.

The class will convert a document from the format specified by InputFormat to the format specified by OutputFormat. In practice this allows for converting to XML or JSON from Cargo-IMP and vice versa.

Before translating from Cargo-IMP to XML or JSON it is recommended to load a schema using the LoadSchema method. This ensures additional information can be included in the XML or JSON document. If a schema is specified the XML or JSON will include types and descriptions as element attributes which are useful for interpreting the data.

After calling Translate the resulting output will contain the Cargo-IMP, XML or JSON data as defined by OutputFormat.

Input and Output Properties

The class will determine the source and destination of the input and output based on which properties are set.

The order in which the input properties are checked is as follows:

• InputFile
• InputData

When a valid source is found the search stops. The order in which the output properties are checked is as follows:

• OutputFile
• OutputData: The output data is written to this property if no other destination is specified.

Schemas are written in JSON format: { "name": "FSU", "desc": "FSU MESSAGE", "children": { "1": { "desc": "Standard Message Identification", "children": { "1.1": { "desc": "Standard Message Identifier", "value": "FSU" }, "1.2": { "value": "/" }, "1.3": { "desc": "Message Type Version Number", "format": "n[...3]" }, "1.4": { "value": "\r\n" } } }, "2": { ... For example schemas and questions, please contact support@nsoftware.com.

CargoTranslator.Error Event

Fired when information is available about errors during data delivery.

Syntax

cargotranslator.on('Error', listener: (e: {readonly errorCode: number, readonly description: string}) => void )

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the class .

The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

CargoTranslator.ResolveSchema Event

Fires whenever a new Cargo-Imp message is encountered and no schema is found for it.

Syntax

cargotranslator.on('ResolveSchema', listener: (e: {readonly messageIdentifier: string, readonly version: string}) => void )

Remarks

The ResolveSchema event will fire when a the class encounters a new Cargo-IMP message, but it finds no schema corresponding to it already loaded.

MessageIdentifier contains the message type, such as "FWB" or "FSU".

Version contains the version of the schema used by the message.

When processing this event, the caller can use LoadSchema() to load a new schema into the class that can be used to parse the transaction.

CargoError Type

This type contains the details of an error that occurred while parsing a Cargo-IMP message.

Remarks

The properties below provide information about the error.

Fields

Config Settings (class ipworksedi.cargotranslator)

The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the Config method.

Base Config Settings

Trappable Errors (class ipworksedi.cargotranslator)

CargoTranslator Errors

	304   Could not write to file.
	1000   Invalid schema file.
	1001   No schema found.
	1002   Schema format error.
	1003   Line or message was too long.
	1004   Failed to parse the message version.
	1005   Element is not in the schema file or is not a simple element.
	1006   Could not find the element.