CargoValidator Component

Properties   Methods   Events   Config Settings   Errors  

CargoValidator is a lightweight Cargo-IMP validation component designed for simple document validation.

Syntax

nsoftware.IPWorksEDITranslator.Cargovalidator

Remarks

This component provides a simple way to validate a Cargo-IMP and obtain details about any validation errors.

Cargo-IMP Validation

Before calling Validate call LoadSchema to load the schema for the message to be validated. The validation performed by the component depends largely on the schema's definition.

When the Validate method is called the component will attempt to validate the message. After the message has been validated the ValidationErrors property will be populated with details of each error.

Inspect the ValidationErrors property for information on any errors that were encountered.

Validation Example validator.InputFile = "files/CargoMessages/Message.txt"; validator.LoadSchema("my_schemas/cargoimp_schemas/FWB.json"); validator.Validate(); foreach (CargoError error in validator.ValidationErrors) { Console.WriteLine(error.Description); }

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


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

InputDataThe data to validate.
InputFileThe file to validate.
ValidationErrorsA collection of errors that occurred when parsing the Cargo-Imp messages.

Method List


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

ConfigSets or retrieves a configuration setting.
LoadSchemaLoads a schema file describing a Message type.
ResetResets the component.
SetInputStreamSets the stream from which the component will read the data to validate.
ValidateValidate the specified input data.

Event List


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

ErrorInformation about errors during data delivery.
ResolveSchemaFires whenever a new Cargo-Imp message is encountered and no schema is found for it.

Config Settings


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

BuildInfoInformation about the product's build.
GUIAvailableTells the component whether or not a message loop is available for processing events.
LicenseInfoInformation about the current license.
MaskSensitiveWhether sensitive data is masked in log messages.
UseFIPSCompliantAPITells the component whether or not to use FIPS certified APIs.
UseInternalSecurityAPITells the component whether or not to use the system security libraries or an internal implementation.

InputData Property (CargoValidator Component)

The data to validate.

Syntax

public string InputData { get; set; }
Public Property InputData As String

Default Value

""

Remarks

This property specifies the data to be validated.

Input Properties

The component will determine the source of the input based on which properties are set.

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

When a valid source is found the search stops.

InputFile Property (CargoValidator Component)

The file to validate.

Syntax

public string InputFile { get; set; }
Public Property InputFile As String

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.

Input Properties

The component will determine the source of the input based on which properties are set.

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

When a valid source is found the search stops.

This property is not available at design time.

ValidationErrors Property (CargoValidator Component)

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

Syntax

public CargoErrorList ValidationErrors { get; }
Public ReadOnly Property ValidationErrors As CargoErrorList

Remarks

This property is populated with error information. There may be one or more errors.

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

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

Config Method (CargoValidator Component)

Sets or retrieves a configuration setting.

Syntax

public string Config(string configurationString);

Async Version
public async Task<string> Config(string configurationString);
public async Task<string> Config(string configurationString, CancellationToken cancellationToken);
Public Function Config(ByVal ConfigurationString As String) As String

Async Version
Public Function Config(ByVal ConfigurationString As String) As Task(Of String)
Public Function Config(ByVal ConfigurationString As String, cancellationToken As CancellationToken) As Task(Of String)

Remarks

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

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the component, 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.

LoadSchema Method (CargoValidator Component)

Loads a schema file describing a Message type.

Syntax

public void LoadSchema(string fileName);

Async Version
public async Task LoadSchema(string fileName);
public async Task LoadSchema(string fileName, CancellationToken cancellationToken);
Public Sub LoadSchema(ByVal FileName As String)

Async Version
Public Sub LoadSchema(ByVal FileName As String) As Task
Public Sub LoadSchema(ByVal FileName As String, cancellationToken As CancellationToken) As Task

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 component throws an exception.

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.

Reset Method (CargoValidator Component)

Resets the component.

Syntax

public void Reset();

Async Version
public async Task Reset();
public async Task Reset(CancellationToken cancellationToken);
Public Sub Reset()

Async Version
Public Sub Reset() As Task
Public Sub Reset(cancellationToken As CancellationToken) As Task

Remarks

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

SetInputStream Method (CargoValidator Component)

Sets the stream from which the component will read the data to validate.

Syntax

public void SetInputStream(System.IO.Stream inputStream);

Async Version
public async Task SetInputStream(System.IO.Stream inputStream);
public async Task SetInputStream(System.IO.Stream inputStream, CancellationToken cancellationToken);
Public Sub SetInputStream(ByVal InputStream As System.IO.Stream)

Async Version
Public Sub SetInputStream(ByVal InputStream As System.IO.Stream) As Task
Public Sub SetInputStream(ByVal InputStream As System.IO.Stream, cancellationToken As CancellationToken) As Task

Remarks

This method sets the stream from which the component will read the data to validate.

Input Properties

The component will determine the source of the input based on which properties are set.

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

When a valid source is found the search stops.

Validate Method (CargoValidator Component)

Validate the specified input data.

Syntax

public void Validate();

Async Version
public async Task Validate();
public async Task Validate(CancellationToken cancellationToken);
Public Sub Validate()

Async Version
Public Sub Validate() As Task
Public Sub Validate(cancellationToken As CancellationToken) As Task

Remarks

This method parses the input data specified by SetOutputStream, InputFile or InputData.

Input Properties

The component will determine the source of the input based on which properties are set.

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

When a valid source is found the search stops.

Error Event (CargoValidator Component)

Information about errors during data delivery.

Syntax

public event OnErrorHandler OnError;

public delegate void OnErrorHandler(object sender, CargovalidatorErrorEventArgs e);

public class CargovalidatorErrorEventArgs : EventArgs {
  public int ErrorCode { get; }
  public string Description { get; }
}
Public Event OnError As OnErrorHandler

Public Delegate Sub OnErrorHandler(sender As Object, e As CargovalidatorErrorEventArgs)

Public Class CargovalidatorErrorEventArgs Inherits EventArgs
  Public ReadOnly Property ErrorCode As Integer
  Public ReadOnly Property Description As String
End Class

Remarks

The Error event is fired in case of exceptional conditions during message processing. Normally the component throws an exception.

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

ResolveSchema Event (CargoValidator Component)

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

Syntax

public event OnResolveSchemaHandler OnResolveSchema;

public delegate void OnResolveSchemaHandler(object sender, CargovalidatorResolveSchemaEventArgs e);

public class CargovalidatorResolveSchemaEventArgs : EventArgs {
  public string MessageIdentifier { get; }
  public string Version { get; }
}
Public Event OnResolveSchema As OnResolveSchemaHandler

Public Delegate Sub OnResolveSchemaHandler(sender As Object, e As CargovalidatorResolveSchemaEventArgs)

Public Class CargovalidatorResolveSchemaEventArgs Inherits EventArgs
  Public ReadOnly Property MessageIdentifier As String
  Public ReadOnly Property Version As String
End Class

Remarks

The ResolveSchema event will fire when a the component 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 component 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 fields below provide information about the error.

Fields

Config Settings (CargoValidator Component)

The component 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 component, access to these internal properties is provided through the Config method.

Base Config Settings

BuildInfo:   Information about the product's build.

When queried, this setting will return a string containing information about the product's build.

GUIAvailable:   Tells the component whether or not a message loop is available for processing events.

In a GUI-based application, long-running blocking operations may cause the application to stop responding to input until the operation returns. The component will attempt to discover whether or not the application has a message loop and, if one is discovered, it will process events in that message loop during any such blocking operation.

In some non-GUI applications, an invalid message loop may be discovered that will result in errant behavior. In these cases, setting GUIAvailable to false will ensure that the component does not attempt to process external events.

LicenseInfo:   Information about the current license.

When queried, this setting will return a string containing information about the license this instance of a component is using. It will return the following information:

  • Product: The product the license is for.
  • Product Key: The key the license was generated from.
  • License Source: Where the license was found (e.g., RuntimeLicense, License File).
  • License Type: The type of license installed (e.g., Royalty Free, Single Server).
  • Last Valid Build: The last valid build number for which the license will work.
MaskSensitive:   Whether sensitive data is masked in log messages.

In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to true to mask sensitive data. The default is true.

This setting only works on these components: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

UseFIPSCompliantAPI:   Tells the component whether or not to use FIPS certified APIs.

When set to true, the component will utilize the underlying operating system's certified APIs. Java editions, regardless of OS, utilize Bouncy Castle FIPS, while all the other Windows editions make use of Microsoft security libraries.

FIPS mode can be enabled by setting the UseFIPSCompliantAPI configuration setting to true. This is a static setting which applies to all instances of all components of the toolkit within the process. It is recommended to enable or disable this setting once before the component has been used to establish a connection. Enabling FIPS while an instance of the component is active and connected may result in unexpected behavior.

For more details please see the FIPS 140-2 Compliance article.

Note: This setting is only applicable on Windows.

Note: Enabling FIPS-compliance requires a special license; please contact sales@nsoftware.com for details.

UseInternalSecurityAPI:   Tells the component whether or not to use the system security libraries or an internal implementation.

When set to false, the component will use the system security libraries by default to perform cryptographic functions where applicable. In this case, calls to unmanaged code will be made. In certain environments this is not desirable. To use a completely managed security implementation set this setting to true.

Setting this setting to true tells the component to use the internal implementation instead of using the system security libraries.

On Windows, this setting is set to false by default. On Linux/macOS, this setting is set to true by default.

If using the .NET Standard Library, this setting will be true on all platforms. The .NET Standard library does not support using the system security libraries.

Note: This setting is static. The value set is applicable to all components used in the application.

When this value is set the product's system DLL is no longer required as a reference, as all unmanaged code is stored in that file.

Trappable Errors (CargoValidator Component)

CargoValidator Errors

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.