Package com.orchestranetworks.addon.dint.transformation

package com.orchestranetworks.addon.dint.transformation

Provides classes and interfaces to define and register transformations.

A transformation can be added to SourceFieldMappingStep, or TransformationMappingStep. You can execute multiple transformations as a chain.

For example:

  1. To capitalize string data before inserting it in the target table:

    - First, get SourceFieldMappingStep from TableMapping.

    - Use StringUpperCase transformation to perform uppercase conversion on the source field.

    - Finally, map to the target field.

  2. To add a prefix such as 'Mr/Ms' to a name field and insert into the target table:

    - First get ConstantTransformationMappingStep from TableMapping.

    - Use StringConcat transformation to concatenate with the name field from the source table.

    - Finally, map to the target field.

  3. To capitalize only the first name of the full name string and insert into the target table:

    - First, get SourceFieldMappingStep from TableMapping.

    - Use StringSplit transformation to split full name string into two variable 'firstName' and 'lastName'.

    - Use StringUpperCase transformation to perform uppercase conversion on the 'firstName' variable.

    - Use StringConcat transformation to concatenate with the variable 'lastName', the output of the previous split step.

    - Finally, map to the target field.

A custom transformation needs to be registered to be displayed in the mapping screen: 

        TransformationRegistry.getInstance().add(new ACustomTransformationDefinition());

The following is an example of a custom transformation function with a generic input structure: 

        public class AddressAggregate implements TransformationDefinition<GenericDataObject, String>
        {
            private static final InputDefinition INPUT_COUNTRY = new InputDefinition(
                "country",
                UserMessage.createInfo("Country"),
                UserMessage.createInfo("'Country' will be put at the end after concatenation."),
                DefaultDataTypes.STRING,
                false);

            private static final InputDefinition INPUT_CITY = new InputDefinition(
                "city",
                UserMessage.createInfo("City"),
                UserMessage.createInfo("'City' will be put before 'Country' after concatenation."),
                DefaultDataTypes.STRING,
                false);

            private static final InputDefinition INPUT_STREET = new InputDefinition(
                "street",
                UserMessage.createInfo("Street"),
                UserMessage.createInfo("'Street' will be put before 'City' after concatenation."),
                DefaultDataTypes.STRING,
                false);

            private static final InputDefinition INPUT_NUMBER = new InputDefinition(
                "number",
                UserMessage.createInfo("Number"),
                UserMessage.createInfo("'Number' will be put at the beginning after concatenation."),
                DefaultDataTypes.INTEGER,
                false);

            private static final OutputDefinition OUTPUT_ADDRESS = new OutputDefinition(
                "address",
                UserMessage.createInfo("Output address"),
                UserMessage.createInfo("Output address description"),
                DefaultDataTypes.STRING,
                false);


            public InputDefinition getInputDefinition()
            {
                return new InputDefinition(
                    "Complex input name",
                    "Complex input label",
                    "Complex input description",
                    Arrays.asList(INPUT_COUNTRY, INPUT_CITY, INPUT_STREET, INPUT_NUMBER));
            }

            public OutputDefinition getOutputDefinition()
            {
                return OUTPUT_ADDRESS;
            }

            public TransformationFunction<GenericDataObject, String> getFunction()
            {
                return new TransformationFunction<GenericDataObject, String>()
                {

                    public String transform(TransformationExecutionContext<GenericDataObject> context)
                        throws DataIntegrationException
                    {
                        GenericDataObject inputValue = context.getInputValue();
                        String country = inputValue.getValue(INPUT_COUNTRY.getName());
                        String city = inputValue.getValue(INPUT_CITY.getName());
                        String street = inputValue.getValue(INPUT_STREET.getName());
                        Integer number = inputValue.getValue(INPUT_NUMBER.getName());

                        String output = MessageFormat
                            .format("{0} {1} street, {2} city, {3}", number, street, city, country);

                        return output;
                    }
                };
            }

        }

The following is an example of a custom transformation function with a generic output structure: 

        public class SplitStringComplexOutput implements TransformationDefinition<String, GenericDataObject>
        {

            InputDefinition INPUT_STRING = new InputDefinition(
                "Information",
                DintAPIInfoMessages.get_Dint_Transform_StringSplitFunction_Input_Name(),
                DintAPIInfoMessages.get_Dint_Transform_StringSplitFunction_Input_Description(),
                DefaultDataTypes.STRING,
                false);

            private static final OutputDefinition OUTPUT_STRING = new OutputDefinition(
                "Name",
                UserMessage.createInfo("Name"),
                UserMessage.createInfo("Name description"),
                DefaultDataTypes.STRING,
                false);

            private static final OutputDefinition OUTPUT_INTEGER = new OutputDefinition(
                "Age",
                UserMessage.createInfo("Age"),
                UserMessage.createInfo("Age description"),
                DefaultDataTypes.INTEGER,
                false);

            public InputDefinition getInputDefinition()
            {
                return this.INPUT_STRING;
            }

            public OutputDefinition getOutputDefinition()
            {
                return new OutputDefinition(
                    "Complex output",
                    "Complex output label",
                    "Complex output description",
                    Arrays.asList(OUTPUT_STRING, OUTPUT_INTEGER));
            }

            public TransformationFunction<String, GenericDataObject> getFunction()
            {
                return new TransformationFunction<String, GenericDataObject>()
                {
                    public GenericDataObject transform(TransformationExecutionContext<String> context)
                        throws DataIntegrationException
                    {
                        String inputValue = context.getInputValue();

                        List<String> results = Arrays
                            .asList(inputValue.split(Pattern.quote(this.separator)));

                        String name = results.get(0);
                        Integer age = Integer.valueOf(results.get(1));

                        GenericDataObject complexData = GenericDataObject.newInstance();
                        complexData.setValue(OUTPUT_STRING.getName(), name);
                        complexData.setValue(OUTPUT_INTEGER.getName(), age);
                        return complexData;
                    }
                };
            }
        }

Please refer to the corresponding package for the detail and examples.