Examples of co.cask.tigon.internal.io.ReflectionSchemaGenerator

co.cask.tigon.internal.io.ReflectionSchemaGenerator

This class uses Java Reflection to inspect fields in any Java class to generate RECORD schema.

If the given type is a class, it will uses the class fields (includes all the fields in parent classes) to generate the schema. All fields, no matter what access it is would be included, except transient or synthetic one.

If the given type is an interface, it will uses all getter methods (methods that prefix with "get" or "is", followed by a name with no arguments) to generate fields for the record schema. E.g. for the method {@code String getFirstName()}, a field name "firstName" of type String would be generated.

   * instantiate an object of type outputClass
   */
  public POJOCreator(Class<?> outputClass, Schema schema) throws UnsupportedTypeException {
    this.schema = schema;
    this.outputClass = outputClass;
    this.outputGenerator = new ReflectionDatumReader(new ReflectionSchemaGenerator().generate(outputClass, false),
                                                     TypeToken.of(outputClass));
  }


  private static InputSupplier<InputStream> getInputSupplier(final FlowSpecification flowSpec) {
    return new InputSupplier<InputStream>() {
      @Override
      public InputStream getInput() throws IOException {
        String json = FlowSpecificationAdapter.create(new ReflectionSchemaGenerator()).toJson(flowSpec);
        return new ByteArrayInputStream(json.getBytes(Charsets.UTF_8));
      }
    };
  }

Examples of co.cask.tigon.internal.io.ReflectionSchemaGenerator

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