How to use

resolve

method

in

org.kaaproject.kaa.server.common.core.algorithms.override.ArrayOverrideStrategyResolver

@Test(expected = OverrideException.class)
public void testResolveFailsWhenSchemaForParentIsNotFound() throws Exception {
 Path schemaUrl = Paths.get(Thread.currentThread().getContextClassLoader().getResource("override/schema.json").toURI());
 DataSchema configurationSchema = new DataSchema(new String(Files.readAllBytes(schemaUrl)));
 SchemaGenerationAlgorithmFactory factory = new SchemaGenerationAlgorithmFactoryImpl();
 SchemaGenerationAlgorithm generator = factory.createSchemaGenerator(configurationSchema);
 KaaSchema baseSchemaString = generator.getBaseSchema();
 Schema.Parser baseParser = new Schema.Parser();
 baseParser.parse(baseSchemaString.getRawSchema());
 ArrayOverrideStrategyResolver arrayMergeStrategyResolver = new ArrayOverrideStrategyResolver(baseParser.getTypes());
 arrayMergeStrategyResolver.resolve("wrong_parent_name", "org.kaa.config", "child_name");
}

@Test
public void testStrategyIsResolvedToOverrideWhenFieldsDefinitionIsEmpty() throws Exception {
 Path schemaUrl = Paths.get(Thread.currentThread().getContextClassLoader().getResource("override/schema_for_array_merge_strategy_resolver_with_empty_fields_definition.json").toURI());
 DataSchema configurationSchema = new DataSchema(new String(Files.readAllBytes(schemaUrl)));
 SchemaGenerationAlgorithmFactory factory = new SchemaGenerationAlgorithmFactoryImpl();
 SchemaGenerationAlgorithm generator = factory.createSchemaGenerator(configurationSchema);
 KaaSchema baseSchemaString = generator.getBaseSchema();
 Schema.Parser baseParser = new Schema.Parser();
 baseParser.parse(baseSchemaString.getRawSchema());
 ArrayOverrideStrategyResolver arrayMergeStrategyResolver = new ArrayOverrideStrategyResolver(baseParser.getTypes());
 ArrayOverrideStrategy actualArrayMergeStrategy = arrayMergeStrategyResolver.resolve("testT", "org.kaa.config", "child_name");
 Assert.assertTrue(ArrayOverrideStrategy.REPLACE == actualArrayMergeStrategy);
}

 @Test
 public void testResolveSuccessForUnionWithArrayType() throws Exception {
  Path schemaUrl = Paths.get(Thread.currentThread().getContextClassLoader().getResource("override/schema_for_array_merge_strategy_resolver_with_array_in_union_type.json").toURI());
  DataSchema configurationSchema = new DataSchema(new String(Files.readAllBytes(schemaUrl)));

  SchemaGenerationAlgorithmFactory factory = new SchemaGenerationAlgorithmFactoryImpl();
  SchemaGenerationAlgorithm generator = factory.createSchemaGenerator(configurationSchema);

  KaaSchema baseSchemaString = generator.getBaseSchema();

  Schema.Parser baseParser = new Schema.Parser();
  baseParser.parse(baseSchemaString.getRawSchema());

  ArrayOverrideStrategyResolver arrayMergeStrategyResolver = new ArrayOverrideStrategyResolver(baseParser.getTypes());
  ArrayOverrideStrategy actualArrayMergeStrategy = arrayMergeStrategyResolver.resolve("testT", "org.kaa.config", "field1");
  Assert.assertTrue(ArrayOverrideStrategy.APPEND == actualArrayMergeStrategy);
 }
}

mergeStrategy = arrayMergeStrategyResolver.resolve(
    sourceRootSchema.getName(), sourceRootSchema.getNamespace(), sourceChildname);