com.inspiresoftware.lib.dto.geda.examples.usecases.dsl.RunDSLGeneric Maven / Gradle / Ivy

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Provides several examples of use of GeDA
There is a newer version: 3.2.0
/*
 * This code is distributed under The GNU Lesser General Public License (LGPLv3)
 * Please visit GNU site for LGPLv3 http://www.gnu.org/copyleft/lesser.html
 *
 * Copyright Denis Pavlov 2009
 * Web: http://www.genericdtoassembler.org
 * SVN: https://svn.code.sf.net/p/geda-genericdto/code/trunk/
 * SVN (mirror): http://geda-genericdto.googlecode.com/svn/trunk/
 */

package com.inspiresoftware.lib.dto.geda.examples.usecases.dsl;

import com.inspiresoftware.lib.dto.geda.adapter.BeanFactory;
import com.inspiresoftware.lib.dto.geda.adapter.EntityRetriever;
import com.inspiresoftware.lib.dto.geda.adapter.ExtensibleBeanFactory;
import com.inspiresoftware.lib.dto.geda.adapter.ValueConverter;
import com.inspiresoftware.lib.dto.geda.assembler.DTOAssembler;
import com.inspiresoftware.lib.dto.geda.dsl.Registries;
import com.inspiresoftware.lib.dto.geda.examples.usecases.SimpleMapExtensibleBeanFactory;

import java.util.HashMap;
import java.util.Map;

import static org.junit.Assert.*;

/**
 * User: denispavlov
 * Date: 13-04-22
 * Time: 5:59 PM
 */
public class RunDSLGeneric {

    /**
     * Example of most common use case for mapping to generic entity (i.e. full runtime discovery).
     */
    public void generic() {


        final ExtensibleBeanFactory bf = new SimpleMapExtensibleBeanFactory();

        final com.inspiresoftware.lib.dto.geda.dsl.Registry registry = Registries.registry(bf);

        bf.registerDto("myDto", MyDtoClass.class.getCanonicalName());
        bf.registerEntity("myEntity", MyEntityClass.class.getCanonicalName(), MyEntity.class.getCanonicalName());
        bf.registerDto("myDtoField3Dto", MyDtoField3Class.class.getCanonicalName());
        bf.registerEntity("myEntityField3Entity", MyEntityField3Class.class.getCanonicalName(), MyEntityField3Class.class.getCanonicalName());
        bf.registerDto("field4ParentDto", MyDtoField4Class.class.getCanonicalName());
        bf.registerEntity("field4ParentEntity", MyEntityField4Class.class.getCanonicalName(), MyEntityField4Class.class.getCanonicalName());
        bf.registerEntity("field2", MyEntityField2Class.class.getCanonicalName(), MyEntityField2Class.class.getCanonicalName());

        registry
                // main mapping
                .dto("myDto").forEntityGeneric()
                // field 1
                .withField("field1").forField("field1")
                .readOnly()
                .converter("field1Converter")
                        // field 2
                .and()
                .withField("field2").forField("field2.subField1").entityBeanKeys("field2")
                // field 3
                .and()
                .withField("field3")
                .dtoBeanKey("myDtoField3Dto")
                .entityBeanKeys("myEntityField3Entity")
                        // field 4
                .and()
                .withField("field4parent")
                .dtoBeanKey("field4ParentDto")
                .entityBeanKeys("field4ParentEntity")
                .dtoParent("id")
                .retriever("parentFieldEntityById")
                        // field 5
                .and()
                .withField("field5virtual").forVirtual()
                .converter("field5VirtualConverter")
                        // field 6
                .and()
                .withCollection("field6").forField("field6")
                .dtoBeanKey("field6CollectionDtoItem")
                .entityBeanKeys("field6CollectionEntityItem")
                .dtoToEntityMatcherKey("field6CollectionMatcher")
                        // field 7
                .and()
                .withMap("field7").forField("field7")
                .dtoBeanKey("field7MapDtoItem")
                .entityBeanKeys("field7MapEntityItem")
                .dtoToEntityMatcherKey("field7MapMatcher")
        ;

        registry
                .dto("myDtoField3Dto").forEntityGeneric()
                .withField("subField1")
        ;

        registry
                .dto("field4ParentDto").forEntityGeneric()
                .withField("id")
                .and().withField("subField1")
        ;

        final Map conv = new HashMap();
        conv.put("field1Converter", new ValueConverter() {
            public Object convertToDto(final Object object, final BeanFactory beanFactory) {
                final MyEntity.Field1 field1 = (MyEntity.Field1) object;
                return Boolean.valueOf(field1 == MyEntity.Field1.YES);
            }

            public Object convertToEntity(final Object object, final Object oldEntity, final BeanFactory beanFactory) {
                if ((Boolean) object) {
                    return MyEntity.Field1.YES;
                }
                return MyEntity.Field1.NO;
            }
        });
        conv.put("field5VirtualConverter", new ValueConverter() {
            public Object convertToDto(final Object object, final BeanFactory beanFactory) {
                return String.valueOf(object.hashCode());
            }

            public Object convertToEntity(final Object object, final Object oldEntity, final BeanFactory beanFactory) {
                return null;
            }
        });
        conv.put("parentFieldEntityById", new EntityRetriever() {
            public Object retrieveByPrimaryKey(final Class entityInterface, final Class entityClass, final Object primaryKey) {
                final MyEntityField4Class parent = new MyEntityField4Class();
                parent.setId(99L);
                parent.setSubField1("Parent 99");
                return parent;
            }
        });

        // create asm for interface
        DTOAssembler.newAssembler(MyDtoClass.class, MyEntity.class, registry);

        final MyEntity entity = new MyEntityClass();

        entity.setField1(MyEntity.Field1.YES);

        entity.setField2(new MyEntityField2Class());
        entity.getField2().setSubField1("my sub data 1");

        entity.setField3(new MyEntityField3Class());
        entity.getField3().setSubField1("my sub data 2");

        entity.setField4parent(new MyEntityField4Class());
        entity.getField4parent().setId(99L);
        entity.getField4parent().setSubField1("Parent 99");

        final MyDtoClass dto = new MyDtoClass();

        // create asm for class and make sure it picks up on interface
        DTOAssembler.newAssembler(MyDtoClass.class, entity.getClass(), registry).assembleDto(dto, entity, conv, bf);

        assertTrue(dto.getField1());

        assertEquals(dto.getField2(), "my sub data 1");

        final MyDtoField3Class field3 = dto.getField3();
        assertNotNull(field3);
        assertEquals(field3.getSubField1(), "my sub data 2");

        final MyDtoField4Class field4 = dto.getField4parent();
        assertNotNull(field4);
        assertEquals(field4.getId(), Long.valueOf(99L));
        assertEquals(field4.getSubField1(), "Parent 99");

        assertEquals(dto.getField5virtual(), String.valueOf(entity.hashCode()));

        final MyEntity toEntity = new MyEntityClass();

        // create asm for class and make sure it picks up on interface
        DTOAssembler.newAssembler(MyDtoClass.class, entity.getClass(), registry).assembleEntity(dto, toEntity, conv, bf);

        assertNull(toEntity.getField1()); // it is read only

        assertNotNull(toEntity.getField2());
        assertEquals(toEntity.getField2().getSubField1(), "my sub data 1");

        assertNotNull(toEntity.getField3());
        assertEquals(toEntity.getField3().getSubField1(), "my sub data 2");

        assertNotNull(toEntity.getField4parent());
        assertEquals(toEntity.getField4parent().getId(), Long.valueOf(99L));
        assertEquals(toEntity.getField4parent().getSubField1(), "Parent 99");


    }


    public static void main(String[] args) {
        new RunDSLGeneric().generic();
    }

}