/*******************************************************************************
* Copyright 2013 SAP AG
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
package com.sap.core.odata.processor.core.jpa.access.model;
import java.lang.reflect.AnnotatedElement;
import java.lang.reflect.Field;
import javax.persistence.Column;
import javax.persistence.metamodel.Attribute;
import javax.persistence.metamodel.ManagedType;
import javax.persistence.metamodel.PluralAttribute;
import com.sap.core.odata.api.edm.FullQualifiedName;
import com.sap.core.odata.api.edm.provider.Association;
import com.sap.core.odata.api.edm.provider.AssociationSet;
import com.sap.core.odata.api.edm.provider.ComplexProperty;
import com.sap.core.odata.api.edm.provider.ComplexType;
import com.sap.core.odata.api.edm.provider.EntityType;
import com.sap.core.odata.api.edm.provider.Mapping;
import com.sap.core.odata.api.edm.provider.NavigationProperty;
import com.sap.core.odata.processor.api.jpa.access.JPAEdmMappingModelAccess;
import com.sap.core.odata.processor.api.jpa.exception.ODataJPAModelException;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmAssociationEndView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmAssociationSetView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmAssociationView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmBaseView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmComplexPropertyView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmEntityContainerView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmEntitySetView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmEntityTypeView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmMapping;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmNavigationPropertyView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmPropertyView;
import com.sap.core.odata.processor.api.jpa.model.JPAEdmSchemaView;
import com.sap.core.odata.processor.core.jpa.model.JPAEdmComplexType;
import com.sap.core.odata.processor.core.jpa.model.JPAEdmMappingImpl;
public class JPAEdmNameBuilder {
private static final String ENTITY_CONTAINER_SUFFIX = "Container";
private static final String ENTITY_SET_SUFFIX = "s";
private static final String ASSOCIATIONSET_SUFFIX = "Set";
private static final String NAVIGATION_NAME = "Details";
private static final String UNDERSCORE = "_";
public static FullQualifiedName build(final JPAEdmBaseView view, final String name) {
FullQualifiedName fqName = new FullQualifiedName(buildNamespace(view),
name);
return fqName;
}
/*
* ************************************************************************
* EDM EntityType Name - RULES
* ************************************************************************
* EDM Entity Type Name = JPA Entity Name EDM Entity Type Internal Name =
* JPA Entity Name
* ************************************************************************
* EDM Entity Type Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmEntityTypeView view) {
EntityType edmEntityType = view.getEdmEntityType();
String jpaEntityName = view.getJPAEntityType().getName();
JPAEdmMappingModelAccess mappingModelAccess = view
.getJPAEdmMappingModelAccess();
String edmEntityTypeName = null;
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
edmEntityTypeName = mappingModelAccess
.mapJPAEntityType(jpaEntityName);
}
JPAEdmMapping mapping = new JPAEdmMappingImpl();
mapping.setJPAType(view.getJPAEntityType().getJavaType());
if (edmEntityTypeName == null) {
edmEntityTypeName = jpaEntityName;
}
//Setting the mapping object
edmEntityType.setMapping(((Mapping) mapping)
.setInternalName(jpaEntityName));
edmEntityType.setName(edmEntityTypeName);
}
/*
* ************************************************************************
* EDM Schema Name - RULES
* ************************************************************************
* Java Persistence Unit name is set as Schema's Namespace
* ************************************************************************
* EDM Schema Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmSchemaView view)
throws ODataJPAModelException {
view.getEdmSchema().setNamespace(buildNamespace(view));
}
/*
* ************************************************************************
* EDM Property Name - RULES
* ************************************************************************
* OData Property Names are represented in Camel Case. The first character
* of JPA Attribute Name is converted to an UpperCase Character and set as
* OData Property Name. JPA Attribute Name is set as Internal Name for OData
* Property. The Column name (annotated as @Column(name="x")) is set as
* column name in the mapping object.
* ************************************************************************
* EDM Property Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmPropertyView view, final boolean isComplexMode) {
Attribute<?, ?> jpaAttribute = view.getJPAAttribute();
String jpaAttributeName = jpaAttribute.getName();
String propertyName = null;
JPAEdmMappingModelAccess mappingModelAccess = view
.getJPAEdmMappingModelAccess();
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
if (isComplexMode) {
propertyName = mappingModelAccess
.mapJPAEmbeddableTypeAttribute(view
.getJPAEdmComplexTypeView()
.getJPAEmbeddableType().getJavaType()
.getSimpleName(), jpaAttributeName);
} else {
propertyName = mappingModelAccess.mapJPAAttribute(
view.getJPAEdmEntityTypeView().getJPAEntityType()
.getName(), jpaAttributeName);
}
}
if (propertyName == null) {
propertyName = Character.toUpperCase(jpaAttributeName.charAt(0))
+ jpaAttributeName.substring(1);
}
view.getEdmSimpleProperty().setName(propertyName);
JPAEdmMapping mapping = new JPAEdmMappingImpl();
((Mapping) mapping).setInternalName(jpaAttributeName);
mapping.setJPAType(jpaAttribute.getJavaType());
AnnotatedElement annotatedElement = (AnnotatedElement) jpaAttribute
.getJavaMember();
if (annotatedElement != null) {
Column column = annotatedElement.getAnnotation(Column.class);
if (column != null) {
mapping.setJPAColumnName(column.name());
}
} else {
ManagedType<?> managedType = jpaAttribute.getDeclaringType();
if (managedType != null) {
Class<?> clazz = managedType.getJavaType();
try {
Field field = clazz.getDeclaredField(jpaAttributeName);
Column column = field.getAnnotation(Column.class);
if (column != null) {
mapping.setJPAColumnName(column.name());
}
} catch (SecurityException e) {
} catch (NoSuchFieldException e) {
}
}
}
view.getEdmSimpleProperty().setMapping((Mapping) mapping);
}
/*
* ************************************************************************
* EDM EntityContainer Name - RULES
* ************************************************************************
* Entity Container Name = EDM Namespace + Literal "Container"
* ************************************************************************
* EDM EntityContainer Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmEntityContainerView view) {
view.getEdmEntityContainer().setName(
buildNamespace(view) + ENTITY_CONTAINER_SUFFIX);
}
/*
* ************************************************************************
* EDM EntitySet Name - RULES
* ************************************************************************
* Entity Set Name = JPA Entity Type Name + Literal "s"
* ************************************************************************
* EDM EntitySet Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmEntitySetView view,
final JPAEdmEntityTypeView entityTypeView) {
FullQualifiedName fQname = view.getEdmEntitySet().getEntityType();
JPAEdmMappingModelAccess mappingModelAccess = view
.getJPAEdmMappingModelAccess();
String entitySetName = null;
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
Mapping mapping = entityTypeView.getEdmEntityType().getMapping();
if (mapping != null) {
entitySetName = mappingModelAccess.mapJPAEntitySet(mapping
.getInternalName());
}
}
if (entitySetName == null) {
entitySetName = fQname.getName() + ENTITY_SET_SUFFIX;
}
view.getEdmEntitySet().setName(entitySetName);
}
/*
* ************************************************************************
* EDM Complex Type Name - RULES
* ************************************************************************
* Complex Type Name = JPA Embeddable Type Simple Name.
* ************************************************************************
* EDM Complex Type Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmComplexType view) {
JPAEdmMappingModelAccess mappingModelAccess = view
.getJPAEdmMappingModelAccess();
String jpaEmbeddableTypeName = view.getJPAEmbeddableType()
.getJavaType().getSimpleName();
String edmComplexTypeName = null;
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
edmComplexTypeName = mappingModelAccess
.mapJPAEmbeddableType(jpaEmbeddableTypeName);
}
if (edmComplexTypeName == null) {
edmComplexTypeName = jpaEmbeddableTypeName;
}
ComplexType complexType = view.getEdmComplexType();
complexType.setName(edmComplexTypeName);
JPAEdmMapping mapping = new JPAEdmMappingImpl();
mapping.setJPAType(view.getJPAEmbeddableType().getJavaType());
complexType.setMapping((Mapping) mapping);
}
/*
* ************************************************************************
* EDM Complex Property Name - RULES
* ************************************************************************
* The first character of JPA complex attribute name is converted to
* uppercase. The modified JPA complex attribute name is assigned as EDM
* complex property name. The unmodified JPA complex attribute name is
* assigned as internal name.
* ************************************************************************
* EDM Complex Property Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmComplexPropertyView complexView,
final JPAEdmPropertyView propertyView) {
ComplexProperty complexProperty = complexView.getEdmComplexProperty();
String jpaAttributeName = propertyView.getJPAAttribute().getName();
String jpaEntityTypeName = propertyView.getJPAEdmEntityTypeView()
.getJPAEntityType().getName();
JPAEdmMappingModelAccess mappingModelAccess = complexView
.getJPAEdmMappingModelAccess();
String propertyName = null;
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
propertyName = mappingModelAccess.mapJPAAttribute(
jpaEntityTypeName, jpaAttributeName);
}
if (propertyName == null) {
propertyName = Character.toUpperCase(jpaAttributeName.charAt(0))
+ jpaAttributeName.substring(1);
}
// change for navigation property issue
JPAEdmMapping mapping = new JPAEdmMappingImpl();
((Mapping) mapping).setInternalName(jpaAttributeName);
mapping.setJPAType(propertyView.getJPAAttribute().getJavaType());
complexProperty.setMapping((Mapping) mapping);
complexProperty.setName(propertyName);
}
public static void build(final JPAEdmComplexPropertyView complexView, final String parentComplexTypeName)
{
ComplexProperty complexProperty = complexView.getEdmComplexProperty();
JPAEdmMappingModelAccess mappingModelAccess = complexView.getJPAEdmMappingModelAccess();
JPAEdmPropertyView propertyView = ((JPAEdmPropertyView) complexView);
String jpaAttributeName = propertyView.getJPAAttribute().getName();
String propertyName = null;
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
propertyName = mappingModelAccess.mapJPAEmbeddableTypeAttribute(
parentComplexTypeName, jpaAttributeName);
}
if (propertyName == null) {
propertyName = Character.toUpperCase(jpaAttributeName.charAt(0))
+ jpaAttributeName.substring(1);
}
JPAEdmMapping mapping = new JPAEdmMappingImpl();
((Mapping) mapping).setInternalName(jpaAttributeName);
mapping.setJPAType(propertyView.getJPAAttribute().getJavaType());
complexProperty.setMapping((Mapping) mapping);
complexProperty.setName(propertyName);
}
/*
* ************************************************************************
* EDM Association End Name - RULES
* ************************************************************************
* Association End name = Namespace + Entity Type Name
* ************************************************************************
* EDM Association End Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmAssociationEndView assocaitionEndView,
final JPAEdmEntityTypeView entityTypeView, final JPAEdmPropertyView propertyView) {
String namespace = buildNamespace(assocaitionEndView);
String name = entityTypeView.getEdmEntityType().getName();
FullQualifiedName fQName = new FullQualifiedName(namespace, name);
assocaitionEndView.getEdmAssociationEnd1().setType(fQName);
name = null;
String jpaEntityTypeName = null;
Attribute<?, ?> jpaAttribute = propertyView.getJPAAttribute();
if (jpaAttribute.isCollection()) {
jpaEntityTypeName = ((PluralAttribute<?, ?, ?>) jpaAttribute).getElementType().getJavaType()
.getSimpleName();
} else {
jpaEntityTypeName = propertyView.getJPAAttribute().getJavaType()
.getSimpleName();
}
JPAEdmMappingModelAccess mappingModelAccess = assocaitionEndView
.getJPAEdmMappingModelAccess();
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
name = mappingModelAccess.mapJPAEntityType(jpaEntityTypeName);
}
if (name == null) {
name = jpaEntityTypeName;
}
fQName = new FullQualifiedName(namespace, name);
assocaitionEndView.getEdmAssociationEnd2().setType(fQName);
}
private static String buildNamespace(final JPAEdmBaseView view) {
JPAEdmMappingModelAccess mappingModelAccess = view
.getJPAEdmMappingModelAccess();
String namespace = null;
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
namespace = mappingModelAccess.mapJPAPersistenceUnit(view
.getpUnitName());
}
if (namespace == null) {
namespace = view.getpUnitName();
}
return namespace;
}
/*
* ************************************************************************
* EDM Association Name - RULES
* ************************************************************************
* Association name = Association + End1 Name + End2 Name
* ************************************************************************
* EDM Association Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmAssociationView view, final int count) {
Association association = view.getEdmAssociation();
String associationName = null;
String end1Name = association.getEnd1().getType().getName();
String end2Name = association.getEnd2().getType().getName();
if (end1Name.compareToIgnoreCase(end2Name) > 0) {
associationName = end2Name + UNDERSCORE + end1Name;
} else {
associationName = end1Name + UNDERSCORE + end2Name;
}
if (count > 1) {
associationName = associationName + Integer.toString(count - 1);
}
association.setName(associationName);
}
/*
* ************************************************************************
* EDM Association Set Name - RULES
* ************************************************************************
* Association Set name = Association Name + "Set"
* ************************************************************************
* EDM Association Set Name - RULES
* ************************************************************************
*/
public static void build(final JPAEdmAssociationSetView view) {
AssociationSet associationSet = view.getEdmAssociationSet();
String name = view.getEdmAssociation().getName();
associationSet.setName(name + ASSOCIATIONSET_SUFFIX);
}
public static void build(final JPAEdmAssociationView associationView,
final JPAEdmPropertyView propertyView,
final JPAEdmNavigationPropertyView navPropertyView, final int count) {
String toName = null;
String fromName = null;
String navPropName = null;
NavigationProperty navProp = navPropertyView.getEdmNavigationProperty();
String namespace = buildNamespace(associationView);
Association association = associationView.getEdmAssociation();
navProp.setRelationship(new FullQualifiedName(namespace, association
.getName()));
FullQualifiedName associationEndTypeOne = association.getEnd1()
.getType();
FullQualifiedName associationEndTypeTwo = association.getEnd2()
.getType();
Attribute<?, ?> jpaAttribute = propertyView.getJPAAttribute();
navProp.setMapping(new Mapping().setInternalName(jpaAttribute.getName()));
String jpaEntityTypeName = propertyView.getJPAEdmEntityTypeView()
.getJPAEntityType().getName();
JPAEdmMappingModelAccess mappingModelAccess = navPropertyView
.getJPAEdmMappingModelAccess();
String targetEntityTypeName = null;
if (jpaAttribute.isCollection()) {
targetEntityTypeName = ((PluralAttribute<?, ?, ?>) jpaAttribute).getElementType().getJavaType().getSimpleName();
} else {
targetEntityTypeName = jpaAttribute.getJavaType().getSimpleName();
}
if (mappingModelAccess != null
&& mappingModelAccess.isMappingModelExists()) {
navPropName = mappingModelAccess.mapJPARelationship(
jpaEntityTypeName, jpaAttribute.getName());
toName = mappingModelAccess.mapJPAEntityType(targetEntityTypeName);
fromName = mappingModelAccess
.mapJPAEntityType(jpaEntityTypeName);
}
if (toName == null) {
toName = targetEntityTypeName;
}
if (fromName == null) {
fromName = jpaEntityTypeName;
}
if (navPropName == null) {
navPropName = toName.concat(NAVIGATION_NAME);
}
if (count > 1) {
navPropName = navPropName + Integer.toString(count - 1);
}
navProp.setName(navPropName);
if (toName.equals(associationEndTypeOne.getName())) {
navProp.setFromRole(association.getEnd2().getRole());
navProp.setToRole(association.getEnd1().getRole());
} else if (toName.equals(associationEndTypeTwo.getName())) {
navProp.setToRole(association.getEnd2().getRole());
navProp.setFromRole(association.getEnd1().getRole());
}
}
}