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org.hibernate.metamodel.source.annotations.xml.mocker.MockHelper Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2011, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc..
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.metamodel.source.annotations.xml.mocker;
import java.beans.Introspector;
import java.lang.reflect.Field;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.jboss.jandex.AnnotationInstance;
import org.jboss.jandex.AnnotationTarget;
import org.jboss.jandex.AnnotationValue;
import org.jboss.jandex.ClassInfo;
import org.jboss.jandex.DotName;
import org.jboss.jandex.FieldInfo;
import org.jboss.jandex.MethodInfo;
import org.jboss.jandex.Type;
import org.hibernate.HibernateException;
import org.hibernate.internal.jaxb.mapping.orm.JaxbCascadeType;
import org.hibernate.internal.util.StringHelper;
import org.hibernate.metamodel.source.annotations.JPADotNames;
import org.hibernate.service.ServiceRegistry;
import org.hibernate.service.classloading.spi.ClassLoaderService;
/**
* @author Strong Liu
*/
public class MockHelper {
static final AnnotationValue[] EMPTY_ANNOTATION_VALUE_ARRAY = new AnnotationValue[0];
static final Type[] EMPTY_TYPE_ARRAY = new Type[0];
/**
* util method for String Array attribute Annotation
*
* @param name
* @param values
* @param annotationValueList
*/
static void stringArrayValue(String name, List values, List annotationValueList) {
if ( isNotEmpty( values ) ) {
AnnotationValue[] annotationValues = new AnnotationValue[values.size()];
for ( int j = 0; j < values.size(); j++ ) {
annotationValues[j] = stringValue( "", values.get( j ) );
}
annotationValueList.add(
AnnotationValue.createArrayValue(
name, annotationValues
)
);
}
}
/**
* util method for single string attribute Annotation only
*/
static AnnotationValue[] stringValueArray(String name, String value) {
return nullSafe( stringValue( name, value ) );
}
private static AnnotationValue stringValue(String name, String value) {
if ( StringHelper.isNotEmpty( value ) ) {
return AnnotationValue.createStringValue( name, value );
}
return null;
}
static void stringValue(String name, String value, List annotationValueList) {
addToCollectionIfNotNull( annotationValueList, stringValue( name, value ) );
}
private static AnnotationValue integerValue(String name, Integer value) {
if ( value == null ) {
return null;
}
return AnnotationValue.createIntegerValue( name, value );
}
static void integerValue(String name, Integer value, List annotationValueList) {
addToCollectionIfNotNull( annotationValueList, integerValue( name, value ) );
}
static AnnotationValue[] booleanValueArray(String name, Boolean value) {
return nullSafe( booleanValue( name, value ) );
}
static void booleanValue(String name, Boolean value, List annotationValueList) {
addToCollectionIfNotNull( annotationValueList, booleanValue( name, value ) );
}
private static AnnotationValue booleanValue(String name, Boolean value) {
if ( value == null ) {
return null;
}
return AnnotationValue.createBooleanValue( name, value );
}
private static AnnotationValue classValue(String name, String className, ServiceRegistry serviceRegistry) {
if ( StringHelper.isNotEmpty( className ) ) {
return AnnotationValue.createClassValue( name, getType( className, serviceRegistry ) );
}
return null;
}
static void classValue(String name, String className, List list, ServiceRegistry serviceRegistry) {
addToCollectionIfNotNull( list, classValue( name, className, serviceRegistry ) );
}
static AnnotationValue[] classValueArray(String name, String className, ServiceRegistry serviceRegistry) {
return nullSafe( classValue( name, className, serviceRegistry ) );
}
static AnnotationValue nestedAnnotationValue(String name, AnnotationInstance value) {
if ( value == null ) {
return null;
}
return AnnotationValue.createNestedAnnotationValue(
name, value
);
}
static void nestedAnnotationValue(String name, AnnotationInstance value, List list) {
addToCollectionIfNotNull( list, nestedAnnotationValue( name, value ) );
}
private static AnnotationValue[] nullSafe(AnnotationValue value) {
return value == null ? EMPTY_ANNOTATION_VALUE_ARRAY : new AnnotationValue[] {
value
};
}
static void classArrayValue(String name, List classNameList, List list, ServiceRegistry serviceRegistry) {
if ( isNotEmpty( classNameList ) ) {
List clazzValueList = new ArrayList( classNameList.size() );
for ( String clazz : classNameList ) {
addToCollectionIfNotNull( clazzValueList, classValue( "", clazz, serviceRegistry ) );
}
list.add(
AnnotationValue.createArrayValue(
name, toArray( clazzValueList )
)
);
}
}
public static AnnotationValue[] toArray(List list) {
AnnotationValue[] values = EMPTY_ANNOTATION_VALUE_ARRAY;
if ( isNotEmpty( list ) ) {
values = list.toArray( new AnnotationValue[list.size()] );
}
return values;
}
private static AnnotationValue enumValue(String name, DotName typeName, Enum value) {
if ( value != null && StringHelper.isNotEmpty( value.toString() ) ) {
return AnnotationValue.createEnumValue( name, typeName, value.toString() );
}
return null;
}
static void cascadeValue(String name, JaxbCascadeType cascadeType, boolean isCascadePersistDefault, List annotationValueList) {
List enumList = new ArrayList();
if ( isCascadePersistDefault ) {
enumList.add( javax.persistence.CascadeType.PERSIST );
}
if ( cascadeType != null ) {
if ( cascadeType.getCascadeAll() != null ) {
enumList.add( javax.persistence.CascadeType.ALL );
}
if ( cascadeType.getCascadePersist() != null && !isCascadePersistDefault ) {
enumList.add( javax.persistence.CascadeType.PERSIST );
}
if ( cascadeType.getCascadeMerge() != null ) {
enumList.add( javax.persistence.CascadeType.MERGE );
}
if ( cascadeType.getCascadeRemove() != null ) {
enumList.add( javax.persistence.CascadeType.REMOVE );
}
if ( cascadeType.getCascadeRefresh() != null ) {
enumList.add( javax.persistence.CascadeType.REFRESH );
}
if ( cascadeType.getCascadeDetach() != null ) {
enumList.add( javax.persistence.CascadeType.DETACH );
}
}
if ( !enumList.isEmpty() ) {
MockHelper.enumArrayValue( name, JPADotNames.CASCADE_TYPE, enumList, annotationValueList );
}
}
static void enumArrayValue(String name, DotName typeName, List valueList, List list) {
if ( isNotEmpty( valueList ) ) {
List enumValueList = new ArrayList( valueList.size() );
for ( Enum e : valueList ) {
addToCollectionIfNotNull( enumValueList, enumValue( "", typeName, e ) );
}
list.add(
AnnotationValue.createArrayValue(
name, toArray( enumValueList )
)
);
}
}
static void enumValue(String name, DotName typeName, Enum value, List list) {
addToCollectionIfNotNull( list, enumValue( name, typeName, value ) );
}
static AnnotationValue[] enumValueArray(String name, DotName typeName, Enum value) {
return nullSafe( enumValue( name, typeName, value ) );
}
public static void addToCollectionIfNotNull(Collection collection, Object value) {
if ( value != null && collection != null ) {
collection.add( value );
}
}
/**
* @param t1 can't be null
* @param t2 can't be null
*/
public static boolean targetEquals(AnnotationTarget t1, AnnotationTarget t2) {
if ( t1 == t2 ) {
return true;
}
if ( t1 != null && t2 != null ) {
if ( t1.getClass() == t2.getClass() ) {
if ( t1.getClass() == ClassInfo.class ) {
return ( (ClassInfo) t1 ).name().equals( ( (ClassInfo) t2 ).name() );
}
else if ( t1.getClass() == MethodInfo.class ) {
return ( (MethodInfo) t1 ).name().equals( ( (MethodInfo) t2 ).name() );
}
else {
return ( (FieldInfo) t1 ).name().equals( ( (FieldInfo) t2 ).name() );
}
}
}
return false;
}
public static boolean isNotEmpty(Collection collection) {
return collection != null && !collection.isEmpty();
}
static AnnotationInstance create(DotName name, AnnotationTarget target, List annotationValueList) {
return create(
name, target, toArray( annotationValueList )
);
}
static String buildSafeClassName(String className, String defaultPackageName) {
if ( className.indexOf( '.' ) < 0 && StringHelper.isNotEmpty( defaultPackageName ) ) {
className = StringHelper.qualify( defaultPackageName, className );
}
return className;
}
static AnnotationInstance create(DotName name, AnnotationTarget target, AnnotationValue[] values) {
if ( values == null || values.length == 0 ) {
values = EMPTY_ANNOTATION_VALUE_ARRAY;
}
return AnnotationInstance.create( name, target, addMockMark( values ) );
}
private static AnnotationValue[] addMockMark(AnnotationValue[] values) {
AnnotationValue[] newValues = new AnnotationValue[values.length + 1];
System.arraycopy( values, 0, newValues, 0, values.length );
newValues[values.length] = booleanValue( "isMocked", true );
return newValues;
}
private static MethodInfo getMethodInfo(ClassInfo classInfo, Method method) {
Class returnTypeClass = method.getReturnType();
short access_flags = (short) method.getModifiers();
return MethodInfo.create(
classInfo,
method.getName(),
getTypes( method.getParameterTypes() ),
getType( returnTypeClass ),
access_flags
);
}
enum TargetType {METHOD, FIELD, PROPERTY}
static AnnotationTarget getTarget(ServiceRegistry serviceRegistry, ClassInfo classInfo, String name, TargetType type) {
Class clazz = serviceRegistry.getService( ClassLoaderService.class ).classForName( classInfo.toString() );
switch ( type ) {
case FIELD:
Field field = getField( clazz, name );
if ( field == null ) {
throw new HibernateException(
"Unable to load field "
+ name
+ " of class " + clazz.getName()
);
}
return FieldInfo.create(
classInfo, name, getType( field.getType() ), (short) ( field.getModifiers() )
);
case METHOD:
Method method = getMethod( clazz, name );
if ( method == null ) {
throw new HibernateException(
"Unable to load method "
+ name
+ " of class " + clazz.getName()
);
}
return getMethodInfo( classInfo, method );
case PROPERTY:
method = getterMethod( clazz, name );
if ( method == null ) {
throw new HibernateException(
"Unable to load property "
+ name
+ " of class " + clazz.getName()
);
}
return getMethodInfo( classInfo, method );
}
throw new HibernateException( "" );
}
//copied from org.hibernate.internal.util.ReflectHelper
private static Method getterMethod(Class theClass, String propertyName) {
Method[] methods = theClass.getDeclaredMethods();
Method.setAccessible( methods, true );
for ( Method method : methods ) {
// if the method has parameters, skip it
if ( method.getParameterTypes().length != 0 ) {
continue;
}
// if the method is a "bridge", skip it
if ( method.isBridge() ) {
continue;
}
final String methodName = method.getName();
// try "get"
if ( methodName.startsWith( "get" ) || methodName.startsWith( "has" ) ) {
String testStdMethod = Introspector.decapitalize( methodName.substring( 3 ) );
String testOldMethod = methodName.substring( 3 );
if ( testStdMethod.equals( propertyName ) || testOldMethod.equals( propertyName ) ) {
return method;
}
}
// if not "get", then try "is"
if ( methodName.startsWith( "is" ) ) {
String testStdMethod = Introspector.decapitalize( methodName.substring( 2 ) );
String testOldMethod = methodName.substring( 2 );
if ( testStdMethod.equals( propertyName ) || testOldMethod.equals( propertyName ) ) {
return method;
}
}
}
return null;
}
private static Method getMethod(Class theClass, String propertyName) {
Method[] methods = theClass.getDeclaredMethods();
Method.setAccessible( methods, true );
for ( Method method : methods ) {
// if the method has parameters, skip it
if ( method.getParameterTypes().length != 0 ) {
continue;
}
// if the method is a "bridge", skip it
if ( method.isBridge() ) {
continue;
}
final String methodName = method.getName();
if ( methodName.equals( propertyName ) ) {
return method;
}
}
return null;
}
private static Field getField(Class clazz, String name) {
Field[] fields = clazz.getDeclaredFields();
Field.setAccessible( fields, true );
for ( Field field : fields ) {
if ( field.getName().equals( name ) ) {
return field;
}
}
return null;
}
private static Type[] getTypes(Class[] classes) {
if ( classes == null || classes.length == 0 ) {
return EMPTY_TYPE_ARRAY;
}
Type[] types = new Type[classes.length];
for ( int i = 0; i < types.length; i++ ) {
types[i] = getType( classes[i] );
}
return types;
}
private static Type getType(String className, ServiceRegistry serviceRegistry) {
return getType( serviceRegistry.getService( ClassLoaderService.class ).classForName( className ) );
}
private static Type getType(Class clazz) {
return Type.create( DotName.createSimple( clazz.getName() ), getTypeKind( clazz ) );
}
private static Type.Kind getTypeKind(Class clazz) {
Type.Kind kind;
if ( clazz == Void.TYPE ) {
kind = Type.Kind.VOID;
}
else if ( clazz.isPrimitive() ) {
kind = Type.Kind.PRIMITIVE;
}
else if ( clazz.isArray() ) {
kind = Type.Kind.ARRAY;
}
else {
kind = Type.Kind.CLASS;
}
return kind;
}
}
