package org.springframework.roo.classpath.details;
import java.util.ArrayList;
import java.util.List;
import org.apache.commons.lang3.Validate;
import org.springframework.roo.classpath.details.annotations.AnnotatedJavaType;
import org.springframework.roo.classpath.details.annotations.AnnotationMetadata;
import org.springframework.roo.classpath.details.annotations.AnnotationMetadataBuilder;
import org.springframework.roo.classpath.itd.MemberHoldingTypeDetailsMetadataItem;
import org.springframework.roo.classpath.scanner.MemberDetails;
import org.springframework.roo.model.CustomData;
import org.springframework.roo.model.JavaSymbolName;
import org.springframework.roo.model.JavaType;
/**
* Utility methods for finding members in {@link MemberHoldingTypeDetails}
* instances.
*
* @author Ben Alex
* @author Stefan Schmidt
* @author Andrew Swan
* @since 1.0
*/
public final class MemberFindingUtils {
/**
* Locates the metadata for an annotation of the specified type from within
* the given list.
*
* @param annotations the set of annotations to search (may be
* <code>null</code>)
* @param annotationType the annotation to locate (may be <code>null</code>)
* @return the annotation, or <code>null</code> if not found
*/
public static AnnotationMetadata getAnnotationOfType(
final List<? extends AnnotationMetadata> annotations,
final JavaType annotationType) {
if (annotations == null) {
return null;
}
for (final AnnotationMetadata annotation : annotations) {
if (annotation.getAnnotationType().equals(annotationType)) {
return annotation;
}
}
return null;
}
/**
* Returns the metadata for the annotation of the given type from within the
* given metadata
*
* @param metadata the metadata to search; can be <code>null</code>
* @param annotationType the type of annotation for which to return the
* metadata; can be <code>null</code>
* @return <code>null</code> if not found
* @since 1.2.0
*/
public static AnnotationMetadata getAnnotationOfType(
final MemberHoldingTypeDetailsMetadataItem<?> metadata,
final JavaType annotationType) {
if (metadata == null || metadata.getMemberHoldingTypeDetails() == null) {
return null;
}
return getAnnotationOfType(metadata.getMemberHoldingTypeDetails()
.getAnnotations(), annotationType);
}
/**
* Searches all {@link MemberDetails} and returns all constructors.
*
* @param memberDetails the {@link MemberDetails} to search (required)
* @return zero or more constructors (never null)
* @deprecated use {@link MemberDetails#getConstructors()} instead
*/
@Deprecated
public static List<ConstructorMetadata> getConstructors(
final MemberDetails memberDetails) {
return memberDetails.getConstructors();
}
/**
* Locates the specified constructor.
*
* @param memberHoldingTypeDetails the {@link MemberHoldingTypeDetails} to
* search (required)
* @param parameters to locate (can be null if there are no parameters)
* @return the constructor, or null if not found
* @deprecated use
* {@link MemberHoldingTypeDetails#getDeclaredConstructor(List)}
* instead
*/
@Deprecated
public static ConstructorMetadata getDeclaredConstructor(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final List<JavaType> parameters) {
return memberHoldingTypeDetails.getDeclaredConstructor(parameters);
}
/**
* Locates the specified field of the given {@link MemberHoldingTypeDetails}
* .
*
* @param memberHoldingTypeDetails the {@link MemberHoldingTypeDetails} to
* search (required)
* @param fieldName to locate (required)
* @return the field, or null if not found
* @deprecated call
* {@link MemberHoldingTypeDetails#getDeclaredField(JavaSymbolName)}
* instead
*/
@Deprecated
public static FieldMetadata getDeclaredField(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final JavaSymbolName fieldName) {
return memberHoldingTypeDetails.getDeclaredField(fieldName);
}
/**
* Locates an inner type with the specified name.
*
* @param MemberDetails to search (required)
* @param typeName to locate (required)
* @deprecated use
* {@link MemberHoldingTypeDetails#getDeclaredInnerType(JavaType)}
* instead
*/
@Deprecated
public static ClassOrInterfaceTypeDetails getDeclaredInnerType(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final JavaType typeName) {
return memberHoldingTypeDetails.getDeclaredInnerType(typeName);
}
/**
* Locates a method on the specified {@link MemberHoldingTypeDetails} based
* on the method name.
*
* @param memberHoldingTypeDetails the {@link MemberHoldingTypeDetails} to
* search; can be <code>null</code>
* @param methodName to locate; can be <code>null</code>
* @return the method, or <code>null</code> if the given name was
* <code>null</code> or it was simply not found
*/
public static MethodMetadata getDeclaredMethod(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final JavaSymbolName methodName) {
if (memberHoldingTypeDetails == null) {
return null;
}
for (final MethodMetadata method : memberHoldingTypeDetails
.getDeclaredMethods()) {
if (method.getMethodName().equals(methodName)) {
return method;
}
}
return null;
}
/**
* Locates the specified method.
*
* @param memberHoldingTypeDetails the {@link MemberHoldingTypeDetails} to
* search; can be <code>null</code>
* @param methodName to locate; can be <code>null</code>
* @param parameters to locate (can be null if there are no parameters)
* @return the method, or <code>null</code> if the given name was
* <code>null</code> or it was simply not found
*/
public static MethodMetadata getDeclaredMethod(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final JavaSymbolName methodName, List<JavaType> parameters) {
if (memberHoldingTypeDetails == null) {
return null;
}
if (parameters == null) {
parameters = new ArrayList<JavaType>();
}
for (final MethodMetadata method : memberHoldingTypeDetails
.getDeclaredMethods()) {
if (method.getMethodName().equals(methodName)) {
final List<JavaType> parameterTypes = AnnotatedJavaType
.convertFromAnnotatedJavaTypes(method
.getParameterTypes());
if (parameterTypes.equals(parameters)) {
return method;
}
}
}
return null;
}
/**
* Locates the specified type-level annotation.
*
* @param builder the {@link MemberHoldingTypeDetails} to search (required)
* @param type to locate (required)
* @return the annotation, or null if not found
* @deprecated use
* {@link AbstractIdentifiableAnnotatedJavaStructureBuilder#getDeclaredTypeAnnotation(JavaType)}
* instead
*/
@Deprecated
public static AnnotationMetadataBuilder getDeclaredTypeAnnotation(
final AbstractIdentifiableAnnotatedJavaStructureBuilder<? extends IdentifiableAnnotatedJavaStructure> builder,
final JavaType type) {
return builder.getDeclaredTypeAnnotation(type);
}
/**
* Locates the specified type-level annotation.
*
* @param memberHoldingTypeDetails the {@link MemberHoldingTypeDetails} to
* search (required)
* @param type to locate (required)
* @return the annotation, or null if not found
* @deprecated use
* {@link IdentifiableAnnotatedJavaStructure#getAnnotation(JavaType)}
* instead
*/
@Deprecated
public static AnnotationMetadata getDeclaredTypeAnnotation(
final IdentifiableAnnotatedJavaStructure memberHoldingTypeDetails,
final JavaType type) {
return memberHoldingTypeDetails.getAnnotation(type);
}
/**
* Locates the specified type-level annotation.
*
* @param memberDetails the {@link MemberDetails} to search (required)
* @param type to locate (required)
* @return the annotation, or null if not found
* @deprecated use {@link MemberDetails#getAnnotation(JavaType)} instead
*/
@Deprecated
public static AnnotationMetadata getDeclaredTypeAnnotation(
final MemberDetails memberDetails, final JavaType type) {
return memberDetails.getAnnotation(type);
}
/**
* Searches up the inheritance hierarchy until the first field with the
* specified name is located.
*
* @param memberHoldingTypeDetails to search (required)
* @param fieldName to locate (required)
* @return the field, or null if not found
* @deprecated use {@link MemberHoldingTypeDetails#getField(JavaSymbolName)}
* instead
*/
@Deprecated
public static FieldMetadata getField(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final JavaSymbolName fieldName) {
return memberHoldingTypeDetails.getField(fieldName);
}
/**
* Searches all {@link MemberDetails} and returns all fields.
*
* @param memberDetails the {@link MemberDetails} to search (required)
* @return zero or more fields (never null)
* @deprecated use {@link MemberDetails#getFields()} instead
*/
@Deprecated
public static List<FieldMetadata> getFields(
final MemberDetails memberDetails) {
return memberDetails.getFields();
}
/**
* Searches up the inheritance hierarchy and locates all declared fields
* which are annotated with the specified annotation.
*
* @param memberHoldingTypeDetails to search (required)
* @param annotation to locate (required)
* @return all the located fields (never null, but may be empty)
* @deprecated use
* {@link MemberHoldingTypeDetails#getFieldsWithAnnotation(JavaType)}
* instead
*/
@Deprecated
public static List<FieldMetadata> getFieldsWithAnnotation(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final JavaType annotation) {
return memberHoldingTypeDetails.getFieldsWithAnnotation(annotation);
}
/**
* Returns all fields within the given {@link MemberDetails} that contain
* the given {@link CustomData} tag.
*
* @param memberDetails the {@link MemberDetails} to search (can be
* <code>null</code>)
* @param tagKey the {@link CustomData} key to search for
* @return zero or more fields (never <code>null</code>)
*/
public static List<FieldMetadata> getFieldsWithTag(
final MemberDetails memberDetails, final Object tagKey) {
Validate.notNull(tagKey, "Custom data key required");
final List<FieldMetadata> fields = new ArrayList<FieldMetadata>();
if (memberDetails != null) {
for (final MemberHoldingTypeDetails memberHoldingTypeDetails : memberDetails
.getDetails()) {
for (final FieldMetadata field : memberHoldingTypeDetails
.getDeclaredFields()) {
if (field.getCustomData().keySet().contains(tagKey)) {
fields.add(field);
}
}
}
}
return fields;
}
/**
* Returns the first of the given types of annotation on the given class or
* interface
*
* @param cid the class or interface to check (can be <code>null</code>)
* @param annotationTypes the types of annotation to look for, in order (can
* be <code>null</code>)
* @return <code>null</code> if the given type or array of annotations is
* <code>null</code>, or none were found
*/
public static AnnotationMetadata getFirstAnnotation(
final ClassOrInterfaceTypeDetails cid,
final JavaType... annotationTypes) {
if (cid != null && annotationTypes != null) {
for (final JavaType annotationType : annotationTypes) {
final AnnotationMetadata annotation = MemberFindingUtils
.getAnnotationOfType(cid.getAnnotations(),
annotationType);
if (annotation != null) {
return annotation;
}
}
}
return null;
}
/**
* Searches all {@link MemberDetails} and returns all
* {@link MemberHoldingTypeDetails} which contains a given
* {@link CustomData} tag.
*
* @param memberDetails the {@link MemberDetails} to search (can be
* <code>null</code>)
* @param tagKey the {@link CustomData} key to search for (required)
* @return zero or more {@link MemberHoldingTypeDetails} (never null)
*/
public static List<MemberHoldingTypeDetails> getMemberHoldingTypeDetailsWithTag(
final MemberDetails memberDetails, final Object tagKey) {
Validate.notNull(tagKey, "Custom data tag required");
final List<MemberHoldingTypeDetails> result = new ArrayList<MemberHoldingTypeDetails>();
if (memberDetails != null) {
for (final MemberHoldingTypeDetails memberHoldingTypeDetails : memberDetails
.getDetails()) {
if (memberHoldingTypeDetails.getCustomData().keySet()
.contains(tagKey)) {
result.add(memberHoldingTypeDetails);
}
}
}
return result;
}
/**
* Locates a method with the name presented. Searches all
* {@link MemberDetails} until the first such method is located or none can
* be found.
*
* @param memberDetails the {@link MemberDetails} to search (required)
* @param methodName the method name to locate (can be <code>null</code>)
* @return the first located method, or <code>null</code> if the method name
* is <code>null</code> or such a method cannot be found
* @deprecated use {@link MemberDetails#getMethod(JavaSymbolName)} instead
*/
@Deprecated
public static MethodMetadata getMethod(final MemberDetails memberDetails,
final JavaSymbolName methodName) {
return memberDetails.getMethod(methodName);
}
/**
* Locates a method with the name and parameter signature presented.
* Searches all {@link MemberDetails} until the first such method is located
* or none can be found.
*
* @param memberDetails the {@link MemberDetails} to search (required)
* @param methodName the method name to locate (can be <code>null</code>)
* @param parameters the method parameter signature to locate (can be null
* if no parameters are required)
* @return the first located method, or <code>null</code> if the method name
* is <code>null</code> or such a method cannot be found
* @deprecated use {@link MemberDetails#getMethod(JavaSymbolName, List)}
* instead
*/
@Deprecated
public static MethodMetadata getMethod(final MemberDetails memberDetails,
final JavaSymbolName methodName, final List<JavaType> parameters) {
return memberDetails.getMethod(methodName, parameters);
}
/**
* Locates a method with the name and parameter signature presented that is
* not declared by the presented MID.
*
* @param memberDetails the {@link MemberDetails} to search (required)
* @param methodName the method name to locate (can be <code>null</code>)
* @param parameters the method parameter signature to locate (can be null
* if no parameters are required)
* @param excludingMid the MID that a found method cannot be declared by
* @return the first located method, or <code>null</code> if the method name
* is <code>null</code> or such a method cannot be found
* @deprecated use
* {@link MemberDetails#getMethod(JavaSymbolName, List, String)}
* instead
*/
@Deprecated
public static MethodMetadata getMethod(final MemberDetails memberDetails,
final JavaSymbolName methodName, final List<JavaType> parameters,
final String excludingMid) {
return memberDetails.getMethod(methodName, parameters, excludingMid);
}
/**
* Convenience method which converts a String method name to a
* {@link JavaSymbolName} for use by the standard
* {@link #getMethod(MemberDetails, org.springframework.roo.model.JavaSymbolName)}
* .
*
* @param memberHoldingTypeDetails to search (required)
* @param methodName to locate (required)
* @return the method, or null if not found
*/
public static MethodMetadata getMethod(final MemberDetails memberDetails,
final String methodName) {
Validate.notNull(methodName, "Method name required");
return memberDetails.getMethod(new JavaSymbolName(methodName));
}
/**
* Searches up the inheritance hierarchy until the first method with the
* specified name is located, method parameters are not taken into account.
*
* @param memberHoldingTypeDetails to search (required)
* @param methodName to locate (required)
* @return the method, or null if not found
* @deprecated use
* {@link MemberHoldingTypeDetails#getMethod(JavaSymbolName)}
* instead
*/
@Deprecated
public static MethodMetadata getMethod(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final JavaSymbolName methodName) {
return memberHoldingTypeDetails.getMethod(methodName);
}
/**
* Searches up the inheritance hierarchy until the first method with the
* specified name and parameters is located.
*
* @param memberHoldingTypeDetails to search (required)
* @param methodName to locate (required)
* @param parameters to locate (can be null if there are no parameters)
* @return the method, or null if not found
* @deprecated use
* {@link MemberHoldingTypeDetails#getMethod(JavaSymbolName, List)}
* instead
*/
@Deprecated
public static MethodMetadata getMethod(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final JavaSymbolName methodName, final List<JavaType> parameters) {
return memberHoldingTypeDetails.getMethod(methodName, parameters);
}
/**
* Convenience method which converts a String method name to a
* {@link JavaSymbolName} for use by the standard
* {@link #getMethod(MemberHoldingTypeDetails, org.springframework.roo.model.JavaSymbolName)}
* .
*
* @param memberHoldingTypeDetails to search (required)
* @param methodName to locate (required)
* @return the method, or null if not found
*/
public static MethodMetadata getMethod(
final MemberHoldingTypeDetails memberHoldingTypeDetails,
final String methodName) {
return memberHoldingTypeDetails
.getMethod(new JavaSymbolName(methodName));
}
/**
* Searches all {@link MemberDetails} and returns all methods.
*
* @param memberDetails the {@link MemberDetails} to search (required)
* @return zero or more methods (never null)
* @deprecated use {@link MemberDetails#getMethods()} instead
*/
@Deprecated
public static List<MethodMetadata> getMethods(
final MemberDetails memberDetails) {
return memberDetails.getMethods();
}
/**
* Locates all methods on this class and its superclasses.
*
* @param memberHoldingTypeDetails to search (required)
* @return zero or more methods (never null)
* @deprecated use {@link MemberHoldingTypeDetails#getMethods()} instead
*/
@Deprecated
public static List<MethodMetadata> getMethods(
final MemberHoldingTypeDetails memberHoldingTypeDetails) {
return memberHoldingTypeDetails.getMethods();
}
/**
* Searches all {@link MemberDetails} and returns all methods which contain
* a given {@link CustomData} tag.
*
* @param memberDetails the {@link MemberDetails} to search (required)
* @param tagKey the {@link CustomData} key to search for
* @return zero or more methods (never null)
* @deprecated use {@link MemberDetails#getMethodsWithTag(Object)} instead
*/
@Deprecated
public static List<MethodMetadata> getMethodsWithTag(
final MemberDetails memberDetails, final Object tagKey) {
return memberDetails.getMethodsWithTag(tagKey);
}
/**
* Determines the most concrete {@link MemberHoldingTypeDetails} in cases
* where multiple matches are found for a given tag.
*
* @param memberDetails the {@link MemberDetails} to search (can be
* <code>null</code>)
* @param tag the {@link CustomData} key to search for (required)
* @return the most concrete tagged type or null if not found
*/
public static MemberHoldingTypeDetails getMostConcreteMemberHoldingTypeDetailsWithTag(
final MemberDetails memberDetails, final Object tag) {
Validate.notNull(tag, "Custom data tag required");
final List<MemberHoldingTypeDetails> memberHoldingTypeDetailsList = getMemberHoldingTypeDetailsWithTag(
memberDetails, tag);
if (memberHoldingTypeDetailsList.isEmpty()) {
return null;
}
return memberHoldingTypeDetailsList.get(memberHoldingTypeDetailsList
.size() - 1);
}
/**
* Determines the most concrete {@link MemberHoldingTypeDetails} in cases
* where multiple matches are found for a given tag.
*
* @param memberDetails the {@link MemberDetails} to search (can be
* <code>null</code>)
* @param tagKey the {@link CustomData} key to search for (required)
* @return the most concrete tagged method or <code>null</code> if not found
*/
public static MethodMetadata getMostConcreteMethodWithTag(
final MemberDetails memberDetails, final Object tagKey) {
if (memberDetails == null) {
return null;
}
return memberDetails.getMostConcreteMethodWithTag(tagKey);
}
/**
* Locates an annotation on this class and its superclasses.
*
* @param memberHoldingTypeDetails to search (required)
* @param annotationType annotation to locate (required)
* @return the annotation, or null if not found
* @deprecated use
* {@link IdentifiableAnnotatedJavaStructure#getTypeAnnotation(JavaType)}
* instead
*/
@Deprecated
public static AnnotationMetadata getTypeAnnotation(
final IdentifiableAnnotatedJavaStructure memberHoldingTypeDetails,
final JavaType annotationType) {
return memberHoldingTypeDetails.getTypeAnnotation(annotationType);
}
/**
* Constructor is private to prevent instantiation
*
* @since 1.2.0
*/
private MemberFindingUtils() {
}
}