package org.springframework.roo.classpath.details.annotations;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.commons.lang3.Validate;
import org.apache.commons.lang3.builder.ToStringBuilder;
import org.springframework.roo.classpath.details.comments.CommentStructure;
import org.springframework.roo.model.JavaSymbolName;
import org.springframework.roo.model.JavaType;
/**
* Default implementation of {@link AnnotationMetadata}.
*
* @author Ben Alex
* @since 1.0
*/
public class DefaultAnnotationMetadata implements AnnotationMetadata {
private final JavaType annotationType;
private final Map<JavaSymbolName, AnnotationAttributeValue<?>> attributeMap;
private final List<AnnotationAttributeValue<?>> attributes;
private CommentStructure commentStructure;
/**
* Constructor
*
* @param annotationType the type of annotation for which these are the
* metadata (required)
* @param attributeValues the given annotation's values; can be
* <code>null</code>
*/
DefaultAnnotationMetadata(final JavaType annotationType,
final List<AnnotationAttributeValue<?>> attributeValues) {
Validate.notNull(annotationType, "Annotation type required");
this.annotationType = annotationType;
attributes = new ArrayList<AnnotationAttributeValue<?>>();
attributeMap = new HashMap<JavaSymbolName, AnnotationAttributeValue<?>>();
if (attributeValues != null) {
attributes.addAll(attributeValues);
for (final AnnotationAttributeValue<?> value : attributeValues) {
attributeMap.put(value.getName(), value);
}
}
}
public JavaType getAnnotationType() {
return annotationType;
}
public AnnotationAttributeValue<?> getAttribute(
final JavaSymbolName attributeName) {
Validate.notNull(attributeName, "Attribute name required");
return attributeMap.get(attributeName);
}
@SuppressWarnings("unchecked")
public AnnotationAttributeValue<?> getAttribute(final String attributeName) {
return getAttribute(new JavaSymbolName(attributeName));
}
public List<JavaSymbolName> getAttributeNames() {
final List<JavaSymbolName> result = new ArrayList<JavaSymbolName>();
for (final AnnotationAttributeValue<?> value : attributes) {
result.add(value.getName());
}
return result;
}
public CommentStructure getCommentStructure() {
return commentStructure;
}
public void setCommentStructure(CommentStructure commentStructure) {
this.commentStructure = commentStructure;
}
@Override
public String toString() {
final ToStringBuilder builder = new ToStringBuilder(this);
builder.append("annotationType", annotationType);
builder.append("attributes", attributes);
return builder.toString();
}
}