private void checkExtends(
ClassDeclaration classDeclaration, PackageDeclaration packageDeclaration) {
String scName = classDeclaration.getSuperclass().toString();
int lt = scName.indexOf('<');
if (lt != -1) {
scName = scName.substring(0, lt);
}
int dot = scName.lastIndexOf('.');
if (dot != -1) {
String superClassPackageName = scName.substring(0, dot);
if (!superClassPackageName.equals(packageDeclaration.getQualifiedName())) {
scName = ""; // force error below
} else {
scName = scName.substring(dot + 1);
}
}
if (!scName.equals(classDeclaration.getSimpleName() + "Gen")) {
error(
classDeclaration,
classDeclaration.getQualifiedName()
+ " must extend "
+ classDeclaration.getQualifiedName()
+ "Gen for @Bean to work properly");
}
}
private boolean checkInheritedMethod(
Thing data,
String methodName,
String returnType,
ClassDeclaration superclass,
boolean finalOk,
InheritCheck inheritCheck) {
if (inheritCheck != null) {
if (inheritCheck.isInherited(data, superclass)) {
return true;
}
}
for (MethodDeclaration methodDeclaration : superclass.getMethods()) {
if (methodName.equals(methodDeclaration.getSimpleName())
&& methodDeclaration.getParameters().isEmpty()
&& returnType.equals(methodDeclaration.getReturnType().toString())) {
data.put(methodName + "Inherited", true);
Collection<Modifier> modifiers = methodDeclaration.getModifiers();
if ((modifiers.contains(Modifier.FINAL) || modifiers.contains(Modifier.PRIVATE))
&& !finalOk) {
// TBD TBD TBD - ERROR!!! cannot extend class with superclass method like this - how to
// report?
} else if (modifiers.contains(Modifier.PROTECTED)) {
data.put(methodName + "Modifiers", "protected");
} else if (modifiers.contains(Modifier.PUBLIC)) {
data.put(methodName + "Modifiers", "public");
} else {
data.put(methodName + "Modifiers", "");
}
return true;
}
}
if (superclass.getSuperclass() != null) {
if (superclass.getSuperclass().getDeclaration() != null) {
if (checkInheritedMethod(
data,
methodName,
returnType,
superclass.getSuperclass().getDeclaration(),
finalOk,
inheritCheck)) {
return true;
}
}
}
return false;
}
/**
* Visits a class declaration.
*
* @param d the declaration to visit
*/
public void visitClassDeclaration(ClassDeclaration d) {
d.accept(pre);
SortedSet<Declaration> decls = new TreeSet<Declaration>(SourceOrderDeclScanner.comparator);
for (TypeParameterDeclaration tpDecl : d.getFormalTypeParameters()) {
decls.add(tpDecl);
}
for (FieldDeclaration fieldDecl : d.getFields()) {
decls.add(fieldDecl);
}
for (MethodDeclaration methodDecl : d.getMethods()) {
decls.add(methodDecl);
}
for (TypeDeclaration typeDecl : d.getNestedTypes()) {
decls.add(typeDecl);
}
for (ConstructorDeclaration ctorDecl : d.getConstructors()) {
decls.add(ctorDecl);
}
for (Declaration decl : decls) decl.accept(this);
d.accept(post);
}
public static boolean checkIfAnnotationValueAttributeIsEntity(
AnnotationMirror mirror, String attributeName, EclipseMessager messager) {
Map<AnnotationTypeElementDeclaration, AnnotationValue> valueMap = mirror.getElementValues();
Set<Map.Entry<AnnotationTypeElementDeclaration, AnnotationValue>> valueSet =
valueMap.entrySet();
for (Map.Entry<AnnotationTypeElementDeclaration, AnnotationValue> annoKeyValue : valueSet) {
if (annoKeyValue.getKey().getSimpleName().equals(attributeName)) {
ClassDeclaration annoValue = (ClassDeclaration) annoKeyValue.getValue().getValue();
Entity entityAnnotation = annoValue.getAnnotation(Entity.class);
if (entityAnnotation == null) {
SourcePosition pos = annoKeyValue.getValue().getPosition();
messager.printError(
pos,
"'"
+ attributeName
+ "' attribute value class should be annotated with 'javax.persistence.Entity'");
return false;
}
}
}
return true;
}
@Test(result = "T")
Collection<TypeParameterDeclaration> getFormalTypeParameters2() {
return nested.getFormalTypeParameters();
}
@Test(result = {"m1()", "m2()", "m2(int)"})
Collection<MethodDeclaration> getMethods() {
return nested.getMethods();
}
@Test(result = {"null"})
ClassType objectHasNoSuperclass() {
return object.getSuperclass();
}
@Test(result = "java.io.Serializable")
Collection<InterfaceType> getSuperinterfaces() {
return nested.getSuperinterfaces();
}
// Check for default constructor.
// 4997614: visitConstructionDeclaration reports info when there is no ctor
@Test(result = {"NestedClass()"})
Collection<ConstructorDeclaration> getConstructors2() {
return nested.getConstructors();
}
@Test(result = "ClassDecl.NestedClass")
String getQualifiedName2() {
return nested.getQualifiedName();
}
@Test(result = "java.lang.Object")
String getQualifiedName3() {
return object.getQualifiedName();
}
@Override
public void process() {
final AnnotationTypeDeclaration beanAnn =
(AnnotationTypeDeclaration) env_.getTypeDeclaration(Bean.class.getName());
for (Declaration declaration : env_.getDeclarationsAnnotatedWith(beanAnn)) {
try {
if (!(declaration instanceof ClassDeclaration)) {
error(declaration, "You can only annotate class declarations with @Bean");
return;
}
Thing data = new Thing("data");
ClassDeclaration classDeclaration = (ClassDeclaration) declaration;
PackageDeclaration packageDeclaration = classDeclaration.getPackage();
Map<String, AnnotationValue> beanValues =
getAnnotationValues(classDeclaration, "com.javadude.annotation.Bean");
checkExtends(classDeclaration, packageDeclaration); // check that the class extends XXXGen
processSuperclass(data, beanValues); // process the superclass attribute
processProperties(data, beanValues);
processObservers(data, beanValues);
processNullObjects(data, beanValues);
processDelegates(data, beanValues);
processDefaultMethods(data, classDeclaration);
setValue(data, beanValues, "cloneable", false);
setValue(data, beanValues, "defineEqualsAndHashCode", false);
setValue(data, beanValues, "equalsAndHashCodeCallSuper", false);
setValue(data, beanValues, "definePropertyNameConstants", false);
setValue(data, beanValues, "defineCreatePropertyMap", false);
data.put("date", new Date());
data.put("year", Calendar.getInstance().get(Calendar.YEAR));
data.put("className", classDeclaration.getSimpleName());
data.put("packageName", packageDeclaration.getQualifiedName());
data.checkAllValuesSet(declaration, this);
Filer f = env_.getFiler();
PrintWriter pw = f.createSourceFile(classDeclaration.getQualifiedName() + "Gen");
if (nestedEclipse) {
// debugging in eclipse -- reread the template each time
FileReader fileReader =
new FileReader(
workspace
+ "/com.javadude.annotation/template/$packageName$/$className$Gen.java");
template = new TemplateReader().readTemplate(fileReader);
}
int spacesForLeadingTabs = i(beanValues, "spacesForLeadingTabs", -1);
String padding = null;
if (spacesForLeadingTabs != -1) {
padding = "";
for (int i = 0; i < spacesForLeadingTabs; i++) {
padding += ' ';
}
}
template.process(new Symbols(data), pw, -1, padding);
pw.close();
} catch (ThreadDeath e) {
throw e;
} catch (ExpressionException e) {
error(declaration, "@Bean generator error: " + e.getMessage());
} catch (Throwable t) {
StringWriter stringWriter = new StringWriter();
PrintWriter printWriter = new PrintWriter(stringWriter);
t.printStackTrace(printWriter);
printWriter.close();
error(declaration, "Unexpected exception: " + stringWriter.toString());
}
}
}
@Test(result = "java.lang")
PackageDeclaration getPackage2() {
return object.getPackage();
}
@Test(result = "ClassDecl")
TypeDeclaration getDeclaringType2() {
return nested.getDeclaringType();
}
@Test(result = "NestedClass")
String getSimpleName2() {
return nested.getSimpleName();
}
// Check that static nested class has "static" modifier, even though
// the VM doesn't set that bit.
@Test(result = {"private", "static", "strictfp"})
Collection<Modifier> getModifiers2() {
return nested.getModifiers();
}
private void processSuperclass(Thing data, Map<String, AnnotationValue> beanValues) {
AnnotationValue value = beanValues.get("superclass");
data.put("superclass", null);
data.put("genericDecls", "");
data.put("classModifiers", "");
data.put("propertyNameConstantsInherited", false);
data.put("getPropertyChangeSupportInherited", false);
data.put("getPropertyChangeSupportModifiers", "protected");
data.put("paramStringInherited", false);
data.put("paramStringModifiers", "protected");
data.put("createPropertyMapInherited", false);
data.put("createPropertyMapModifiers", "public");
data.put("atLeastOneDouble", false);
data.put("atLeastOneBound", false);
data.put("atLeastOneObject", false);
data.put("atLeastOneDefault", false);
if (value == null) {
data.setEmpty("superclassConstructors");
} else {
if (!(value.getValue() instanceof ClassDeclaration)) {
error(value, "superclass must be a class");
return;
}
ClassDeclaration superclass = (ClassDeclaration) value.getValue();
data.put("superclass", superclass.getQualifiedName());
boolean hasProperties = !l(beanValues, "properties").isEmpty();
// check if getPropertyChangeSupport or some superclass defines bound properties in @Bean
checkInheritedMethod(
data,
"getPropertyChangeSupport",
"java.beans.PropertyChangeSupport",
superclass,
true,
new InheritCheck() {
@Override
public boolean isInherited(Thing d, ClassDeclaration classDeclaration) {
Bean beanAnn = classDeclaration.getAnnotation(Bean.class);
if (beanAnn != null) {
Property[] properties = beanAnn.properties();
for (Property property : properties) {
if (property.bound()) {
d.put("getPropertyChangeSupportInherited", true);
d.put("getPropertyChangeSupportModifiers", "protected");
return true;
}
}
}
return false;
}
});
// check if paramString inherited or some superclass has @Bean
checkInheritedMethod(
data,
"paramString",
"java.lang.String",
superclass,
!hasProperties,
new InheritCheck() {
@Override
public boolean isInherited(Thing d, ClassDeclaration classDeclaration) {
if (classDeclaration.getAnnotation(Bean.class) != null) {
d.put("paramStringInherited", true);
d.put("paramStringModifiers", "protected");
return true;
}
return false;
}
});
// check if createPropertyMap inherited or some superclass has @Bean with
// defineCreatePropertyMap
checkInheritedMethod(
data,
"createPropertyMap",
"java.lang.String",
superclass,
!hasProperties,
new InheritCheck() {
@Override
public boolean isInherited(Thing d, ClassDeclaration classDeclaration) {
Bean beanAnn = classDeclaration.getAnnotation(Bean.class);
if (beanAnn != null && beanAnn.defineCreatePropertyMap()) {
d.put("createPropertyMapInherited", true);
d.put("createPropertyMapModifiers", "public");
return true;
}
return false;
}
});
String genericDecls = null;
Collection<TypeParameterDeclaration> formalTypeParameters2 =
superclass.getFormalTypeParameters();
for (TypeParameterDeclaration typeParameterDeclaration : formalTypeParameters2) {
genericDecls = addWithCommasBetween(genericDecls, typeParameterDeclaration);
}
if (genericDecls == null) {
genericDecls = "";
} else {
genericDecls = '<' + genericDecls + '>';
}
data.put("genericDecls", genericDecls);
String classModifiers = "";
for (Modifier modifier : superclass.getModifiers()) {
if (!"abstract".equals(modifier.toString())) {
classModifiers += modifier.toString() + ' ';
}
}
data.put("classModifiers", classModifiers);
Collection<ConstructorDeclaration> constructors = superclass.getConstructors();
if (constructors.isEmpty()) {
data.setEmpty("superclassConstructors");
} else {
for (ConstructorDeclaration constructorDeclaration : constructors) {
data.add("superclassConstructors", setupMethod(constructorDeclaration, false));
}
}
boolean extendPropertyNameConstants = false;
if (b(beanValues, "definePropertyNameConstants")) {
// if superclass has a PropertyNameConstants interface or a Bean annotation with
// definePropertyNameConstants=true, we need to have our PropertyNameConstants
// extend it
Collection<TypeDeclaration> nestedTypes = superclass.getNestedTypes();
for (TypeDeclaration typeDeclaration : nestedTypes) {
if ("PropertyNames".equals(typeDeclaration.getSimpleName())
&& (typeDeclaration instanceof InterfaceDeclaration)) {
extendPropertyNameConstants = true;
}
}
if (!extendPropertyNameConstants) {
// check if the superclass is annotated with Bean
Bean annotation = superclass.getAnnotation(Bean.class);
if (annotation != null) {
extendPropertyNameConstants = annotation.definePropertyNameConstants();
}
}
}
data.put("propertyNameConstantsInherited", extendPropertyNameConstants);
}
}
private void processDefaultMethods(Thing data, ClassDeclaration classDeclaration) {
// find any methods that have default parameters
boolean error = false;
for (ConstructorDeclaration constructorDeclaration : classDeclaration.getConstructors()) {
Collection<ParameterDeclaration> parameters = constructorDeclaration.getParameters();
for (ParameterDeclaration parameterDeclaration : parameters) {
Default annotation = parameterDeclaration.getAnnotation(Default.class);
if (annotation != null) {
error(parameterDeclaration, "@Default is not legal in constructor parameters");
error = true;
}
}
}
if (error) {
return;
}
boolean atLeastOneDefault = false;
methods:
for (MethodDeclaration methodDeclaration : classDeclaration.getMethods()) {
Collection<ParameterDeclaration> parameters = methodDeclaration.getParameters();
boolean seenDefault = false;
String[] names = new String[parameters.size()];
String[] types = new String[parameters.size()];
String[] defaults = new String[parameters.size()];
int n = 0;
for (ParameterDeclaration parameterDeclaration : parameters) {
Default annotation = parameterDeclaration.getAnnotation(Default.class);
names[n] = parameterDeclaration.getSimpleName();
types[n] = parameterDeclaration.getType().toString();
if (annotation != null) {
seenDefault = true;
if ("java.lang.String".equals(types[n])) {
defaults[n] = '"' + annotation.value() + '"';
} else {
defaults[n] = annotation.value();
}
} else if (seenDefault) {
error(
parameterDeclaration,
"All parameters after a parameter annotated with @Default must be annotated with @Default");
continue methods;
}
n++;
}
if (seenDefault) {
atLeastOneDefault = true;
if (methodDeclaration.getModifiers().contains(Modifier.PRIVATE)) {
error(methodDeclaration, "Private methods cannot use @Default parameters");
}
if (methodDeclaration.getModifiers().contains(Modifier.STATIC)) {
error(methodDeclaration, "Static methods cannot use @Default parameters");
}
String modifiers3 = "";
if (methodDeclaration.getModifiers().contains(Modifier.PUBLIC)) {
modifiers3 = "public ";
} else if (methodDeclaration.getModifiers().contains(Modifier.PROTECTED)) {
modifiers3 = "protected ";
}
String throwsClause = getThrowsClause(methodDeclaration);
String returnType = methodDeclaration.getReturnType().toString();
String methodName = methodDeclaration.getSimpleName();
String argDecl = "";
String callArgs = "";
for (int i = 0; i < n; i++) {
if (defaults[i] != null) {
String callArgsWithDefaults = callArgs;
for (int j = i; j < n; j++) {
if (j > 0) {
callArgsWithDefaults += ", ";
}
callArgsWithDefaults += defaults[j];
}
Thing method = new Thing("method");
method.put("name", methodName);
method.put("returnType", returnType);
method.put("throwsClause", throwsClause);
method.put("argDecls", argDecl);
method.put("modifiers", modifiers3);
method.put("args", callArgsWithDefaults);
data.add("defaultMethods", method);
}
if (i > 0) {
argDecl += ", ";
callArgs += ", ";
}
argDecl += types[i] + ' ' + names[i];
callArgs += names[i];
}
Thing method = new Thing("method");
method.put("name", methodName);
method.put("returnType", returnType);
method.put("throwsClause", throwsClause);
method.put("modifiers", modifiers3);
method.put("abstract", true);
method.put("argDecls", argDecl);
data.add("defaultMethods", method);
}
}
data.put("atLeastOneDefault", atLeastOneDefault);
if (!atLeastOneDefault) {
data.setEmpty("defaultMethods");
}
}
