private boolean acceptableType(String rtype) {
TypeRef ref = analyzer.getTypeRefFromFQN(rtype);
try {
Clazz returnType = analyzer.findClass(ref);
if (returnType.isEnum()) {
return true;
}
// TODO check this is true for interfaces and annotations
if (!returnType.isAbstract()
|| (returnType.isInterface() && options.contains(Options.nested))) {
return true;
}
if (!returnType.isInterface()) {
analyzer.error("Abstract classes not allowed as interface method return values: %s", rtype);
} else {
analyzer.error("Nested metatype only allowed with option: nested type %s", rtype);
}
return false;
} catch (Exception e) {
analyzer.error(
"could not examine class for return type %s, exception message: %s",
rtype, e.getMessage());
return false;
}
}
private void parseExtends(Clazz clazz) {
TypeRef[] inherits = clazz.getInterfaces();
if (inherits != null) {
if (analyzed == null) {
analyzed = new HashSet<TypeRef>();
}
for (TypeRef typeRef : inherits) {
if (!typeRef.isJava() && analyzed.add(typeRef)) {
try {
Clazz inherit = analyzer.findClass(typeRef);
if (inherit != null) {
inherit.parseClassFileWithCollector(this);
parseExtends(inherit);
} else {
analyzer.error(
"Could not obtain super class %s of class %s",
typeRef.getFQN(), clazz.getClassName().getFQN());
}
} catch (Exception e) {
analyzer.error(
"Could not obtain super class %s of class %s; exception %s",
typeRef.getFQN(), clazz.getClassName().getFQN(), e.getMessage());
}
}
}
}
}
private DesignateDef getDef() throws Exception {
clazz.parseClassFileWithCollector(this);
if (pid != null && designate != null) {
if (pids != null && pids.length > 1) {
analyzer.error(
"DS Component %s specifies multiple pids %s, and a Designate which requires exactly one pid",
clazz.getClassName().getFQN(), Arrays.asList(pids));
return null;
}
TypeRef ocdClass = designate.get("ocd");
// ocdClass = ocdClass.substring(1, ocdClass.length() - 1);
OCDDef ocd = classToOCDMap.get(ocdClass);
if (ocd == null) {
analyzer.error(
"DS Component %s specifies ocd class %s which cannot be found; known classes %s",
clazz.getClassName().getFQN(), ocdClass, classToOCDMap.keySet());
return null;
}
String id = ocd.id;
boolean factoryPid = Boolean.TRUE == designate.get("factory");
if (def == null) def = new DesignateDef(finder);
def.ocdRef = id;
def.pid = pid;
def.factory = factoryPid;
ocd.designates.add(def);
return def;
}
return null;
}
private static Map<MethodDef, List<MethodDef>> buildCatalog(Collection<Clazz> sources)
throws Exception {
final Map<MethodDef, List<MethodDef>> catalog =
new TreeMap<MethodDef, List<MethodDef>>(
new Comparator<MethodDef>() {
public int compare(MethodDef a, MethodDef b) {
return a.getName().compareTo(b.getName());
}
});
for (final Clazz clazz : sources) {
clazz.parseClassFileWithCollector(
new ClassDataCollector() {
@Override
public boolean classStart(int access, TypeRef name) {
return clazz.isPublic();
}
@Override
public void method(MethodDef source) {
if (source.isPublic() || source.isProtected())
catalog.put(source, new ArrayList<MethodDef>());
}
});
}
return catalog;
}
private void doOCD(ObjectClassDefinition o, Annotation annotation) {
if (topLevel) {
if (clazz.isInterface()) {
if (ocd == null) ocd = new OCDDef(finder);
ocd.id = o.id() == null ? name.getFQN() : o.id();
ocd.name = o.name() == null ? space(ocd.id) : o.name();
ocd.description = o.description() == null ? "" : o.description();
ocd.localization =
o.localization() == null ? "OSGI-INF/l10n/" + name.getFQN() : o.localization();
if (annotation.get("pid") != null) {
String[] pids = o.pid();
designates(pids, false);
}
if (annotation.get("factoryPid") != null) {
String[] pids = o.factoryPid();
designates(pids, true);
}
if (annotation.get("icon") != null) {
Icon[] icons = o.icon();
for (Icon icon : icons) {
ocd.icons.add(new IconDef(icon.resource(), icon.size()));
}
}
} else {
analyzer.error(
"ObjectClassDefinition applied to non-interface, non-annotation class %s", clazz);
}
}
}
private OCDDef getDef() throws Exception {
clazz.parseClassFileWithCollector(this);
if (ocd != null) {
topLevel = false;
parseExtends(clazz);
doMethods();
}
return ocd;
}
private void doXmlAttribute(Annotation annotation, XMLAttribute xmlAttr) {
if (current == null) {
if (clazz.isInterface()) {
if (ocd == null) ocd = new OCDDef(finder);
ocd.addExtensionAttribute(xmlAttr, annotation);
}
} else {
current.addExtensionAttribute(xmlAttr, annotation);
}
}
void doComponent(java.lang.annotation.Annotation a) {
Component component = (Component) a;
pids = component.configurationPid();
if (pids != null) {
pid = pids[0];
}
if (pids == null || "$".equals(pid)) {
pid = component.name();
if (pid == null) pid = clazz.getClassName().getFQN();
}
}
private void parseOptionValues(Clazz c, final List<OptionDef> options) throws Exception {
c.parseClassFileWithCollector(
new ClassDataCollector() {
@Override
public void field(Clazz.FieldDef def) {
if (def.isEnum()) {
OptionDef o = new OptionDef(def.getName(), def.getName());
options.add(o);
}
}
});
}
private static void crossRef(
Collection<Clazz> source, final Map<MethodDef, List<MethodDef>> catalog) throws Exception {
for (final Clazz clazz : source) {
clazz.parseClassFileWithCollector(
new ClassDataCollector() {
// MethodDef source;
@Override
public void implementsInterfaces(TypeRef names[]) {
MethodDef def = clazz.getMethodDef(0, "<implements>", "()V");
// TODO
for (TypeRef interfaceName : names) {
for (Map.Entry<MethodDef, List<MethodDef>> entry : catalog.entrySet()) {
String catalogClass = entry.getKey().getContainingClass().getFQN();
List<MethodDef> references = entry.getValue();
if (catalogClass.equals(interfaceName.getFQN())) {
references.add(def);
}
}
}
}
// Method definitions
@Override
public void method(MethodDef source) {
// this.source = source;
}
// TODO need to use different reference method
// public void reference(MethodDef reference) {
// List<MethodDef> references = catalog.get(reference);
// if (references != null) {
// references.add(source);
// }
// }
});
}
}
private boolean identifiableCollection(String type, boolean intface, boolean topLevel) {
try {
Clazz clazz = analyzer.findClass(analyzer.getTypeRefFromFQN(type));
if (clazz != null
&& (!topLevel || !clazz.isAbstract())
&& ((intface && clazz.isInterface()) ^ clazz.hasPublicNoArgsConstructor())) {
TypeRef[] intfs = clazz.getInterfaces();
if (intfs != null) {
for (TypeRef intf : intfs) {
if (COLLECTION.matcher(intf.getFQN()).matches()
|| identifiableCollection(intf.getFQN(), true, false)) {
return true;
}
}
}
TypeRef ext = clazz.getSuper();
return ext != null && identifiableCollection(ext.getFQN(), false, false);
}
} catch (Exception e) {
return false;
}
return false;
}
static String space(String name) {
return Clazz.unCamel(name);
}
private void doMethods() throws Exception {
for (Map.Entry<MethodDef, ADDef> entry : methods.entrySet()) {
MethodDef defined = entry.getKey();
if (defined.isConstructor()) {
analyzer.error(
"Constructor %s for %s.%s found; only interfaces and annotations allowed for OCDs",
defined.getName(), clazz.getClassName().getFQN(), defined.getName());
}
if (defined.getPrototype().length > 0) {
analyzer.error(
"Element %s for %s.%s has parameters; only no-parameter elements in an OCD interface allowed",
defined.getName(), clazz.getClassName().getFQN(), defined.getName());
continue;
}
ADDef ad = entry.getValue();
ocd.attributes.add(ad);
ad.id = fixup(defined.getName());
ad.name = space(defined.getName());
String rtype = defined.getGenericReturnType();
if (rtype.endsWith("[]")) {
ad.cardinality = Integer.MAX_VALUE;
rtype = rtype.substring(0, rtype.length() - 2);
}
Matcher m = GENERIC.matcher(rtype);
if (m.matches()) {
boolean knownCollection = m.group(2) != null;
boolean collection = knownCollection || identifiableCollection(m.group(3), false, true);
if (collection) {
if (ad.cardinality != 0)
analyzer.error(
"AD for %s.%s uses an array of collections in return type (%s), Metatype allows either Vector or array",
clazz.getClassName().getFQN(), defined.getName(), defined.getType().getFQN());
rtype = Clazz.objectDescriptorToFQN(m.group(4));
ad.cardinality = Integer.MIN_VALUE;
}
}
if (rtype.indexOf('<') > 0) {
rtype = rtype.substring(0, rtype.indexOf('<'));
}
ad.type = getType(rtype);
ad.required = true;
TypeRef typeRef = analyzer.getTypeRefFromFQN(rtype);
try {
Clazz c = analyzer.findClass(typeRef);
if (c != null && c.isEnum()) {
parseOptionValues(c, ad.options);
}
} catch (Exception e) {
analyzer.error(
"AD for %s.%s Can not parse option values from type (%s), %s",
clazz.getClassName().getFQN(),
defined.getName(),
defined.getType().getFQN(),
e.getMessage());
}
if (ad.ad != null) {
doAD(ad);
}
if (ad.defaults == null && clazz.isAnnotation() && defined.getConstant() != null) {
// defaults from annotation default
Object value = defined.getConstant();
boolean isClass = false;
TypeRef type = defined.getType().getClassRef();
if (!type.isPrimitive()) {
if (Class.class.getName().equals(type.getFQN())) {
isClass = true;
} else {
try {
Clazz r = analyzer.findClass(type);
if (r.isAnnotation()) {
analyzer.warning(
"Nested annotation type found in field % s, %s",
defined.getName(), type.getFQN());
return;
}
} catch (Exception e) {
analyzer.error(
"Exception looking at annotation type default for element with descriptor %s, type %s",
e, defined, type);
}
}
}
if (value != null) {
if (value.getClass().isArray()) {
// add element individually
ad.defaults = new String[Array.getLength(value)];
for (int i = 0; i < Array.getLength(value); i++) {
Object element = Array.get(value, i);
ad.defaults[i] = valueToProperty(element, isClass);
}
} else {
ad.defaults = new String[] {valueToProperty(value, isClass)};
}
}
}
}
}