private <T, U> Node buildPathToNode(final Class<U> clazz) throws ClassHierarchyException {
final String[] path = clazz.getName().split("\\$");
Node root = namespace;
for (int i = 0; i < path.length - 1; i++) {
root = root.get(path[i]);
}
if (root == null) {
throw new NullPointerException();
}
final Node parent = root;
final Type argType = ReflectionUtilities.getNamedParameterTargetOrNull(clazz);
if (argType == null) {
return JavaNodeFactory.createClassNode(parent, clazz);
} else {
// checked inside of NamedParameterNode, using reflection.
@SuppressWarnings("unchecked")
final NamedParameterNode<T> np =
JavaNodeFactory.createNamedParameterNode(
parent, (Class<? extends Name<T>>) clazz, argType);
if (parameterParser.canParse(ReflectionUtilities.getFullName(argType))
&& clazz.getAnnotation(NamedParameter.class).default_class() != Void.class) {
throw new ClassHierarchyException(
"Named parameter "
+ ReflectionUtilities.getFullName(clazz)
+ " defines default implementation for parsable type "
+ ReflectionUtilities.getFullName(argType));
}
final String shortName = np.getShortName();
if (shortName != null) {
final NamedParameterNode<?> oldNode = shortNames.get(shortName);
if (oldNode != null) {
if (oldNode.getFullName().equals(np.getFullName())) {
throw new IllegalStateException(
"Tried to double bind " + oldNode.getFullName() + " to short name " + shortName);
}
throw new ClassHierarchyException(
"Named parameters "
+ oldNode.getFullName()
+ " and "
+ np.getFullName()
+ " have the same short name: "
+ shortName);
}
shortNames.put(shortName, np);
}
return np;
}
}
private static ClassHierarchyProto.Node serializeNode(Node n) {
List<ClassHierarchyProto.Node> children = new ArrayList<>();
for (Node child : n.getChildren()) {
children.add(serializeNode(child));
}
if (n instanceof ClassNode) {
ClassNode<?> cn = (ClassNode<?>) n;
ConstructorDef<?>[] injectable = cn.getInjectableConstructors();
ConstructorDef<?>[] all = cn.getAllConstructors();
List<ConstructorDef<?>> others = new ArrayList<>(Arrays.asList(all));
others.removeAll(Arrays.asList(injectable));
List<ClassHierarchyProto.ConstructorDef> injectableConstructors = new ArrayList<>();
for (ConstructorDef<?> inj : injectable) {
injectableConstructors.add(serializeConstructorDef(inj));
}
List<ClassHierarchyProto.ConstructorDef> otherConstructors = new ArrayList<>();
for (ConstructorDef<?> other : others) {
otherConstructors.add(serializeConstructorDef(other));
}
List<String> implFullNames = new ArrayList<>();
for (ClassNode<?> impl : cn.getKnownImplementations()) {
implFullNames.add(impl.getFullName());
}
return newClassNode(
cn.getName(),
cn.getFullName(),
cn.isInjectionCandidate(),
cn.isExternalConstructor(),
cn.isUnit(),
injectableConstructors,
otherConstructors,
implFullNames,
children);
} else if (n instanceof NamedParameterNode) {
NamedParameterNode<?> np = (NamedParameterNode<?>) n;
return newNamedParameterNode(
np.getName(),
np.getFullName(),
np.getSimpleArgName(),
np.getFullArgName(),
np.isSet(),
np.isList(),
np.getDocumentation(),
np.getShortName(),
np.getDefaultInstanceAsStrings(),
children);
} else if (n instanceof PackageNode) {
return newPackageNode(n.getName(), n.getFullName(), children);
} else {
throw new IllegalStateException("Encountered unknown type of Node: " + n);
}
}
@Override
public ClassHierarchy merge(ClassHierarchy ch) {
if (this == ch) {
return this;
}
if (!(ch instanceof ProtocolBufferClassHierarchy)) {
throw new UnsupportedOperationException(
"Cannot merge with class hierarchies of type: " + ch.getClass().getName());
}
final ProtocolBufferClassHierarchy pch = (ProtocolBufferClassHierarchy) ch;
for (final String key : pch.lookupTable.keySet()) {
if (!this.lookupTable.containsKey(key)) {
this.lookupTable.put(key, pch.lookupTable.get(key));
}
for (final Node n : ch.getNamespace().getChildren()) {
if (!this.namespace.contains(n.getFullName())) {
if (n instanceof NamedParameter) {
final NamedParameterNode np = (NamedParameterNode) n;
new NamedParameterNodeImpl<>(
this.namespace,
np.getName(),
np.getFullName(),
np.getFullArgName(),
np.getSimpleArgName(),
np.isSet(),
np.isList(),
np.getDocumentation(),
np.getShortName(),
np.getDefaultInstanceAsStrings());
} else if (n instanceof ClassNode) {
final ClassNode cn = (ClassNode) n;
new ClassNodeImpl(
namespace,
cn.getName(),
cn.getFullName(),
cn.isUnit(),
cn.isInjectionCandidate(),
cn.isExternalConstructor(),
cn.getInjectableConstructors(),
cn.getAllConstructors(),
cn.getDefaultImplementation());
}
}
}
}
return this;
}
