import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkState;
-import static java.util.Objects.requireNonNull;
-import com.google.common.annotations.Beta;
+import com.google.common.annotations.VisibleForTesting;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
-import com.google.common.collect.ImmutableSet;
-import com.google.common.collect.ImmutableSet.Builder;
-import com.google.common.util.concurrent.ListenableFuture;
import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.lang.reflect.Type;
-import java.util.Arrays;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
+import java.lang.reflect.InvocationTargetException;
import java.util.Optional;
-import java.util.ServiceLoader;
-import java.util.Set;
import java.util.concurrent.TimeUnit;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-import org.checkerframework.checker.regex.qual.Regex;
import org.eclipse.jdt.annotation.NonNull;
-import org.opendaylight.mdsal.binding.spec.naming.BindingMapping;
-import org.opendaylight.yangtools.util.ClassLoaderUtils;
import org.opendaylight.yangtools.yang.binding.Action;
-import org.opendaylight.yangtools.yang.binding.Augmentable;
import org.opendaylight.yangtools.yang.binding.Augmentation;
-import org.opendaylight.yangtools.yang.binding.AugmentationHolder;
import org.opendaylight.yangtools.yang.binding.BaseIdentity;
import org.opendaylight.yangtools.yang.binding.ChildOf;
import org.opendaylight.yangtools.yang.binding.DataContainer;
import org.opendaylight.yangtools.yang.binding.DataObject;
import org.opendaylight.yangtools.yang.binding.Notification;
-import org.opendaylight.yangtools.yang.binding.RpcService;
-import org.opendaylight.yangtools.yang.binding.YangModelBindingProvider;
import org.opendaylight.yangtools.yang.binding.YangModuleInfo;
+import org.opendaylight.yangtools.yang.binding.contract.Naming;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.common.QNameModule;
import org.opendaylight.yangtools.yang.common.YangConstants;
import org.slf4j.LoggerFactory;
public final class BindingReflections {
-
- private static final long EXPIRATION_TIME = 60;
-
- @Regex
- private static final String ROOT_PACKAGE_PATTERN_STRING =
- "(org.opendaylight.yang.gen.v1.[a-z0-9_\\.]*\\.(?:rev[0-9][0-9][0-1][0-9][0-3][0-9]|norev))";
- private static final Pattern ROOT_PACKAGE_PATTERN = Pattern.compile(ROOT_PACKAGE_PATTERN_STRING);
private static final Logger LOG = LoggerFactory.getLogger(BindingReflections.class);
-
private static final LoadingCache<Class<?>, Optional<QName>> CLASS_TO_QNAME = CacheBuilder.newBuilder()
.weakKeys()
- .expireAfterAccess(EXPIRATION_TIME, TimeUnit.SECONDS)
+ .expireAfterAccess(60, TimeUnit.SECONDS)
.build(new ClassToQNameLoader());
- private static final LoadingCache<ClassLoader, ImmutableSet<YangModuleInfo>> MODULE_INFO_CACHE =
- CacheBuilder.newBuilder().weakKeys().weakValues().build(
- new CacheLoader<ClassLoader, ImmutableSet<YangModuleInfo>>() {
- @Override
- public ImmutableSet<YangModuleInfo> load(final ClassLoader key) {
- return loadModuleInfos(key);
- }
- });
-
private BindingReflections() {
- throw new UnsupportedOperationException("Utility class.");
- }
-
- /**
- * Find augmentation target class from concrete Augmentation class. This method uses first generic argument of
- * implemented {@link Augmentation} interface.
- *
- * @param augmentation
- * {@link Augmentation} subclass for which we want to determine
- * augmentation target.
- * @return Augmentation target - class which augmentation provides additional extensions.
- */
- public static Class<? extends Augmentable<?>> findAugmentationTarget(
- final Class<? extends Augmentation<?>> augmentation) {
- final Optional<Class<Augmentable<?>>> opt = ClassLoaderUtils.findFirstGenericArgument(augmentation,
- Augmentation.class);
- return opt.orElse(null);
- }
-
- /**
- * Find data hierarchy parent from concrete Data class. This method uses first generic argument of implemented
- * {@link ChildOf} interface.
- *
- * @param childClass
- * child class for which we want to find the parent class.
- * @return Parent class, e.g. class of which the childClass is ChildOf.
- */
- public static Class<?> findHierarchicalParent(final Class<? extends ChildOf<?>> childClass) {
- return ClassLoaderUtils.findFirstGenericArgument(childClass, ChildOf.class).orElse(null);
- }
-
- /**
- * Find data hierarchy parent from concrete Data class. This method is shorthand which gets DataObject class by
- * invoking {@link DataObject#implementedInterface()} and uses {@link #findHierarchicalParent(Class)}.
- *
- * @param child
- * Child object for which the parent needs to be located.
- * @return Parent class, or null if a parent is not found.
- */
- public static Class<?> findHierarchicalParent(final DataObject child) {
- if (child instanceof ChildOf) {
- return ClassLoaderUtils.findFirstGenericArgument(child.implementedInterface(), ChildOf.class).orElse(null);
- }
- return null;
+ // Hidden on purpose
}
/**
return CLASS_TO_QNAME.getUnchecked(dataType).orElse(null);
}
- /**
- * Checks if method is RPC invocation.
- *
- * @param possibleMethod
- * Method to check
- * @return true if method is RPC invocation, false otherwise.
- */
- public static boolean isRpcMethod(final Method possibleMethod) {
- return possibleMethod != null && RpcService.class.isAssignableFrom(possibleMethod.getDeclaringClass())
- && ListenableFuture.class.isAssignableFrom(possibleMethod.getReturnType())
- // length <= 2: it seemed to be impossible to get correct RpcMethodInvoker because of
- // resolveRpcInputClass() check.While RpcMethodInvoker counts with one argument for
- // non input type and two arguments for input type, resolveRpcInputClass() counting
- // with zero for non input and one for input type
- && possibleMethod.getParameterCount() <= 2;
- }
-
- /**
- * Extracts Output class for RPC method.
- *
- * @param targetMethod
- * method to scan
- * @return Optional.empty() if result type could not be get, or return type is Void.
- */
- @SuppressWarnings("rawtypes")
- public static Optional<Class<?>> resolveRpcOutputClass(final Method targetMethod) {
- checkState(isRpcMethod(targetMethod), "Supplied method is not a RPC invocation method");
- Type futureType = targetMethod.getGenericReturnType();
- Type rpcResultType = ClassLoaderUtils.getFirstGenericParameter(futureType).orElse(null);
- Type rpcResultArgument = ClassLoaderUtils.getFirstGenericParameter(rpcResultType).orElse(null);
- if (rpcResultArgument instanceof Class && !Void.class.equals(rpcResultArgument)) {
- return Optional.of((Class) rpcResultArgument);
- }
- return Optional.empty();
- }
-
- /**
- * Extracts input class for RPC method.
- *
- * @param targetMethod
- * method to scan
- * @return Optional.empty() if RPC has no input, RPC input type otherwise.
- */
- @SuppressWarnings("rawtypes")
- public static Optional<Class<? extends DataContainer>> resolveRpcInputClass(final Method targetMethod) {
- for (Class clazz : targetMethod.getParameterTypes()) {
- if (DataContainer.class.isAssignableFrom(clazz)) {
- return Optional.of(clazz);
- }
- }
- return Optional.empty();
- }
-
- public static @NonNull QName getQName(final Class<? extends BaseIdentity> bindingClass) {
- final Optional<QName> qname = CLASS_TO_QNAME.getUnchecked(requireNonNull(bindingClass));
- checkState(qname.isPresent(), "Failed to resolve QName of %s", bindingClass);
- return qname.get();
- }
-
- /**
- * Checks if class is child of augmentation.
- */
- public static boolean isAugmentationChild(final Class<?> clazz) {
- // FIXME: Current resolver could be still confused when child node was added by grouping
- checkArgument(clazz != null);
-
- @SuppressWarnings({ "rawtypes", "unchecked" })
- Class<?> parent = findHierarchicalParent((Class) clazz);
- if (parent == null) {
- LOG.debug("Did not find a parent for class {}", clazz);
- return false;
- }
-
- String clazzModelPackage = getModelRootPackageName(clazz.getPackage());
- String parentModelPackage = getModelRootPackageName(parent.getPackage());
-
- return !clazzModelPackage.equals(parentModelPackage);
- }
-
- /**
- * Returns root package name for supplied package.
- *
- * @param pkg
- * Package for which find model root package.
- * @return Package of model root.
- */
- public static String getModelRootPackageName(final Package pkg) {
- return getModelRootPackageName(pkg.getName());
- }
-
- /**
- * Returns root package name for supplied package name.
- *
- * @param name
- * Package for which find model root package.
- * @return Package of model root.
- */
- public static String getModelRootPackageName(final String name) {
- checkArgument(name != null, "Package name should not be null.");
- checkArgument(name.startsWith(BindingMapping.PACKAGE_PREFIX), "Package name not starting with %s, is: %s",
- BindingMapping.PACKAGE_PREFIX, name);
- Matcher match = ROOT_PACKAGE_PATTERN.matcher(name);
- checkArgument(match.find(), "Package name '%s' does not match required pattern '%s'", name,
- ROOT_PACKAGE_PATTERN_STRING);
- return match.group(0);
+ public static @NonNull QName getQName(final BaseIdentity identity) {
+ return CLASS_TO_QNAME.getUnchecked(identity.implementedInterface())
+ .orElseThrow(() -> new IllegalStateException("Failed to resolve QName of " + identity));
}
- @SuppressWarnings("checkstyle:illegalCatch")
public static QNameModule getQNameModule(final Class<?> clz) {
if (DataContainer.class.isAssignableFrom(clz) || BaseIdentity.class.isAssignableFrom(clz)
|| Action.class.isAssignableFrom(clz)) {
return findQName(clz).getModule();
}
- try {
- return BindingReflections.getModuleInfo(clz).getName().getModule();
- } catch (Exception e) {
- throw new IllegalStateException("Unable to get QName of defining model.", e);
- }
+
+ return getModuleInfo(clz).getName().getModule();
}
/**
* Returns instance of {@link YangModuleInfo} of declaring model for specific class.
*
* @param cls data object class
- * @return Instance of {@link YangModuleInfo} associated with model, from
- * which this class was derived.
+ * @return Instance of {@link YangModuleInfo} associated with model, from which this class was derived.
*/
- public static YangModuleInfo getModuleInfo(final Class<?> cls) throws Exception {
- checkArgument(cls != null);
- String packageName = getModelRootPackageName(cls.getPackage());
- final String potentialClassName = getModuleInfoClassName(packageName);
- return ClassLoaderUtils.callWithClassLoader(cls.getClassLoader(), () -> {
- Class<?> moduleInfoClass = Thread.currentThread().getContextClassLoader().loadClass(potentialClassName);
- return (YangModuleInfo) moduleInfoClass.getMethod("getInstance").invoke(null);
- });
- }
+ private static @NonNull YangModuleInfo getModuleInfo(final Class<?> cls) {
+ final String potentialClassName = Naming.getModelRootPackageName(cls.getPackage().getName()) + "."
+ + Naming.MODULE_INFO_CLASS_NAME;
+ final Class<?> moduleInfoClass;
+ try {
+ moduleInfoClass = cls.getClassLoader().loadClass(potentialClassName);
+ } catch (ClassNotFoundException e) {
+ throw new IllegalStateException("Failed to load " + potentialClassName, e);
+ }
+
+ final Object infoInstance;
+ try {
+ infoInstance = moduleInfoClass.getMethod("getInstance").invoke(null);
+ } catch (IllegalAccessException | InvocationTargetException | NoSuchMethodException e) {
+ throw new IllegalStateException("Failed to get instance of " + moduleInfoClass, e);
+ }
- public static String getModuleInfoClassName(final String packageName) {
- return packageName + "." + BindingMapping.MODULE_INFO_CLASS_NAME;
+ checkState(infoInstance instanceof YangModuleInfo, "Unexpected instance %s", infoInstance);
+ return (YangModuleInfo) infoInstance;
}
/**
if (DataContainer.class.isAssignableFrom(cls) || Augmentation.class.isAssignableFrom(cls)) {
return true;
}
- return cls.getName().startsWith(BindingMapping.PACKAGE_PREFIX);
- }
-
- /**
- * Checks if supplied method is callback for notifications.
- *
- * @param method method to check
- * @return true if method is notification callback.
- */
- public static boolean isNotificationCallback(final Method method) {
- checkArgument(method != null);
- if (method.getName().startsWith("on") && method.getParameterCount() == 1) {
- Class<?> potentialNotification = method.getParameterTypes()[0];
- if (isNotification(potentialNotification)
- && method.getName().equals("on" + potentialNotification.getSimpleName())) {
- return true;
- }
- }
- return false;
- }
-
- /**
- * Checks is supplied class is a {@link Notification}.
- *
- * @param potentialNotification class to examine
- * @return True if the class represents a Notification.
- */
- public static boolean isNotification(final Class<?> potentialNotification) {
- checkArgument(potentialNotification != null, "potentialNotification must not be null.");
- return Notification.class.isAssignableFrom(potentialNotification);
- }
-
- /**
- * Loads {@link YangModuleInfo} infos available on current classloader. This method is shorthand for
- * {@link #loadModuleInfos(ClassLoader)} with {@link Thread#getContextClassLoader()} for current thread.
- *
- * @return Set of {@link YangModuleInfo} available for current classloader.
- */
- public static ImmutableSet<YangModuleInfo> loadModuleInfos() {
- return loadModuleInfos(Thread.currentThread().getContextClassLoader());
- }
-
- /**
- * Loads {@link YangModuleInfo} infos available on supplied classloader.
- *
- * <p>
- * {@link YangModuleInfo} are discovered using {@link ServiceLoader} for {@link YangModelBindingProvider}.
- * {@link YangModelBindingProvider} are simple classes which holds only pointers to actual instance
- * {@link YangModuleInfo}.
- *
- * <p>
- * When {@link YangModuleInfo} is available, all dependencies are recursively collected into returning set by
- * collecting results of {@link YangModuleInfo#getImportedModules()}.
- *
- * <p>
- * Consider using {@link #cacheModuleInfos(ClassLoader)} if the classloader is known to be immutable.
- *
- * @param loader Classloader for which {@link YangModuleInfo} should be retrieved.
- * @return Set of {@link YangModuleInfo} available for supplied classloader.
- */
- public static ImmutableSet<YangModuleInfo> loadModuleInfos(final ClassLoader loader) {
- Builder<YangModuleInfo> moduleInfoSet = ImmutableSet.builder();
- ServiceLoader<YangModelBindingProvider> serviceLoader = ServiceLoader.load(YangModelBindingProvider.class,
- loader);
- for (YangModelBindingProvider bindingProvider : serviceLoader) {
- YangModuleInfo moduleInfo = bindingProvider.getModuleInfo();
- checkState(moduleInfo != null, "Module Info for %s is not available.", bindingProvider.getClass());
- collectYangModuleInfo(bindingProvider.getModuleInfo(), moduleInfoSet);
- }
- return moduleInfoSet.build();
- }
-
- /**
- * Loads {@link YangModuleInfo} instances available on supplied {@link ClassLoader}, assuming the set of available
- * information does not change. Subsequent accesses may return cached values.
- *
- * <p>
- * {@link YangModuleInfo} are discovered using {@link ServiceLoader} for {@link YangModelBindingProvider}.
- * {@link YangModelBindingProvider} are simple classes which holds only pointers to actual instance
- * {@link YangModuleInfo}.
- *
- * <p>
- * When {@link YangModuleInfo} is available, all dependencies are recursively collected into returning set by
- * collecting results of {@link YangModuleInfo#getImportedModules()}.
- *
- * @param loader Class loader for which {@link YangModuleInfo} should be retrieved.
- * @return Set of {@link YangModuleInfo} available for supplied classloader.
- */
- @Beta
- public static ImmutableSet<YangModuleInfo> cacheModuleInfos(final ClassLoader loader) {
- return MODULE_INFO_CACHE.getUnchecked(loader);
- }
-
- private static void collectYangModuleInfo(final YangModuleInfo moduleInfo,
- final Builder<YangModuleInfo> moduleInfoSet) {
- moduleInfoSet.add(moduleInfo);
- for (YangModuleInfo dependency : moduleInfo.getImportedModules()) {
- collectYangModuleInfo(dependency, moduleInfoSet);
- }
+ return cls.getName().startsWith(Naming.PACKAGE_PREFIX);
}
/**
* Class to be checked
* @return true if class represents RPC Input or RPC Output class.
*/
- public static boolean isRpcType(final Class<? extends DataObject> targetType) {
+ @VisibleForTesting
+ static boolean isRpcType(final Class<? extends DataObject> targetType) {
return DataContainer.class.isAssignableFrom(targetType)
&& !ChildOf.class.isAssignableFrom(targetType)
&& !Notification.class.isAssignableFrom(targetType)
&& (targetType.getName().endsWith("Input") || targetType.getName().endsWith("Output"));
}
- /**
- * Scans supplied class and returns an iterable of all data children classes.
- *
- * @param type
- * YANG Modeled Entity derived from DataContainer
- * @return Iterable of all data children, which have YANG modeled entity
- */
- @SuppressWarnings("unchecked")
- public static Iterable<Class<? extends DataObject>> getChildrenClasses(final Class<? extends DataContainer> type) {
- checkArgument(type != null, "Target type must not be null");
- checkArgument(DataContainer.class.isAssignableFrom(type), "Supplied type must be derived from DataContainer");
- List<Class<? extends DataObject>> ret = new LinkedList<>();
- for (Method method : type.getMethods()) {
- Optional<Class<? extends DataContainer>> entity = getYangModeledReturnType(method,
- BindingMapping.GETTER_PREFIX);
- if (entity.isPresent()) {
- ret.add((Class<? extends DataObject>) entity.get());
- }
- }
- return ret;
- }
-
- /**
- * Scans supplied class and returns an iterable of all data children classes.
- *
- * @param type
- * YANG Modeled Entity derived from DataContainer
- * @return Iterable of all data children, which have YANG modeled entity
- */
- public static Map<Class<?>, Method> getChildrenClassToMethod(final Class<?> type) {
- return getChildrenClassToMethod(type, BindingMapping.GETTER_PREFIX);
- }
-
- private static Map<Class<?>, Method> getChildrenClassToMethod(final Class<?> type, final String prefix) {
- checkArgument(type != null, "Target type must not be null");
- checkArgument(DataContainer.class.isAssignableFrom(type), "Supplied type %s must be derived from DataContainer",
- type);
- Map<Class<?>, Method> ret = new HashMap<>();
- for (Method method : type.getMethods()) {
- Optional<Class<? extends DataContainer>> entity = getYangModeledReturnType(method, prefix);
- if (entity.isPresent()) {
- ret.put(entity.get(), method);
- }
- }
- return ret;
- }
-
- @Beta
- public static Map<Class<?>, Method> getChildrenClassToNonnullMethod(final Class<?> type) {
- return getChildrenClassToMethod(type, BindingMapping.NONNULL_PREFIX);
- }
-
- @SuppressWarnings("checkstyle:illegalCatch")
- private static Optional<Class<? extends DataContainer>> getYangModeledReturnType(final Method method,
- final String prefix) {
- final String methodName = method.getName();
- if ("getClass".equals(methodName) || !methodName.startsWith(prefix) || method.getParameterCount() > 0) {
- return Optional.empty();
- }
-
- final Class<?> returnType = method.getReturnType();
- if (DataContainer.class.isAssignableFrom(returnType)) {
- return optionalDataContainer(returnType);
- } else if (List.class.isAssignableFrom(returnType)) {
- try {
- return ClassLoaderUtils.callWithClassLoader(method.getDeclaringClass().getClassLoader(), () -> {
- return ClassLoaderUtils.getFirstGenericParameter(method.getGenericReturnType()).flatMap(
- result -> result instanceof Class ? optionalCast((Class<?>) result) : Optional.empty());
- });
- } catch (Exception e) {
- /*
- * It is safe to log this this exception on debug, since this
- * method should not fail. Only failures are possible if the
- * runtime / backing.
- */
- LOG.debug("Unable to find YANG modeled return type for {}", method, e);
- }
- }
- return Optional.empty();
- }
-
- private static Optional<Class<? extends DataContainer>> optionalCast(final Class<?> type) {
- return DataContainer.class.isAssignableFrom(type) ? optionalDataContainer(type) : Optional.empty();
- }
-
- private static Optional<Class<? extends DataContainer>> optionalDataContainer(final Class<?> type) {
- return Optional.of(type.asSubclass(DataContainer.class));
- }
-
- private static class ClassToQNameLoader extends CacheLoader<Class<?>, Optional<QName>> {
+ private static final class ClassToQNameLoader extends CacheLoader<Class<?>, Optional<QName>> {
@Override
public Optional<QName> load(@SuppressWarnings("NullableProblems") final Class<?> key) throws Exception {
/**
* Tries to resolve QName for supplied class. Looks up for static field with name from constant
- * {@link BindingMapping#QNAME_STATIC_FIELD_NAME} and returns value if present. If field is not present uses
+ * {@link Naming#QNAME_STATIC_FIELD_NAME} and returns value if present. If field is not present uses
* {@link #computeQName(Class)} to compute QName for missing types.
*/
private static Optional<QName> resolveQNameNoCache(final Class<?> key) {
try {
final Field field;
try {
- field = key.getField(BindingMapping.QNAME_STATIC_FIELD_NAME);
+ field = key.getField(Naming.QNAME_STATIC_FIELD_NAME);
} catch (NoSuchFieldException e) {
LOG.debug("{} does not have a {} field, falling back to computation", key,
- BindingMapping.QNAME_STATIC_FIELD_NAME, e);
+ Naming.QNAME_STATIC_FIELD_NAME, e);
return Optional.of(computeQName(key));
}
final Object obj = field.get(null);
- if (obj instanceof QName) {
- return Optional.of((QName) obj);
+ if (obj instanceof QName qname) {
+ return Optional.of(qname);
}
} catch (SecurityException | IllegalArgumentException | IllegalAccessException e) {
/*
* @throws IllegalArgumentException If supplied class was not derived from YANG model.
*/
// FIXME: Extend this algorithm to also provide QName for YANG modeled simple types.
- @SuppressWarnings({ "rawtypes", "unchecked", "checkstyle:illegalCatch" })
+ @SuppressWarnings({ "rawtypes", "unchecked" })
private static QName computeQName(final Class key) {
checkArgument(isBindingClass(key), "Supplied class %s is not derived from YANG.", key);
- YangModuleInfo moduleInfo;
- try {
- moduleInfo = getModuleInfo(key);
- } catch (Exception e) {
- throw new IllegalStateException("Unable to get QName for " + key + ". YangModuleInfo was not found.",
- e);
- }
- final QName module = moduleInfo.getName();
+ final QName module = getModuleInfo(key).getName();
if (Augmentation.class.isAssignableFrom(key)) {
return module;
} else if (isRpcType(key)) {
final String className = key.getSimpleName();
- if (className.endsWith(BindingMapping.RPC_OUTPUT_SUFFIX)) {
+ if (className.endsWith(Naming.RPC_OUTPUT_SUFFIX)) {
return YangConstants.operationOutputQName(module.getModule()).intern();
}
return module;
}
}
-
- /**
- * Extracts augmentation from Binding DTO field using reflection.
- *
- * @param input
- * Instance of DataObject which is augmentable and may contain
- * augmentation
- * @return Map of augmentations if read was successful, otherwise empty map.
- */
- public static Map<Class<? extends Augmentation<?>>, Augmentation<?>> getAugmentations(final Augmentable<?> input) {
- if (input instanceof AugmentationHolder) {
- return ((AugmentationHolder) input).augmentations();
- }
- return AugmentationFieldGetter.getGetter(input.getClass()).getAugmentations(input);
- }
-
- /**
- * Determines if two augmentation classes or case classes represents same
- * data.
- *
- * <p>
- * Two augmentations or cases could be substituted only if and if:
- * <ul>
- * <li>Both implements same interfaces</li>
- * <li>Both have same children</li>
- * <li>If augmentations: Both have same augmentation target class. Target
- * class was generated for data node in grouping.</li>
- * <li>If cases: Both are from same choice. Choice class was generated for
- * data node in grouping.</li>
- * </ul>
- *
- * <p>
- * <b>Explanation:</b> Binding Specification reuses classes generated for
- * groupings as part of normal data tree, this classes from grouping could
- * be used at various locations and user may not be aware of it and may use
- * incorrect case or augmentation in particular subtree (via copy
- * constructors, etc).
- *
- * @param potential
- * Class which is potential substitution
- * @param target
- * Class which should be used at particular subtree
- * @return true if and only if classes represents same data.
- */
- @SuppressWarnings({ "rawtypes", "unchecked" })
- public static boolean isSubstitutionFor(final Class potential, final Class target) {
- Set<Class> subImplemented = new HashSet<>(Arrays.asList(potential.getInterfaces()));
- Set<Class> targetImplemented = new HashSet<>(Arrays.asList(target.getInterfaces()));
- if (!subImplemented.equals(targetImplemented)) {
- return false;
- }
- if (Augmentation.class.isAssignableFrom(potential)
- && !BindingReflections.findAugmentationTarget(potential).equals(
- BindingReflections.findAugmentationTarget(target))) {
- return false;
- }
- for (Method potentialMethod : potential.getMethods()) {
- try {
- Method targetMethod = target.getMethod(potentialMethod.getName(), potentialMethod.getParameterTypes());
- if (!potentialMethod.getReturnType().equals(targetMethod.getReturnType())) {
- return false;
- }
- } catch (NoSuchMethodException e) {
- // Counterpart method is missing, so classes could not be substituted.
- return false;
- } catch (SecurityException e) {
- throw new IllegalStateException("Could not compare methods", e);
- }
- }
- return true;
- }
}
Code Review / mdsal.git / blobdiff