| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.bval.jsr; |
| |
| import java.lang.reflect.Type; |
| import java.lang.reflect.TypeVariable; |
| import java.util.Map; |
| import java.util.Objects; |
| |
| import javax.validation.Path; |
| import javax.validation.ValidationException; |
| |
| import org.apache.bval.jsr.metadata.ContainerElementKey; |
| import org.apache.bval.jsr.util.NodeImpl; |
| import org.apache.bval.jsr.util.PathImpl; |
| import org.apache.bval.util.Exceptions; |
| import org.apache.bval.util.reflection.TypeUtils; |
| |
| public class GraphContext { |
| |
| private final ApacheFactoryContext validatorContext; |
| private final PathImpl path; |
| private final Object value; |
| private final GraphContext parent; |
| |
| public GraphContext(ApacheFactoryContext validatorContext, PathImpl path, Object value) { |
| this(validatorContext, path, value, null); |
| } |
| |
| private GraphContext(ApacheFactoryContext validatorContext, PathImpl path, Object value, GraphContext parent) { |
| super(); |
| this.validatorContext = validatorContext; |
| this.path = path; |
| this.value = value; |
| this.parent = parent; |
| } |
| |
| public ApacheFactoryContext getValidatorContext() { |
| return validatorContext; |
| } |
| |
| public PathImpl getPath() { |
| return PathImpl.copy(path); |
| } |
| |
| public Object getValue() { |
| return value; |
| } |
| |
| public GraphContext child(NodeImpl node, Object value) { |
| // Validate.notNull(node, "node"); |
| final PathImpl p = PathImpl.copy(path); |
| p.addNode(node); |
| return new GraphContext(validatorContext, p, value, this); |
| } |
| |
| public GraphContext child(Path p, Object value) { |
| // Validate.notNull(p, "Path"); |
| final PathImpl impl = PathImpl.of(p); |
| // Validate.isTrue(impl.isSubPathOf(path), "%s is not a subpath of %s", p, path); |
| return new GraphContext(validatorContext, impl == p ? PathImpl.copy(impl) : impl, value, this); |
| } |
| |
| public boolean isRoot() { |
| return parent == null; |
| } |
| |
| public boolean isRecursive() { |
| GraphContext c = parent; |
| while (c != null) { |
| if (c.value == value) { |
| return true; |
| } |
| c = c.parent; |
| } |
| return false; |
| } |
| |
| public GraphContext getParent() { |
| return parent; |
| } |
| |
| @Override |
| public String toString() { |
| return String.format("%s: %s at '%s'", getClass().getSimpleName(), value, path); |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj == this) { |
| return true; |
| } |
| if (obj == null || !obj.getClass().equals(getClass())) { |
| return false; |
| } |
| final GraphContext other = (GraphContext) obj; |
| return other.validatorContext == validatorContext && other.value == value && other.getPath().equals(path); |
| } |
| |
| @Override |
| public int hashCode() { |
| return Objects.hash(validatorContext, value, path); |
| } |
| |
| public ContainerElementKey runtimeKey(ContainerElementKey key) { |
| if (value != null) { |
| final Class<?> containerClass = key.getContainerClass(); |
| final Class<? extends Object> runtimeType = value.getClass(); |
| if (!runtimeType.equals(containerClass)) { |
| Exceptions.raiseUnless(containerClass.isAssignableFrom(runtimeType), ValidationException::new, |
| "Value %s is not assignment-compatible with %s", value, containerClass); |
| |
| if (key.getTypeArgumentIndex() == null) { |
| return new ContainerElementKey(runtimeType, null); |
| } |
| final Map<TypeVariable<?>, Type> typeArguments = |
| TypeUtils.getTypeArguments(runtimeType, containerClass); |
| |
| Type type = |
| typeArguments.get(containerClass.getTypeParameters()[key.getTypeArgumentIndex().intValue()]); |
| |
| while (type instanceof TypeVariable<?>) { |
| final TypeVariable<?> var = (TypeVariable<?>) type; |
| final Type nextType = typeArguments.get(var); |
| if (nextType instanceof TypeVariable<?>) { |
| type = nextType; |
| } else { |
| return ContainerElementKey.forTypeVariable(var); |
| } |
| } |
| } |
| } |
| return key; |
| } |
| } |