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/*
 * Copyright 2010 Google Inc.
 *
 * Licensed 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 com.google.gwt.validation.client.impl;

import java.lang.annotation.Annotation;
import java.util.HashSet;
import java.util.Set;

import javax.validation.ConstraintValidatorContext;
import javax.validation.ConstraintValidatorContext.ConstraintViolationBuilder.NodeBuilderCustomizableContext;
import javax.validation.ConstraintValidatorContext.ConstraintViolationBuilder.NodeBuilderDefinedContext;
import javax.validation.ConstraintValidatorContext.ConstraintViolationBuilder.NodeContextBuilder;
import javax.validation.ConstraintViolation;
import javax.validation.metadata.ConstraintDescriptor;

/**
 * EXPERIMENTAL and subject to change. Do not use this in
 * production code.
 * 

* GWT safe immutable implementation of {@link ConstraintValidatorContext} *

* These objects are very short lived. * * @param the constraint being validated * @param the type of object being validated */ public class ConstraintValidatorContextImpl implements ConstraintValidatorContext { /** * Builder for {@link ConstraintValidatorContextImpl}. */ public final class ConstraintViolationBuilderImpl implements ConstraintViolationBuilder { private ConstraintValidatorContextImpl context; private String messageTemplate; /** * @param constraintValidatorContextImpl * @param messageTemplate */ public ConstraintViolationBuilderImpl( ConstraintValidatorContextImpl constraintValidatorContextImpl, String messageTemplate) { this.context = constraintValidatorContextImpl; this.messageTemplate = messageTemplate; } public ConstraintValidatorContext addConstraintViolation() { messages.add(new MessageAndPath(context.basePath, messageTemplate)); return context; } public NodeBuilderDefinedContext addNode(String name) { return new NodeBuilderDefinedContextImpl(this, messageTemplate, basePath.append(name)); } } /** * Immutable GWT safe {@link NodeBuilderCustomizableContext}. */ public final class NodeBuilderCustomizableContextImpl implements NodeBuilderCustomizableContext { private final String messageTemplate; private final ConstraintViolationBuilderImpl parent; private final PathImpl path; /** * @param parent * @param messageTemplate * @param append */ public NodeBuilderCustomizableContextImpl( ConstraintViolationBuilderImpl parent, String messageTemplate, PathImpl path) { this.parent = parent; this.messageTemplate = messageTemplate; this.path = path; } public ConstraintValidatorContext addConstraintViolation() { return null; } public NodeBuilderCustomizableContext addNode(String name) { return this; } public NodeContextBuilder inIterable() { return new NodeContextBuilderImpl(path, messageTemplate, parent); } } /** * Immutable GWT safe {@link NodeBuilderDefinedContext}. */ public final class NodeBuilderDefinedContextImpl implements NodeBuilderDefinedContext { private final String messageTemplate; private final ConstraintViolationBuilderImpl parent; private final PathImpl path; /** * @param constraintViolationBuilderImpl * @param messageTemplate * @param append */ public NodeBuilderDefinedContextImpl(ConstraintViolationBuilderImpl parent, String messageTemplate, PathImpl path) { this.parent = parent; this.messageTemplate = messageTemplate; this.path = path; } public ConstraintValidatorContext addConstraintViolation() { ConstraintViolation violation = ConstraintViolationImpl. builder().setPropertyPath( path).setMessageTemplate(messageTemplate).build(); parent.context.violations.add(violation); return parent.context; } public NodeBuilderCustomizableContext addNode(String name) { return new NodeBuilderCustomizableContextImpl(parent, messageTemplate, path.append(name)); } } /** * Immutable GWT safe {@link NodeContextBuilder}. */ public final class NodeContextBuilderImpl implements NodeContextBuilder { private final String messageTemplate; private final ConstraintViolationBuilderImpl parent; private final PathImpl path; public NodeContextBuilderImpl(PathImpl path, String messageTemplate, ConstraintViolationBuilderImpl parent) { super(); this.path = path; this.messageTemplate = messageTemplate; this.parent = parent; } public ConstraintValidatorContext addConstraintViolation() { return null; } public NodeBuilderCustomizableContext addNode(String name) { return new NodeBuilderCustomizableContextImpl(parent, messageTemplate, path.append(name)); } public NodeBuilderDefinedContext atIndex(Integer index) { return new NodeBuilderDefinedContextImpl(parent, messageTemplate, path.appendIndex(null, index.intValue())); } public NodeBuilderDefinedContext atKey(Object key) { return new NodeBuilderDefinedContextImpl(parent, messageTemplate, path.appendKey(null, key)); } } private final PathImpl basePath; private final ConstraintDescriptor descriptor; private boolean disableDefault; private final Set> violations = new HashSet>(); private final HashSet messages = new HashSet(); public ConstraintValidatorContextImpl(PathImpl path, ConstraintDescriptor descriptor) { super(); this.basePath = path; this.descriptor = descriptor; } public ConstraintViolationBuilder buildConstraintViolationWithTemplate( String messageTemplate) { ConstraintViolationBuilderImpl builder = new ConstraintViolationBuilderImpl( this, messageTemplate); return builder; } public void disableDefaultConstraintViolation() { disableDefault = true; } public String getDefaultConstraintMessageTemplate() { return (String) descriptor.getAttributes().get("message"); } public Set getMessageAndPaths() { if (!disableDefault) { messages.add(new MessageAndPath(this.basePath, this .getDefaultConstraintMessageTemplate())); } return messages; } public Set> getViolations() { return violations; } }





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