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/*
* Copyright 2012-2019 the original author or authors.
*
* 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
*
* https://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.springframework.boot.context.properties.bind.validation;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.springframework.boot.context.properties.source.ConfigurationProperty;
import org.springframework.boot.context.properties.source.ConfigurationPropertyName;
import org.springframework.boot.context.properties.source.ConfigurationPropertyName.Form;
import org.springframework.boot.origin.Origin;
import org.springframework.boot.origin.OriginProvider;
import org.springframework.util.Assert;
import org.springframework.validation.FieldError;
import org.springframework.validation.ObjectError;
/**
* A collection of {@link ObjectError ObjectErrors} caused by bind validation failures.
* Where possible, included {@link FieldError FieldErrors} will be OriginProvider.
*
* @author Phillip Webb
* @author Madhura Bhave
* @since 2.0.0
*/
public class ValidationErrors implements Iterable {
private final ConfigurationPropertyName name;
private final Set boundProperties;
private final List errors;
ValidationErrors(ConfigurationPropertyName name, Set boundProperties,
List errors) {
Assert.notNull(name, "Name must not be null");
Assert.notNull(boundProperties, "BoundProperties must not be null");
Assert.notNull(errors, "Errors must not be null");
this.name = name;
this.boundProperties = Collections.unmodifiableSet(boundProperties);
this.errors = convertErrors(name, boundProperties, errors);
}
private List convertErrors(ConfigurationPropertyName name, Set boundProperties,
List errors) {
List converted = new ArrayList<>(errors.size());
for (ObjectError error : errors) {
converted.add(convertError(name, boundProperties, error));
}
return Collections.unmodifiableList(converted);
}
private ObjectError convertError(ConfigurationPropertyName name, Set boundProperties,
ObjectError error) {
if (error instanceof FieldError) {
return convertFieldError(name, boundProperties, (FieldError) error);
}
return error;
}
private FieldError convertFieldError(ConfigurationPropertyName name, Set boundProperties,
FieldError error) {
if (error instanceof OriginProvider) {
return error;
}
return OriginTrackedFieldError.of(error, findFieldErrorOrigin(name, boundProperties, error));
}
private Origin findFieldErrorOrigin(ConfigurationPropertyName name, Set boundProperties,
FieldError error) {
for (ConfigurationProperty boundProperty : boundProperties) {
if (isForError(name, boundProperty.getName(), error)) {
return Origin.from(boundProperty);
}
}
return null;
}
private boolean isForError(ConfigurationPropertyName name, ConfigurationPropertyName boundPropertyName,
FieldError error) {
return name.isParentOf(boundPropertyName)
&& boundPropertyName.getLastElement(Form.UNIFORM).equalsIgnoreCase(error.getField());
}
/**
* Return the name of the item that was being validated.
* @return the name of the item
*/
public ConfigurationPropertyName getName() {
return this.name;
}
/**
* Return the properties that were bound before validation failed.
* @return the boundProperties
*/
public Set getBoundProperties() {
return this.boundProperties;
}
public boolean hasErrors() {
return !this.errors.isEmpty();
}
/**
* Return the list of all validation errors.
* @return the errors
*/
public List getAllErrors() {
return this.errors;
}
@Override
public Iterator iterator() {
return this.errors.iterator();
}
}