/*
* Copyright 2016 KairosDB 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
*
* 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.kairosdb.core.http.rest;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import javax.validation.ConstraintViolation;
import java.io.IOException;
import java.util.Collections;
import java.util.List;
import java.util.Set;
/**
* Thrown when bean validation has errors.
*/
public class BeanValidationException extends IOException
{
private ImmutableSet<ConstraintViolation<Object>> violations;
private String context;
public BeanValidationException(Set<ConstraintViolation<Object>> violations)
{
this(violations, null);
}
public BeanValidationException(ConstraintViolation<Object> violation, String context)
{
this(Collections.singleton(violation), context);
}
public BeanValidationException(Set<ConstraintViolation<Object>> violations, String context)
{
super(messagesFor(violations, context).toString());
this.context = context;
this.violations = ImmutableSet.copyOf(violations);
}
/**
* Returns the bean validation error messages.
*
* @return validation error messages
*/
public List<String> getErrorMessages()
{
return messagesFor(violations, context);
}
/**
* Returns the set of bean validation violations.
*
* @return set of bean validation violations
*/
public Set<ConstraintViolation<Object>> getViolations()
{
return violations;
}
private static List<String> messagesFor(Set<ConstraintViolation<Object>> violations, String context)
{
ImmutableList.Builder<String> messages = new ImmutableList.Builder<String>();
for (ConstraintViolation<?> violation : violations) {
if (context != null && !context.isEmpty() )
messages.add(context + "." + violation.getPropertyPath().toString() + " " + violation.getMessage());
else
messages.add(violation.getPropertyPath().toString() + " " + violation.getMessage());
}
return messages.build();
}
}