geethkokila
6 years ago
parent
7630cb0fb1
commit
c23770db33
@ -0,0 +1,120 @@
|
||||
/*
|
||||
* Copyright (c) 2018, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
|
||||
*
|
||||
* WSO2 Inc. 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.wso2.carbon.device.application.mgt.publisher.api;
|
||||
|
||||
import org.apache.commons.logging.Log;
|
||||
import org.apache.commons.logging.LogFactory;
|
||||
import org.apache.cxf.interceptor.Fault;
|
||||
import org.apache.cxf.jaxrs.lifecycle.ResourceProvider;
|
||||
import org.apache.cxf.jaxrs.model.ClassResourceInfo;
|
||||
import org.apache.cxf.jaxrs.model.OperationResourceInfo;
|
||||
import org.apache.cxf.message.Message;
|
||||
import org.apache.cxf.message.MessageContentsList;
|
||||
import org.apache.cxf.phase.AbstractPhaseInterceptor;
|
||||
import org.apache.cxf.phase.Phase;
|
||||
|
||||
import javax.validation.*;
|
||||
import javax.validation.executable.ExecutableValidator;
|
||||
import java.lang.reflect.Method;
|
||||
import java.util.List;
|
||||
import java.util.Set;
|
||||
|
||||
public class ValidationInterceptor extends AbstractPhaseInterceptor<Message> {
|
||||
private Log log = LogFactory.getLog(getClass());
|
||||
private Validator validator = null; //validator interface is thread-safe
|
||||
|
||||
public ValidationInterceptor() {
|
||||
super(Phase.PRE_INVOKE);
|
||||
ValidatorFactory defaultFactory = Validation.buildDefaultValidatorFactory();
|
||||
validator = defaultFactory.getValidator();
|
||||
if (validator == null) {
|
||||
log.warn("Bean Validation provider could not be found, no validation will be performed");
|
||||
} else {
|
||||
log.debug("Validation In-Interceptor initialized successfully");
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void handleMessage(Message message) throws Fault {
|
||||
final OperationResourceInfo operationResource = message.getExchange().get(OperationResourceInfo.class);
|
||||
if (operationResource == null) {
|
||||
log.info("OperationResourceInfo is not available, skipping validation");
|
||||
return;
|
||||
}
|
||||
|
||||
final ClassResourceInfo classResource = operationResource.getClassResourceInfo();
|
||||
if (classResource == null) {
|
||||
log.info("ClassResourceInfo is not available, skipping validation");
|
||||
return;
|
||||
}
|
||||
|
||||
final ResourceProvider resourceProvider = classResource.getResourceProvider();
|
||||
if (resourceProvider == null) {
|
||||
log.info("ResourceProvider is not available, skipping validation");
|
||||
return;
|
||||
}
|
||||
|
||||
final List<Object> arguments = MessageContentsList.getContentsList(message);
|
||||
final Method method = operationResource.getAnnotatedMethod();
|
||||
final Object instance = resourceProvider.getInstance(message);
|
||||
if (method != null && arguments != null) {
|
||||
//validate the parameters(arguments) over the invoked method
|
||||
validate(method, arguments.toArray(), instance);
|
||||
|
||||
//validate the fields of each argument
|
||||
for (Object arg : arguments) {
|
||||
if (arg != null)
|
||||
validate(arg);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
public <T> void validate(final Method method, final Object[] arguments, final T instance) {
|
||||
if (validator == null) {
|
||||
log.warn("Bean Validation provider could not be found, no validation will be performed");
|
||||
return;
|
||||
}
|
||||
|
||||
ExecutableValidator methodValidator = validator.forExecutables();
|
||||
Set<ConstraintViolation<T>> violations = methodValidator.validateParameters(instance,
|
||||
method, arguments);
|
||||
|
||||
if (!violations.isEmpty()) {
|
||||
throw new ConstraintViolationException(violations);
|
||||
}
|
||||
}
|
||||
|
||||
public <T> void validate(final T object) {
|
||||
if (validator == null) {
|
||||
log.warn("Bean Validation provider could be found, no validation will be performed");
|
||||
return;
|
||||
}
|
||||
|
||||
Set<ConstraintViolation<T>> violations = validator.validate(object);
|
||||
|
||||
if (!violations.isEmpty()) {
|
||||
throw new ConstraintViolationException(violations);
|
||||
}
|
||||
}
|
||||
|
||||
public void handleFault(org.apache.cxf.message.Message messageParam) {
|
||||
}
|
||||
}
|
||||
Loading…
Reference in new issue