dubbo RpcExceptionMapper 源码
dubbo RpcExceptionMapper 代码
文件路径：/dubbo-rpc/dubbo-rpc-rest/src/main/java/org/apache/dubbo/rpc/protocol/rest/RpcExceptionMapper.java
/*
* 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.dubbo.rpc.protocol.rest;
import org.apache.dubbo.rpc.RpcException;
import org.apache.dubbo.rpc.protocol.rest.support.ContentType;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import javax.ws.rs.core.Response;
import javax.ws.rs.ext.ExceptionMapper;
public class RpcExceptionMapper implements ExceptionMapper<RpcException> {
@Override
public Response toResponse(RpcException e) {
// TODO do more sophisticated exception handling and output
if (e.getCause() instanceof ConstraintViolationException) {
return handleConstraintViolationException((ConstraintViolationException) e.getCause());
}
// we may want to avoid exposing the dubbo exception details to certain clients
// TODO for now just do plain text output
return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity("Internal server error: " + e.getMessage()).type(ContentType.TEXT_PLAIN_UTF_8).build();
}
protected Response handleConstraintViolationException(ConstraintViolationException cve) {
ViolationReport report = new ViolationReport();
for (ConstraintViolation cv : cve.getConstraintViolations()) {
report.addConstraintViolation(new RestConstraintViolation(
cv.getPropertyPath().toString(),
cv.getMessage(),
cv.getInvalidValue() == null ? "null" : cv.getInvalidValue().toString()));
}
// TODO for now just do xml output
return Response.status(Response.Status.INTERNAL_SERVER_ERROR).entity(report).type(ContentType.TEXT_XML_UTF_8).build();
}
}
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