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Apache Kylin - REST Server Base

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/*
 * 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.kylin.rest.response;

import org.apache.kylin.rest.exception.BadRequestException;

import org.apache.kylin.shaded.com.google.common.base.Throwables;

/**
 * response to client when the return HTTP code is not 200
 */
public class ErrorResponse extends EnvelopeResponse {

    //stacktrace of the exception
    public String stacktrace;

    //same as EnvelopeResponse.msg, kept for legacy reasons
    public String exception;

    //request URL, kept from legacy codes
    public String url;

    public ErrorResponse(String url, Exception exception) {
        super();
        
        this.url = url;
        this.exception = exception.getLocalizedMessage();
        this.msg = exception.getLocalizedMessage();
        this.stacktrace = Throwables.getStackTraceAsString(exception);
        this.data = null;

        if (exception instanceof BadRequestException) {
            this.code = ((BadRequestException) exception).getCode();
        } else {
            this.code = ResponseCode.CODE_UNDEFINED;
        }
    }
}