Package org.apache.cxf.jaxrs.utils

Source Code of org.apache.cxf.jaxrs.utils.SpecExceptions

/**
* 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.cxf.jaxrs.utils;

import java.util.HashMap;
import java.util.Map;

import javax.ws.rs.BadRequestException;
import javax.ws.rs.ClientErrorException;
import javax.ws.rs.ForbiddenException;
import javax.ws.rs.InternalServerErrorException;
import javax.ws.rs.NotAcceptableException;
import javax.ws.rs.NotAllowedException;
import javax.ws.rs.NotAuthorizedException;
import javax.ws.rs.NotFoundException;
import javax.ws.rs.NotSupportedException;
import javax.ws.rs.RedirectionException;
import javax.ws.rs.ServerErrorException;
import javax.ws.rs.ServiceUnavailableException;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Response;

final class SpecExceptions {
   
    private static final Map<Integer, Class<?>> EXCEPTIONS_MAP;
   
    static {
        EXCEPTIONS_MAP = new HashMap<Integer, Class<?>>();
        EXCEPTIONS_MAP.put(400, BadRequestException.class);
        EXCEPTIONS_MAP.put(401, NotAuthorizedException.class);
        EXCEPTIONS_MAP.put(403, ForbiddenException.class);
        EXCEPTIONS_MAP.put(404, NotFoundException.class);
        EXCEPTIONS_MAP.put(405, NotAllowedException.class);
        EXCEPTIONS_MAP.put(406, NotAcceptableException.class);
        EXCEPTIONS_MAP.put(415, NotSupportedException.class);
        EXCEPTIONS_MAP.put(500, InternalServerErrorException.class);
        EXCEPTIONS_MAP.put(503, ServiceUnavailableException.class);
    }
   
    private SpecExceptions() {       
    }
   
    public static Class<?> getWebApplicationExceptionClass(Response exResponse,
                                                           Class<?> defaultExceptionType) {
        int status = exResponse.getStatus();
        Class<?> cls = EXCEPTIONS_MAP.get(status);
        if (cls == null) {
            int family = status / 100;
            if (family == 3) {
                cls = RedirectionException.class;
            } else if (family == 4) {
                cls = ClientErrorException.class;
            } else if (family == 5) {
                cls = ServerErrorException.class;
            }
        }
        return cls == null ? defaultExceptionType : cls;
    }
   
    public static InternalServerErrorException toInternalServerErrorException(Throwable cause, Response response) {
       
        return new InternalServerErrorException(checkResponse(response, 500), cause);
    }
   
    public static BadRequestException toBadRequestException(Throwable cause, Response response) {
       
        return new BadRequestException(checkResponse(response, 400), cause);
    }
   
    public static NotFoundException toNotFoundException(Throwable cause, Response response) {
       
        return new NotFoundException(checkResponse(response, 404), cause);
    }
   
    public static NotAuthorizedException toNotAuthorizedException(Throwable cause, Response response) {
       
        return new NotAuthorizedException(checkResponse(response, 401), cause);
    }
   
    public static ForbiddenException toForbiddenException(Throwable cause, Response response) {
       
        return new ForbiddenException(checkResponse(response, 403), cause);
    }
   
    public static NotAcceptableException toNotAcceptableException(Throwable cause, Response response) {
       
        return new NotAcceptableException(checkResponse(response, 406), cause);
    }
   
    public static NotSupportedException toNotSupportedException(Throwable cause, Response response) {
       
        return new NotSupportedException(checkResponse(response, 415), cause);
    }
   
    public static WebApplicationException toHttpException(Throwable cause, Response response) {
       
        if (response == null) {
            throw new WebApplicationException(cause);
        }
        throw response.getStatus() >= 500 ? new ServerErrorException(response, cause)
            : new ClientErrorException(response, cause);
    }
   
    private static Response checkResponse(Response r, int status) {
        if (r == null) {
            return JAXRSUtils.toResponse(status);
        } else {
            return r;
        }
    }
}
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