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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2014 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * http://glassfish.java.net/public/CDDL+GPL_1_1.html
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 * language governing permissions and limitations under the License.
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package org.glassfish.jersey.server.oauth1;

import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.HttpHeaders;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;

/**
 * {@link WebApplicationException Web application exception} that is mapped either
 * to {@link javax.ws.rs.core.Response.Status#BAD_REQUEST} (e.g. if problem with OAuth
 * parameters occurs) or
 * {@link javax.ws.rs.core.Response.Status#UNAUTHORIZED} (e.g. if signature is incorrect).
 *
 * @author Martin Matula
 * @author Miroslav Fuksa (miroslav.fuksa at oracle.com)
 */
public class OAuth1Exception extends WebApplicationException {

    /**
     * Create a new exception.
     * @param status Response status.
     * @param wwwAuthHeader {@code Authorization} header value of the request that cause the exception.
     */
    public OAuth1Exception(final Response.Status status, final String wwwAuthHeader) {
        super(createResponse(status, wwwAuthHeader));
    }

    /**
     * Get the status of the error response.
     *
     * @return Response status code.
     */
    public Response.Status getStatus() {
        return Response.Status.fromStatusCode(super.getResponse().getStatus());
    }

    /**
     * Get the {@code WWW-Authenticate} header of the request that cause the exception.
     *
     * @return {@code WWW-Authenticate} header value.
     */
    public String getWwwAuthHeader() {
        return super.getResponse().getHeaderString(HttpHeaders.WWW_AUTHENTICATE);
    }

    private static Response createResponse(Response.Status status, String wwwAuthHeader) {
        ResponseBuilder rb = Response.status(status);
        if (wwwAuthHeader != null) {
            rb.header(HttpHeaders.WWW_AUTHENTICATE, wwwAuthHeader);
        }
        return rb.build();
    }
}