001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.juneau.rest.client;
018
019import java.io.*;
020
021/**
022 * Exception thrown when an HTTP call fails at the REST client level (e.g. unexpected status code, body
023 * deserialization failure, or interceptor rejection).
024 *
025 * <p>
026 * Network-level failures are reported as {@link TransportException}.
027 *
028 * @since 9.2.1
029 */
030public class RestCallException extends IOException {
031
032   private static final long serialVersionUID = 1L;
033
034   private final int statusCode;
035
036   /**
037    * Constructor — for cases without an HTTP status code (e.g. deserialization failure).
038    *
039    * @param message The error message.
040    * @param cause The underlying cause. May be <jk>null</jk>.
041    */
042   public RestCallException(String message, Throwable cause) {
043      super(message, cause);
044      this.statusCode = -1;
045   }
046
047   /**
048    * Constructor — for cases with an HTTP status code (e.g. unexpected 4xx/5xx).
049    *
050    * @param statusCode The HTTP status code.
051    * @param message The error message.
052    */
053   public RestCallException(int statusCode, String message) {
054      super(message);
055      this.statusCode = statusCode;
056   }
057
058   /**
059    * Constructor — for cases with an HTTP status code and a cause.
060    *
061    * @param statusCode The HTTP status code.
062    * @param message The error message.
063    * @param cause The underlying cause. May be <jk>null</jk>.
064    */
065   public RestCallException(int statusCode, String message, Throwable cause) {
066      super(message, cause);
067      this.statusCode = statusCode;
068   }
069
070   /**
071    * Returns the HTTP status code, or {@code -1} if not applicable.
072    *
073    * @return The status code.
074    */
075   public int getStatusCode() {
076      return statusCode;
077   }
078}