/*
    * Copyright (C) 2010 Atlassian
    *
    * Licensed 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 com.atlassian.jira.rest.client.api;
  
  import com.atlassian.jira.rest.client.api.domain.util.ErrorCollection;
  import com.google.common.base.Optional;
  import com.google.common.collect.ImmutableList;
  
  import java.util.Collection;
  import java.util.Collections;
  
  /**
   * Basic exception which may be thrown by any remote operation encapsulated by the REST com.atlassian.jira.rest.client.api.
   * Usually some more specific exception will be chained here and available via {@link #getCause()}
   *
   * @since v0.1
   */
  public class RestClientException extends RuntimeException {
  
      private final Optional<Integer> statusCode;
      private final Collection<ErrorCollection> errorCollections;
  
      public RestClientException(final RestClientException exception) {
          super(exception.getMessage(), exception);
          this.statusCode = exception.getStatusCode();
          this.errorCollections = exception.errorCollections;
      }
  
      public RestClientException(final Throwable cause) {
          super(cause);
          this.errorCollections = Collections.emptyList();
          this.statusCode = Optional.absent();
      }
  
      public RestClientException(final Throwable cause, final int statusCode) {
          super(cause);
          this.errorCollections = Collections.emptyList();
          this.statusCode = Optional.of(statusCode);
      }
  
      public RestClientException(final String errorMessage, final Throwable cause) {
          super(errorMessage, cause);
          this.errorCollections = ImmutableList.of(new ErrorCollection(errorMessage));
          statusCode = Optional.absent();
      }
  
      public RestClientException(final Collection<ErrorCollection> errorCollections, final int statusCode) {
          super(errorCollections.toString());
          this.errorCollections = ImmutableList.copyOf(errorCollections);
          this.statusCode = Optional.of(statusCode);
      }
  
      public RestClientException(final Collection<ErrorCollection> errorCollections, final Throwable cause, final int statusCode) {
          super(errorCollections.toString(), cause);
          this.errorCollections = ImmutableList.copyOf(errorCollections);
          this.statusCode = Optional.of(statusCode);
      }
  
      /**
       * @return error messages used while building this exception object
       */
      public Collection<ErrorCollection> getErrorCollections() {
          return errorCollections;
      }
  
      /**
       * @return optional error code of failed http request.
       */
      public Optional<Integer> getStatusCode() {
          return statusCode;
      }
  
      @Override
      public String toString() {
          return "RestClientException{" +
                  "statusCode=" + statusCode +
                  ", errorCollections=" + errorCollections +
                  '}';
      }
  }