/**
* Licensed to jclouds, Inc. (jclouds) under one or more
* contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. jclouds 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.jclouds.gogrid.handlers;
import static org.jclouds.http.HttpUtils.closeClientButKeepContentStream;
import static org.jclouds.http.HttpUtils.releasePayload;
import java.io.ByteArrayInputStream;
import java.util.Set;
import org.jclouds.gogrid.GoGridResponseException;
import org.jclouds.gogrid.domain.internal.ErrorResponse;
import org.jclouds.gogrid.functions.GenericResponseContainer;
import org.jclouds.http.HttpCommand;
import org.jclouds.http.HttpErrorHandler;
import org.jclouds.http.HttpResponse;
import org.jclouds.http.HttpResponseException;
import org.jclouds.http.functions.ParseJson;
import org.jclouds.rest.AuthorizationException;
import org.jclouds.rest.ResourceNotFoundException;
import com.google.common.collect.Iterables;
import com.google.inject.Inject;
/**
* @author Oleksiy Yarmula
*/
public class GoGridErrorHandler implements HttpErrorHandler {
private final ParseJson<GenericResponseContainer<ErrorResponse>> errorParser;
@Inject
public GoGridErrorHandler(ParseJson<GenericResponseContainer<ErrorResponse>> errorParser) {
this.errorParser = errorParser;
}
@Override
public void handleError(HttpCommand command, HttpResponse response) {
try {
// it is important to always read fully and close streams
byte[] data = closeClientButKeepContentStream(response);
String message = data != null ? new String(data) : null;
Exception exception = message != null ? new HttpResponseException(command, response, message)
: new HttpResponseException(command, response);
Set<ErrorResponse> errors = parseErrorsFromContentOrNull(data);
if (errors != null)
exception = new GoGridResponseException(command, response, errors);
switch (response.getStatusCode()) {
case 400:
if (Iterables.get(errors, 0).getMessage().indexOf("No object found") != -1) {
exception = new ResourceNotFoundException(Iterables.get(errors, 0).getMessage(), exception);
break;
}
break;
case 403:
exception = new AuthorizationException(exception.getMessage(), exception);
break;
}
command.setException(exception);
} finally {
releasePayload(response);
}
}
Set<ErrorResponse> parseErrorsFromContentOrNull(byte[] response) {
if (response != null) {
try {
return errorParser.apply(new ByteArrayInputStream(response)).getList();
} catch (/* Parsing */Exception e) {
return null;
}
}
return null;
}
}