/*
* 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.jclouds.cloudsigma2.handlers;
import com.google.common.base.Throwables;
import com.google.common.io.Closeables;
import org.jclouds.http.HttpCommand;
import org.jclouds.http.HttpErrorHandler;
import org.jclouds.http.HttpResponse;
import org.jclouds.http.HttpResponseException;
import org.jclouds.logging.Logger;
import org.jclouds.rest.AuthorizationException;
import org.jclouds.rest.ResourceNotFoundException;
import org.jclouds.util.Strings2;
import javax.annotation.Resource;
import javax.inject.Singleton;
import java.io.IOException;
/**
* This will parse and set an appropriate exception on the command object.
* <p/>
* <p/>
* Errors are returned with an appropriate HTTP status code, an X-Elastic- Error header specifying
* the error type, and a text description in the HTTP body.
*
* @author Vladimir Shevchenko
*/
@Singleton
public class CloudSigmaErrorHandler implements HttpErrorHandler {
@Resource
protected Logger logger = Logger.NULL;
public void handleError(HttpCommand command, HttpResponse response) {
// it is important to always read fully and close streams
String message = parseMessage(response);
Exception exception = message != null ? new HttpResponseException(command, response, message)
: new HttpResponseException(command, response);
try {
message = message != null ? message : String.format("%s -> %s", command.getCurrentRequest().getRequestLine(),
response.getStatusLine());
switch (response.getStatusCode()) {
case 400:
if ((command.getCurrentRequest().getEndpoint().getPath().endsWith("/info"))
|| (message != null && message.indexOf("could not be found") != -1))
exception = new ResourceNotFoundException(message, exception);
else if (message != null && message.indexOf("currently in use") != -1)
exception = new IllegalStateException(message, exception);
else
exception = new IllegalArgumentException(message, exception);
break;
case 401:
exception = new AuthorizationException(message, exception);
break;
case 402:
exception = new IllegalStateException(message, exception);
break;
case 404:
if (!command.getCurrentRequest().getMethod().equals("DELETE")) {
exception = new ResourceNotFoundException(message, exception);
}
break;
case 405:
exception = new IllegalArgumentException(message, exception);
break;
case 409:
exception = new IllegalStateException(message, exception);
break;
}
} finally {
try {
Closeables.close(response.getPayload(), true);
} catch (IOException e) {
// This code will never be reached
throw Throwables.propagate(e);
}
command.setException(exception);
}
}
public String parseMessage(HttpResponse response) {
if (response.getPayload() == null)
return null;
try {
return Strings2.toString(response.getPayload());
} catch (IOException e) {
throw Throwables.propagate(e);
} finally {
try {
response.getPayload().getInput().close();
} catch (IOException e) {
throw Throwables.propagate(e);
}
}
}
}