/*
* 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.openstack.swift.v1.handlers;
import static org.jclouds.http.HttpUtils.closeClientButKeepContentStream;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.jclouds.blobstore.ContainerNotFoundException;
import org.jclouds.blobstore.KeyNotFoundException;
import org.jclouds.http.HttpCommand;
import org.jclouds.http.HttpErrorHandler;
import org.jclouds.http.HttpResponse;
import org.jclouds.http.HttpResponseException;
import org.jclouds.openstack.swift.v1.CopyObjectException;
import org.jclouds.openstack.swift.v1.reference.SwiftHeaders;
import org.jclouds.rest.AuthorizationException;
// TODO: is there error spec someplace? let's type errors, etc.
public class SwiftErrorHandler implements HttpErrorHandler {
public static final String PREFIX = "^/v[0-9][^/]*/[a-zA-Z]+_[^/]+/";
public static final Pattern CONTAINER_PATH = Pattern.compile(PREFIX + "([^/]+)$");
public static final Pattern CONTAINER_KEY_PATH = Pattern.compile(PREFIX + "([^/]+)/(.*)");
public void handleError(HttpCommand command, HttpResponse response) {
// 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);
message = message != null ? message : String.format("%s -> %s", command.getCurrentRequest().getRequestLine(),
response.getStatusLine());
switch (response.getStatusCode()) {
case 401:
exception = new AuthorizationException(exception.getMessage(), exception);
break;
case 404:
Exception oldException = exception;
String sourcePath = command.getCurrentRequest().getFirstHeaderOrNull(SwiftHeaders.OBJECT_COPY_FROM);
if (sourcePath != null) {
// the path returned here is in the form "/v1/tenant-id/destContainer/destObject"
String path = command.getCurrentRequest().getEndpoint().getPath();
int startOfDestinationPath = path.lastIndexOf("/", path.lastIndexOf("/") - 1);
// get the "/destContainer/destObject" portion of the path
String destinationPath = path.substring(startOfDestinationPath);
exception = new CopyObjectException(sourcePath, destinationPath, message);
exception.initCause(oldException);
} else if (!command.getCurrentRequest().getMethod().equals("DELETE")) {
String path = command.getCurrentRequest().getEndpoint().getPath();
Matcher matcher = CONTAINER_PATH.matcher(path);
if (matcher.find()) {
exception = new ContainerNotFoundException(matcher.group(1), message);
exception.initCause(oldException);
} else {
matcher = CONTAINER_KEY_PATH.matcher(path);
if (matcher.find()) {
exception = new KeyNotFoundException(matcher.group(1), matcher.group(2), message);
exception.initCause(oldException);
}
}
}
break;
case 409:
exception = new IllegalStateException(exception.getMessage(), exception);
break;
}
command.setException(exception);
}
}