/*
* ############################################################
* operations which alter the physical resource and persist changes
* ############################################################
*/
@Override
public boolean delete() throws ResourceException, IOException {
try {
S3Response response = S3Object.deleteObject(this.uri);
if (response.getReturnCode() != HttpURLConnection.HTTP_NO_CONTENT)
throw new ResourceException(
"something went wrong when deleting the file: " + response.toString());
/*
* At this moment we know the URI of the object and that it is deleted (isFile=FALSE). Therefore the resource
* has to be reset, to behave like a new constructed one.
* But under versioning it still exists but with new versionID and delete marker
*/
this.s3Object = new S3Object(response);
this.modifiedHeader = null;
return true;
} catch (S3Exception e) {
if (e.getErrorCode() == HttpURLConnection.HTTP_NOT_FOUND) {
logger.info("file not found" + e.toString());
return false;
} else throw new ResourceException("error while deleting", e);
}
}
S3Response invoke(
@Nullable String bucket, @Nullable String object, @Nullable String temporaryEndpoint)
throws S3Exception, CloudException, InternalException {
if (wire.isDebugEnabled()) {
wire.debug("");
wire.debug(
"----------------------------------------------------------------------------------");
}
try {
StringBuilder url = new StringBuilder();
boolean leaveOpen = false;
HttpRequestBase method;
HttpClient client;
int status;
if (provider.getEC2Provider().isAWS()) {
url.append("https://");
if (temporaryEndpoint == null) {
boolean validDomainName = isValidDomainName(bucket);
if (bucket != null && validDomainName) {
url.append(bucket);
url.append(".");
}
url.append("s3.amazonaws.com/");
if (bucket != null && !validDomainName) {
url.append(bucket);
url.append("/");
}
} else {
url.append(temporaryEndpoint);
url.append("/");
}
} else if (provider.getEC2Provider().isStorage()
&& "google".equalsIgnoreCase(provider.getProviderName())) {
url.append("https://");
if (temporaryEndpoint == null) {
if (bucket != null) {
url.append(bucket);
url.append(".");
}
url.append("commondatastorage.googleapis.com/");
} else {
url.append(temporaryEndpoint);
url.append("/");
}
} else {
int idx = 0;
if (!provider.getContext().getEndpoint().startsWith("http")) {
url.append("https://");
} else {
idx = provider.getContext().getEndpoint().indexOf("https://");
if (idx == -1) {
idx = "http://".length();
url.append("http://");
} else {
idx = "https://".length();
url.append("https://");
}
}
String service = "";
if (provider.getEC2Provider().isEucalyptus()) {
service = "Walrus/";
}
if (temporaryEndpoint == null) {
url.append(provider.getContext().getEndpoint().substring(idx));
if (!provider.getContext().getEndpoint().endsWith("/")) {
url.append("/").append(service);
} else {
url.append(service);
}
} else {
url.append(temporaryEndpoint);
url.append("/");
url.append(service);
}
if (bucket != null) {
url.append(bucket);
url.append("/");
}
}
if (object != null) {
url.append(object);
} else if (parameters != null) {
boolean first = true;
if (object != null && object.indexOf('?') != -1) {
first = false;
}
for (Map.Entry<String, String> entry : parameters.entrySet()) {
String key = entry.getKey();
String val = entry.getValue();
if (first) {
url.append("?");
first = false;
} else {
url.append("&");
}
if (val != null) {
url.append(AWSCloud.encode(key, false));
url.append("=");
url.append(AWSCloud.encode(val, false));
} else {
url.append(AWSCloud.encode(key, false));
}
}
}
if (provider.getEC2Provider().isStorage()
&& provider.getProviderName().equalsIgnoreCase("Google")) {
headers.put(AWSCloud.P_GOOG_DATE, getDate());
} else {
headers.put(AWSCloud.P_AWS_DATE, getDate());
}
method = action.getMethod(url.toString());
if (headers != null) {
for (Map.Entry<String, String> entry : headers.entrySet()) {
method.addHeader(entry.getKey(), entry.getValue());
}
}
if (contentType == null && body != null) {
contentType = "application/xml";
method.addHeader("Content-Type", contentType);
}
try {
String hash = null;
String signature;
signature =
provider.signS3(
new String(provider.getContext().getAccessPublic(), "utf-8"),
provider.getContext().getAccessPrivate(),
method.getMethod(),
hash,
contentType,
headers,
bucket,
object);
method.addHeader(AWSCloud.P_CFAUTH, signature);
} catch (UnsupportedEncodingException e) {
logger.error(e);
e.printStackTrace();
throw new InternalException(e);
}
if (body != null) {
try {
((HttpEntityEnclosingRequestBase) method)
.setEntity(new StringEntity(body, "application/xml", "utf-8"));
} catch (UnsupportedEncodingException e) {
throw new InternalException(e);
}
} else if (uploadFile != null) {
((HttpEntityEnclosingRequestBase) method)
.setEntity(new FileEntity(uploadFile, contentType));
}
attempts++;
client = getClient(url.toString(), body == null && uploadFile == null);
if (wire.isDebugEnabled()) {
wire.debug("[" + url.toString() + "]");
wire.debug(method.getRequestLine().toString());
for (Header header : method.getAllHeaders()) {
wire.debug(header.getName() + ": " + header.getValue());
}
wire.debug("");
if (body != null) {
try {
wire.debug(EntityUtils.toString(((HttpEntityEnclosingRequestBase) method).getEntity()));
} catch (IOException ignore) {
}
wire.debug("");
} else if (uploadFile != null) {
wire.debug("-- file upload --");
wire.debug("");
}
}
S3Response response = new S3Response();
HttpResponse httpResponse;
try {
httpResponse = client.execute(method);
if (wire.isDebugEnabled()) {
wire.debug(httpResponse.getStatusLine().toString());
for (Header header : httpResponse.getAllHeaders()) {
wire.debug(header.getName() + ": " + header.getValue());
}
wire.debug("");
}
status = httpResponse.getStatusLine().getStatusCode();
} catch (IOException e) {
logger.error(url + ": " + e.getMessage());
e.printStackTrace();
throw new InternalException(e);
}
response.headers = httpResponse.getAllHeaders();
HttpEntity entity = httpResponse.getEntity();
InputStream input = null;
if (entity != null) {
try {
input = entity.getContent();
} catch (IOException e) {
throw new CloudException(e);
}
}
try {
if (status == HttpServletResponse.SC_OK
|| status == HttpServletResponse.SC_CREATED
|| status == HttpServletResponse.SC_ACCEPTED) {
Header clen = httpResponse.getFirstHeader("Content-Length");
long len = -1L;
if (clen != null) {
len = Long.parseLong(clen.getValue());
}
if (len != 0L) {
try {
Header ct = httpResponse.getFirstHeader("Content-Type");
if (ct != null
&& (ct.getValue().startsWith("application/xml")
|| ct.getValue().startsWith("text/xml"))) {
try {
response.document = parseResponse(input);
return response;
} finally {
input.close();
}
} else if (ct != null
&& ct.getValue().startsWith("application/octet-stream")
&& len < 1) {
return null;
} else {
response.contentLength = len;
if (ct != null) {
response.contentType = ct.getValue();
}
response.input = input;
response.method = method;
leaveOpen = true;
return response;
}
} catch (IOException e) {
logger.error(e);
e.printStackTrace();
throw new CloudException(e);
}
} else {
return response;
}
} else if (status == HttpServletResponse.SC_NO_CONTENT) {
return response;
} else if (status == HttpServletResponse.SC_NOT_FOUND) {
throw new S3Exception(status, null, null, "Object not found.");
} else {
if (status == HttpServletResponse.SC_SERVICE_UNAVAILABLE
|| status == HttpServletResponse.SC_INTERNAL_SERVER_ERROR) {
if (attempts >= 5) {
String msg;
if (status == HttpServletResponse.SC_SERVICE_UNAVAILABLE) {
msg = "Cloud service is currently unavailable.";
} else {
msg = "The cloud service encountered a server error while processing your request.";
}
logger.error(msg);
throw new CloudException(msg);
} else {
leaveOpen = true;
if (input != null) {
try {
input.close();
} catch (IOException ignore) {
}
}
try {
Thread.sleep(5000L);
} catch (InterruptedException ignore) {
}
return invoke(bucket, object);
}
}
try {
Document doc;
try {
logger.warn("Received error code: " + status);
doc = parseResponse(input);
} finally {
input.close();
}
if (doc != null) {
String endpoint = null, code = null, message = null, requestId = null;
NodeList blocks = doc.getElementsByTagName("Error");
if (blocks.getLength() > 0) {
Node error = blocks.item(0);
NodeList attrs;
attrs = error.getChildNodes();
for (int i = 0; i < attrs.getLength(); i++) {
Node attr = attrs.item(i);
if (attr.getNodeName().equals("Code") && attr.hasChildNodes()) {
code = attr.getFirstChild().getNodeValue().trim();
} else if (attr.getNodeName().equals("Message") && attr.hasChildNodes()) {
message = attr.getFirstChild().getNodeValue().trim();
} else if (attr.getNodeName().equals("RequestId") && attr.hasChildNodes()) {
requestId = attr.getFirstChild().getNodeValue().trim();
} else if (attr.getNodeName().equals("Endpoint") && attr.hasChildNodes()) {
endpoint = attr.getFirstChild().getNodeValue().trim();
}
}
}
if (endpoint != null && code.equals("TemporaryRedirect")) {
if (temporaryEndpoint != null) {
throw new CloudException("Too deep redirect to " + endpoint);
} else {
return invoke(bucket, object, endpoint);
}
} else {
if (message == null) {
throw new CloudException(
"Unable to identify error condition: "
+ status
+ "/"
+ requestId
+ "/"
+ code);
}
throw new S3Exception(status, requestId, code, message);
}
} else {
throw new CloudException("Unable to parse error.");
}
} catch (IOException e) {
if (status == HttpServletResponse.SC_FORBIDDEN) {
throw new S3Exception(
status, "", "AccessForbidden", "Access was denied without explanation.");
}
throw new CloudException(e);
} catch (RuntimeException e) {
throw new CloudException(e);
} catch (Error e) {
throw new CloudException(e);
}
}
} finally {
if (!leaveOpen) {
if (input != null) {
try {
input.close();
} catch (IOException ignore) {
}
}
}
}
} finally {
if (wire.isDebugEnabled()) {
wire.debug(
"----------------------------------------------------------------------------------");
wire.debug("");
}
}
}
