/**
* Populates the object from the XMLStreamReader
*
* @param xmlr the XMLStreamReader to read from
* @throws XMLStreamException if there is an error parsing the stream
* @throws ParseException if there is an error in parsing a date
* @throws URISyntaxException if the uri is invalid
*/
protected static BlobContainerAttributes readBlobContainerAttributes(final XMLStreamReader xmlr)
throws XMLStreamException, ParseException, URISyntaxException {
int eventType = xmlr.getEventType();
final BlobContainerAttributes attributes = new BlobContainerAttributes();
while (xmlr.hasNext()) {
eventType = xmlr.next();
final String name = xmlr.getName().toString();
if (eventType == XMLStreamConstants.START_ELEMENT) {
if (name.equals(BlobConstants.PROPERTIES)) {
attributes.setProperties(BlobDeserializationHelper.readBlobContainerProperties(xmlr));
xmlr.require(XMLStreamConstants.END_ELEMENT, null, BlobConstants.PROPERTIES);
} else if (name.equals(Constants.URL_ELEMENT)) {
attributes.setUri(new URI(Utility.readElementFromXMLReader(xmlr, Constants.URL_ELEMENT)));
} else if (name.equals(Constants.NAME_ELEMENT)) {
attributes.setName(Utility.readElementFromXMLReader(xmlr, Constants.NAME_ELEMENT));
} else if (name.equals(Constants.METADATA_ELEMENT)) {
// parse metadata
attributes.setMetadata(DeserializationHelper.parseMetadateFromXML(xmlr));
xmlr.require(XMLStreamConstants.END_ELEMENT, null, Constants.METADATA_ELEMENT);
}
} else if (eventType == XMLStreamConstants.END_ELEMENT
&& name.equals(BlobConstants.CONTAINER_ELEMENT)) {
break;
}
}
return attributes;
}
/**
* Reads BlobItems from the XMLStreamReader, reader must be at Start element of BlobsElement
*
* @param xmlr the XMLStreamReader to read from
* @param serviceClient the CloudBlobClient associated with the objects.
* @param container the container associated with the objects.
* @return the BlobItems from the stream
* @throws XMLStreamException if there is an error parsing the stream
* @throws ParseException if there is an error in parsing a date
* @throws URISyntaxException if the uri is invalid
* @throws StorageException
*/
public static ArrayList<ListBlobItem> readBlobItems(
final XMLStreamReader xmlr,
final CloudBlobClient serviceClient,
final CloudBlobContainer container)
throws XMLStreamException, ParseException, URISyntaxException, StorageException {
int eventType = xmlr.getEventType();
final ArrayList<ListBlobItem> retBlobs = new ArrayList<ListBlobItem>();
xmlr.require(XMLStreamConstants.START_ELEMENT, null, BlobConstants.BLOBS_ELEMENT);
// check if there are more events in the input stream
while (xmlr.hasNext()) {
eventType = xmlr.next();
final String name = xmlr.getName().toString();
if (eventType == XMLStreamConstants.START_ELEMENT) {
if (name.equals(BlobConstants.BLOB_ELEMENT)) {
retBlobs.add(BlobDeserializationHelper.readBlob(xmlr, serviceClient, container));
} else if (name.equals(BlobConstants.BLOB_PREFIX_ELEMENT)) {
retBlobs.add(BlobDeserializationHelper.readDirectory(xmlr, serviceClient, container));
} else {
throw new StorageException(
StorageErrorCodeStrings.INVALID_XML_DOCUMENT,
"The response received is invalid or improperly formatted.",
Constants.HeaderConstants.HTTP_UNUSED_306,
null,
null);
}
} else {
break;
}
}
xmlr.require(XMLStreamConstants.END_ELEMENT, null, BlobConstants.BLOBS_ELEMENT);
return retBlobs;
}
/**
* Populates CloudBlobContainer objects from the XMLStreamReader, reader must be at Start element
* of ContainersElement
*
* @param xmlr the XMLStreamReader object
* @param serviceClient the CloudBlobClient associated with the objects.
* @return an ArrayList of CloudBlobContainer from the stream.
* @throws XMLStreamException if there is a parsing exception
* @throws ParseException if a date value is not correctly encoded
* @throws URISyntaxException
* @throws StorageException
*/
public static ArrayList<CloudBlobContainer> readContainers(
final XMLStreamReader xmlr, final CloudBlobClient serviceClient)
throws XMLStreamException, ParseException, URISyntaxException, StorageException {
int eventType = xmlr.getEventType();
xmlr.require(XMLStreamConstants.START_ELEMENT, null, BlobConstants.CONTAINERS_ELEMENT);
final ArrayList<CloudBlobContainer> containers = new ArrayList<CloudBlobContainer>();
eventType = xmlr.next();
while (eventType == XMLStreamConstants.START_ELEMENT
&& xmlr.hasName()
&& BlobConstants.CONTAINER_ELEMENT.equals(xmlr.getName().toString())) {
containers.add(BlobDeserializationHelper.readContainer(xmlr, serviceClient));
eventType = xmlr.next();
}
xmlr.require(XMLStreamConstants.END_ELEMENT, null, BlobConstants.CONTAINERS_ELEMENT);
return containers;
}
/**
* Populates the container from an XMLStreamReader
*
* @param xmlr the XMLStreamReader to read from
* @throws XMLStreamException if there is an error parsing the stream
* @throws ParseException if there is an error in parsing a date
* @throws URISyntaxException if the uri is invalid
* @throws StorageException
*/
protected static CloudBlobContainer readContainer(
final XMLStreamReader xmlr, final CloudBlobClient serviceClient)
throws XMLStreamException, ParseException, URISyntaxException, StorageException {
xmlr.require(XMLStreamConstants.START_ELEMENT, null, BlobConstants.CONTAINER_ELEMENT);
final BlobContainerAttributes attributes =
BlobDeserializationHelper.readBlobContainerAttributes(xmlr);
final CloudBlobContainer retContainer =
new CloudBlobContainer(attributes.getUri(), serviceClient);
retContainer.setMetadata(attributes.getMetadata());
retContainer.setName(attributes.getName());
retContainer.setProperties(attributes.getProperties());
retContainer.setUri(attributes.getUri());
xmlr.require(XMLStreamConstants.END_ELEMENT, null, BlobConstants.CONTAINER_ELEMENT);
return retContainer;
}
/**
* Reserved for internal use. Populates the blob from an XMLStreamReader, reader must be at Start
* element of Blob
*
* @param xmlr the XMLStreamReader to read from
* @param serviceClient the CloudBlobClient associated with the objects.
* @throws XMLStreamException if there is an error parsing the stream
* @throws ParseException if there is an error in parsing a date
* @throws URISyntaxException if the uri is invalid
* @throws StorageException
*/
protected static CloudBlob readBlob(
final XMLStreamReader xmlr,
final CloudBlobClient serviceClient,
final CloudBlobContainer container)
throws XMLStreamException, ParseException, URISyntaxException, StorageException {
xmlr.require(XMLStreamConstants.START_ELEMENT, null, BlobConstants.BLOB_ELEMENT);
String blobName = Constants.EMPTY_STRING;
String snapshotID = null;
String urlString = null;
HashMap<String, String> metadata = null;
BlobProperties properties = null;
CopyState copyState = null;
int eventType = xmlr.getEventType();
// check if there are more events in the input stream
while (xmlr.hasNext()) {
eventType = xmlr.next();
final String name = xmlr.getName().toString();
if (eventType == XMLStreamConstants.START_ELEMENT) {
if (name.equals(Constants.URL_ELEMENT)) {
urlString = Utility.readElementFromXMLReader(xmlr, Constants.URL_ELEMENT);
} else if (name.equals(BlobConstants.SNAPSHOT_ELEMENT)) {
snapshotID = Utility.readElementFromXMLReader(xmlr, BlobConstants.SNAPSHOT_ELEMENT);
} else if (name.equals(Constants.NAME_ELEMENT)) {
blobName = Utility.readElementFromXMLReader(xmlr, Constants.NAME_ELEMENT);
} else if (name.equals(BlobConstants.PROPERTIES)) {
properties = BlobDeserializationHelper.readBlobProperties(xmlr);
xmlr.require(XMLStreamConstants.END_ELEMENT, null, BlobConstants.PROPERTIES);
} else if (name.equals(Constants.METADATA_ELEMENT)) {
metadata = DeserializationHelper.parseMetadateFromXML(xmlr);
xmlr.require(XMLStreamConstants.END_ELEMENT, null, Constants.METADATA_ELEMENT);
} else if (name.equals(Constants.COPY_ID_ELEMENT)) {
if (copyState == null) {
copyState = new CopyState();
}
copyState.setCopyId(Utility.readElementFromXMLReader(xmlr, Constants.COPY_ID_ELEMENT));
} else if (name.equals(Constants.COPY_COMPLETION_TIME_ELEMENT)) {
if (copyState == null) {
copyState = new CopyState();
}
copyState.setCompletionTime(
Utility.parseRFC1123DateFromStringInGMT(
Utility.readElementFromXMLReader(xmlr, Constants.COPY_COMPLETION_TIME_ELEMENT)));
} else if (name.equals(Constants.COPY_STATUS_ELEMENT)) {
if (copyState == null) {
copyState = new CopyState();
}
copyState.setStatus(
CopyStatus.parse(
Utility.readElementFromXMLReader(xmlr, Constants.COPY_STATUS_ELEMENT)));
} else if (name.equals(Constants.COPY_SOURCE_ELEMENT)) {
if (copyState == null) {
copyState = new CopyState();
}
copyState.setSource(
new URI(Utility.readElementFromXMLReader(xmlr, Constants.COPY_SOURCE_ELEMENT)));
} else if (name.equals(Constants.COPY_PROGRESS_ELEMENT)) {
if (copyState == null) {
copyState = new CopyState();
}
final String tempString =
Utility.readElementFromXMLReader(xmlr, Constants.COPY_PROGRESS_ELEMENT);
String[] progressSequence = tempString.split("/");
copyState.setBytesCopied(Long.parseLong(progressSequence[0]));
copyState.setTotalBytes(Long.parseLong(progressSequence[1]));
} else if (name.equals(Constants.COPY_STATUS_DESCRIPTION_ELEMENT)) {
if (copyState == null) {
copyState = new CopyState();
}
copyState.setStatusDescription(
Utility.readElementFromXMLReader(xmlr, Constants.COPY_STATUS_DESCRIPTION_ELEMENT));
}
} else if (eventType == XMLStreamConstants.END_ELEMENT
&& name.equals(BlobConstants.BLOB_ELEMENT)) {
break;
}
}
xmlr.require(XMLStreamConstants.END_ELEMENT, null, BlobConstants.BLOB_ELEMENT);
// Assemble and return
if (properties != null) {
CloudBlob retBlob = null;
final int blobNameSectionIndex = urlString.lastIndexOf("/".concat(blobName));
final URI baseUri = new URI(urlString.substring(0, blobNameSectionIndex + 1));
String query = null;
if (blobNameSectionIndex + 1 + blobName.length() < urlString.length()) {
// Snapshot blob URI
// example:http://<yourstorageaccount>.blob.core.windows.net/<yourcontainer>/<yourblobname>?snapshot=2009-12-03T15%3a26%3a19.4466877Z
query = urlString.substring(blobNameSectionIndex + 1 + blobName.length() + 1);
}
final URI blobURI =
new URI(
baseUri.getScheme(),
baseUri.getAuthority(),
baseUri.getRawPath().concat(blobName),
query,
null);
if (properties.getBlobType() == BlobType.BLOCK_BLOB) {
retBlob = new CloudBlockBlob(blobURI, serviceClient, container);
} else if (properties.getBlobType() == BlobType.PAGE_BLOB) {
retBlob = new CloudPageBlob(blobURI, serviceClient, container);
} else {
throw new StorageException(
StorageErrorCodeStrings.INVALID_XML_DOCUMENT,
"The response received is invalid or improperly formatted.",
Constants.HeaderConstants.HTTP_UNUSED_306,
null,
null);
}
retBlob.uri = blobURI;
retBlob.snapshotID = snapshotID;
retBlob.properties = properties;
retBlob.metadata = metadata;
retBlob.copyState = copyState;
return retBlob;
} else {
throw new StorageException(
StorageErrorCodeStrings.INVALID_XML_DOCUMENT,
"The response received is invalid or improperly formatted.",
Constants.HeaderConstants.HTTP_UNUSED_306,
null,
null);
}
}
