/**
* Copyright Microsoft Corporation
*
* Licensed 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 com.microsoft.azure.storage.file;
import java.net.HttpURLConnection;
import java.net.URI;
import java.net.URISyntaxException;
import com.microsoft.azure.storage.DoesServiceRequest;
import com.microsoft.azure.storage.OperationContext;
import com.microsoft.azure.storage.ResultContinuation;
import com.microsoft.azure.storage.ResultContinuationType;
import com.microsoft.azure.storage.ResultSegment;
import com.microsoft.azure.storage.ServiceClient;
import com.microsoft.azure.storage.StorageCredentials;
import com.microsoft.azure.storage.StorageCredentialsAnonymous;
import com.microsoft.azure.storage.StorageException;
import com.microsoft.azure.storage.StorageUri;
import com.microsoft.azure.storage.core.ExecutionEngine;
import com.microsoft.azure.storage.core.LazySegmentedIterable;
import com.microsoft.azure.storage.core.ListResponse;
import com.microsoft.azure.storage.core.ListingContext;
import com.microsoft.azure.storage.core.SR;
import com.microsoft.azure.storage.core.SegmentedStorageRequest;
import com.microsoft.azure.storage.core.StorageRequest;
import com.microsoft.azure.storage.core.Utility;
/**
* Provides a client for accessing the Microsoft Azure File service.
* <p>
* This class provides a point of access to the File service. The service client encapsulates the base URI for the File
* service. It also encapsulates the credentials for accessing the storage account.
*/
public final class CloudFileClient extends ServiceClient {
/**
* Holds the default request option values associated with this Service Client.
*/
private FileRequestOptions defaultRequestOptions = new FileRequestOptions();
/**
* Creates an instance of the <code>CloudFileClient</code> class using the specified File service endpoint and
* account credentials.
*
* @param baseUri
* A <code>java.net.URI</code> object that represents the File service endpoint used to create the
* client.
* @param credentials
* A {@link StorageCredentials} object that represents the account credentials.
*/
public CloudFileClient(final URI baseUri, StorageCredentials credentials) {
this(new StorageUri(baseUri), credentials);
}
/**
* Creates an instance of the <code>CloudFileClient</code> class using the specified File service endpoint and
* account credentials.
*
* @param storageUri
* A {@link StorageUri} object that represents the File service endpoint used to create the
* client.
* @param credentials
* A {@link StorageCredentials} object that represents the account credentials.
*/
public CloudFileClient(StorageUri storageUri, StorageCredentials credentials) {
super(storageUri, credentials);
if (credentials == null || credentials.getClass().equals(StorageCredentialsAnonymous.class)) {
throw new IllegalArgumentException(SR.STORAGE_CREDENTIALS_NULL_OR_ANONYMOUS);
}
FileRequestOptions.applyDefaults(this.defaultRequestOptions);
}
/**
* Gets a {@link CloudFileShare} object with the specified name.
*
* @param shareName
* The name of the share, which must adhere to share naming rules. The share name should not
* include any path separator characters (/).
* Share names must be lowercase, between 3-63 characters long and must start with a letter or
* number. Share names may contain only letters, numbers, and the dash (-) character.
*
* @return A reference to a {@link CloudFileShare} object.
* @throws StorageException
* @throws URISyntaxException
*
* @see <a href="http://msdn.microsoft.com/en-us/library/azure/dn167011.aspx">Naming and Referencing Shares,
* Directories, Files, and Metadata</a>
*/
public CloudFileShare getShareReference(final String shareName) throws URISyntaxException, StorageException {
Utility.assertNotNullOrEmpty("shareName", shareName);
return new CloudFileShare(shareName, this);
}
/**
* Returns an enumerable collection of shares for this File service client.
*
* @return An enumerable collection of {@link CloudFileShare} objects retrieved lazily that represent the
* shares for this client.
*/
@DoesServiceRequest
public Iterable<CloudFileShare> listShares() {
return this.listSharesWithPrefix(null, ShareListingDetails.NONE, null /* options */, null /* opContext */);
}
/**
* Returns an enumerable collection of shares whose names begin with the specified prefix for this File service
* client.
*
* @param prefix
* A <code>String</code> that represents the share name prefix.
*
* @return An enumerable collection of {@link CloudFileShare} objects retrieved lazily that represent the
* shares for this client whose names begin with the specified prefix.
*/
@DoesServiceRequest
public Iterable<CloudFileShare> listShares(final String prefix) {
return this.listSharesWithPrefix(prefix, ShareListingDetails.NONE, null /* options */, null /* opContext */);
}
/**
* Returns an enumerable collection of shares whose names begin with the specified prefix for this File
* service client, using the specified details settings, request options, and operation context.
*
* @param prefix
* A <code>String</code> that represents the share name prefix.
* @param detailsIncluded
* A {@link ShareListingDetails} value that indicates whether share metadata will be returned.
* @param options
* A {@link FileRequestOptions} object that specifies any additional options for the request. Specifying
* <code>null</code> will use the default request options from the associated service client (
* {@link CloudFileClient}).
* @param opContext
* An {@link OperationContext} object that represents the context for the current operation. This object
* is used to track requests to the storage service, and to provide additional runtime information about
* the operation.
*
* @return An enumerable collection of {@link CloudFileShare} objects retrieved lazily that represents the
* shares for this client.
*/
@DoesServiceRequest
public Iterable<CloudFileShare> listShares(final String prefix, final ShareListingDetails detailsIncluded,
final FileRequestOptions options, final OperationContext opContext) {
return this.listSharesWithPrefix(prefix, detailsIncluded, options, opContext);
}
/**
* Returns a result segment of an enumerable collection of shares for this File service client.
*
* @return A {@link ResultSegment} object that contains a segment of the enumerable collection of
* {@link CloudFileShare} objects that represent the shares for this client.
*
* @throws StorageException
* If a storage service error occurred.
*/
@DoesServiceRequest
public ResultSegment<CloudFileShare> listSharesSegmented() throws StorageException {
return this.listSharesSegmented(null, ShareListingDetails.NONE, null, null /* continuationToken */,
null /* options */, null /* opContext */);
}
/**
* Returns a result segment of an enumerable collection of shares whose names begin with the specified
* prefix for this File service client.
*
* @param prefix
* A <code>String</code> that represents the prefix of the share name.
*
* @return A {@link ResultSegment} object that contains a segment of the enumerable collection of
* {@link CloudFileShare} objects that represent the shares whose names begin with the specified
* prefix.
*
* @throws StorageException
* If a storage service error occurred.
*/
@DoesServiceRequest
public ResultSegment<CloudFileShare> listSharesSegmented(final String prefix) throws StorageException {
return this.listSharesWithPrefixSegmented(prefix, ShareListingDetails.NONE, null, null /* continuationToken */,
null /* options */, null /* opContext */);
}
/**
* Returns a result segment of an enumerable collection of shares whose names begin with the specified
* prefix, using the specified listing details options, request options, and operation context.
*
* @param prefix
* A <code>String</code> that represents the prefix of the share name.
* @param detailsIncluded
* A {@link ShareListingDetails} value that indicates whether share metadata will be returned.
* @param maxResults
* The maximum number of results to retrieve. If <code>null</code> or greater
* than 5000, the server will return up to 5,000 items. Must be at least 1.
* @param continuationToken
* A {@link ResultContinuation} object that represents a continuation token returned
* by a previous listing operation.
* @param options
* A {@link FileRequestOptions} object that specifies any additional options for
* the request. Specifying <code>null</code> will use the default request options
* from the associated service client ( {@link CloudFileClient}).
* @param opContext
* An {@link OperationContext} object that represents the context for the current
* operation. This object is used to track requests to the storage service,
* and to provide additional runtime information about the operation.
*
* @return A {@link ResultSegment} object that contains a segment of the enumerable collection
* of {@link CloudFileShare} objects that represent the shares for this client.
*
* @throws StorageException
* If a storage service error occurred.
*/
@DoesServiceRequest
public ResultSegment<CloudFileShare> listSharesSegmented(final String prefix,
final ShareListingDetails detailsIncluded, final Integer maxResults,
final ResultContinuation continuationToken, final FileRequestOptions options,
final OperationContext opContext) throws StorageException {
return this.listSharesWithPrefixSegmented(prefix, detailsIncluded, maxResults, continuationToken, options,
opContext);
}
/**
* Returns an enumerable collection of shares whose names begin with the specified prefix, using the
* specified details settings, request options, and operation context.
*
* @param prefix
* A <code>String</code> that represents the prefix of the share name.
* @param detailsIncluded
* A {@link ShareListingDetails} value that indicates whether share metadata will be returned.
* @param options
* A {@link FileRequestOptions} object that specifies any additional options for the request. Specifying
* <code>null</code> will use the default request options from the associated service client (
* {@link CloudFileClient}).
* @param opContext
* An {@link OperationContext} object that represents the context for the current operation. This object
* is used to track requests to the storage service, and to provide additional runtime information about
* the operation.
*
* @return An enumerable collection of {@link CloudFileShare} objects retrieved lazily that represent the
* shares whose names begin with the specified prefix.
*/
private Iterable<CloudFileShare> listSharesWithPrefix(final String prefix,
final ShareListingDetails detailsIncluded, FileRequestOptions options, OperationContext opContext) {
if (opContext == null) {
opContext = new OperationContext();
}
opContext.initialize();
options = FileRequestOptions.populateAndApplyDefaults(options, this);
SegmentedStorageRequest segmentedRequest = new SegmentedStorageRequest();
return new LazySegmentedIterable<CloudFileClient, Void, CloudFileShare>(this.listSharesWithPrefixSegmentedImpl(
prefix, detailsIncluded, null, options, segmentedRequest), this, null, options.getRetryPolicyFactory(),
opContext);
}
/**
* Returns a result segment of an enumerable collection of shares whose names begin with the specified
* prefix, using the specified listing details options, request options, and operation context.
*
* @param prefix
* A <code>String</code> that represents the prefix of the share name.
* @param detailsIncluded
* A {@link FileListingDetails} value that indicates whether share metadata will be returned.
* @param maxResults
* The maximum number of results to retrieve. If <code>null</code> or greater
* than 5000, the server will return up to 5,000 items. Must be at least 1.
* @param continuationToken
* A {@link ResultContinuation} object that represents a continuation token returned
* by a previous listing operation.
* @param options
* A {@link FileRequestOptions} object that specifies any additional options for
* the request. Specifying <code>null</code> will use the default request options
* from the associated service client ( {@link CloudFileClient}).
* @param opContext
* An {@link OperationContext} object that represents the context for the current
* operation. This object is used to track requests to the storage service,
* and to provide additional runtime information about the operation.
*
* @return A {@link ResultSegment} object that contains a segment of the enumerable collection
* of {@link CloudFileShare} objects that represent the shares for this client.
*
* @throws StorageException
* If a storage service error occurred.
*/
private ResultSegment<CloudFileShare> listSharesWithPrefixSegmented(final String prefix,
final ShareListingDetails detailsIncluded, final Integer maxResults,
final ResultContinuation continuationToken, FileRequestOptions options, OperationContext opContext)
throws StorageException {
if (opContext == null) {
opContext = new OperationContext();
}
opContext.initialize();
options = FileRequestOptions.populateAndApplyDefaults(options, this);
Utility.assertContinuationType(continuationToken, ResultContinuationType.SHARE);
SegmentedStorageRequest segmentedRequest = new SegmentedStorageRequest();
segmentedRequest.setToken(continuationToken);
return ExecutionEngine.executeWithRetry(this, null,
this.listSharesWithPrefixSegmentedImpl(prefix, detailsIncluded, maxResults, options, segmentedRequest),
options.getRetryPolicyFactory(), opContext);
}
private StorageRequest<CloudFileClient, Void, ResultSegment<CloudFileShare>> listSharesWithPrefixSegmentedImpl(
final String prefix, final ShareListingDetails detailsIncluded, final Integer maxResults,
final FileRequestOptions options, final SegmentedStorageRequest segmentedRequest) {
Utility.assertContinuationType(segmentedRequest.getToken(), ResultContinuationType.SHARE);
final ListingContext listingContext = new ListingContext(prefix, maxResults);
final StorageRequest<CloudFileClient, Void, ResultSegment<CloudFileShare>> getRequest = new StorageRequest<CloudFileClient, Void, ResultSegment<CloudFileShare>>(
options, this.getStorageUri()) {
@Override
public void setRequestLocationMode() {
this.setRequestLocationMode(Utility.getListingLocationMode(segmentedRequest.getToken()));
}
@Override
public HttpURLConnection buildRequest(CloudFileClient client, Void parentObject, OperationContext context)
throws Exception {
listingContext.setMarker(segmentedRequest.getToken() != null ? segmentedRequest.getToken()
.getNextMarker() : null);
return FileRequest.listShares(
client.getCredentials().transformUri(client.getStorageUri()).getUri(this.getCurrentLocation()),
options, context, listingContext, detailsIncluded);
}
@Override
public void signRequest(HttpURLConnection connection, CloudFileClient client, OperationContext context)
throws Exception {
StorageRequest.signBlobQueueAndFileRequest(connection, client, -1L, context);
}
@Override
public ResultSegment<CloudFileShare> preProcessResponse(Void parentObject, CloudFileClient client,
OperationContext context) throws Exception {
if (this.getResult().getStatusCode() != HttpURLConnection.HTTP_OK) {
this.setNonExceptionedRetryableFailure(true);
}
return null;
}
@Override
public ResultSegment<CloudFileShare> postProcessResponse(HttpURLConnection connection, Void share,
CloudFileClient client, OperationContext context, ResultSegment<CloudFileShare> storageObject)
throws Exception {
final ListResponse<CloudFileShare> response = ShareListHandler.getShareList(this.getConnection()
.getInputStream(), client);
ResultContinuation newToken = null;
if (response.getNextMarker() != null) {
newToken = new ResultContinuation();
newToken.setNextMarker(response.getNextMarker());
newToken.setContinuationType(ResultContinuationType.SHARE);
newToken.setTargetLocation(this.getResult().getTargetLocation());
}
final ResultSegment<CloudFileShare> resSegment = new ResultSegment<CloudFileShare>(
response.getResults(), response.getMaxResults(), newToken);
// Important for listShares because this is required by the lazy iterator between executions.
segmentedRequest.setToken(resSegment.getContinuationToken());
return resSegment;
}
};
return getRequest;
}
/**
* Retrieves the current {@link FileServiceProperties} for the given storage service. This encapsulates
* the CORS configurations.
*
* @return A {@link FileServiceProperties} object representing the current configuration of the service.
*
* @throws StorageException
* If a storage service error occurred.
*/
@DoesServiceRequest
public final FileServiceProperties downloadServiceProperties() throws StorageException {
return this.downloadServiceProperties(null /* options */, null /* opContext */);
}
/**
* Retrieves the current {@link FileServiceProperties} for the given storage service. This encapsulates
* the CORS configurations.
*
* @param options
* A {@link FileRequestOptions} object that specifies any additional options for the request. Specifying
* <code>null</code> will use the default request options from the associated service client
* ({@link CloudFileClient}).
* @param opContext
* An {@link OperationContext} object that represents the context for the current operation. This object
* is used to track requests to the storage service, and to provide additional runtime information about
* the operation.
*
* @return A {@link FileServiceProperties} object representing the current configuration of the service.
*
* @throws StorageException
* If a storage service error occurred.
*/
@DoesServiceRequest
public final FileServiceProperties downloadServiceProperties(FileRequestOptions options, OperationContext opContext)
throws StorageException {
if (opContext == null) {
opContext = new OperationContext();
}
opContext.initialize();
options = FileRequestOptions.populateAndApplyDefaults(options, this);
return new FileServiceProperties(ExecutionEngine.executeWithRetry(
this, null, this.downloadServicePropertiesImpl(options, false),
options.getRetryPolicyFactory(), opContext));
}
/**
* Uploads a new {@link FileServiceProperties} configuration to the given storage service. This encapsulates
* the CORS configurations.
*
* @param properties
* A {@link FileServiceProperties} object which specifies the service properties to upload.
*
* @throws StorageException
* If a storage service error occurred.
*/
@DoesServiceRequest
public void uploadServiceProperties(final FileServiceProperties properties) throws StorageException {
this.uploadServiceProperties(properties, null /* options */, null /* opContext */);
}
/**
* Uploads a new {@link FileServiceProperties} configuration to the given storage service. This encapsulates
* the CORS configurations.
*
* @param properties
* A {@link FileServiceProperties} object which specifies the service properties to upload.
* @param options
* A {@link FileRequestOptions} object that specifies any additional options for the request. Specifying
* <code>null</code> will use the default request options from the associated service client
* ({@link CloudFileClient}).
* @param opContext
* An {@link OperationContext} object that represents the context for the current operation. This object
* is used to track requests to the storage service, and to provide additional runtime information about
* the operation.
*
* @throws StorageException
* If a storage service error occurred.
*/
@DoesServiceRequest
public void uploadServiceProperties(final FileServiceProperties properties, FileRequestOptions options,
OperationContext opContext) throws StorageException {
if (opContext == null) {
opContext = new OperationContext();
}
opContext.initialize();
options = FileRequestOptions.populateAndApplyDefaults(options, this);
Utility.assertNotNull("properties", properties);
ExecutionEngine.executeWithRetry(this, null,
this.uploadServicePropertiesImpl(properties.getServiceProperties(), options, opContext, false),
options.getRetryPolicyFactory(), opContext);
}
/**
* Gets the {@link FileRequestOptions} that is used for requests associated with this <code>CloudFileClient</code>
*
* @return The {@link FileRequestOptions} object containing the values used by this <code>CloudFileClient</code>
*/
@Override
public FileRequestOptions getDefaultRequestOptions() {
return this.defaultRequestOptions;
}
/**
* Sets the {@link FileRequestOptions} that is used for any requests associated with this
* <code>CloudFileClient</code> object.
*
* @param defaultRequestOptions
* A {@link FileRequestOptions} object which specifies the options to use.
*/
public void setDefaultRequestOptions(FileRequestOptions defaultRequestOptions) {
Utility.assertNotNull("defaultRequestOptions", defaultRequestOptions);
this.defaultRequestOptions = defaultRequestOptions;
}
/**
* Indicates whether path-style URIs are being used.
*
* @return <code>true</code> if using path-style URIs; otherwise, <code>false</code>.
*/
@Override
protected boolean isUsePathStyleUris() {
return super.isUsePathStyleUris();
}
}