java.lang.Object
- java.nio.file.FileSystem
- - com.azure.storage.blob.nio.AzureFileSystem

All Implemented Interfaces:

Closeable, AutoCloseable
```
public final class AzureFileSystem
extends FileSystem
```
Implement's Java's FileSystem interface for Azure Blob Storage.
The following behavior is specific to this FileSystem:
In the hierarchy of this file system, an AzureFileSystem corresponds to an Azure Blob Storage account. A file store is represented by a container in the storage account. Each container has one root directory.
Closing the file system will not block on outstanding operations. Any operations in progress will be allowed to terminate naturally after the file system is closed, though no further operations may be started after the parent file system is closed.
All instance of AzureFileSystem are opened for read-write access.
For a more complete description of the uses for the constants described here, please see the instructions for opening and configuring a FileSystem in the docs of FileSystemProvider.

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`AZURE_STORAGE_DOWNLOAD_RESUME_RETRIES`	Expected type: Integer
`static String`	`AZURE_STORAGE_FILE_STORES`	Expected type: String
`static String`	`AZURE_STORAGE_HTTP_LOG_DETAIL_LEVEL`	Expected type: com.azure.core.http.policy.HttpLogLevelDetail
`static String`	`AZURE_STORAGE_MAX_CONCURRENCY_PER_REQUEST`	Expected type: Integer
`static String`	`AZURE_STORAGE_MAX_RETRY_DELAY_IN_MS`	Expected type: Long
`static String`	`AZURE_STORAGE_MAX_TRIES`	Expected type: Integer
`static String`	`AZURE_STORAGE_PUT_BLOB_THRESHOLD`	Expected type: Long
`static String`	`AZURE_STORAGE_RETRY_DELAY_IN_MS`	Expected type: Long
`static String`	`AZURE_STORAGE_RETRY_POLICY_TYPE`	Expected type: com.azure.storage.common.policy.RetryPolicyType
`static String`	`AZURE_STORAGE_SAS_TOKEN_CREDENTIAL`	Expected type: String
`static String`	`AZURE_STORAGE_SECONDARY_HOST`	Expected type: String
`static String`	`AZURE_STORAGE_SHARED_KEY_CREDENTIAL`	Expected type: String
`static String`	`AZURE_STORAGE_SKIP_INITIAL_CONTAINER_CHECK`	Expected type: Boolean
`static String`	`AZURE_STORAGE_TRY_TIMEOUT`	Expected type: Integer
`static String`	`AZURE_STORAGE_UPLOAD_BLOCK_SIZE`	Expected type: Long

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	Closes this file system.
`boolean`	`equals(Object o)`
`Iterable<FileStore>`	`getFileStores()`	Returns an object to iterate over the underlying file stores
`Path`	`getPath(String first, String... more)`	Converts a path string, or a sequence of more that when joined form a path string, to a Path.
`PathMatcher`	`getPathMatcher(String s)`	Unsupported.
`Iterable<Path>`	`getRootDirectories()`	Returns an object to iterate over the paths of the root directories.
`String`	`getSeparator()`	Returns the name separator, represented as a string.
`UserPrincipalLookupService`	`getUserPrincipalLookupService()`	Unsupported.
`int`	`hashCode()`
`boolean`	`isOpen()`	Tells whether this file system is open.
`boolean`	`isReadOnly()`	Tells whether this file system allows only read-only access to its file stores.
`WatchService`	`newWatchService()`	Unsupported.
`FileSystemProvider`	`provider()`	Returns the provider that created this file system.
`Set<String>`	`supportedFileAttributeViews()`	Returns the set of the names of the file attribute views supported by this FileSystem.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - AZURE_STORAGE_SHARED_KEY_CREDENTIAL
```
public static final String AZURE_STORAGE_SHARED_KEY_CREDENTIAL
```
    Expected type: String
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_SAS_TOKEN_CREDENTIAL
```
public static final String AZURE_STORAGE_SAS_TOKEN_CREDENTIAL
```
    Expected type: String
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_HTTP_LOG_DETAIL_LEVEL
```
public static final String AZURE_STORAGE_HTTP_LOG_DETAIL_LEVEL
```
    Expected type: com.azure.core.http.policy.HttpLogLevelDetail
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_MAX_TRIES
```
public static final String AZURE_STORAGE_MAX_TRIES
```
    Expected type: Integer
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_TRY_TIMEOUT
```
public static final String AZURE_STORAGE_TRY_TIMEOUT
```
    Expected type: Integer
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_RETRY_DELAY_IN_MS
```
public static final String AZURE_STORAGE_RETRY_DELAY_IN_MS
```
    Expected type: Long
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_MAX_RETRY_DELAY_IN_MS
```
public static final String AZURE_STORAGE_MAX_RETRY_DELAY_IN_MS
```
    Expected type: Long
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_RETRY_POLICY_TYPE
```
public static final String AZURE_STORAGE_RETRY_POLICY_TYPE
```
    Expected type: com.azure.storage.common.policy.RetryPolicyType
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_SECONDARY_HOST
```
public static final String AZURE_STORAGE_SECONDARY_HOST
```
    Expected type: String
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_UPLOAD_BLOCK_SIZE
```
public static final String AZURE_STORAGE_UPLOAD_BLOCK_SIZE
```
    Expected type: Long
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_MAX_CONCURRENCY_PER_REQUEST
```
public static final String AZURE_STORAGE_MAX_CONCURRENCY_PER_REQUEST
```
    Expected type: Integer
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_PUT_BLOB_THRESHOLD
```
public static final String AZURE_STORAGE_PUT_BLOB_THRESHOLD
```
    Expected type: Long
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_DOWNLOAD_RESUME_RETRIES
```
public static final String AZURE_STORAGE_DOWNLOAD_RESUME_RETRIES
```
    Expected type: Integer
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_FILE_STORES
```
public static final String AZURE_STORAGE_FILE_STORES
```
    Expected type: String
    
    See Also:
    
    Constant Field Values
  - AZURE_STORAGE_SKIP_INITIAL_CONTAINER_CHECK
```
public static final String AZURE_STORAGE_SKIP_INITIAL_CONTAINER_CHECK
```
    Expected type: Boolean
    
    See Also:
    
    Constant Field Values
- Method Detail
  - provider
```
public FileSystemProvider provider()
```
    Returns the provider that created this file system.
    
    Specified by:
    
    provider in class FileSystem
    
    Returns:
    
    the provider that created this file system.
  - close
```
public void close()
           throws IOException
```
    Closes this file system.
    After a file system is closed then all subsequent access to the file system, either by methods defined by this class or on objects associated with this file system, throw ClosedFileSystemException. If the file system is already closed then invoking this method has no effect.
    Closing the file system will not block on outstanding operations. Any operations in progress will be allowed to terminate naturally after the file system is closed, though no further operations may be started after the parent file system is closed.
    Once closed, a file system with the same identifier as the one closed may be re-opened.
    
    Specified by:
    
    close in interface AutoCloseable
    
    Specified by:
    
    close in interface Closeable
    
    Specified by:
    
    close in class FileSystem
    
    Throws:
    
    IOException - If an I/O error occurs.
  - isOpen
```
public boolean isOpen()
```
    Tells whether this file system is open.
    
    Specified by:
    
    isOpen in class FileSystem
    
    Returns:
    
    whether this file system is open.
  - isReadOnly
```
public boolean isReadOnly()
```
    Tells whether this file system allows only read-only access to its file stores.
    Always returns false. It may be the case that the authentication method provided to this file system only supports read operations and hence the file system is implicitly read only in this view, but that does not imply the underlying account/file system is inherently read only. Creating/specifying read only file systems is not supported.
    
    Specified by:
    
    isReadOnly in class FileSystem
    
    Returns:
    
    false
  - getSeparator
```
public String getSeparator()
```
    Returns the name separator, represented as a string.
    The separator used in this file system is "/".
    
    Specified by:
    
    getSeparator in class FileSystem
    
    Returns:
    
    "/"
  - getRootDirectories
```
public Iterable<Path> getRootDirectories()
```
    Returns an object to iterate over the paths of the root directories.
    The list of root directories corresponds to the list of available file stores and therefore containers specified upon initialization. A root directory always takes the form "<file-store-name>:". This list will respect the parameters provided during initialization.
    If a finite list of containers was provided on start up, this list will not change during the lifetime of this object. If containers are added to the account after initialization, they will be ignored. If a container is deleted or otherwise becomes unavailable, its root directory will still be returned but operations to it will fail.
    
    Specified by:
    
    getRootDirectories in class FileSystem
    
    Returns:
    
    an object to iterate over the paths of the root directories
  - getFileStores
```
public Iterable<FileStore> getFileStores()
```
    Returns an object to iterate over the underlying file stores
    This list will respect the parameters provided during initialization.
    If a finite list of containers was provided on start up, this list will not change during the lifetime of this object. If containers are added to the account after initialization, they will be ignored. If a container is deleted or otherwise becomes unavailable, its root directory will still be returned but operations to it will fail.
    
    Specified by:
    
    getFileStores in class FileSystem
  - supportedFileAttributeViews
```
public Set<String> supportedFileAttributeViews()
```
    Returns the set of the names of the file attribute views supported by this FileSystem.
    This file system supports the following views:
    
    BasicFileAttributeView
    
    AzureBasicFileAttributeView
    
    AzureBlobFileAttributeView
    Specified by:
    
    supportedFileAttributeViews in class FileSystem
  - getPath
```
public Path getPath(String first,
                    String... more)
```
    Converts a path string, or a sequence of more that when joined form a path string, to a Path.
    If more does not specify any elements then the value of the first parameter is the path string to convert. If more specifies one or more elements than each non-empty string, including first, is considered to be a sequence of name elements (see Path) and is joined to form a path string. The more will be joined using the name separator.
    Each name element will be String-joined to the other elements by this file system's first path separator. Naming conventions and allowed characters are as defined by the Azure Blob Storage service. The root component is interpreted as the container name and all name elements are interpreted as a part of the blob name. The character ':' is only allowed in the root component and must be the last character of the root component.
    
    Specified by:
    
    getPath in class FileSystem
    
    Parameters:
    
    first - the path string or initial part of the path string
    
    more - additional strings to be joined to form the path string
    
    Throws:
    
    InvalidPathException - if the path string cannot be converted.
  - getPathMatcher
```
public PathMatcher getPathMatcher(String s)
                           throws IllegalArgumentException,
                                  PatternSyntaxException
```
    Unsupported.
    
    Specified by:
    
    getPathMatcher in class FileSystem
    
    Parameters:
    
    s - the matcher
    
    Throws:
    
    UnsupportedOperationException - unsupported.
    
    IllegalArgumentException - never
    
    PatternSyntaxException - never
  - getUserPrincipalLookupService
```
public UserPrincipalLookupService getUserPrincipalLookupService()
```
    Unsupported.
    
    Specified by:
    
    getUserPrincipalLookupService in class FileSystem
    
    Throws:
    
    UnsupportedOperationException - unsupported.
  - newWatchService
```
public WatchService newWatchService()
                             throws IOException
```
    Unsupported.
    
    Specified by:
    
    newWatchService in class FileSystem
    
    Throws:
    
    UnsupportedOperationException - unsupported.
    
    IOException - Never thrown.
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object

Class AzureFileSystem

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

AZURE_STORAGE_SHARED_KEY_CREDENTIAL

AZURE_STORAGE_SAS_TOKEN_CREDENTIAL

AZURE_STORAGE_HTTP_LOG_DETAIL_LEVEL

AZURE_STORAGE_MAX_TRIES

AZURE_STORAGE_TRY_TIMEOUT

AZURE_STORAGE_RETRY_DELAY_IN_MS

AZURE_STORAGE_MAX_RETRY_DELAY_IN_MS

AZURE_STORAGE_RETRY_POLICY_TYPE

AZURE_STORAGE_SECONDARY_HOST

AZURE_STORAGE_UPLOAD_BLOCK_SIZE

AZURE_STORAGE_MAX_CONCURRENCY_PER_REQUEST

AZURE_STORAGE_PUT_BLOB_THRESHOLD

AZURE_STORAGE_DOWNLOAD_RESUME_RETRIES

AZURE_STORAGE_FILE_STORES

AZURE_STORAGE_SKIP_INITIAL_CONTAINER_CHECK

Method Detail

provider

close

isOpen

isReadOnly

getSeparator

getRootDirectories

getFileStores

supportedFileAttributeViews

getPath

getPathMatcher

getUserPrincipalLookupService

newWatchService

equals

hashCode