Constants (Apache Hadoop Aliyun OSS support 3.2.1 API)

java.lang.Object
- org.apache.hadoop.fs.aliyun.oss.Constants

```
public final class Constants
extends Object
```
ALL configuration constants for OSS filesystem.

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`ACCESS_KEY_ID`
`static String`	`ACCESS_KEY_SECRET`
`static String`	`BUFFER_DIR_KEY`
`static String`	`CANNED_ACL_DEFAULT`
`static String`	`CANNED_ACL_KEY`
`static String`	`CREDENTIALS_PROVIDER_KEY`
`static String`	`ENDPOINT_KEY`
`static int`	`ESTABLISH_TIMEOUT_DEFAULT`
`static String`	`ESTABLISH_TIMEOUT_KEY`
`static String`	`FS_OSS`
`static int`	`FS_OSS_BLOCK_SIZE_DEFAULT`
`static String`	`FS_OSS_BLOCK_SIZE_KEY`
`static int`	`KEEPALIVE_TIME_DEFAULT`
`static String`	`KEEPALIVE_TIME_KEY`
`static int`	`MAX_CONCURRENT_COPY_TASKS_PER_DIR_DEFAULT`
`static String`	`MAX_CONCURRENT_COPY_TASKS_PER_DIR_KEY`
`static int`	`MAX_COPY_TASKS_DEFAULT`
`static String`	`MAX_COPY_TASKS_KEY`
`static int`	`MAX_COPY_THREADS_DEFAULT`
`static String`	`MAX_COPY_THREADS_NUM_KEY`
`static int`	`MAX_ERROR_RETRIES_DEFAULT`
`static String`	`MAX_ERROR_RETRIES_KEY`
`static int`	`MAX_PAGING_KEYS_DEFAULT`
`static String`	`MAX_PAGING_KEYS_KEY`
`static int`	`MAX_TOTAL_TASKS_DEFAULT`
`static String`	`MAX_TOTAL_TASKS_KEY`
`static int`	`MAXIMUM_CONNECTIONS_DEFAULT`
`static String`	`MAXIMUM_CONNECTIONS_KEY`
`static long`	`MIN_MULTIPART_UPLOAD_THRESHOLD_DEFAULT`
`static String`	`MIN_MULTIPART_UPLOAD_THRESHOLD_KEY`
`static int`	`MULTIPART_DOWNLOAD_AHEAD_PART_MAX_NUM_DEFAULT`
`static String`	`MULTIPART_DOWNLOAD_AHEAD_PART_MAX_NUM_KEY`
`static long`	`MULTIPART_DOWNLOAD_SIZE_DEFAULT`
`static String`	`MULTIPART_DOWNLOAD_SIZE_KEY`
`static int`	`MULTIPART_DOWNLOAD_THREAD_NUMBER_DEFAULT`
`static String`	`MULTIPART_DOWNLOAD_THREAD_NUMBER_KEY`
`static int`	`MULTIPART_MIN_SIZE` The minimum multipart size which Aliyun OSS supports.
`static int`	`MULTIPART_UPLOAD_PART_NUM_LIMIT`
`static long`	`MULTIPART_UPLOAD_PART_SIZE_DEFAULT`
`static String`	`MULTIPART_UPLOAD_PART_SIZE_KEY`
`static int`	`OSS_DEFAULT_PORT`
`static String`	`PROXY_DOMAIN_KEY`
`static String`	`PROXY_HOST_KEY`
`static String`	`PROXY_PASSWORD_KEY`
`static String`	`PROXY_PORT_KEY`
`static String`	`PROXY_USERNAME_KEY`
`static String`	`PROXY_WORKSTATION_KEY`
`static boolean`	`SECURE_CONNECTIONS_DEFAULT`
`static String`	`SECURE_CONNECTIONS_KEY`
`static String`	`SECURITY_TOKEN`
`static String`	`SERVER_SIDE_ENCRYPTION_ALGORITHM_KEY`
`static int`	`SOCKET_TIMEOUT_DEFAULT`
`static String`	`SOCKET_TIMEOUT_KEY`
`static int`	`UPLOAD_ACTIVE_BLOCKS_DEFAULT`
`static String`	`UPLOAD_ACTIVE_BLOCKS_KEY`
`static String`	`USER_AGENT_PREFIX`
`static String`	`USER_AGENT_PREFIX_DEFAULT`

Method Summary
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - USER_AGENT_PREFIX
```
public static final String USER_AGENT_PREFIX
```
    See Also:
    
    Constant Field Values
  - USER_AGENT_PREFIX_DEFAULT
```
public static final String USER_AGENT_PREFIX_DEFAULT
```
  - CREDENTIALS_PROVIDER_KEY
```
public static final String CREDENTIALS_PROVIDER_KEY
```
    See Also:
    
    Constant Field Values
  - OSS_DEFAULT_PORT
```
public static final int OSS_DEFAULT_PORT
```
    See Also:
    
    Constant Field Values
  - ACCESS_KEY_ID
```
public static final String ACCESS_KEY_ID
```
    See Also:
    
    Constant Field Values
  - ACCESS_KEY_SECRET
```
public static final String ACCESS_KEY_SECRET
```
    See Also:
    
    Constant Field Values
  - SECURITY_TOKEN
```
public static final String SECURITY_TOKEN
```
    See Also:
    
    Constant Field Values
  - MAXIMUM_CONNECTIONS_KEY
```
public static final String MAXIMUM_CONNECTIONS_KEY
```
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    Constant Field Values
  - MAXIMUM_CONNECTIONS_DEFAULT
```
public static final int MAXIMUM_CONNECTIONS_DEFAULT
```
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    Constant Field Values
  - SECURE_CONNECTIONS_KEY
```
public static final String SECURE_CONNECTIONS_KEY
```
    See Also:
    
    Constant Field Values
  - SECURE_CONNECTIONS_DEFAULT
```
public static final boolean SECURE_CONNECTIONS_DEFAULT
```
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    Constant Field Values
  - ENDPOINT_KEY
```
public static final String ENDPOINT_KEY
```
    See Also:
    
    Constant Field Values
  - PROXY_HOST_KEY
```
public static final String PROXY_HOST_KEY
```
    See Also:
    
    Constant Field Values
  - PROXY_PORT_KEY
```
public static final String PROXY_PORT_KEY
```
    See Also:
    
    Constant Field Values
  - PROXY_USERNAME_KEY
```
public static final String PROXY_USERNAME_KEY
```
    See Also:
    
    Constant Field Values
  - PROXY_PASSWORD_KEY
```
public static final String PROXY_PASSWORD_KEY
```
    See Also:
    
    Constant Field Values
  - PROXY_DOMAIN_KEY
```
public static final String PROXY_DOMAIN_KEY
```
    See Also:
    
    Constant Field Values
  - PROXY_WORKSTATION_KEY
```
public static final String PROXY_WORKSTATION_KEY
```
    See Also:
    
    Constant Field Values
  - MAX_ERROR_RETRIES_KEY
```
public static final String MAX_ERROR_RETRIES_KEY
```
    See Also:
    
    Constant Field Values
  - MAX_ERROR_RETRIES_DEFAULT
```
public static final int MAX_ERROR_RETRIES_DEFAULT
```
    See Also:
    
    Constant Field Values
  - ESTABLISH_TIMEOUT_KEY
```
public static final String ESTABLISH_TIMEOUT_KEY
```
    See Also:
    
    Constant Field Values
  - ESTABLISH_TIMEOUT_DEFAULT
```
public static final int ESTABLISH_TIMEOUT_DEFAULT
```
    See Also:
    
    Constant Field Values
  - SOCKET_TIMEOUT_KEY
```
public static final String SOCKET_TIMEOUT_KEY
```
    See Also:
    
    Constant Field Values
  - SOCKET_TIMEOUT_DEFAULT
```
public static final int SOCKET_TIMEOUT_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MAX_PAGING_KEYS_KEY
```
public static final String MAX_PAGING_KEYS_KEY
```
    See Also:
    
    Constant Field Values
  - MAX_PAGING_KEYS_DEFAULT
```
public static final int MAX_PAGING_KEYS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MULTIPART_UPLOAD_PART_SIZE_KEY
```
public static final String MULTIPART_UPLOAD_PART_SIZE_KEY
```
    See Also:
    
    Constant Field Values
  - MULTIPART_UPLOAD_PART_SIZE_DEFAULT
```
public static final long MULTIPART_UPLOAD_PART_SIZE_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MULTIPART_MIN_SIZE
```
public static final int MULTIPART_MIN_SIZE
```
    The minimum multipart size which Aliyun OSS supports.
    
    See Also:
    
    Constant Field Values
  - MULTIPART_UPLOAD_PART_NUM_LIMIT
```
public static final int MULTIPART_UPLOAD_PART_NUM_LIMIT
```
    See Also:
    
    Constant Field Values
  - MIN_MULTIPART_UPLOAD_THRESHOLD_KEY
```
public static final String MIN_MULTIPART_UPLOAD_THRESHOLD_KEY
```
    See Also:
    
    Constant Field Values
  - MIN_MULTIPART_UPLOAD_THRESHOLD_DEFAULT
```
public static final long MIN_MULTIPART_UPLOAD_THRESHOLD_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MULTIPART_DOWNLOAD_SIZE_KEY
```
public static final String MULTIPART_DOWNLOAD_SIZE_KEY
```
    See Also:
    
    Constant Field Values
  - MULTIPART_DOWNLOAD_SIZE_DEFAULT
```
public static final long MULTIPART_DOWNLOAD_SIZE_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MULTIPART_DOWNLOAD_THREAD_NUMBER_KEY
```
public static final String MULTIPART_DOWNLOAD_THREAD_NUMBER_KEY
```
    See Also:
    
    Constant Field Values
  - MULTIPART_DOWNLOAD_THREAD_NUMBER_DEFAULT
```
public static final int MULTIPART_DOWNLOAD_THREAD_NUMBER_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MAX_TOTAL_TASKS_KEY
```
public static final String MAX_TOTAL_TASKS_KEY
```
    See Also:
    
    Constant Field Values
  - MAX_TOTAL_TASKS_DEFAULT
```
public static final int MAX_TOTAL_TASKS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MULTIPART_DOWNLOAD_AHEAD_PART_MAX_NUM_KEY
```
public static final String MULTIPART_DOWNLOAD_AHEAD_PART_MAX_NUM_KEY
```
    See Also:
    
    Constant Field Values
  - MULTIPART_DOWNLOAD_AHEAD_PART_MAX_NUM_DEFAULT
```
public static final int MULTIPART_DOWNLOAD_AHEAD_PART_MAX_NUM_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MAX_COPY_TASKS_KEY
```
public static final String MAX_COPY_TASKS_KEY
```
    See Also:
    
    Constant Field Values
  - MAX_COPY_TASKS_DEFAULT
```
public static final int MAX_COPY_TASKS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MAX_COPY_THREADS_NUM_KEY
```
public static final String MAX_COPY_THREADS_NUM_KEY
```
    See Also:
    
    Constant Field Values
  - MAX_COPY_THREADS_DEFAULT
```
public static final int MAX_COPY_THREADS_DEFAULT
```
    See Also:
    
    Constant Field Values
  - MAX_CONCURRENT_COPY_TASKS_PER_DIR_KEY
```
public static final String MAX_CONCURRENT_COPY_TASKS_PER_DIR_KEY
```
    See Also:
    
    Constant Field Values
  - MAX_CONCURRENT_COPY_TASKS_PER_DIR_DEFAULT
```
public static final int MAX_CONCURRENT_COPY_TASKS_PER_DIR_DEFAULT
```
    See Also:
    
    Constant Field Values
  - BUFFER_DIR_KEY
```
public static final String BUFFER_DIR_KEY
```
    See Also:
    
    Constant Field Values
  - CANNED_ACL_KEY
```
public static final String CANNED_ACL_KEY
```
    See Also:
    
    Constant Field Values
  - CANNED_ACL_DEFAULT
```
public static final String CANNED_ACL_DEFAULT
```
    See Also:
    
    Constant Field Values
  - SERVER_SIDE_ENCRYPTION_ALGORITHM_KEY
```
public static final String SERVER_SIDE_ENCRYPTION_ALGORITHM_KEY
```
    See Also:
    
    Constant Field Values
  - FS_OSS_BLOCK_SIZE_KEY
```
public static final String FS_OSS_BLOCK_SIZE_KEY
```
    See Also:
    
    Constant Field Values
  - FS_OSS_BLOCK_SIZE_DEFAULT
```
public static final int FS_OSS_BLOCK_SIZE_DEFAULT
```
    See Also:
    
    Constant Field Values
  - FS_OSS
```
public static final String FS_OSS
```
    See Also:
    
    Constant Field Values
  - KEEPALIVE_TIME_KEY
```
public static final String KEEPALIVE_TIME_KEY
```
    See Also:
    
    Constant Field Values
  - KEEPALIVE_TIME_DEFAULT
```
public static final int KEEPALIVE_TIME_DEFAULT
```
    See Also:
    
    Constant Field Values
  - UPLOAD_ACTIVE_BLOCKS_KEY
```
public static final String UPLOAD_ACTIVE_BLOCKS_KEY
```
    See Also:
    
    Constant Field Values
  - UPLOAD_ACTIVE_BLOCKS_DEFAULT
```
public static final int UPLOAD_ACTIVE_BLOCKS_DEFAULT
```
    See Also:
    
    Constant Field Values

Class Constants

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

USER_AGENT_PREFIX

USER_AGENT_PREFIX_DEFAULT

CREDENTIALS_PROVIDER_KEY

OSS_DEFAULT_PORT

ACCESS_KEY_ID

ACCESS_KEY_SECRET

SECURITY_TOKEN

MAXIMUM_CONNECTIONS_KEY

MAXIMUM_CONNECTIONS_DEFAULT

SECURE_CONNECTIONS_KEY

SECURE_CONNECTIONS_DEFAULT

ENDPOINT_KEY

PROXY_HOST_KEY

PROXY_PORT_KEY

PROXY_USERNAME_KEY

PROXY_PASSWORD_KEY

PROXY_DOMAIN_KEY

PROXY_WORKSTATION_KEY

MAX_ERROR_RETRIES_KEY

MAX_ERROR_RETRIES_DEFAULT

ESTABLISH_TIMEOUT_KEY

ESTABLISH_TIMEOUT_DEFAULT

SOCKET_TIMEOUT_KEY

SOCKET_TIMEOUT_DEFAULT

MAX_PAGING_KEYS_KEY

MAX_PAGING_KEYS_DEFAULT

MULTIPART_UPLOAD_PART_SIZE_KEY

MULTIPART_UPLOAD_PART_SIZE_DEFAULT

MULTIPART_MIN_SIZE

MULTIPART_UPLOAD_PART_NUM_LIMIT

MIN_MULTIPART_UPLOAD_THRESHOLD_KEY

MIN_MULTIPART_UPLOAD_THRESHOLD_DEFAULT

MULTIPART_DOWNLOAD_SIZE_KEY

MULTIPART_DOWNLOAD_SIZE_DEFAULT

MULTIPART_DOWNLOAD_THREAD_NUMBER_KEY

MULTIPART_DOWNLOAD_THREAD_NUMBER_DEFAULT

MAX_TOTAL_TASKS_KEY

MAX_TOTAL_TASKS_DEFAULT

MULTIPART_DOWNLOAD_AHEAD_PART_MAX_NUM_KEY

MULTIPART_DOWNLOAD_AHEAD_PART_MAX_NUM_DEFAULT

MAX_COPY_TASKS_KEY

MAX_COPY_TASKS_DEFAULT

MAX_COPY_THREADS_NUM_KEY

MAX_COPY_THREADS_DEFAULT

MAX_CONCURRENT_COPY_TASKS_PER_DIR_KEY

MAX_CONCURRENT_COPY_TASKS_PER_DIR_DEFAULT

BUFFER_DIR_KEY

CANNED_ACL_KEY

CANNED_ACL_DEFAULT

SERVER_SIDE_ENCRYPTION_ALGORITHM_KEY

FS_OSS_BLOCK_SIZE_KEY

FS_OSS_BLOCK_SIZE_DEFAULT

FS_OSS

KEEPALIVE_TIME_KEY

KEEPALIVE_TIME_DEFAULT

UPLOAD_ACTIVE_BLOCKS_KEY

UPLOAD_ACTIVE_BLOCKS_DEFAULT