本文整理汇总了Java中org.apache.hadoop.fs.Options.CreateOpts.setOpt方法的典型用法代码示例。如果您正苦于以下问题：Java CreateOpts.setOpt方法的具体用法？Java CreateOpts.setOpt怎么用？Java CreateOpts.setOpt使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.fs.Options.CreateOpts的用法示例。
在下文中一共展示了CreateOpts.setOpt方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: create
import org.apache.hadoop.fs.Options.CreateOpts; //导入方法依赖的package包/类
/**
* Create or overwrite file on indicated path and returns an output stream for
* writing into the file.
*
* @param f the file name to open
* @param createFlag gives the semantics of create; see {@link CreateFlag}
* @param opts file creation options; see {@link Options.CreateOpts}.
* <ul>
* <li>Progress - to report progress on the operation - default null
* <li>Permission - umask is applied against permission: default is
* FsPermissions:getDefault()
*
* <li>CreateParent - create missing parent path; default is to not
* to create parents
* <li>The defaults for the following are SS defaults of the file
* server implementing the target path. Not all parameters make sense
* for all kinds of file system - eg. localFS ignores Blocksize,
* replication, checksum
* <ul>
* <li>BufferSize - buffersize used in FSDataOutputStream
* <li>Blocksize - block size for file blocks
* <li>ReplicationFactor - replication for blocks
* <li>ChecksumParam - Checksum parameters. server default is used
* if not specified.
* </ul>
* </ul>
*
* @return {@link FSDataOutputStream} for created file
*
* @throws AccessControlException If access is denied
* @throws FileAlreadyExistsException If file <code>f</code> already exists
* @throws FileNotFoundException If parent of <code>f</code> does not exist
* and <code>createParent</code> is false
* @throws ParentNotDirectoryException If parent of <code>f</code> is not a
* directory.
* @throws UnsupportedFileSystemException If file system for <code>f</code> is
* not supported
* @throws IOException If an I/O error occurred
*
* Exceptions applicable to file systems accessed over RPC:
* @throws RpcClientException If an exception occurred in the RPC client
* @throws RpcServerException If an exception occurred in the RPC server
* @throws UnexpectedServerException If server implementation throws
* undeclared exception to RPC server
*
* RuntimeExceptions:
* @throws InvalidPathException If path <code>f</code> is not valid
*/
public FSDataOutputStream create(final Path f,
final EnumSet<CreateFlag> createFlag, Options.CreateOpts... opts)
throws AccessControlException, FileAlreadyExistsException,
FileNotFoundException, ParentNotDirectoryException,
UnsupportedFileSystemException, IOException {
Path absF = fixRelativePart(f);
// If one of the options is a permission, extract it & apply umask
// If not, add a default Perms and apply umask;
// AbstractFileSystem#create
CreateOpts.Perms permOpt = CreateOpts.getOpt(CreateOpts.Perms.class, opts);
FsPermission permission = (permOpt != null) ? permOpt.getValue() :
FILE_DEFAULT_PERM;
permission = permission.applyUMask(umask);
final CreateOpts[] updatedOpts =
CreateOpts.setOpt(CreateOpts.perms(permission), opts);
return new FSLinkResolver<FSDataOutputStream>() {
@Override
public FSDataOutputStream next(final AbstractFileSystem fs, final Path p)
throws IOException {
return fs.create(p, createFlag, updatedOpts);
}
}.resolve(this, absF);
}
示例2: create
import org.apache.hadoop.fs.Options.CreateOpts; //导入方法依赖的package包/类
/**
* Create or overwrite file on indicated path and returns an output stream for
* writing into the file.
*
* @param f the file name to open
* @param createFlag gives the semantics of create; see {@link CreateFlag}
* @param opts file creation options; see {@link Options.CreateOpts}.
* <ul>
* <li>Progress - to report progress on the operation - default null
* <li>Permission - umask is applied against permisssion: default is
* FsPermissions:getDefault()
*
* <li>CreateParent - create missing parent path; default is to not
* to create parents
* <li>The defaults for the following are SS defaults of the file
* server implementing the target path. Not all parameters make sense
* for all kinds of file system - eg. localFS ignores Blocksize,
* replication, checksum
* <ul>
* <li>BufferSize - buffersize used in FSDataOutputStream
* <li>Blocksize - block size for file blocks
* <li>ReplicationFactor - replication for blocks
* <li>ChecksumParam - Checksum parameters. server default is used
* if not specified.
* </ul>
* </ul>
*
* @return {@link FSDataOutputStream} for created file
*
* @throws AccessControlException If access is denied
* @throws FileAlreadyExistsException If file <code>f</code> already exists
* @throws FileNotFoundException If parent of <code>f</code> does not exist
* and <code>createParent</code> is false
* @throws ParentNotDirectoryException If parent of <code>f</code> is not a
* directory.
* @throws UnsupportedFileSystemException If file system for <code>f</code> is
* not supported
* @throws IOException If an I/O error occurred
*
* Exceptions applicable to file systems accessed over RPC:
* @throws RpcClientException If an exception occurred in the RPC client
* @throws RpcServerException If an exception occurred in the RPC server
* @throws UnexpectedServerException If server implementation throws
* undeclared exception to RPC server
*
* RuntimeExceptions:
* @throws InvalidPathException If path <code>f</code> is not valid
*/
public FSDataOutputStream create(final Path f,
final EnumSet<CreateFlag> createFlag, Options.CreateOpts... opts)
throws AccessControlException, FileAlreadyExistsException,
FileNotFoundException, ParentNotDirectoryException,
UnsupportedFileSystemException, IOException {
Path absF = fixRelativePart(f);
// If one of the options is a permission, extract it & apply umask
// If not, add a default Perms and apply umask;
// AbstractFileSystem#create
CreateOpts.Perms permOpt = CreateOpts.getOpt(CreateOpts.Perms.class, opts);
FsPermission permission = (permOpt != null) ? permOpt.getValue() :
FILE_DEFAULT_PERM;
permission = permission.applyUMask(umask);
final CreateOpts[] updatedOpts =
CreateOpts.setOpt(CreateOpts.perms(permission), opts);
return new FSLinkResolver<FSDataOutputStream>() {
@Override
public FSDataOutputStream next(final AbstractFileSystem fs, final Path p)
throws IOException {
return fs.create(p, createFlag, updatedOpts);
}
}.resolve(this, absF);
}
示例3: create
import org.apache.hadoop.fs.Options.CreateOpts; //导入方法依赖的package包/类
/**
* Create or overwrite file on indicated path and returns an output stream for
* writing into the file.
*
* @param f the file name to open
* @param createFlag gives the semantics of create; see {@link CreateFlag}
* @param opts file creation options; see {@link Options.CreateOpts}.
* <ul>
* <li>Progress - to report progress on the operation - default null
* <li>Permission - umask is applied against permisssion: default is
* FsPermissions:getDefault()
*
* <li>CreateParent - create missing parent path; default is to not
* to create parents
* <li>The defaults for the following are SS defaults of the file
* server implementing the target path. Not all parameters make sense
* for all kinds of file system - eg. localFS ignores Blocksize,
* replication, checksum
* <ul>
* <li>BufferSize - buffersize used in FSDataOutputStream
* <li>Blocksize - block size for file blocks
* <li>ReplicationFactor - replication for blocks
* <li>ChecksumParam - Checksum parameters. server default is used
* if not specified.
* </ul>
* </ul>
*
* @return {@link FSDataOutputStream} for created file
*
* @throws AccessControlException If access is denied
* @throws FileAlreadyExistsException If file <code>f</code> already exists
* @throws FileNotFoundException If parent of <code>f</code> does not exist
* and <code>createParent</code> is false
* @throws ParentNotDirectoryException If parent of <code>f</code> is not a
* directory.
* @throws UnsupportedFileSystemException If file system for <code>f</code> is
* not supported
* @throws IOException If an I/O error occurred
*
* Exceptions applicable to file systems accessed over RPC:
* @throws RpcClientException If an exception occurred in the RPC client
* @throws RpcServerException If an exception occurred in the RPC server
* @throws UnexpectedServerException If server implementation throws
* undeclared exception to RPC server
*
* RuntimeExceptions:
* @throws InvalidPathException If path <code>f</code> is not valid
*/
public FSDataOutputStream create(final Path f,
final EnumSet<CreateFlag> createFlag, Options.CreateOpts... opts)
throws AccessControlException, FileAlreadyExistsException,
FileNotFoundException, ParentNotDirectoryException,
UnsupportedFileSystemException, IOException {
Path absF = fixRelativePart(f);
// If one of the options is a permission, extract it & apply umask
// If not, add a default Perms and apply umask;
// AbstractFileSystem#create
CreateOpts.Perms permOpt =
(CreateOpts.Perms) CreateOpts.getOpt(CreateOpts.Perms.class, opts);
FsPermission permission = (permOpt != null) ? permOpt.getValue() :
FILE_DEFAULT_PERM;
permission = permission.applyUMask(umask);
final CreateOpts[] updatedOpts =
CreateOpts.setOpt(CreateOpts.perms(permission), opts);
return new FSLinkResolver<FSDataOutputStream>() {
@Override
public FSDataOutputStream next(final AbstractFileSystem fs, final Path p)
throws IOException {
return fs.create(p, createFlag, updatedOpts);
}
}.resolve(this, absF);
}