In either case, if this channel's file position is greater than the given size then it is set to that size. If this channel's file resides on a local storage device then when this method returns it is guaranteed that all changes made to the file since this channel was created, or since this method was last invoked, will have been written to that device.
This is useful for ensuring that critical information is not lost in the event of a system crash. Whether this parameter actually has any effect is dependent upon the underlying operating system and is therefore unspecified. Some operating systems, for example, maintain a last-access time as part of a file's metadata, and this time is updated whenever the file is read. Whether or not this is actually done is system-dependent and is therefore unspecified. This method is only guaranteed to force changes that were made to this channel's file via the methods defined in this class.
It may or may not force changes that were made by modifying the content of a mapped byte buffer obtained by invoking the map method. Invoking the force method of the mapped byte buffer will force changes made to the buffer's content to be written. An attempt is made to read up to count bytes starting at the given position in this channel's file and write them to the target channel. An invocation of this method may or may not transfer all of the requested bytes; whether or not it does so depends upon the natures and states of the channels.
Fewer than the requested number of bytes are transferred if this channel's file contains fewer than count bytes starting at the given position , or if the target channel is non-blocking and it has fewer than count bytes free in its output buffer. This method does not modify this channel's position. If the given position is greater than the file's current size then no bytes are transferred.
If the target channel has a position then bytes are written starting at that position and then the position is incremented by the number of bytes written. This method is potentially much more efficient than a simple loop that reads from this channel and writes to the target channel. Many operating systems can transfer bytes directly from the filesystem cache to the target channel without actually copying them.
An attempt is made to read up to count bytes from the source channel and write them to this channel's file starting at the given position. Fewer than the requested number of bytes will be transferred if the source channel has fewer than count bytes remaining, or if the source channel is non-blocking and has fewer than count bytes immediately available in its input buffer.
If the source channel has a position then bytes are read starting at that position and then the position is incremented by the number of bytes read. This method is potentially much more efficient than a simple loop that reads from the source channel and writes to this channel.
Many operating systems can transfer bytes directly from the source channel into the filesystem cache without actually copying them. This method works in the same manner as the read ByteBuffer method, except that bytes are read starting at the given file position rather than at the channel's current position. If the given position is greater than the file's current size then no bytes are read. This method works in the same manner as the write ByteBuffer method, except that bytes are written starting at the given file position rather than at the channel's current position.
If the given position is greater than the file's current size then the file will be grown to accommodate the new bytes; the values of any bytes between the previous end-of-file and the newly-written bytes are unspecified. Read-only: Any attempt to modify the resulting buffer will cause a ReadOnlyBufferException to be thrown.
Private: Changes made to the resulting buffer will not be propagated to the file and will not be visible to other programs that have mapped the same file; instead, they will cause private copies of the modified portions of the buffer to be created. The mapped byte buffer returned by this method will have a position of zero and a limit and capacity of size ; its mark will be undefined.
The buffer and the mapping that it represents will remain valid until the buffer itself is garbage-collected. A mapping, once established, is not dependent upon the file channel that was used to create it. Closing the channel, in particular, has no effect upon the validity of the mapping. Many of the details of memory-mapped files are inherently dependent upon the underlying operating system and are therefore unspecified. The behavior of this method when the requested region is not completely contained within this channel's file is unspecified.
Whether changes made to the content or size of the underlying file, by this program or another, are propagated to the buffer is unspecified. The rate at which changes to the buffer are propagated to the file is unspecified.
The bottom line seems to be to check out the VFS implementation and see if it does something for you, perhaps you can extend it for different protocols.
If it isn't appropriate, regarding your interface, you are probably going to want all remote file references to be Strings rather than File objects, and specifically a string representing a URI pointing to the remote location and telling you what protocol to use. I'm working at a problem very similar to yours, I couldn't find any open source solution so I'm trying to sketch a solution myself.
This is what I've come up with. If you would like to exchange by mail our views on the subject, just send me an e mail at my nickname gmail dot com.
Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 12 years, 6 months ago. Active 10 years, 10 months ago. Viewed 9k times. Tim Bornholtz Tim Bornholtz 1 1 silver badge 5 5 bronze badges. List applications available for data transfer Get application information by application ID List transfers by source user, destination user, or status Get a transfer request by resource ID.
The various Quickstart guides provide concrete working examples for you to start with, and the API reference describes the resources and functions that make up the Data Transfer API. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4. FileRequest Name Description Schema id optional. FolderContentItemModel Represents information about items stored in folder. FolderDetailsModel Represents a folder and all available attributes.
Describes after how many days old files in this folder will be cleaned up. Describes what kind of automated clean up is regularly performed on this folder. Describes what kind of delivery recipient notifications are used in this folder.
Describes what kind of new file notifications are used in this folder. The maximum amount of time, in days, that files in this folder are considered "new". Indicates whether the folder inherits its permissions from its parent folder. For webpost folders, text to display after a post to this folder. For webpost folders, the webpost completion and redirection setting. Describes after how many days empty subfolders in this folder will be cleaned up. Describes what kind of upload confirmation notifications are used in this folder.
FolderPatchModel Folder Update parameters. FolderRequest Name Description Schema id optional. GetFolderListRequest Get all folders query. GetGroupsListRequest Represents requred information in order to create a request to retreive list of groups. GetMailboxListRequest Type : object. IFolderPermission Represents folder permission object. MailboxModel Represents basic mailbox data required for all scenarios.
OrgInfoDto Organization information class. A Locale which is used for formatting dates and times in this organization. PackageDetailsModel Represents a package and all available attributes. PackageRequest Name Description Schema id optional. PagingInfoModel Information about paging for collection response. Recipient Name Description Schema identifier optional. RequestTokenError Authentication failed error. RequestTokenMfaError Authentication failed error.
RevokeTokenResponse Response for Revoke token operation. SimpleFolderModel Represents basic folder data required for all scenarios. SimplePackageModel Represents basic package data required for all scenarios. SimpleUserModel Simple user model for user lists. TokenAcquiredModel Represents successful token request response. TransferStatusDistribution Distribution of available statuses in collection. Number of transfers that have recently been completed but still are displayed as in progress.
TransferStatusModel Represents active transfer information. Information about the transfer status, such as an error message. UserDetailsModel Detailed user model. ID of user default folder; 0 indicates the home folder is the default folder. ID of the expiration policy configured for this user, or 0 for no policy. If set to 1, user must change their password on their next login. UserGroupModel Represents a group that a specific user is a member of, including the relationship that user has with the group.
UserGroupsRequest User list query. UserListRequest User list query. UserPatchModel Contains the user properties that should change. UserRequest Name Description Schema id optional. Folders, folder actions, folder contents, properties, and permissions. File and package management actions and properties. Get status and summaries for ongoing and recently completed transfers. Get information about a MOVEit organization. Swagger UI. The examples are live calls not simulated that run against your database.
In the cURL example shown below this is the -k option. Page number to display. Items per page in result collection; Default is Sort direction; Default is ascending. Server Error. Id required. File ID. No Content. ID of the file to update. Request body. ID of the file to copy. File copy request details.
Resource Not Found. Operation Conflicted. File name mask for filtering list of Folders. File path mask for filtering list of Folders. Folder ID. ID of the folder to update. ID of the folder to set access control. Access control. Field to sort by; Default is name. ID of the folder to change access control. ID of the folder to delete access control.
Entity type and id. Parent Folder ID. Name mask to search by. File upload comments. File contents. Hash of file. Type of hash provided sha-1, sha, sha, sha Invalid Request Parameters. File Name mask to search by. ID of the folder where new folder should be added. Folder Name mask to search by.
Parent folder ID. Folder ID to Get. Folder ID to Delete. Group ID. UserId required. User ID. Organization ID. ID of the destination mailbox. Package id. ID of the package to update. Type of authentication used. One-time password.
User password.
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