ftpfs

Class FtpFileObject

java.lang.Object

org.das2.util.filesystem.FileObject

org.das2.util.filesystem.WebFileObject

ftpfs.FtpFileObject

public class FtpFileObject
extends WebFileObject

Field Summary

Fields inherited from class org.das2.util.filesystem.WebFileObject

METADATA_FRESH_TIMEOUT_MS

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	FtpFileObject(WebFileSystem wfs, java.lang.String pathname, java.util.Date modifiedDate)

Method Summary

Modifier and Type	Method and Description
boolean	exists() returns true if the file exists.
<T> T	getCapability(java.lang.Class<T> clazz) returns extra capabilities, such as writing to the filesystem.
java.io.InputStream	getInputStream(ProgressMonitor monitor) get the input stream, checking for 0 for the lastModified indicating the date was never loaded.
java.io.OutputStream	getOutputStream(boolean append) returns an output stream that writes to a local file in the file cache, then sends over the result when it is closed.
long	getSize() return the fileObject size in bytes.

Methods inherited from class org.das2.util.filesystem.WebFileObject

canRead, getChannel, getChildren, getFile, getLocalFile, getNameExt, getParent, isData, isFolder, isLocal, isReadOnly, isRoot, lastModified, maybeLoadMetadata, removeLocalFile, setLastModified, setSize, toString

Methods inherited from class org.das2.util.filesystem.FileObject

getChannel, getFile, getInputStream

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FtpFileObject

protected FtpFileObject(WebFileSystem wfs,
                        java.lang.String pathname,
                        java.util.Date modifiedDate)

Method Detail

getSize

public long getSize()

Description copied from class: WebFileObject

return the fileObject size in bytes. This may contact the server to get the size, and this caches the size.

Overrides:

getSize in class WebFileObject

Returns:

the size in bytes of the file, and -1 if the size is unknown.

exists

public boolean exists()

Description copied from class: FileObject

returns true if the file exists. This may have the side effect of downloading the file.

Overrides:

exists in class WebFileObject

Returns:

true if the file exists

getCapability

public <T> T getCapability(java.lang.Class<T> clazz)

Description copied from class: FileObject

returns extra capabilities, such as writing to the filesystem.

Overrides:

getCapability in class FileObject

Returns:

getOutputStream

public java.io.OutputStream getOutputStream(boolean append)
                                     throws java.io.IOException

returns an output stream that writes to a local file in the file cache, then sends over the result when it is closed. So this will not work with applets, but this is no big deal. Note that the file MUST BE CLOSED. This is where it is uploaded to the FTP server.

Parameters:

append - Append to the remote file. We append to the local copy before uploading it.

Returns:

Throws:

java.io.IOException

getInputStream

public java.io.InputStream getInputStream(ProgressMonitor monitor)
                                   throws java.io.FileNotFoundException,
                                          java.io.IOException

get the input stream, checking for 0 for the lastModified indicating the date was never loaded.

Overrides:

getInputStream in class WebFileObject

Parameters:

monitor -

Returns:

Throws:

java.io.FileNotFoundException

java.io.IOException