Class UrlFileObject
java.lang.Object
org.apache.commons.vfs2.provider.AbstractFileObject<UrlFileSystem>
org.apache.commons.vfs2.provider.url.UrlFileObject
- All Implemented Interfaces:
Closeable,AutoCloseable,Comparable<FileObject>,Iterable<FileObject>,FileObject
A
FileObject implementation backed by a URL.
TODO - Implement set lastModified and get/set attribute
TODO - Implement getOutputStream().
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Field Summary
Fields inherited from class org.apache.commons.vfs2.provider.AbstractFileObject
DEFAULT_BUFFER_SIZEFields inherited from interface org.apache.commons.vfs2.FileObject
EMPTY_ARRAY -
Constructor Summary
ConstructorsModifierConstructorDescriptionprotectedUrlFileObject(UrlFileSystem fileSystem, AbstractFileName fileName) Constructs a new instance. -
Method Summary
Modifier and TypeMethodDescriptionprotected URLCreates a URL from the given file name.protected voiddoAttach()Attaches this file object to its file resource.protected longReturns the size of the file content (in bytes).protected InputStreamdoGetInputStream(int bufferSize) Creates an input stream to read the file content from.protected longReturns the last modified time of this file.protected FileTypeDetermines the type of the file.protected String[]Lists the children of the file.Methods inherited from class org.apache.commons.vfs2.provider.AbstractFileObject
canRenameTo, childrenChanged, close, compareTo, copyFrom, createFile, createFolder, delete, delete, deleteAll, doCreateFileContent, doCreateFolder, doDelete, doDetach, doGetAttributes, doGetCertificates, doGetInputStream, doGetOutputStream, doGetRandomAccessContent, doIsExecutable, doIsHidden, doIsReadable, doIsSameFile, doIsSymbolicLink, doIsWriteable, doListChildrenResolved, doRemoveAttribute, doRename, doSetAttribute, doSetExecutable, doSetLastModifiedTime, doSetReadable, doSetWritable, endOutput, exists, finalize, findFiles, findFiles, getAbstractFileSystem, getChild, getChildren, getContent, getFileContentInfoFactory, getFileOperations, getFileSystem, getInputStream, getInputStream, getName, getOutputStream, getOutputStream, getParent, getPublicURIString, getRandomAccessContent, getType, getURL, handleChanged, handleCreate, handleDelete, holdObject, injectType, isAttached, isContentOpen, isExecutable, isFile, isFolder, isHidden, isReadable, isSameFile, isSymbolicLink, isWriteable, iterator, listFiles, moveTo, notifyAllStreamsClosed, onChange, onChildrenChanged, refresh, resolveFile, resolveFile, setExecutable, setReadable, setWritable, toStringMethods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, wait, wait, waitMethods inherited from interface org.apache.commons.vfs2.FileObject
getPath, getURIMethods inherited from interface java.lang.Iterable
forEach, spliterator
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Constructor Details
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UrlFileObject
Constructs a new instance.- Parameters:
fileSystem- the file system.fileName- the file name.
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Method Details
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createURL
Creates a URL from the given file name.- Parameters:
name- the file name.- Returns:
- a new URL.
- Throws:
IOException- if an I/O error occurs.
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doAttach
Attaches this file object to its file resource. This method is called before any of the doBlah() or onBlah() methods. Subclasses can use this method to perform lazy initialization.- Overrides:
doAttachin classAbstractFileObject<UrlFileSystem>- Throws:
Exception- if an error occurs.
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doGetContentSize
Returns the size of the file content (in bytes).- Specified by:
doGetContentSizein classAbstractFileObject<UrlFileSystem>- Returns:
- The size of the file in bytes.
- Throws:
Exception- if an error occurs.
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doGetInputStream
Creates an input stream to read the file content from.- Overrides:
doGetInputStreamin classAbstractFileObject<UrlFileSystem>- Parameters:
bufferSize- Buffer size hint.- Returns:
- An InputStream to read the file content.
- Throws:
Exception- if an error occurs.
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doGetLastModifiedTime
Returns the last modified time of this file.- Overrides:
doGetLastModifiedTimein classAbstractFileObject<UrlFileSystem>- Returns:
- The last modification time.
- Throws:
Exception- if an error occurs.
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doGetType
Determines the type of the file.- Specified by:
doGetTypein classAbstractFileObject<UrlFileSystem>- Returns:
- the type of the file.
- Throws:
Exception- if an error occurs.
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doListChildren
Lists the children of the file.- Specified by:
doListChildrenin classAbstractFileObject<UrlFileSystem>- Returns:
- a possible empty String array if the file is a directory or null or an exception if the file is not a directory or can't be read.
- Throws:
Exception- if an error occurs.
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