Class UrlFileObject
- java.lang.Object
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- org.apache.commons.vfs2.provider.AbstractFileObject<UrlFileSystem>
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- org.apache.commons.vfs2.provider.url.UrlFileObject
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,java.lang.Comparable<FileObject>
,java.lang.Iterable<FileObject>
,FileObject
public class UrlFileObject extends AbstractFileObject<UrlFileSystem>
AFileObject
implementation backed by aURL
.TODO - Implement set lastModified and get/set attribute
TODO - Implement getOutputStream().
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Constructor Summary
Constructors Modifier Constructor Description protected
UrlFileObject(UrlFileSystem fs, AbstractFileName fileName)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected java.net.URL
createURL(FileName name)
protected void
doAttach()
Attaches this file object to its file resource.protected long
doGetContentSize()
Returns the size of the file content (in bytes).protected java.io.InputStream
doGetInputStream()
Creates an input stream to read the file content from.protected long
doGetLastModifiedTime()
Returns the last modified time of this file.protected FileType
doGetType()
Determines the type of the file.protected java.lang.String[]
doListChildren()
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, doGetOutputStream, doGetRandomAccessContent, doIsExecutable, doIsHidden, doIsReadable, doIsSameFile, doIsWriteable, doListChildrenResolved, doRemoveAttribute, doRename, doSetAttribute, doSetExecutable, doSetLastModifiedTime, doSetReadable, doSetWritable, endOutput, exists, finalize, findFiles, findFiles, getAbstractFileSystem, getChild, getChildren, getContent, getFileContentInfoFactory, getFileOperations, getFileSystem, getInputStream, getName, getOutputStream, getOutputStream, getParent, getPublicURIString, getRandomAccessContent, getType, getURL, handleChanged, handleCreate, handleDelete, holdObject, injectType, isAttached, isContentOpen, isExecutable, isFile, isFolder, isHidden, isReadable, isSameFile, isWriteable, iterator, listFiles, moveTo, notifyAllStreamsClosed, onChange, onChildrenChanged, refresh, resolveFile, resolveFile, setExecutable, setReadable, setWritable, toString
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Constructor Detail
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UrlFileObject
protected UrlFileObject(UrlFileSystem fs, AbstractFileName fileName)
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Method Detail
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doAttach
protected void doAttach() throws java.lang.Exception
Attaches this file object to its file resource. This method is called before any of the doBlah() or onBlah() methods. Sub-classes can use this method to perform lazy initialisation.- Overrides:
doAttach
in classAbstractFileObject<UrlFileSystem>
- Throws:
java.lang.Exception
- if an error occurs.
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createURL
protected java.net.URL createURL(FileName name) throws java.net.MalformedURLException, FileSystemException, org.apache.commons.httpclient.URIException
- Throws:
java.net.MalformedURLException
FileSystemException
org.apache.commons.httpclient.URIException
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doGetType
protected FileType doGetType() throws java.lang.Exception
Determines the type of the file.- Specified by:
doGetType
in classAbstractFileObject<UrlFileSystem>
- Returns:
- the type of the file.
- Throws:
java.lang.Exception
- if an error occurs.
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doGetContentSize
protected long doGetContentSize() throws java.lang.Exception
Returns the size of the file content (in bytes).- Specified by:
doGetContentSize
in classAbstractFileObject<UrlFileSystem>
- Returns:
- The size of the file in bytes.
- Throws:
java.lang.Exception
- if an error occurs.
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doGetLastModifiedTime
protected long doGetLastModifiedTime() throws java.lang.Exception
Returns the last modified time of this file.- Overrides:
doGetLastModifiedTime
in classAbstractFileObject<UrlFileSystem>
- Returns:
- The last modification time.
- Throws:
java.lang.Exception
- if an error occurs.
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doListChildren
protected java.lang.String[] doListChildren() throws java.lang.Exception
Lists the children of the file.- Specified by:
doListChildren
in 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:
java.lang.Exception
- if an error occurs.
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doGetInputStream
protected java.io.InputStream doGetInputStream() throws java.lang.Exception
Creates an input stream to read the file content from.- Specified by:
doGetInputStream
in classAbstractFileObject<UrlFileSystem>
- Returns:
- An InputStream to read the file content.
- Throws:
java.lang.Exception
- if an error occurs.
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