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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.2) E13403-10 |
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java.lang.Object
oracle.ide.net.URLFileSystemHelper
oracle.ide.net.IdeURLFileSystemHelper
oracle.jdeveloper.webapp.net.DynamicStringImageURLFileSystemHelper
public class DynamicStringImageURLFileSystemHelper
Format is ide.res.dynamic.image://text[?params]. Avialable parameters: font: see Font.decode(String)
, bg: see Color.decode(String)
, fg: see Color.decode(String)
, padding: image padding around text boundaries. In the high-contrast mode specified foreground and background colors are ignored and WindowText and Window system colors are used instead.
Field Summary | |
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static java.lang.String |
BACKGROUND_COLOR_PROPERTY |
static java.lang.String |
FONT_PROPERTY |
static java.lang.String |
FOREGROUND_COLOR_PROPERTY |
static java.lang.String |
HOST |
static java.lang.String |
PROTOCOL |
static java.lang.String |
TEXT_PADDING_PROPERTY |
static java.lang.String |
URL_PREFIX |
Constructor Summary | |
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DynamicStringImageURLFileSystemHelper() |
Method Summary | |
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boolean |
canCreate(java.net.URL url) Tests whether the application can create the resource at the specified URL . |
boolean |
canDelete(java.net.URL url) Tests whether the application can delete the resource at the specified URL . |
java.net.URL |
canonicalize(java.net.URL url) Returns a canonical form of the URL , if one is available. |
boolean |
canRead(java.net.URL url) Tests whether the application can read the resource at the specified URL . |
boolean |
canWrite(java.net.URL url) Tests whether the application can modify the resource at the specified URL . |
java.net.URL |
convertSuffix(java.net.URL url, java.lang.String oldSuffix, java.lang.String newSuffix) Takes the given URL and checks if its Object.toString() representation ends with the specified oldSuffix . |
java.io.Reader |
createReader(java.net.URL url, java.lang.String encoding) Creates a Reader on the specified URL with the specified encoding. |
void |
delete(java.net.URL url) Deletes the content pointed to by the specified URL . |
java.net.URL |
ensureSuffix(java.net.URL url, java.lang.String suffix) This method ensures that the specified URL ends with the specified suffix . |
boolean |
equals(java.net.URL url1, java.net.URL url2) Compares the specified URL objects to determine whether they point to the same resource. |
boolean |
exists(java.net.URL url) Returns true if the specified URL points to a resource that currently exists; returns false otherwise. |
java.net.URL |
getBaseParent(java.net.URL url, java.lang.String relativeSpec) This method gets the base directory fully containing the relative path. |
javax.swing.Icon |
getDefaultIcon(java.net.URL url) Returns one of the built-in JFileChooser icons for a directory or file, depending on the type of resource represented by the URL . |
java.lang.String |
getFileName(java.net.URL url) Returns the name of the file contained by the URL , not including any protocol, hostname authentication, directory path, anchor, or query. |
static java.awt.image.BufferedImage |
getImage(java.lang.String text, java.lang.String params) |
protected java.lang.String |
getImageText(java.net.URL url) |
long |
getLength(java.net.URL url) Returns the number of bytes contained in the resource that the specified URL points to. |
java.lang.String |
getName(java.net.URL url) Returns the name of the file contained by the URL , not including any protocol, hostname authentication, directory path, anchor, or query. |
protected static java.lang.String |
getParam(java.lang.String params, java.lang.String paramName) |
java.net.URL |
getParent(java.net.URL url) Returns the URL representing the parent directory of the specified URL . |
java.lang.String |
getPath(java.net.URL url) Returns the path part of the URL . |
java.lang.String |
getPathNoExt(java.net.URL url) Returns the path part of the URL without the last file extension. |
java.lang.String |
getPlatformPathName(java.net.URL url) Returns the platform-dependent String representation of the URL ; the returned string should be considered acceptable for users to read. |
protected java.net.URL |
getRealURL(java.net.URL url) Returns the real URL encoded in the specified url . |
java.lang.String |
getSuffix(java.net.URL url) If a dot ('.') occurs in the path portion of the URL , then all of the text starting at the last dot is returned, including the dot. |
int |
hashCode(java.net.URL url) Computes a hash code for the specified URL object consistent with URLFileSystemHelper.equals(java.net.URL, java.net.URL) . |
boolean |
hasSuffix(java.net.URL url, java.lang.String suffix) Returns true if the path part of the URL ends with the given suffix String. |
boolean |
isBaseURLFor(java.net.URL url1, java.net.URL url2) Returns true if url1 represents a a directory and url2 points to a location within url1 's directory tree. |
boolean |
isDirectory(java.net.URL url) Tests whether the location indicated by the URL is a directory. |
boolean |
isDirectoryPath(java.net.URL url) Tests whether the location indicated by the URL represents a directory path. |
boolean |
isHidden(java.net.URL url) Tests whether the resource indiciated by the URL is a hidden file. |
boolean |
isReadOnly(java.net.URL url) Returns true if the resource is read-only. |
boolean |
isRegularFile(java.net.URL url) Tests whether the resource indiciated by the URL is a regular file. |
boolean |
isValid(java.net.URL url) Tests whether the specified URL is valid. |
long |
lastModified(java.net.URL url) Returns the last modification time (timestamp) of the resource indicated by the specified URL in milliseconds since 00:00:00 GMT, Jan 1, 1970. |
java.net.URL[] |
list(java.net.URL url) Returns an array of URL s naming files and directories in the directory indicated by the URL . |
java.net.URL[] |
list(java.net.URL url, URLFilter filter) Returns an array of URL s naming files and directories in the directory indicated by the URL ; the specified URLFilter is applied to determine which URL s will be returned. |
boolean |
mkdir(java.net.URL url) Creates the directory indicated by the URL . |
boolean |
mkdirs(java.net.URL url) Creates the directory indicated by the specified URL including any necessary but nonexistent parent directories. |
java.io.InputStream |
openInputStream(java.net.URL url) Opens an InputStream on the specified URL . |
java.io.OutputStream |
openOutputStream(java.net.URL url) Opens an OutputStream on the URL . |
void |
rename(java.net.URL oldURL, java.net.URL newURL) Renames the resource indicated by the first URL to the name indicated by the second URL . |
boolean |
setLastModified(java.net.URL url, long time) Sets the last-modified timestamp of the resource indicated by the URL to the time specified by time . |
boolean |
setReadOnly(java.net.URL url, boolean readOnly) Sets the read-only status of the resource indicated by the URL according to the specified readOnly flag. |
java.lang.String |
toDisplayString(java.net.URL url) Returns a displayable form of the complete URL . |
java.lang.String |
toRelativeSpec(java.net.URL url, java.net.URL base) This method attempts all possible ways of deriving a relative URI reference as described in RFC 2396 using the url parameter as the URL whose relative URI reference is to be determined and the base parameter as the URL that serves as the base document for the url pararmeter. |
java.lang.String |
toRelativeSpec(java.net.URL url, java.net.URL base, boolean mustConsumeBase) Variant of URLFileSystemHelper.toRelativeSpec(URL, URL) that has a flag that indicates whether the base URL should be fully consumed in the process of calculating the relative spec. |
Methods inherited from class oracle.ide.net.IdeURLFileSystemHelper |
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isLocal |
Methods inherited from class oracle.ide.net.URLFileSystemHelper |
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addURLFileSystemListener, appendRelativePath, areEqual, areEqualPathElems, code, createTempFile, getSystemDisplayName, getSystemIcon, getTempDirectory, haveSameAuthority, haveSameHost, haveSamePath, haveSamePort, haveSameProtocol, haveSameQuery, haveSameRef, haveSameUserInfo, list, listRoots, ls, ls, lsCached, lsCached, removeURLFileSystemListener, toEncodedString, toEncodedString, verifyList |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final java.lang.String PROTOCOL
public static final java.lang.String HOST
public static final java.lang.String URL_PREFIX
public static final java.lang.String FONT_PROPERTY
public static final java.lang.String BACKGROUND_COLOR_PROPERTY
public static final java.lang.String FOREGROUND_COLOR_PROPERTY
public static final java.lang.String TEXT_PADDING_PROPERTY
Constructor Detail |
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public DynamicStringImageURLFileSystemHelper()
Method Detail |
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public static java.awt.image.BufferedImage getImage(java.lang.String text, java.lang.String params)
protected java.net.URL getRealURL(java.net.URL url)
IdeURLFileSystemHelper
URL
encoded in the specified url
. Addins that introduce an new "ide" protocol must subclass this class an override this method in order to determine the real URL
.getRealURL
in class IdeURLFileSystemHelper
public java.io.InputStream openInputStream(java.net.URL url) throws java.io.IOException
URLFileSystemHelper
InputStream
on the specified URL
.
The default implementation attempts to open the InputStream
through the URLConnection
associated with the URL
. If the URLConnection
implementation does not support an InputStream
then an UnknownServiceException
(a runtime exception) will be thrown.
openInputStream
in class IdeURLFileSystemHelper
java.io.FileNotFoundException
- if the resource at the specified URL does not exist.java.io.IOException
- if an I/O error occurs when trying to open the InputStream
.java.net.UnknownServiceException
- if the URLConnection
backing the specified URL
does not support an InputStream
.IOException
, URLConnection
, UnknownServiceException
public java.io.OutputStream openOutputStream(java.net.URL url) throws java.io.IOException
URLFileSystemHelper
OutputStream
on the URL
. If the file does not exist, the file should be created. If the directory path to the file does not exist, all necessary directories should be created.
The default implementation attempts to open the OutputStream
through the URLConnection
associated with the URL
. If the URLConnection
implementation does not support an OutputStream
then an UnknownServiceException
(a runtime exception) will be thrown.
openOutputStream
in class IdeURLFileSystemHelper
java.io.IOException
- if an I/O error occurs when trying to open the OutputStream
.java.net.UnknownServiceException
- if the URLConnection
backing the specified URL
does not support an OutputStream
.IOException
, URLConnection
, UnknownServiceException
public java.io.Reader createReader(java.net.URL url, java.lang.String encoding) throws java.io.IOException
URLFileSystemHelper
Reader
on the specified URL
with the specified encoding.
The default implementation opens the InputStream
and then creates an InputStreamReader
.
createReader
in class IdeURLFileSystemHelper
java.io.IOException
- if an I/O error occurs when trying to open the InputStream
.java.net.UnknownServiceException
- if the URLConnection
backing the specified URL
does not support an InputStream
.InputStreamReader
, IOException
, URLConnection
, UnknownServiceException
public boolean exists(java.net.URL url)
URLFileSystemHelper
true
if the specified URL
points to a resource that currently exists; returns false
otherwise.
The default implementation simply returns false
without doing anything.
exists
in class IdeURLFileSystemHelper
public boolean canRead(java.net.URL url)
URLFileSystemHelper
URL
.canRead
in class IdeURLFileSystemHelper
true
if and only if the specified URL
points to a resource that exists and can be read by the application; false
otherwise.public java.lang.String getSuffix(java.net.URL url)
URLFileSystemHelper
URL
, then all of the text starting at the last dot is returned, including the dot. If the last dot is also the last character in the path, then the dot by itself is returned. If there is no dot in the path, then the empty string is returned.getSuffix
in class IdeURLFileSystemHelper
public boolean hasSuffix(java.net.URL url, java.lang.String suffix)
URLFileSystemHelper
true
if the path part of the URL
ends with the given suffix
String. The suffix can be any String and doesn't necessarily have to be one that begins with a dot ('.'). If you are trying to test whether the path part of the URL
ends with a particular file extension, then the suffix
parameter should begin with a '.' character to ensure that you get the right return value.hasSuffix
in class IdeURLFileSystemHelper
public java.net.URL canonicalize(java.net.URL url)
URLFileSystemHelper
URL
, if one is available.
The default implementation just returns the specified URL
as-is.
canonicalize
in class IdeURLFileSystemHelper
public boolean canWrite(java.net.URL url)
URLFileSystemHelper
URL
.canWrite
in class IdeURLFileSystemHelper
true
if and only if the specified URL
points to a file that exists and the application is allowed to write to the file; false
otherwise.public boolean canCreate(java.net.URL url)
URLFileSystemHelper
URL
.canCreate
in class IdeURLFileSystemHelper
true
if the resource at the specified URL
exists or can be created; false
otherwise.public boolean canDelete(java.net.URL url)
URLFileSystemHelper
URL
.canDelete
in class IdeURLFileSystemHelper
true
if the resource at the specified URL
can be deleted.URLFileSystem.canDelete(URL)
public boolean isValid(java.net.URL url)
URLFileSystemHelper
URL
is valid. If the resource pointed by the URL
exists the method returns true
. If the resource does not exist, the method tests that all components of the path can be created.isValid
in class IdeURLFileSystemHelper
true
if the URL
is valid.public java.net.URL convertSuffix(java.net.URL url, java.lang.String oldSuffix, java.lang.String newSuffix)
URLFileSystemHelper
URL
and checks if its Object.toString()
representation ends with the specified oldSuffix
. If it does, the suffix is replaced with newSuffix
. Both suffix parameters must include the leading dot ('.') if the dot is part of the suffix. If the specified URL
does not end with the oldSuffix
, then the newSuffix
is simply appended to the end of the original URL
.convertSuffix
in class IdeURLFileSystemHelper
public void delete(java.net.URL url) throws java.io.IOException
URLFileSystemHelper
URL
. If the content is a file (or analogous to a file), then the file is removed from its directory (or container). If the content is a directory (or analogous to a directory), then the directory is removed only if it is empty (i.e. contains no other files or directories).
The default implementation does nothing.
delete
in class IdeURLFileSystemHelper
java.io.IOException
- if an I/O exception occurred when trying to delete the URL.public java.net.URL ensureSuffix(java.net.URL url, java.lang.String suffix)
URLFileSystemHelper
URL
ends with the specified suffix
. The suffix does not necessarily have to start with a ".", so if a leading "." is required, the specified suffix must contain it -- e.g. ".java", ".class".
If the URL
already ends in the specified suffix, then the URL
itself is returned. Otherwise, a new URL
is created with the the specified suffix appended to the original URL
's path part, and the new URL
is returned.
The default implementation first checks with URLFileSystemHelper.hasSuffix(URL, String)
to see if the URL
already ends with the specified suffix. If not, the suffix is simply appended to the path part of the URL
, and the new URL
is returned.
ensureSuffix
in class IdeURLFileSystemHelper
URL
, based on the specified URL
, whose path part ends with the specified suffix.public boolean equals(java.net.URL url1, java.net.URL url2)
URLFileSystemHelper
URL
objects to determine whether they point to the same resource. This method returns true
if the URL
s point to the same resource and returns false
if the URL
s do not point to the same resource.
This method and all subclass implementations can assume that both URL
parameters are not null
. The URLFileSystem.equals(URL, URL)
method is responsible for checking that the two URL
s are not null
.
It can also be assumed that both URL
parameters have the same protocol and that the protocol is appropriate for this URLFileSystemHelper
. This determination is also the responsibility of URLFileSystem.equals(URL, URL)
.
The default implementation for this method checks to see if the various parts of the URLs are equal. Unlike URL.equals(java.lang.Object)
, the host names are not resolved to InetAddresses.
equals
in class IdeURLFileSystemHelper
public int hashCode(java.net.URL url)
URLFileSystemHelper
URL
object consistent with URLFileSystemHelper.equals(java.net.URL, java.net.URL)
. This method and all subclass implementations can assume that the URL
parameter is not null
. The URLFileSystem.hashCode(URL)
method is responsible for ensuring this condition.
It can also be assumed that the protocol is appropriate for this URLFileSystemHelper
. The URLFileSystem.hashCode(URL)
method is also responsible for ensuring this condition and for incorporating the protocol into the hash code.
The default implementation for this method computes the hash code from the hash codes of the various parts of the URLs are equal. Unlike URL.equals(java.lang.Object)
, the host names is not resolved to an InetAddress.
hashCode
in class IdeURLFileSystemHelper
public javax.swing.Icon getDefaultIcon(java.net.URL url)
URLFileSystemHelper
JFileChooser
icons for a directory or file, depending on the type of resource represented by the URL
.getDefaultIcon
in class IdeURLFileSystemHelper
URLFileSystemHelper.getSystemIcon(URL)
public java.lang.String getFileName(java.net.URL url)
URLFileSystemHelper
URL
, not including any protocol, hostname authentication, directory path, anchor, or query. This simply returns the simple filename. For example, if you pass in an URL
whose string representation is:
protocol://host:1010/dir1/dir2/file.ext#anchor?query
the returned value is "file.ext
" (without the quotes).
The returned file name should only be used for display purposes and not for opening streams or otherwise trying to locate the resource indicated by the URL
.
getFileName
in class IdeURLFileSystemHelper
public long getLength(java.net.URL url)
URLFileSystemHelper
URL
points to. If the length cannot be determined, -1
is returned.
The default implementation attempts to get the content length from the URLConnection
associated with the URL
. If that fails for some reason (e.g. the resource does not exist, there was some other an I/O exception, etc.), -1
is returned.
getLength
in class IdeURLFileSystemHelper
URLConnection
public java.lang.String getName(java.net.URL url)
URLFileSystemHelper
URL
, not including any protocol, hostname authentication, directory path, anchor, or query. This simply returns the simple filename. For example, if you pass in an URL
whose string representation is:
protocol://host:1010/dir1/dir2/file.ext1.ext2#anchor?query
the returned value is "file.ext1
" (without the quotes).
The returned file name should only be used for display purposes and not for opening streams or otherwise trying to locate the resource indicated by the URL
.
The default implementation first calls URLFileSystemHelper.getFileName(URL)
to get the file name part. Then all characters starting with the last occurrence of '.' are removed. The remaining string is then returned.
Note: The implementation of this method changed in the 11.1.1 release of the platform to trim the filename on the last '.'. In previous releases of the platform, it would trim the filename on the first '.'.
getName
in class IdeURLFileSystemHelper
public java.net.URL getParent(java.net.URL url)
URLFileSystemHelper
URL
representing the parent directory of the specified URL
. If there is no parent directory, then null
is returned.
The default implementation returns the value of invoking URLFactory.newURL( url, ".." )
, removing the reference portion of the URL.
getParent
in class IdeURLFileSystemHelper
public java.lang.String getPath(java.net.URL url)
URLFileSystemHelper
URL
. The returned string is acceptable to use in one of the URLFactory
methods that takes a path.
The default implementation delegates to URL.getPath()
.
getPath
in class IdeURLFileSystemHelper
public java.lang.String getPathNoExt(java.net.URL url)
URLFileSystemHelper
URL
without the last file extension. To clarify, the following examples demonstrate the different cases that come up:
URL |
String |
/dir/file.ext |
/dir/file |
/dir/file.ext1.ext2 |
/dir/file.ext1 |
/dir1.ext1/dir2.ext2/file.ext1.ext2 |
/dir1.ext1/dir2.ext2/file.ext1 |
/file.ext |
/file |
/dir.ext/file |
/dir.ext/file |
/dir/file |
/dir/file |
/file |
/file |
/.ext |
/ |
URLFileSystemHelper.getPath(URL)
and then trims off all of the characters beginning with the last "." in the path, if and only if the last "." comes after the last "/" in the path. If the last "." comes before the last "/" or if there is no "." at all, then the entire path is returned.getPathNoExt
in class IdeURLFileSystemHelper
public java.lang.String getPlatformPathName(java.net.URL url)
URLFileSystemHelper
URL
; the returned string should be considered acceptable for users to read. In general, the returned string should omit as many parts of the URL
as possible. For the "file" protocol, therefore, the platform pathname should just be the pathname alone (no protocol) using the appropriate file separator character for the current platform. For other protocols, it may be necessary to reformat the URL
string into a more human-readable form. That decision is left to each URLFileSystemHelper
implementor. The default implementation returns url.toString()
. If the URL
is null
, the empty string is returned.getPlatformPathName
in class IdeURLFileSystemHelper
URL
in platform-dependent notation. This value should only be used for display purposes and not for opening streams or otherwise trying to locate the document.public boolean isBaseURLFor(java.net.URL url1, java.net.URL url2)
URLFileSystemHelper
true
if url1
represents a a directory and url2
points to a location within url1
's directory tree.isBaseURLFor
in class IdeURLFileSystemHelper
public boolean isDirectory(java.net.URL url)
URLFileSystemHelper
URL
is a directory.
The default implementation always returns false
.
isDirectory
in class IdeURLFileSystemHelper
true
if and only if the location indicated by the URL
exists and is a directory; false
otherwise.public boolean isDirectoryPath(java.net.URL url)
URLFileSystemHelper
URL
represents a directory path. The directory path specified by the URL
need not exist.
This method is intended to be a higher performance version of the URLFileSystemHelper.isDirectory(URL)
method. Implementations of this method should attempt to ascertain whether the specified URL
represents a directory path by simply examining the URL
itself. Time consuming i/o operations should be avoided.
The default implementation returns true
if the path part of the URL
ends with a '/' and the query and ref parts of the URL
are null.
isDirectoryPath
in class IdeURLFileSystemHelper
true
if the location indicated by the URL
represents a directory path; the directory path need not exist.public boolean isHidden(java.net.URL url)
URLFileSystemHelper
URL
is a hidden file. The exact definition of hidden is protocol-dependent and possibly system-dependent. On UNIX systems, a file is considered to be hidden if its name begins with a period character ('.'). On Win32 systems, a file is considered to be hidden if it has been marked as such in the file system.
The default implementation always returns false
.
isHidden
in class IdeURLFileSystemHelper
public boolean isReadOnly(java.net.URL url)
URLFileSystemHelper
true
if the resource is read-only. A return value of false
means that trying to get an OutputStream
or trying to write to an OutputStream
based on the URL
will cause an exception to be thrown.
The default implementation always returns true
. This means that all resources are considered read-only unless a protocol-specific URLFileSystemHelper
is registered for the specified URL
and is able to determine that the resource underlying the specified URL
is not read-only.
isReadOnly
in class IdeURLFileSystemHelper
public boolean isRegularFile(java.net.URL url)
URLFileSystemHelper
URL
is a regular file. A regular is a file that is not a directory and, in addition, satisfies other system-dependent criteria.
The default implementation returns the value of exists( url ) && !isDirectory( url )
.
isRegularFile
in class IdeURLFileSystemHelper
true
if and only if the resource indicated by the URL
exists and is a normal file.public long lastModified(java.net.URL url)
URLFileSystemHelper
URL
in milliseconds since 00:00:00 GMT, Jan 1, 1970. If the timestamp can't be determined, -1
is returned.
The default implementation attemps to get the last modified time from the URLConnection
associated with the URL
. If that fails for some reason (e.g. the resource does not exist, there was some other I/O exception, etc.), -1
is returned.
lastModified
in class IdeURLFileSystemHelper
URLConnection
public java.net.URL[] list(java.net.URL url)
URLFileSystemHelper
URL
s naming files and directories in the directory indicated by the URL
. If the specified URL
does not represent a directory, then this method returns null
. Otherwise, an array of URL
s is returned, one for each file or directory in the directory. URL
s representing the directory itself or its parent are not included in the result. There is no guarantee that the URL
s will occur in any particular order.
The default implementation always returns an empty URL
array.
list
in class IdeURLFileSystemHelper
URL
s naming the files and directories in the directory indicated by the URL
. The array will be empty if the directory is empty. Returns null
if the URL
does not represent a directory or if an I/O error occurs.public java.net.URL[] list(java.net.URL url, URLFilter filter)
URLFileSystemHelper
URL
s naming files and directories in the directory indicated by the URL
; the specified URLFilter
is applied to determine which URL
s will be returned. If the specified URL
does not represent a directory, then this method returns null
. Otherwise, an array of URL
s is returned, one for each file or directory in the directory that is accepted by the specified filter. URL
s representing the directory itself or its parent are not included in the result. There is no guarantee that the URL
s will occur in any particular order.
The default implementation calls URLFileSystemHelper.list(URL)
first and then applies the URLFilter
to the resulting list.
list
in class IdeURLFileSystemHelper
URL
s naming the files and directories in the directory indicated by the URL
that are accepted by the specified URLFilter
. The array will be empty if the directory is empty. Returns null
if the URL
does not represent a directory or if an I/O error occurs.public boolean mkdir(java.net.URL url)
URLFileSystemHelper
URL
.
The default implementation always returns false
.
mkdir
in class IdeURLFileSystemHelper
true
if and only if the directory was created; false
otherwise.public boolean mkdirs(java.net.URL url)
URLFileSystemHelper
URL
including any necessary but nonexistent parent directories. Note that if this operation fails, it may have succeeded in creating some of the necessary parent directories. This method returns true
if the directory was created along with all necessary parent directories or if the directories already exist; it returns false
otherwise.mkdirs
in class IdeURLFileSystemHelper
true
if all directories were created successfully or exist; false
if there was a failure somewhere. Note that even if false
is returned, some directories may still have been created.public void rename(java.net.URL oldURL, java.net.URL newURL) throws java.io.IOException
URLFileSystemHelper
URL
to the name indicated by the second URL
.
The default implementation does nothing.
rename
in class IdeURLFileSystemHelper
java.io.IOException
- if an I/O exception occurs while renaming the URL.URLFileSystem.renameTo(URL, URL)
, URLFileSystem.renameEx(URL, URL)
public boolean setLastModified(java.net.URL url, long time)
URLFileSystemHelper
URL
to the time specified by time
. The time is specified in the number of milliseconds since the epoch (00:00:00 GMT Jan 1, 1970). The return value indicates whether or not the setting of the timestamp succeeded.
The default implementation always returns false
without doing anything.
setLastModified
in class IdeURLFileSystemHelper
public boolean setReadOnly(java.net.URL url, boolean readOnly)
URLFileSystemHelper
URL
according to the specified readOnly
flag. The return value indicates whether or not the setting of the read-only flag succeeded.
The default implementation always returns false
without doing anything.
setReadOnly
in class IdeURLFileSystemHelper
public java.lang.String toDisplayString(java.net.URL url)
URLFileSystemHelper
URL
.
The default implementation delegates to URL.toString()
.
toDisplayString
in class IdeURLFileSystemHelper
public java.lang.String toRelativeSpec(java.net.URL url, java.net.URL base)
URLFileSystemHelper
url
parameter as the URL
whose relative URI reference is to be determined and the base
parameter as the URL
that serves as the base document for the url
pararmeter. If it is not possible to produce a relative URI reference because the two URL
s are too different, then a full, absolute reference for the url
parameter is returned.
Whatever value is returned by this method, it can be used in conjunction with the base
URL
to reconstruct the fully-qualified URL
by using one of the URL
constructors that takes a context URL
plus a String
spec (i.e. the String
returned by this method).
Both the url
and base
parameters should point to documents and be absolute URL
s. Specifically, the base
parameter does not need to be modified to represent the base directory if the base
parameter already points to a document that is in the directory to which the url
parameter will be made relative. This relationship between url
and base
is exactly how relative references are treated within HTML documents. Relative references in an HTML page are resolved against the HTML page's base URL. The base URL is the HTML page itself, not the directory that contains it.
If either the url
or base
parameter needs to represent a directory rather than a file, they must end with a "/" in the path part of the URL
, such as:
http://host.com/root/my_directory/
The algorithm used by this method to determine the relative reference closely follows the recommendations made in RFC 2396. The following steps are performed, in order, to determine the relative reference:
File
so that, for example, on Win32 the comparison is case-insensitive, whereas on Unix the comparison is case-sensitive. When the protocol is not "file", comparison is always case-sensitive. (This distinction is made by FileURLFileSystemHelper
, which overrides the relevant part of the algorithm.)URL
(except for the document name itself), then a "../" sequence is prepended to the resulting relative path for each base path element that was not consumed while matching path elements.url
were consumed, then those path elements are appended to the resulting relative path as well. If the first remaining path element in url
contains a ':' character and there is no "../" sequence was prepended to the relative reference, then a "./" sequence is prepended to prevent the ':' character from being interpreted as a protocol delimiter (this is a special case in RFC 2396).url
are not appended.
This method is implemented using the template method design pattern, so it is possible for subclasses to override just part of the algorithm in order to handle protocol-specific details.
toRelativeSpec
in class IdeURLFileSystemHelper
public java.lang.String toRelativeSpec(java.net.URL url, java.net.URL base, boolean mustConsumeBase)
URLFileSystemHelper
URLFileSystemHelper.toRelativeSpec(URL, URL)
that has a flag that indicates whether the base URL
should be fully consumed in the process of calculating the relative spec.
If mustConsumeBase
is true
, then this method will return a non-null
relative spec if and only if the base URL
was fully consumed in the process of calculating the relative spec. Otherwise, if any part of the base URL
remained, then this method returns null
.
If mustConsumeBase
is false
, then this method will return a non-null
relative spec regardless of how much of the base URL
is consumed during the determination.
toRelativeSpec
in class IdeURLFileSystemHelper
public java.net.URL getBaseParent(java.net.URL url, java.lang.String relativeSpec)
URLFileSystemHelper
url
should be absolute and point to a directory. It must end with a "/" in the path part of the URL
, such as:
http://host.com/root/my_directory/
If the url
does not end with a "/", it will be assumed that the url
points to a document. The document name will then be stripped in order to determine the parent directory. The relativeSpec
parameter should be a relative path. If the relativeSpec
does not end with a "/", it will be assumed that the relativeSpec
points to a document. The document name will then be stripped in order to determine the parent directory. For example, if the url
points to:
file://c:/root/dir1/dir2/dir3/
and the relativeSpec
is:
dir2/dir3
The returned value would be:
file://c:/root/dir1/
If the relativeSpec
path elements are not fully contained in the last part of the url
path the value returned is the url itself if the url path ends with a "/" or the url parent otherwise.getBaseParent
in class IdeURLFileSystemHelper
protected java.lang.String getImageText(java.net.URL url) throws java.io.IOException
java.io.IOException
protected static java.lang.String getParam(java.lang.String params, java.lang.String paramName)
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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.2) E13403-10 |
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