Class ForwardingJavaFileManager<M extends JavaFileManager>
- Type Parameters:
M
- the kind of file manager forwarded to by this object
- All Implemented Interfaces:
Closeable
,Flushable
,AutoCloseable
,JavaFileManager
,OptionChecker
Unless stated otherwise, references in this class to "this file manager" should be interpreted as referring indirectly to the delegate file manager.
- Since:
- 1.6
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Nested Class Summary
Nested classes/interfaces inherited from interface javax.tools.JavaFileManager
JavaFileManager.Location
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Field Summary
Modifier and TypeFieldDescriptionprotected final M
The file manager to which all methods are delegated. -
Constructor Summary
ModifierConstructorDescriptionprotected
ForwardingJavaFileManager
(M fileManager) Creates a new instance ofForwardingJavaFileManager
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Method Summary
Modifier and TypeMethodDescriptionvoid
close()
Releases any resources opened by this file manager directly or indirectly.boolean
contains
(JavaFileManager.Location location, FileObject fo) Determines whether or not a given file object is "contained in" a specified location.void
flush()
Flushes any resources opened for output by this file manager directly or indirectly.getClassLoader
(JavaFileManager.Location location) Returns a class loader for loading plug-ins from the given package-oriented location.getFileForInput
(JavaFileManager.Location location, String packageName, String relativeName) Returns a file object for input representing the specified relative name in the specified package in the given package-oriented location.getFileForOutput
(JavaFileManager.Location location, String packageName, String relativeName, FileObject sibling) Returns a file object for output representing the specified relative name in the specified package in the given location.getFileForOutputForOriginatingFiles
(JavaFileManager.Location location, String packageName, String relativeName, FileObject... originatingFiles) Returns a file object for output representing the specified relative name in the specified package in the given location.getJavaFileForInput
(JavaFileManager.Location location, String className, JavaFileObject.Kind kind) Returns a file object for input representing the specified class of the specified kind in the given package-oriented location.getJavaFileForOutput
(JavaFileManager.Location location, String className, JavaFileObject.Kind kind, FileObject sibling) Returns a file object for output representing the specified class of the specified kind in the given package-oriented location.getJavaFileForOutputForOriginatingFiles
(JavaFileManager.Location location, String className, JavaFileObject.Kind kind, FileObject... originatingFiles) Returns a file object for output representing the specified class of the specified kind in the given package-oriented location.getLocationForModule
(JavaFileManager.Location location, String moduleName) Gets a location for a named module within a location, which may be either a module-oriented location or an output location.getLocationForModule
(JavaFileManager.Location location, JavaFileObject fo) Gets a location for the module containing a specific file to be found within a location, which may be either a module-oriented location or an output location.<S> ServiceLoader
<S> getServiceLoader
(JavaFileManager.Location location, Class<S> service) Get a service loader for a specific service class from a given location.boolean
handleOption
(String current, Iterator<String> remaining) Handles one option.boolean
hasLocation
(JavaFileManager.Location location) Determines if a location is known to this file manager.inferBinaryName
(JavaFileManager.Location location, JavaFileObject file) Infers a binary name of a file object based on a package-oriented location.inferModuleName
(JavaFileManager.Location location) Infer the name of the module from its location, as returned bygetLocationForModule
orlistModuleLocations
.boolean
isSameFile
(FileObject a, FileObject b) Compares two file objects and returns true if they represent the same underlying object.int
isSupportedOption
(String option) Determines if the given option is supported and if so, the number of arguments the option takes.list
(JavaFileManager.Location location, String packageName, Set<JavaFileObject.Kind> kinds, boolean recurse) Lists all file objects matching the given criteria in the given package-oriented location.Lists the locations for all the modules in a module-oriented location or an output location.
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Field Details
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fileManager
The file manager to which all methods are delegated.
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Constructor Details
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ForwardingJavaFileManager
Creates a new instance ofForwardingJavaFileManager
.- Parameters:
fileManager
- delegate to this file manager
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Method Details
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getClassLoader
Description copied from interface:JavaFileManager
Returns a class loader for loading plug-ins from the given package-oriented location. For example, to load annotation processors, a compiler will request a class loader for theANNOTATION_PROCESSOR_PATH
location.- Specified by:
getClassLoader
in interfaceJavaFileManager
- Parameters:
location
- a location- Returns:
- a class loader for the given location; or
null
if loading plug-ins from the given location is disabled or if the location is not known - Throws:
IllegalStateException
- ifJavaFileManager.close()
has been called and this file manager cannot be reopened
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list
public Iterable<JavaFileObject> list(JavaFileManager.Location location, String packageName, Set<JavaFileObject.Kind> kinds, boolean recurse) throws IOException Description copied from interface:JavaFileManager
Lists all file objects matching the given criteria in the given package-oriented location. List file objects in "subpackages" if recurse is true.Note: even if the given location is unknown to this file manager, it may not return
null
. Also, an unknown location may not cause an exception.- Specified by:
list
in interfaceJavaFileManager
- Parameters:
location
- a locationpackageName
- a package namekinds
- return objects only of these kindsrecurse
- if true include "subpackages"- Returns:
- an Iterable of file objects matching the given criteria
- Throws:
IOException
- if an I/O error occurred, or ifJavaFileManager.close()
has been called and this file manager cannot be reopenedIllegalStateException
- ifJavaFileManager.close()
has been called and this file manager cannot be reopened
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inferBinaryName
Description copied from interface:JavaFileManager
Infers a binary name of a file object based on a package-oriented location. The binary name returned might not be a valid binary name according to The Java Language Specification.- Specified by:
inferBinaryName
in interfaceJavaFileManager
- Parameters:
location
- a locationfile
- a file object- Returns:
- a binary name or
null
the file object is not found in the given location - Throws:
IllegalStateException
- ifJavaFileManager.close()
has been called and this file manager cannot be reopened
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isSameFile
Description copied from interface:JavaFileManager
Compares two file objects and returns true if they represent the same underlying object.- Specified by:
isSameFile
in interfaceJavaFileManager
- Parameters:
a
- a file objectb
- a file object- Returns:
- true if the given file objects represent the same underlying object
- Throws:
IllegalArgumentException
- if either of the arguments were created with another file manager and this file manager does not support foreign file objects
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handleOption
Description copied from interface:JavaFileManager
Handles one option. Ifcurrent
is an option to this file manager, it will consume any arguments to that option fromremaining
and return true, otherwise return false.- Specified by:
handleOption
in interfaceJavaFileManager
- Parameters:
current
- current optionremaining
- remaining options- Returns:
- true if this option was handled by this file manager, false otherwise
- Throws:
IllegalArgumentException
- if this option to this file manager is used incorrectlyIllegalStateException
- ifJavaFileManager.close()
has been called and this file manager cannot be reopened
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hasLocation
Description copied from interface:JavaFileManager
Determines if a location is known to this file manager.- Specified by:
hasLocation
in interfaceJavaFileManager
- Parameters:
location
- a location- Returns:
- true if the location is known
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isSupportedOption
Description copied from interface:OptionChecker
Determines if the given option is supported and if so, the number of arguments the option takes.- Specified by:
isSupportedOption
in interfaceOptionChecker
- Parameters:
option
- an option- Returns:
- the number of arguments the given option takes or -1 if the option is not supported
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getJavaFileForInput
public JavaFileObject getJavaFileForInput(JavaFileManager.Location location, String className, JavaFileObject.Kind kind) throws IOException Description copied from interface:JavaFileManager
Returns a file object for input representing the specified class of the specified kind in the given package-oriented location.- Specified by:
getJavaFileForInput
in interfaceJavaFileManager
- Parameters:
location
- a locationclassName
- the name of a classkind
- the kind of file, must be one ofSOURCE
orCLASS
- Returns:
- a file object, might return
null
if the file does not exist - Throws:
IllegalArgumentException
- if the location is not known to this file manager and the file manager does not support unknown locations, or if the kind is not valid, or if the location is a module-oriented locationIllegalStateException
- ifJavaFileManager.close()
has been called and this file manager cannot be reopenedIOException
- if an I/O error occurred, or ifJavaFileManager.close()
has been called and this file manager cannot be reopened
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getJavaFileForOutput
public JavaFileObject getJavaFileForOutput(JavaFileManager.Location location, String className, JavaFileObject.Kind kind, FileObject sibling) throws IOException Description copied from interface:JavaFileManager
Returns a file object for output representing the specified class of the specified kind in the given package-oriented location.Optionally, this file manager might consider the sibling as a hint for where to place the output. The exact semantics of this hint is unspecified. The JDK compiler, javac, for example, will place class files in the same directories as originating source files unless a class file output directory is provided. To facilitate this behavior, javac might provide the originating source file as sibling when calling this method.
- Specified by:
getJavaFileForOutput
in interfaceJavaFileManager
- Parameters:
location
- a package-oriented locationclassName
- the name of a classkind
- the kind of file, must be one ofSOURCE
orCLASS
sibling
- a file object to be used as hint for placement; might benull
- Returns:
- a file object for output
- Throws:
IllegalArgumentException
- if sibling is not known to this file manager, or if the location is not known to this file manager and the file manager does not support unknown locations, or if the kind is not valid, or if the location is not an output locationIllegalStateException
-JavaFileManager.close()
has been called and this file manager cannot be reopenedIOException
- if an I/O error occurred, or ifJavaFileManager.close()
has been called and this file manager cannot be reopened
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getJavaFileForOutputForOriginatingFiles
public JavaFileObject getJavaFileForOutputForOriginatingFiles(JavaFileManager.Location location, String className, JavaFileObject.Kind kind, FileObject... originatingFiles) throws IOException Returns a file object for output representing the specified class of the specified kind in the given package-oriented location.The provided
originatingFiles
represent files that were, in an unspecified way, used to create the content of the file created by this method. SeeoriginatingElements
inFiler.createSourceFile(java.lang.CharSequence, javax.lang.model.element.Element...)
.Elements.getFileObjectOf(javax.lang.model.element.Element)
may be used to convert theElement
s toFileObject
s.- Specified by:
getJavaFileForOutputForOriginatingFiles
in interfaceJavaFileManager
- Implementation Requirements:
- If the subclass of the
ForwardingJavaFileManager
overrides thegetJavaFileForOutput(javax.tools.JavaFileManager.Location, java.lang.String, javax.tools.JavaFileObject.Kind, javax.tools.FileObject)
method, this method will delegate to it as per the general contract ofJavaFileManager.getJavaFileForOutputForOriginatingFiles(javax.tools.JavaFileManager.Location, java.lang.String, javax.tools.JavaFileObject.Kind, javax.tools.FileObject...)
. If the subclass does not override the method, the call will be delegated to thefileManager
. - Parameters:
location
- a package-oriented locationclassName
- the name of a classkind
- the kind of file, must be one ofSOURCE
orCLASS
originatingFiles
- the files which are contributing to this newly created file;null
is equivalent to emptyoriginatingFiles
, meaning no known originating files- Returns:
- a file object for output
- Throws:
IllegalArgumentException
- if sibling is not known to this file manager, or if the location is not known to this file manager and the file manager does not support unknown locations, or if the kind is not valid, or if the location is not an output locationIllegalStateException
-JavaFileManager.close()
has been called and this file manager cannot be reopenedIOException
- if an I/O error occurred, or ifJavaFileManager.close()
has been called and this file manager cannot be reopened- Since:
- 18
- See Also:
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getFileForInput
public FileObject getFileForInput(JavaFileManager.Location location, String packageName, String relativeName) throws IOException Description copied from interface:JavaFileManager
Returns a file object for input representing the specified relative name in the specified package in the given package-oriented location.If the returned object represents a source or class file, it must be an instance of
JavaFileObject
.Informally, the file object returned by this method is located in the concatenation of the location, package name, and relative name. For example, to locate the properties file "resources/compiler.properties" in the package "com.sun.tools.javac" in the SOURCE_PATH location, this method might be called like so:
getFileForInput(SOURCE_PATH, "com.sun.tools.javac", "resources/compiler.properties");
If the call was executed on Windows, with SOURCE_PATH set to
"C:\Documents and Settings\UncleBob\src\share\classes"
, a valid result would be a file object representing the file"C:\Documents and Settings\UncleBob\src\share\classes\com\sun\tools\javac\resources\compiler.properties"
.- Specified by:
getFileForInput
in interfaceJavaFileManager
- Parameters:
location
- a package-oriented locationpackageName
- a package namerelativeName
- a relative name- Returns:
- a file object, might return
null
if the file does not exist - Throws:
IllegalArgumentException
- if the location is not known to this file manager and the file manager does not support unknown locations, or ifrelativeName
is not valid, or if the location is a module-oriented locationIllegalStateException
- ifJavaFileManager.close()
has been called and this file manager cannot be reopenedIOException
- if an I/O error occurred, or ifJavaFileManager.close()
has been called and this file manager cannot be reopened
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getFileForOutput
public FileObject getFileForOutput(JavaFileManager.Location location, String packageName, String relativeName, FileObject sibling) throws IOException Description copied from interface:JavaFileManager
Returns a file object for output representing the specified relative name in the specified package in the given location.Optionally, this file manager might consider the sibling as a hint for where to place the output. The exact semantics of this hint is unspecified. The JDK compiler, javac, for example, will place class files in the same directories as originating source files unless a class file output directory is provided. To facilitate this behavior, javac might provide the originating source file as sibling when calling this method.
If the returned object represents a source or class file, it must be an instance of
JavaFileObject
.Informally, the file object returned by this method is located in the concatenation of the location, package name, and relative name or next to the sibling argument. See
getFileForInput
for an example.- Specified by:
getFileForOutput
in interfaceJavaFileManager
- Parameters:
location
- an output locationpackageName
- a package namerelativeName
- a relative namesibling
- a file object to be used as hint for placement; might benull
- Returns:
- a file object
- Throws:
IllegalArgumentException
- if sibling is not known to this file manager, or if the location is not known to this file manager and the file manager does not support unknown locations, or ifrelativeName
is not valid, or if the location is not an output locationIllegalStateException
- ifJavaFileManager.close()
has been called and this file manager cannot be reopenedIOException
- if an I/O error occurred, or ifJavaFileManager.close()
has been called and this file manager cannot be reopened
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getFileForOutputForOriginatingFiles
public FileObject getFileForOutputForOriginatingFiles(JavaFileManager.Location location, String packageName, String relativeName, FileObject... originatingFiles) throws IOException Returns a file object for output representing the specified relative name in the specified package in the given location.The provided
originatingFiles
represent files that were, in an unspecified way, used to create the content of the file created by this method. SeeoriginatingElements
inFiler.createResource(javax.tools.JavaFileManager.Location, java.lang.CharSequence, java.lang.CharSequence, javax.lang.model.element.Element...)
.Elements.getFileObjectOf(javax.lang.model.element.Element)
may be used to convert theElement
s toFileObject
s.If the returned object represents a source or class file, it must be an instance of
JavaFileObject
.Informally, the file object returned by this method is located in the concatenation of the location, package name, and relative name or in a location inferred from the
originatingFiles
. SeegetFileForInput
for an example.- Specified by:
getFileForOutputForOriginatingFiles
in interfaceJavaFileManager
- Implementation Requirements:
- If the subclass of the
ForwardingJavaFileManager
overrides thegetFileForOutput(javax.tools.JavaFileManager.Location, java.lang.String, java.lang.String, javax.tools.FileObject)
method, this method will delegate to it as per the general contract ofJavaFileManager.getFileForOutputForOriginatingFiles(javax.tools.JavaFileManager.Location, java.lang.String, java.lang.String, javax.tools.FileObject...)
. If the subclass does not override the method, the call will be delegated to thefileManager
. - Parameters:
location
- an output locationpackageName
- a package namerelativeName
- a relative nameoriginatingFiles
- the files which are contributing to this newly created file;null
is equivalent to emptyoriginatingFiles
, meaning no known originating files- Returns:
- a file object
- Throws:
IllegalArgumentException
- if sibling is not known to this file manager, or if the location is not known to this file manager and the file manager does not support unknown locations, or ifrelativeName
is not valid, or if the location is not an output locationIllegalStateException
- ifJavaFileManager.close()
has been called and this file manager cannot be reopenedIOException
- if an I/O error occurred, or ifJavaFileManager.close()
has been called and this file manager cannot be reopened- Since:
- 18
- See Also:
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flush
Description copied from interface:JavaFileManager
Flushes any resources opened for output by this file manager directly or indirectly. Flushing a closed file manager has no effect.- Specified by:
flush
in interfaceFlushable
- Specified by:
flush
in interfaceJavaFileManager
- Throws:
IOException
- if an I/O error occurred- See Also:
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close
Description copied from interface:JavaFileManager
Releases any resources opened by this file manager directly or indirectly. This might render this file manager useless and the effect of subsequent calls to methods on this object or any objects obtained through this object is undefined unless explicitly allowed. However, closing a file manager which has already been closed has no effect.- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Specified by:
close
in interfaceJavaFileManager
- Throws:
IOException
- if an I/O error occurred- See Also:
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getLocationForModule
public JavaFileManager.Location getLocationForModule(JavaFileManager.Location location, String moduleName) throws IOException Description copied from interface:JavaFileManager
Gets a location for a named module within a location, which may be either a module-oriented location or an output location. The result will be an output location if the given location is an output location, or it will be a package-oriented location.- Specified by:
getLocationForModule
in interfaceJavaFileManager
- Parameters:
location
- the module-oriented locationmoduleName
- the name of the module to be found- Returns:
- the location for the named module
- Throws:
IOException
- if an I/O error occurred- Since:
- 9
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getLocationForModule
public JavaFileManager.Location getLocationForModule(JavaFileManager.Location location, JavaFileObject fo) throws IOException Description copied from interface:JavaFileManager
Gets a location for the module containing a specific file to be found within a location, which may be either a module-oriented location or an output location. The result will be an output location if the given location is an output location, or it will be a package-oriented location.- Specified by:
getLocationForModule
in interfaceJavaFileManager
- Parameters:
location
- the module-oriented locationfo
- the file- Returns:
- the module containing the file
- Throws:
IOException
- if an I/O error occurred- Since:
- 9
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getServiceLoader
public <S> ServiceLoader<S> getServiceLoader(JavaFileManager.Location location, Class<S> service) throws IOException Description copied from interface:JavaFileManager
Get a service loader for a specific service class from a given location. If the location is a module-oriented location, the service loader will use the service declarations in the modules found in that location. Otherwise, a service loader is created using the package-oriented location, in which case, the services are determined using the provider-configuration files inMETA-INF/services
.- Specified by:
getServiceLoader
in interfaceJavaFileManager
- Type Parameters:
S
- the service class- Parameters:
location
- the module-oriented locationservice
- theClass
object of the service class- Returns:
- a service loader for the given service class
- Throws:
IOException
- if an I/O error occurred- Since:
- 9
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inferModuleName
Description copied from interface:JavaFileManager
Infer the name of the module from its location, as returned bygetLocationForModule
orlistModuleLocations
.- Specified by:
inferModuleName
in interfaceJavaFileManager
- Parameters:
location
- a package-oriented location representing a module- Returns:
- the name of the module
- Throws:
IOException
- if an I/O error occurred- Since:
- 9
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listLocationsForModules
public Iterable<Set<JavaFileManager.Location>> listLocationsForModules(JavaFileManager.Location location) throws IOException Description copied from interface:JavaFileManager
Lists the locations for all the modules in a module-oriented location or an output location. The locations that are returned will be output locations if the given location is an output, or it will be a package-oriented locations.- Specified by:
listLocationsForModules
in interfaceJavaFileManager
- Parameters:
location
- the module-oriented location for which to list the modules- Returns:
- a series of sets of locations containing modules
- Throws:
IOException
- if an I/O error occurred- Since:
- 9
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contains
Description copied from interface:JavaFileManager
Determines whether or not a given file object is "contained in" a specified location.For a package-oriented location, a file object is contained in the location if there exist values for packageName and relativeName such that either of the following calls would return the
same
file object:getFileForInput(location, packageName, relativeName) getFileForOutput(location, packageName, relativeName, null)
For a module-oriented location, a file object is contained in the location if there exists a module that may be obtained by the call:
getLocationForModule(location, moduleName)
- Specified by:
contains
in interfaceJavaFileManager
- Parameters:
location
- the locationfo
- the file object- Returns:
- whether or not the file is contained in the location
- Throws:
IOException
- if there is a problem determining the result- Since:
- 9
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