org.apache.tika.io

Class TemporaryResources

java.lang.Object

org.apache.tika.io.TemporaryResources

All Implemented Interfaces:

Closeable, AutoCloseable

public class TemporaryResources
extends Object
implements Closeable

Utility class for tracking and ultimately closing or otherwise disposing a collection of temporary resources.

Note that this class is not thread-safe.

Since:

Apache Tika 0.10

Constructor Summary

Constructors

Constructor and Description
TemporaryResources()

Method Summary

Modifier and Type	Method and Description
void	addResource(Closeable resource) Adds a new resource to the set of tracked resources that will all be closed when the close() method is called.
void	close() Closes all tracked resources.
Path	createTempFile()
Path	createTempFile(Metadata metadata) Creates a temporary file that will automatically be deleted when the close() method is called, returning its path.
Path	createTempFile(String suffix) Creates a temporary file that will automatically be deleted when the close() method is called, returning its path.
File	createTemporaryFile() Creates and returns a temporary file that will automatically be deleted when the close() method is called.
void	dispose() Calls the close() method and wraps the potential IOException into a TikaException for convenience when used within Tika.
<T extends Closeable> T	getResource(Class<T> klass) Returns the latest of the tracked resources that implements or extends the given interface or class.
void	setTemporaryFileDirectory(File tempFileDir) Sets the directory to be used for the temporary files created by the createTempFile(String) method.
void	setTemporaryFileDirectory(Path tempFileDir) Sets the directory to be used for the temporary files created by the createTempFile(String) method.

Methods inherited from class java.lang.Object

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

Constructor Detail

TemporaryResources

public TemporaryResources()

Method Detail

setTemporaryFileDirectory

public void setTemporaryFileDirectory(Path tempFileDir)

Sets the directory to be used for the temporary files created by the createTempFile(String) method.

Parameters:

tempFileDir - temporary file directory, or null for the system default

setTemporaryFileDirectory

public void setTemporaryFileDirectory(File tempFileDir)

Sets the directory to be used for the temporary files created by the createTempFile(String) method.

Parameters:

tempFileDir - temporary file directory, or null for the system default

See Also:

setTemporaryFileDirectory(Path)

createTempFile

public Path createTempFile(String suffix)
                    throws IOException

Creates a temporary file that will automatically be deleted when the close() method is called, returning its path.

Parameters:

suffix - -- the suffix of the file if known, starting with "." as in ".pdf"

Returns:

Path to created temporary file that will be deleted after closing

Throws:

IOException

createTempFile

public Path createTempFile()
                    throws IOException

Throws:

IOException

createTempFile

public Path createTempFile(Metadata metadata)
                    throws IOException

Creates a temporary file that will automatically be deleted when the close() method is called, returning its path.

Returns:

Path to created temporary file that will be deleted after closing

Throws:

IOException

createTemporaryFile

public File createTemporaryFile()
                         throws IOException

Creates and returns a temporary file that will automatically be deleted when the close() method is called.

Returns:

Created temporary file that'll be deleted after closing

Throws:

IOException

See Also:

createTempFile(String)

addResource

public void addResource(Closeable resource)

Adds a new resource to the set of tracked resources that will all be closed when the close() method is called.

Parameters:

resource - resource to be tracked

getResource

public <T extends Closeable> T getResource(Class<T> klass)

Returns the latest of the tracked resources that implements or extends the given interface or class.

Parameters:

klass - interface or class

Returns:

matching resource, or null if not found

close

public void close()
           throws IOException

Closes all tracked resources. The resources are closed in reverse order from how they were added.

Any suppressed exceptions from managed resources are collected and then added to the first thrown exception, which is re-thrown once all the resources have been closed.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException - if one or more of the tracked resources could not be closed

dispose

public void dispose()
             throws TikaException

Calls the close() method and wraps the potential IOException into a TikaException for convenience when used within Tika.

Throws:

TikaException - if one or more of the tracked resources could not be closed