Package org.apache.pdfbox.pdmodel.font

Class FileSystemFontProvider

java.lang.Object

org.apache.pdfbox.pdmodel.font.FontProvider

org.apache.pdfbox.pdmodel.font.FileSystemFontProvider

final class FileSystemFontProvider
extends FontProvider

A FontProvider which searches for fonts on the local filesystem.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	FileSystemFontProvider.FSFontInfo

Field Summary

Fields

Modifier and Type	Field	Description
private final FontCache	cache
private static final String	CHECKSUM_PLACEHOLDER
private final List<FileSystemFontProvider.FSFontInfo>	fontInfoList
private static final org.apache.commons.logging.Log	LOG
private static final boolean	SKIP_CHECKSUMS	This option changes publicly visible behaviour: ".pdfbox.cache" file will have hash="-" for all files.

Constructor Summary

Constructors

Constructor	Description
FileSystemFontProvider(FontCache cache)	Constructor.

Method Summary

Modifier and Type	Method	Description
private void	addTrueTypeCollection(File ttcFile)	Adds a TTC or OTC to the file cache.
private void	addTrueTypeFont(File ttfFile)	Adds an OTF or TTF font to the file cache.
private void	addTrueTypeFontImpl(FontHeaders fontHeaders, File file, String hash)	Adds an OTF or TTF font to the file cache.
private void	addType1Font(File pfbFile)	Adds a Type 1 font to the file cache.
private static String	computeHash(InputStream is)
private FileSystemFontProvider.FSFontInfo	createFSIgnored(File file, FontFormat format, String postScriptName)
private File	getDiskCacheFile()
List<? extends FontInfo>	getFontInfo()	Returns a list of information about fonts on the system.
private static boolean	isBadPath(String path)
private List<FileSystemFontProvider.FSFontInfo>	loadDiskCache(List<File> files)	Loads the font metadata cache from disk.
private void	saveDiskCache()	Saves the font metadata cache to disk.
private void	scanFonts(List<File> files)
String	toDebugString()	Returns a string containing debugging information.
private void	writeFontInfo(BufferedWriter writer, FileSystemFontProvider.FSFontInfo fontInfo)

Methods inherited from class java.lang.Object

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

Field Details

LOG

private static final org.apache.commons.logging.Log LOG

SKIP_CHECKSUMS

private static final boolean SKIP_CHECKSUMS

This option changes publicly visible behaviour: ".pdfbox.cache" file will have hash="-" for all files. After implementing FontHeaders, parsing font headers is faster than checksumming anyway.

CHECKSUM_PLACEHOLDER

private static final String CHECKSUM_PLACEHOLDER

See Also:

• Constant Field Values

fontInfoList

private final List<FileSystemFontProvider.FSFontInfo> fontInfoList

cache

private final FontCache cache

Constructor Details

FileSystemFontProvider

FileSystemFontProvider(FontCache cache)

Constructor.

Method Details

createFSIgnored

private FileSystemFontProvider.FSFontInfo createFSIgnored(File file,
 FontFormat format,
 String postScriptName)

scanFonts

private void scanFonts(List<File> files)

getDiskCacheFile

private File getDiskCacheFile()

isBadPath

private static boolean isBadPath(String path)

saveDiskCache

private void saveDiskCache()

Saves the font metadata cache to disk.

writeFontInfo

private void writeFontInfo(BufferedWriter writer,
 FileSystemFontProvider.FSFontInfo fontInfo)
                    throws IOException

Throws:

IOException

loadDiskCache

private List<FileSystemFontProvider.FSFontInfo> loadDiskCache(List<File> files)

Loads the font metadata cache from disk.

addTrueTypeCollection

private void addTrueTypeCollection(File ttcFile)

Adds a TTC or OTC to the file cache. To reduce memory, the parsed font is not cached.

addTrueTypeFont

private void addTrueTypeFont(File ttfFile)

Adds an OTF or TTF font to the file cache. To reduce memory, the parsed font is not cached.

addTrueTypeFontImpl

private void addTrueTypeFontImpl(FontHeaders fontHeaders,
 File file,
 String hash)

Adds an OTF or TTF font to the file cache. To reduce memory, the parsed font is not cached.

addType1Font

private void addType1Font(File pfbFile)

Adds a Type 1 font to the file cache. To reduce memory, the parsed font is not cached.

toDebugString

public String toDebugString()

Description copied from class: FontProvider

Returns a string containing debugging information. This will be written to the log if no suitable fonts are found and no fallback fonts are available. May be null.

Specified by:

toDebugString in class FontProvider

Returns:

string with debug information or null

getFontInfo

public List<? extends FontInfo> getFontInfo()

Description copied from class: FontProvider

Returns a list of information about fonts on the system.

Specified by:

getFontInfo in class FontProvider

Returns:

a list of FntInfo instances for all fonts on the system

computeHash

private static String computeHash(InputStream is)
                           throws IOException

Throws:

IOException