org.xhtmlrenderer.util

Class ContentTypeDetectingInputStreamWrapper

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.BufferedInputStream

org.xhtmlrenderer.util.ContentTypeDetectingInputStreamWrapper

All Implemented Interfaces:

Closeable, AutoCloseable

public class ContentTypeDetectingInputStreamWrapper
extends BufferedInputStream

This class wraps an input stream and detects if it contains certain content using "magic numbers". http://en.wikipedia.org/wiki/Magic_number_(programming) currently only pdf detection is implemented

Author:

mwyraz

Field Summary

Fields

Modifier and Type	Field and Description
protected byte[]	MAGIC_BYTES
protected static byte[]	MAGIC_BYTES_PDF
protected static int	MAX_MAGIC_BYTES

Fields inherited from class java.io.BufferedInputStream

buf, count, marklimit, markpos, pos

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
ContentTypeDetectingInputStreamWrapper(InputStream source)

Method Summary

Modifier and Type	Method and Description
boolean	isPdf()
protected boolean	streamStartsWithMagicBytes(byte[] bytes)

Methods inherited from class java.io.BufferedInputStream

available, close, mark, markSupported, read, read, reset, skip

Methods inherited from class java.io.FilterInputStream

read

Methods inherited from class java.lang.Object

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

Field Detail

MAX_MAGIC_BYTES

protected static final int MAX_MAGIC_BYTES

See Also:

Constant Field Values

MAGIC_BYTES

protected final byte[] MAGIC_BYTES

MAGIC_BYTES_PDF

protected static final byte[] MAGIC_BYTES_PDF

Constructor Detail

ContentTypeDetectingInputStreamWrapper

public ContentTypeDetectingInputStreamWrapper(InputStream source)
                                       throws IOException

Throws:

IOException

Method Detail

streamStartsWithMagicBytes

protected boolean streamStartsWithMagicBytes(byte[] bytes)

isPdf

public boolean isPdf()