Package org.apache.xmlgraphics.util.io
Class Base64DecodeStream
- java.lang.Object
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- java.io.InputStream
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- org.apache.xmlgraphics.util.io.Base64DecodeStream
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
public class Base64DecodeStream extends java.io.InputStream
This class implements a Base64 Character decoder as specified in RFC1113. Unlike some other encoding schemes there is nothing in this encoding that tells the decoder where a buffer starts or stops, so to use it you will need to isolate your encoded data into a single chunk and then feed them this decoder. The simplest way to do that is to read all of the encoded data into a string and then use:byte data[]; InputStream is = new ByteArrayInputStream(data); is = new Base64DecodeStream(is);
On errors, this class throws a IOException with the following detail strings:"Base64DecodeStream: Bad Padding byte (2)." "Base64DecodeStream: Bad Padding byte (1)."
- Version:
- $Id$ Originally authored by Thomas DeWeese, Vincent Hardy, and Chuck McManis.
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Constructor Summary
Constructors Constructor Description Base64DecodeStream(java.io.InputStream src)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
available()
void
close()
boolean
markSupported()
int
read()
int
read(byte[] out, int offset, int len)
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Method Detail
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markSupported
public boolean markSupported()
- Overrides:
markSupported
in classjava.io.InputStream
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close
public void close() throws java.io.IOException
- Specified by:
close
in interfacejava.lang.AutoCloseable
- Specified by:
close
in interfacejava.io.Closeable
- Overrides:
close
in classjava.io.InputStream
- Throws:
java.io.IOException
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available
public int available() throws java.io.IOException
- Overrides:
available
in classjava.io.InputStream
- Throws:
java.io.IOException
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read
public int read() throws java.io.IOException
- Specified by:
read
in classjava.io.InputStream
- Throws:
java.io.IOException
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read
public int read(byte[] out, int offset, int len) throws java.io.IOException
- Overrides:
read
in classjava.io.InputStream
- Throws:
java.io.IOException
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