Class AbstractByteArrayOutputStream<T extends AbstractByteArrayOutputStream<T>>
- Type Parameters:
- T- The AbstractByteArrayOutputStream subclass
- All Implemented Interfaces:
- Closeable,- Flushable,- AutoCloseable
- Direct Known Subclasses:
- ByteArrayOutputStream,- UnsynchronizedByteArrayOutputStream
 The data can be retrieved using toByteArray() and
 toString().
 Closing an AbstractByteArrayOutputStream has no effect. The methods in
 this class can be called after the stream has been closed without
 generating an IOException.
 
 This is the base for an alternative implementation of the
 ByteArrayOutputStream class. The original implementation
 only allocates 32 bytes at the beginning. As this class is designed for
 heavy duty it starts at 1024 bytes. In contrast to the original it doesn't
 reallocate the whole memory block but allocates additional buffers. This
 way no buffers need to be garbage collected and the contents don't have
 to be copied to the new buffer. This class is designed to behave exactly
 like the original. The only exception is the deprecated
 ByteArrayOutputStream.toString(int) method that has been
 ignored.
 
- Since:
- 2.7
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Nested Class SummaryNested ClassesModifier and TypeClassDescriptionprotected static interfaceConstructor for an InputStream subclass.
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Field SummaryFields
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Constructor SummaryConstructors
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Method SummaryModifier and TypeMethodDescriptionprotected TasThis()Returns this instance typed toT.voidclose()Does nothing.protected voidneedNewBuffer(int newCount) Makes a new buffer available either by allocating a new one or re-cycling an existing one.abstract voidreset()protected voidImplements a default reset behavior.abstract intsize()Returns the current size of the byte array.abstract byte[]Gets the current contents of this byte stream as a byte array.protected byte[]Gets the current contents of this byte stream as a byte array.abstract InputStreamGets the current contents of this byte stream as an Input Stream.protected <T extends InputStream>
 InputStreamtoInputStream(AbstractByteArrayOutputStream.InputStreamConstructor<T> isConstructor) Gets the current contents of this byte stream as an Input Stream.toString()Deprecated.Gets the current contents of this byte stream as a string using the specified encoding.Gets the current contents of this byte stream as a string using the specified encoding.voidwrite(byte[] b) Writesb.lengthbytes from the given byte array to this output stream.abstract voidwrite(byte[] b, int off, int len) abstract voidwrite(int b) abstract intwrite(InputStream in) Writes the entire contents of the specified input stream to this byte stream.write(CharSequence data, Charset charset) Writes the bytes for given CharSequence encoded using a Charset.protected voidwriteImpl(byte[] b, int off, int len) Writes the bytes to the byte array.protected voidwriteImpl(int b) Writes a byte to byte array.protected intwriteImpl(InputStream in) Writes the entire contents of the specified input stream to this byte stream.abstract voidwriteTo(OutputStream out) Writes the entire contents of this byte stream to the specified output stream.protected voidwriteToImpl(OutputStream out) Writes the entire contents of this byte stream to the specified output stream.Methods inherited from class java.io.OutputStreamflush
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Field Details- 
countThe total count of bytes written.
 
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Constructor Details- 
AbstractByteArrayOutputStreampublic AbstractByteArrayOutputStream()Constructs a new instance for subclasses.
 
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Method Details- 
asThisReturns this instance typed toT.- Returns:
- this instance
 
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closeDoes nothing. The methods in this class can be called after the stream has been closed without generating anIOException.- Specified by:
- closein interface- AutoCloseable
- Specified by:
- closein interface- Closeable
- Overrides:
- closein class- OutputStream
- Throws:
- IOException- never (this method should not declare this exception but it has to now due to backwards compatibility)
 
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needNewBufferMakes a new buffer available either by allocating a new one or re-cycling an existing one.- Parameters:
- newCount- the size of the buffer if one is created
 
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reset- See Also:
 
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resetImplImplements a default reset behavior.- See Also:
 
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sizeReturns the current size of the byte array.- Returns:
- the current size of the byte array
 
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toByteArrayGets the current contents of this byte stream as a byte array. The result is independent of this stream.- Returns:
- the current contents of this output stream, as a byte array
- See Also:
 
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toByteArrayImplGets the current contents of this byte stream as a byte array. The result is independent of this stream.- Returns:
- the current contents of this output stream, as a byte array
- See Also:
 
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toInputStreamGets the current contents of this byte stream as an Input Stream. The returned stream is backed by buffers ofthisstream, avoiding memory allocation and copy, thus saving space and time.- Returns:
- the current contents of this output stream.
- Since:
- 2.5
- See Also:
 
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toInputStreamprotected <T extends InputStream> InputStream toInputStream(AbstractByteArrayOutputStream.InputStreamConstructor<T> isConstructor) Gets the current contents of this byte stream as an Input Stream. The returned stream is backed by buffers ofthisstream, avoiding memory allocation and copy, thus saving space and time.- Type Parameters:
- T- the type of the InputStream which makes up the- SequenceInputStream.
- Parameters:
- isConstructor- A constructor for an InputStream which makes up the- SequenceInputStream.
- Returns:
- the current contents of this output stream.
- Since:
- 2.7
- See Also:
 
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toStringDeprecated.UsetoString(String)insteadGets the current contents of this byte stream as a string using the virtual machine'sdefault charset.
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toStringGets the current contents of this byte stream as a string using the specified encoding.- Parameters:
- charset- the character encoding
- Returns:
- the string converted from the byte array
- Since:
- 2.5
- See Also:
 
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toStringGets the current contents of this byte stream as a string using the specified encoding.- Parameters:
- enc- the name of the character encoding
- Returns:
- the string converted from the byte array
- Throws:
- UnsupportedEncodingException- if the encoding is not supported
- See Also:
 
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writeWritesb.lengthbytes from the given byte array to this output stream. This has same effect aswrite(b, 0, b.length).- Overrides:
- writein class- OutputStream
- Parameters:
- b- the data.
- Since:
- 2.19.0
- See Also:
 
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write- Overrides:
- writein class- OutputStream
 
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writeWrites the bytes for given CharSequence encoded using a Charset.- Parameters:
- data- The String to convert to bytes. not null.
- charset- The- Charseto encode the- String, null means the default encoding.
- Returns:
- this instance.
- Since:
- 2.19.0
 
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writeWrites the entire contents of the specified input stream to this byte stream. Bytes from the input stream are read directly into the internal buffer of this stream.- Parameters:
- in- the input stream to read from
- Returns:
- total number of bytes read from the input stream (and written to this stream)
- Throws:
- IOException- if an I/O error occurs while reading the input stream
- Since:
- 1.4
 
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write- Specified by:
- writein class- OutputStream
 
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writeImplWrites the bytes to the byte array.- Parameters:
- b- the bytes to write
- off- The start offset
- len- The number of bytes to write
 
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writeImplWrites the entire contents of the specified input stream to this byte stream. Bytes from the input stream are read directly into the internal buffer of this stream.- Parameters:
- in- the input stream to read from
- Returns:
- total number of bytes read from the input stream (and written to this stream)
- Throws:
- IOException- if an I/O error occurs while reading the input stream
- Since:
- 2.7
 
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writeImplWrites a byte to byte array.- Parameters:
- b- the byte to write
 
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writeToWrites the entire contents of this byte stream to the specified output stream.- Parameters:
- out- the output stream to write to
- Throws:
- IOException- if an I/O error occurs, such as if the stream is closed
- See Also:
 
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writeToImplWrites the entire contents of this byte stream to the specified output stream.- Parameters:
- out- the output stream to write to
- Throws:
- IOException- if an I/O error occurs, such as if the stream is closed
- See Also:
 
 
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toString(String)instead