Module kala.compress.compressors.pack200

Package kala.compress.harmony.unpack200

Class NewAttributeBands

java.lang.Object

kala.compress.harmony.unpack200.BandSet

kala.compress.harmony.unpack200.NewAttributeBands

public class NewAttributeBands
extends BandSet

Sets of bands relating to a non-predefined attribute

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static interface	NewAttributeBands.AttributeLayoutElement	An AttributeLayoutElement is a part of an attribute layout and has one or more bands associated with it, which transmit the AttributeElement data for successive Attributes of this type.
class	NewAttributeBands.Call
static class	NewAttributeBands.Callable
class	NewAttributeBands.Integral
private static class	NewAttributeBands.LayoutElement
class	NewAttributeBands.Reference	Constant Pool Reference
class	NewAttributeBands.Replication	A replication is an array of layout elements, with an associated count
class	NewAttributeBands.Union	A Union is a type of layout element where the tag value acts as a selector for one of the union cases
class	NewAttributeBands.UnionCase	A Union case

Field Summary

Fields

Modifier and Type	Field	Description
private final AttributeLayout	attributeLayout
protected List<NewAttributeBands.AttributeLayoutElement>	attributeLayoutElements
private int	backwardsCallCount

Fields inherited from class kala.compress.harmony.unpack200.BandSet

header, segment

Constructor Summary

Constructors

Constructor	Description
NewAttributeBands(Segment segment, AttributeLayout attributeLayout)

Method Summary

Modifier and Type	Method	Description
int	getBackwardsCallCount()
BHSDCodec	getCodec(String layoutElement)	Returns the BHSDCodec that should be used for the given layout element.
private Attribute	getOneAttribute(int index, List<NewAttributeBands.AttributeLayoutElement> elements)	Gets one attribute at the given index from the various bands.
private StringReader	getStreamUpToMatchingBracket(StringReader stream)	Utility method to get the contents of the given stream, up to the next ], (ignoring pairs of brackets [ and ])
List<Attribute>	parseAttributes(InputStream in, int occurrenceCount)	Parse the bands relating to this AttributeLayout and return the correct class file attributes as a List of Attribute.
private void	parseLayout()	Tokenize the layout into AttributeElements
void	read(InputStream in)
private List<NewAttributeBands.LayoutElement>	readBody(StringReader stream)	Read a 'body' section of the layout from the given stream
private NewAttributeBands.AttributeLayoutElement	readNextAttributeElement(StringReader stream)
private NewAttributeBands.LayoutElement	readNextLayoutElement(StringReader stream)
private NewAttributeBands.UnionCase	readNextUnionCase(StringReader stream)	Read a UnionCase from the stream.
private Integer	readNumber(StringReader stream)	Read a number from the stream and return it
private String	readUpToMatchingBracket(StringReader stream)	Gets the contents of the given stream, up to the next ], (ignoring pairs of brackets [ and ])
private void	resolveCalls()	Resolve calls in the attribute layout and returns the number of backwards calls
private int	resolveCallsForElement(int i, NewAttributeBands.Callable currentCallable, NewAttributeBands.LayoutElement layoutElement)
void	setBackwardsCalls(int[] backwardsCalls)	Once the attribute bands have been read the callables can be informed about the number of times each is subject to a backwards call.
void	unpack()

Methods inherited from class kala.compress.harmony.unpack200.BandSet

decodeBandInt, decodeBandInt, getReferences, getReferences, parseCPClassReferences, parseCPDescriptorReferences, parseCPDoubleReferences, parseCPFieldRefReferences, parseCPFloatReferences, parseCPInterfaceMethodRefReferences, parseCPIntReferences, parseCPLongReferences, parseCPMethodRefReferences, parseCPSignatureReferences, parseCPSignatureReferences, parseCPStringReferences, parseCPUTF8References, parseCPUTF8References, parseFlags, parseFlags, parseFlags, parseFlags, parseReferences, parseReferences, unpack

Methods inherited from class java.lang.Object

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

Field Details

attributeLayout

private final AttributeLayout attributeLayout

backwardsCallCount

private int backwardsCallCount

attributeLayoutElements

protected List<NewAttributeBands.AttributeLayoutElement> attributeLayoutElements

Constructor Details

NewAttributeBands

public NewAttributeBands(Segment segment,
 AttributeLayout attributeLayout)
                  throws IOException

Throws:

IOException

Method Details

getBackwardsCallCount

public int getBackwardsCallCount()

getCodec

public BHSDCodec getCodec(String layoutElement)

Returns the BHSDCodec that should be used for the given layout element.

Parameters:

layoutElement - TODO

Returns:

the BHSDCodec that should be used for the given layout element.

getOneAttribute

private Attribute getOneAttribute(int index,
 List<NewAttributeBands.AttributeLayoutElement> elements)

Gets one attribute at the given index from the various bands. The correct bands must have already been read in.

Parameters:

index - TODO

elements - TODO

Returns:

attribute at the given index.

getStreamUpToMatchingBracket

private StringReader getStreamUpToMatchingBracket(StringReader stream)
                                           throws IOException

Utility method to get the contents of the given stream, up to the next ], (ignoring pairs of brackets [ and ])

Parameters:

stream -

Returns:

Throws:

IOException - If an I/O error occurs.

parseAttributes

public List<Attribute> parseAttributes(InputStream in,
 int occurrenceCount)
                                throws IOException,
Pack200Exception

Parse the bands relating to this AttributeLayout and return the correct class file attributes as a List of Attribute.

Parameters:

in - parse source.

occurrenceCount - TODO

Returns:

Class file attributes as a List of Attribute.

Throws:

IOException - If an I/O error occurs.

Pack200Exception - TODO

parseLayout

private void parseLayout()
                  throws IOException

Tokenize the layout into AttributeElements

Throws:

IOException - If an I/O error occurs.

read

public void read(InputStream in)
          throws IOException,
Pack200Exception

Specified by:

read in class BandSet

Throws:

IOException

Pack200Exception

readBody

private List<NewAttributeBands.LayoutElement> readBody(StringReader stream)
                                                throws IOException

Read a 'body' section of the layout from the given stream

Parameters:

stream -

Returns:

List of LayoutElements

Throws:

IOException - If an I/O error occurs.

readNextAttributeElement

private NewAttributeBands.AttributeLayoutElement readNextAttributeElement(StringReader stream)
                                                                   throws IOException

Throws:

IOException

readNextLayoutElement

private NewAttributeBands.LayoutElement readNextLayoutElement(StringReader stream)
                                                       throws IOException

Throws:

IOException

readNextUnionCase

private NewAttributeBands.UnionCase readNextUnionCase(StringReader stream)
                                               throws IOException

Read a UnionCase from the stream.

Parameters:

stream - source stream.

Returns:

A UnionCase from the stream.

Throws:

IOException - If an I/O error occurs.

readNumber

private Integer readNumber(StringReader stream)
                    throws IOException

Read a number from the stream and return it

Parameters:

stream -

Returns:

Throws:

IOException - If an I/O error occurs.

readUpToMatchingBracket

private String readUpToMatchingBracket(StringReader stream)
                                throws IOException

Gets the contents of the given stream, up to the next ], (ignoring pairs of brackets [ and ])

Parameters:

stream - input stream.

Returns:

the contents of the given stream.

Throws:

IOException - If an I/O error occurs.

resolveCalls

private void resolveCalls()

Resolve calls in the attribute layout and returns the number of backwards calls

resolveCallsForElement

private int resolveCallsForElement(int i,
 NewAttributeBands.Callable currentCallable,
 NewAttributeBands.LayoutElement layoutElement)

setBackwardsCalls

public void setBackwardsCalls(int[] backwardsCalls)
                       throws IOException

Once the attribute bands have been read the callables can be informed about the number of times each is subject to a backwards call. This method is used to set this information.

Parameters:

backwardsCalls - one int for each backwards callable, which contains the number of times that callable is subject to a backwards call.

Throws:

IOException - If an I/O error occurs.

unpack

public void unpack()
            throws IOException,
Pack200Exception

Specified by:

unpack in class BandSet

Throws:

IOException

Pack200Exception