Package com.fasterxml.aalto.in
Class AttributeCollector
java.lang.Object
com.fasterxml.aalto.in.AttributeCollector
Object used by the tokenizer to collect and store information
about attributes, specifically, names and values.
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate String
Concatenated String that contains all the attribute values for the element.private int
Number of attributes currently held by this collector.protected int[]
Int-based compact data structure that contains mapping from attribute names to attribute indexes in the main attribute name array.(package private) final ReaderConfig
private String
For some errors, we'll have to temporarily store error message, to be thrown at a later point.protected int
Size of hash area in_attrMap
; generally at least 20% more than number of attributes (_attrCount
).private PName[]
private boolean
Flag used to indicate that all attribute values for an element have been parsed, and that next call tostartNewValue
should reset the value structuresprotected int
Pointer to int slot right after last spill entry, in_attrMap
array.private char[]
Consequtive character array, in which attribute values are concatenated inprivate int[]
Array that contains ending offsets of the values in the shared buffer.private static final int
The default length of the value buffer is also chosen more to minimize overhead than to eliminate all need for resizing.private static final int
Let's guess that most of the time there won't be more than 12 attributes.private static final int
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprivate final boolean
checkExpand
(org.codehaus.stax2.typed.TypedArrayDecoder tad) Internal method used to see if we can expand the buffer that the array decoder has.char[]
byte[]
decodeBinaryValue
(int index, org.codehaus.stax2.typed.Base64Variant v, org.codehaus.stax2.ri.typed.CharArrayBase64Decoder dec, XmlScanner scanner) final void
decodeValue
(int index, org.codehaus.stax2.typed.TypedValueDecoder dec) final int
decodeValues
(int index, org.codehaus.stax2.typed.TypedArrayDecoder dec, XmlScanner scanner) private final int
decodeValues
(org.codehaus.stax2.typed.TypedArrayDecoder dec, char[] buf, int ptr, int end, XmlScanner scanner) int
final int
finishLastValue
(int endingOffset) Method called after all attribute entries have been parsed, and thus the end of the last value in the buffer is known.final int
final int
getCount()
final PName
getName
(int index) final QName
getQName
(int index) getValue
(int index) private static final boolean
isSpace
(char c) private void
noteDupAttr
(int ix1, int ix2) char[]
startNewValue
(PName attrName, int currOffset) Method called by the parser right after attribute name has been parsed, but before value has been parsed.char[]
Method called by the owner, when the
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Field Details
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INT_SPACE
private static final int INT_SPACE- See Also:
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DEFAULT_ENTRY_COUNT
private static final int DEFAULT_ENTRY_COUNTLet's guess that most of the time there won't be more than 12 attributes. Since the underlying buffer will be expanded as necessary, exact value is chosen to minimize overhead rather than eliminate any resizing.- See Also:
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DEFAULT_BUFFER_LENGTH
private static final int DEFAULT_BUFFER_LENGTHThe default length of the value buffer is also chosen more to minimize overhead than to eliminate all need for resizing.- See Also:
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_config
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_attrCount
private int _attrCountNumber of attributes currently held by this collector. -
_names
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_valueBuffer
private char[] _valueBufferConsequtive character array, in which attribute values are concatenated in -
_attrMap
protected int[] _attrMapInt-based compact data structure that contains mapping from attribute names to attribute indexes in the main attribute name array.Data structure contains two separate areas; main hash area (with size
_hashAreaSize
), and remaining spillover area that follows hash area up until (but not including)_spillAreaEnd
index. Main hash area only contains indexes (index+1; 0 signifying empty slot) to actual attributes; spillover area has both hash and index for any spilled entry. Spilled entries are simply stored in order added, and need to be searched using linear search. In case of both primary hash hits and spills, eventual comparison with the local name needs to be done with actual name array. -
_hashAreaSize
protected int _hashAreaSizeSize of hash area in_attrMap
; generally at least 20% more than number of attributes (_attrCount
). -
_spillAreaEnd
protected int _spillAreaEndPointer to int slot right after last spill entry, in_attrMap
array. -
_valueOffsets
private int[] _valueOffsetsArray that contains ending offsets of the values in the shared buffer. Entries contain character offset after the end of the matching offset; so entry 0 for example contains starting offset of the entry 1. -
_needToResetValues
private boolean _needToResetValuesFlag used to indicate that all attribute values for an element have been parsed, and that next call tostartNewValue
should reset the value structures -
_errorMsg
For some errors, we'll have to temporarily store error message, to be thrown at a later point. -
_allAttrValues
Concatenated String that contains all the attribute values for the element. Allows some buffer reuse, and should result in slight speed optimization, for elements with lots of attributes that are usually all (or none) accessed.
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Constructor Details
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AttributeCollector
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Method Details
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startNewValue
Method called by the parser right after attribute name has been parsed, but before value has been parsed.- Returns:
- Underlying character buffer to use for storing attribute value characters
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continueValue
public char[] continueValue() -
finishLastValue
public final int finishLastValue(int endingOffset) Method called after all attribute entries have been parsed, and thus the end of the last value in the buffer is known.- Returns:
- Number of attributes collected
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finishLastValue2
public final int finishLastValue2() -
valueBufferFull
public char[] valueBufferFull()Method called by the owner, when the -
getCount
public final int getCount() -
getName
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getQName
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getValue
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getValue
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findIndex
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getErrorMsg
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decodeValue
public final void decodeValue(int index, org.codehaus.stax2.typed.TypedValueDecoder dec) throws IllegalArgumentException - Throws:
IllegalArgumentException
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decodeValues
public final int decodeValues(int index, org.codehaus.stax2.typed.TypedArrayDecoder dec, XmlScanner scanner) throws XMLStreamException - Throws:
XMLStreamException
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decodeValues
private final int decodeValues(org.codehaus.stax2.typed.TypedArrayDecoder dec, char[] buf, int ptr, int end, XmlScanner scanner) throws XMLStreamException - Throws:
XMLStreamException
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decodeBinaryValue
public byte[] decodeBinaryValue(int index, org.codehaus.stax2.typed.Base64Variant v, org.codehaus.stax2.ri.typed.CharArrayBase64Decoder dec, XmlScanner scanner) throws XMLStreamException - Throws:
XMLStreamException
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isSpace
private static final boolean isSpace(char c) -
checkExpand
private final boolean checkExpand(org.codehaus.stax2.typed.TypedArrayDecoder tad) Internal method used to see if we can expand the buffer that the array decoder has. Bit messy, but simpler than having separately typed instances; and called rarely so that performance downside of instanceof is irrelevant. -
noteDupAttr
private void noteDupAttr(int ix1, int ix2)
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