Package org.glassfish.json
Class JsonParserImpl
- java.lang.Object
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- org.glassfish.json.JsonParserImpl
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- All Implemented Interfaces:
java.io.Closeable
,java.lang.AutoCloseable
,JsonParser
public class JsonParserImpl extends java.lang.Object implements JsonParser
JSON parser implementation. NoneContext, ArrayContext, ObjectContext is used to go to next parser state.
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Nested Class Summary
Nested Classes Modifier and Type Class Description private class
JsonParserImpl.ArrayContext
private class
JsonParserImpl.Context
private class
JsonParserImpl.NoneContext
private class
JsonParserImpl.ObjectContext
private static class
JsonParserImpl.Stack
private class
JsonParserImpl.StateIterator
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Nested classes/interfaces inherited from interface javax.json.stream.JsonParser
JsonParser.Event
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Field Summary
Fields Modifier and Type Field Description private JsonParserImpl.Context
currentContext
private JsonParser.Event
currentEvent
private JsonParserImpl.Stack
stack
private JsonParserImpl.StateIterator
stateIterator
private JsonTokenizer
tokenizer
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Constructor Summary
Constructors Constructor Description JsonParserImpl(java.io.InputStream in, java.nio.charset.Charset encoding, BufferPool bufferPool)
JsonParserImpl(java.io.InputStream in, BufferPool bufferPool)
JsonParserImpl(java.io.Reader reader, BufferPool bufferPool)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
close()
Closes this parser and frees any resources associated with the parser.java.math.BigDecimal
getBigDecimal()
Returns a JSON number as aBigDecimal
.int
getInt()
Returns a JSON number as an integer.JsonLocation
getLastCharLocation()
JsonLocation
getLocation()
Return the location that corresponds to the parser's current state in the JSON input source.long
getLong()
Returns a JSON number as a long.java.lang.String
getString()
Returns aString
for the name in a name/value pair, for a string value or a number value.boolean
hasNext()
Returnstrue
if there are more parsing states.(package private) boolean
isDefinitelyInt()
boolean
isIntegralNumber()
Returns true if the JSON number at the current parser state is a integral number.JsonParser.Event
next()
Returns the event for the next parsing state.private JsonParsingException
parsingException(JsonTokenizer.JsonToken token, java.lang.String expectedTokens)
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Field Detail
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currentContext
private JsonParserImpl.Context currentContext
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currentEvent
private JsonParser.Event currentEvent
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stack
private final JsonParserImpl.Stack stack
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stateIterator
private final JsonParserImpl.StateIterator stateIterator
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tokenizer
private final JsonTokenizer tokenizer
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Constructor Detail
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JsonParserImpl
public JsonParserImpl(java.io.Reader reader, BufferPool bufferPool)
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JsonParserImpl
public JsonParserImpl(java.io.InputStream in, BufferPool bufferPool)
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JsonParserImpl
public JsonParserImpl(java.io.InputStream in, java.nio.charset.Charset encoding, BufferPool bufferPool)
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Method Detail
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getString
public java.lang.String getString()
Description copied from interface:JsonParser
Returns aString
for the name in a name/value pair, for a string value or a number value. This method should only be called when the parser state isJsonParser.Event.KEY_NAME
,JsonParser.Event.VALUE_STRING
, orJsonParser.Event.VALUE_NUMBER
.- Specified by:
getString
in interfaceJsonParser
- Returns:
- a name when the parser state is
JsonParser.Event.KEY_NAME
a string value when the parser state isJsonParser.Event.VALUE_STRING
a number value when the parser state isJsonParser.Event.VALUE_NUMBER
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isIntegralNumber
public boolean isIntegralNumber()
Description copied from interface:JsonParser
Returns true if the JSON number at the current parser state is a integral number. ABigDecimal
may be used to store the value internally and this method semantics are defined using itsscale()
. If the scale is zero, then it is considered integral type. This integral type information can be used to invoke an appropriate accessor method to obtain a numeric value as in the following example:JsonParser parser = ... if (parser.isIntegralNumber()) { parser.getInt(); // or other methods to get integral value } else { parser.getBigDecimal(); }
- Specified by:
isIntegralNumber
in interfaceJsonParser
- Returns:
- true if this number is a integral number, otherwise false
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getInt
public int getInt()
Description copied from interface:JsonParser
Returns a JSON number as an integer. The returned value is equal tonew BigDecimal(getString()).intValue()
. Note that this conversion can lose information about the overall magnitude and precision of the number value as well as return a result with the opposite sign. This method should only be called when the parser state isJsonParser.Event.VALUE_NUMBER
.- Specified by:
getInt
in interfaceJsonParser
- Returns:
- an integer for a JSON number
- See Also:
BigDecimal.intValue()
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isDefinitelyInt
boolean isDefinitelyInt()
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getLong
public long getLong()
Description copied from interface:JsonParser
Returns a JSON number as a long. The returned value is equal tonew BigDecimal(getString()).longValue()
. Note that this conversion can lose information about the overall magnitude and precision of the number value as well as return a result with the opposite sign. This method is only called when the parser state isJsonParser.Event.VALUE_NUMBER
.- Specified by:
getLong
in interfaceJsonParser
- Returns:
- a long for a JSON number
- See Also:
BigDecimal.longValue()
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getBigDecimal
public java.math.BigDecimal getBigDecimal()
Description copied from interface:JsonParser
Returns a JSON number as aBigDecimal
. TheBigDecimal
is created usingnew BigDecimal(getString())
. This method should only called when the parser state isJsonParser.Event.VALUE_NUMBER
.- Specified by:
getBigDecimal
in interfaceJsonParser
- Returns:
- a
BigDecimal
for a JSON number
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getLocation
public JsonLocation getLocation()
Description copied from interface:JsonParser
Return the location that corresponds to the parser's current state in the JSON input source. The location information is only valid in the current parser state (or until the parser is advanced to a next state).- Specified by:
getLocation
in interfaceJsonParser
- Returns:
- a non-null location corresponding to the current parser state in JSON input source
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getLastCharLocation
public JsonLocation getLastCharLocation()
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hasNext
public boolean hasNext()
Description copied from interface:JsonParser
Returnstrue
if there are more parsing states. This method returnsfalse
if the parser reaches the end of the JSON text.- Specified by:
hasNext
in interfaceJsonParser
- Returns:
true
if there are more parsing states.
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next
public JsonParser.Event next()
Description copied from interface:JsonParser
Returns the event for the next parsing state.- Specified by:
next
in interfaceJsonParser
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close
public void close()
Description copied from interface:JsonParser
Closes this parser and frees any resources associated with the parser. This method closes the underlying input source.- Specified by:
close
in interfacejava.lang.AutoCloseable
- Specified by:
close
in interfacejava.io.Closeable
- Specified by:
close
in interfaceJsonParser
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parsingException
private JsonParsingException parsingException(JsonTokenizer.JsonToken token, java.lang.String expectedTokens)
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