net.jini.config

Class ConfigurationFile.Parser

java.lang.Object

net.jini.config.ConfigurationFile.Parser

Enclosing class:

ConfigurationFile

private class ConfigurationFile.Parser
extends Object

Parses the input from the specified Reader and options, storing information about imports and entries by side effect.

Field Summary

Fields

Modifier and Type	Field and Description
private StreamTokenizer	st The tokenizer to use for parsing

Constructor Summary

Constructors

Constructor and Description
Parser(Reader reader, String[] options) Adds the imports and entries parsed from the specified input stream, as well as overrides parsed from the specified options, starting with the second element.

Method Summary

Modifier and Type	Method and Description
private void	createTokenizer(Reader reader) Creates and sets the tokenizer using the specified reader.
private String	describeCurrentToken() Returns a String that describes the current token.
private ConfigurationFile.Literal	getNumber(String val) Parses a numeric literal and returns the value as a Literal.
private void	oops(String what) Throws a ConfigurationException for an error described by the what argument.
private ConfigurationFile.ParseNode[]	parseArgs(ConfigurationFile.Entry inEntry, char close) Parses an ExprList and the trailing token specified by close.
private void	parseComponent(String component) Parses a Component.
private void	parseEntry(String component, String name) Parses an Entry.
(package private) ConfigurationFile.ParseNode	parseExpr(ConfigurationFile.Entry inEntry) Parses a string concatenation
private void	parseImport() Parses an Import, updating classImports and onDemandImports.
private ConfigurationFile.MethodCall	parseMethodCall(ConfigurationFile.Entry inEntry, String name) Resolves a static method call and returns a MethodCall instance that describes the method and arguments for the call.
private ConfigurationFile.ParseNode	parseNewInstance(ConfigurationFile.Entry inEntry) Parses a NewExpr except for the leading "new", and returns the constructed object.
private void	parseOverride() Parses an Override .
private void	parseSource() Parses imports and components from the source, and stores the results.
(package private) ConfigurationFile.ParseNode	parseSubExpr(ConfigurationFile.Entry inEntry) Parses an Expr.
private void	syntax(String what) Throws a ConfigurationException for a syntax error described by the what argument.
private void	token(char c) Parses the next token from the stream, and generates a syntax error if the token does not equal the specified character.
private String	token(String what) Parses the next token from the stream, and generates a syntax error if the token is not a TT_WORD.

Methods inherited from class java.lang.Object

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

Field Detail

st

private StreamTokenizer st

The tokenizer to use for parsing

Constructor Detail

Parser

Parser(Reader reader,
       String[] options)
throws ConfigurationException

Adds the imports and entries parsed from the specified input stream, as well as overrides parsed from the specified options, starting with the second element.

Throws:

ConfigurationException

Method Detail

createTokenizer

private void createTokenizer(Reader reader)

Creates and sets the tokenizer using the specified reader.

parseSource

private void parseSource()
                  throws ConfigurationException,
                         IOException

Parses imports and components from the source, and stores the results.

Throws:

ConfigurationException

IOException

parseImport

private void parseImport()
                  throws ConfigurationException,
                         IOException

Parses an Import, updating classImports and onDemandImports.

Throws:

ConfigurationException

IOException

parseComponent

private void parseComponent(String component)
                     throws ConfigurationException,
                            IOException

Parses a Component.

Throws:

ConfigurationException

IOException

parseEntry

private void parseEntry(String component,
                        String name)
                 throws ConfigurationException,
                        IOException

Parses an Entry.

Throws:

ConfigurationException

IOException

parseOverride

private void parseOverride()
                    throws ConfigurationException,
                           IOException

Parses an Override .

Throws:

ConfigurationException

IOException

parseArgs

private ConfigurationFile.ParseNode[] parseArgs(ConfigurationFile.Entry inEntry,
                                                char close)
                                         throws ConfigurationException,
                                                IOException

Parses an ExprList and the trailing token specified by close.

Throws:

ConfigurationException

IOException

parseExpr

ConfigurationFile.ParseNode parseExpr(ConfigurationFile.Entry inEntry)
                               throws ConfigurationException,
                                      IOException

Parses a string concatenation

Throws:

ConfigurationException

IOException

parseSubExpr

ConfigurationFile.ParseNode parseSubExpr(ConfigurationFile.Entry inEntry)
                                  throws ConfigurationException,
                                         IOException

Parses an Expr.

Throws:

ConfigurationException

IOException

getNumber

private ConfigurationFile.Literal getNumber(String val)
                                     throws ConfigurationException,
                                            IOException

Parses a numeric literal and returns the value as a Literal.

Throws:

ConfigurationException

IOException

parseNewInstance

private ConfigurationFile.ParseNode parseNewInstance(ConfigurationFile.Entry inEntry)
                                              throws ConfigurationException,
                                                     IOException

Parses a NewExpr except for the leading "new", and returns the constructed object.

Throws:

ConfigurationException

IOException

parseMethodCall

private ConfigurationFile.MethodCall parseMethodCall(ConfigurationFile.Entry inEntry,
                                                     String name)
                                              throws ConfigurationException,
                                                     IOException

Resolves a static method call and returns a MethodCall instance that describes the method and arguments for the call.

Throws:

ConfigurationException

IOException

token

private void token(char c)
            throws ConfigurationException,
                   IOException

Parses the next token from the stream, and generates a syntax error if the token does not equal the specified character. Expands references to system properties if the token is a String.

Throws:

ConfigurationException

IOException

token

private String token(String what)
              throws ConfigurationException,
                     IOException

Parses the next token from the stream, and generates a syntax error if the token is not a TT_WORD. The what argument describes what kind of token is expected. Combines multiple TT_WORD tokens if they are separated by '.' at the boundaries and are not reserved words.

Throws:

ConfigurationException

IOException

syntax

private void syntax(String what)
             throws ConfigurationException

Throws a ConfigurationException for a syntax error described by the what argument.

Throws:

ConfigurationException

describeCurrentToken

private String describeCurrentToken()

Returns a String that describes the current token.

oops

private void oops(String what)
           throws ConfigurationException

Throws a ConfigurationException for an error described by the what argument.

Throws:

ConfigurationException