/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

options {
  LOOKAHEAD = 1;
  CHOICE_AMBIGUITY_CHECK = 2;
  OTHER_AMBIGUITY_CHECK = 1;
  STATIC = false;
  DEBUG_PARSER = false;
  DEBUG_LOOKAHEAD = false;
  DEBUG_TOKEN_MANAGER = false;
  ERROR_REPORTING = true;
  JAVA_UNICODE_ESCAPE = false;
  UNICODE_INPUT = false;
  IGNORE_CASE = false;
  USER_TOKEN_MANAGER = false;
  USER_CHAR_STREAM = false;
  BUILD_PARSER = true;
  BUILD_TOKEN_MANAGER = true;
  SANITY_CHECK = true;
  BUILD_NODE_FILES = true;
  FORCE_LA_CHECK = false;
  MULTI = true;
  NODE_DEFAULT_VOID = true;
  VISITOR = true;
  NODE_CLASS= "ASTNode";
}

PARSER_BEGIN(DeployerConfigParser)

package org.apache.river.container.deployer;

import java.io.InputStream;
import java.io.Reader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;

import java.util.logging.Logger;


public class DeployerConfigParser {
	private static final Logger log=
		Logger.getLogger(DeployerConfigParser.class.getName());

    public static ASTconfig parseConfig(InputStream in)
	throws ParseException {
		Reader r=new InputStreamReader(in);
		DeployerConfigParser parser=new DeployerConfigParser(r);
                parser.config();
                return (ASTconfig) parser.jjtree.popNode();
    }

}
PARSER_END(DeployerConfigParser)

/* WHITE SPACE */

SKIP :
{
  " "
| "\t"
| "\n"
| "\r"
| "\f"
| <"//" (~["\n","\r"])* ("\n" | "\r" | "\r\n")>
| <"/*" (~["*"])* "*" ("*" | ~["*","/"] (~["*"])* "*")* "/">}

TOKEN :
{
  < INTEGER_LITERAL: ["0"-"9"] (["0"-"9"])* >
|  < FLOATING_POINT_LITERAL:
        (["0"-"9"])+ "." (["0"-"9"])* (<EXPONENT>)? (["f","F","d","D"])?
      | "." (["0"-"9"])+ (<EXPONENT>)? (["f","F","d","D"])?
      | (["0"-"9"])+ <EXPONENT> (["f","F","d","D"])?
      | (["0"-"9"])+ (<EXPONENT>)? ["f","F","d","D"]
	  | ["0"-"9"] (["0"-"9"])*
  >
|  < #EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"])+ >
|  < LONG_LITERAL: ["0"-"9"] (["0"-"9"])* (["l", "L"]) >
| 	< GRANT: "grant" >
|       < CLASSLOADER: "classloader">
|       < CODEBASE: "codebase">
|       < CONFIGURATION: "configuration">
|       < JARS: "jars">
|       < PARENT: "parent">
| 	< AND: "and" >
| 	< OR: "or" >
| 	< NOT: "not" >
| 	< TRUE: "true" >
| 	< FALSE: "false" >
|  	< SYMBOL:
		["A"-"Z", "a"-"z", "_"] 
                    (["0"-"9", "A"-"Z", "a"-"z", ".", "_", "-", "$"])*>
|	< STRING_LITERAL:
 	("\""
    (   (~["\"","\\","\n","\r"])
        | ("\\"
            ( ["n","t","b","r","f","\\","'","\""]
            | ["0"-"7"] ( ["0"-"7"] )?
            | ["0"-"3"] ["0"-"7"] ["0"-"7"]
            )
          )
      )*
      "\"" )
	| ("\'"
    	(   (~["'","\\","\n","\r"])
        | ("\\"
            ( ["n","t","b","r","f","\\","'","\""]
            | ["0"-"7"] ( ["0"-"7"] )?
            | ["0"-"3"] ["0"-"7"] ["0"-"7"]
            )
          )
      )*
      "\'") >
		{
			/* Remove the leading and trailing quotes. */
			image.deleteCharAt(image.length() -1);
			image.deleteCharAt(0);
			matchedToken.image=image.toString();
		}
|	< PLUS: "+" >
|	< MINUS: "-" >
|	< STAR: "*" >
|	< OVER: "/" >
|	< HOOK: "?" >
|	< COLON: ":" >
| 	< EQUALS: "=" >
| 	< GT: ">" >
|	< LT: "<" >
| 	< LTE: "<=" >
|	< GTE: ">=" >
|	< NEQ: "<>" >
| 	< COMMA: "," >
|       < LBRACE: "{" >
|       < RBRACE: "}" >
|       < LPAREN: "(" >
|       < RPAREN: ")" >
|       < SEMICOLON: ";">

}

void config() #config:
{
    log.fine("config()");
}
{
    (grant() | classloader() | configuration())*
}

void grant() #grant:
{
    log.fine("grant()");
}
{
    <GRANT> "{" (permission())* "}"
}

void permission() #permission:
{
    log.fine("permission()");
}
{
    symbol() [literal() [literal()]]";"
}

void classloader() #classloader:
{
    log.fine("classloader()");
}
{
    <CLASSLOADER> <LBRACE> parent() [jars()] [codebase()] <RBRACE>
}

void jars() #jars:
{ 
    log.fine("jars()");
}
{
    <JARS> <LBRACE> classpath() <RBRACE>
}

void parent() #parent:
{
    log.fine("parent()");
}
{
    <PARENT> symbol() <SEMICOLON>
}

void codebase() #codebase:
{
    log.fine("codebase()");
}
{
    <CODEBASE> <LBRACE> symbol() (<COMMA> symbol())* <RBRACE>
}

void configuration() #configuration:
{
    log.fine("configuration()");
}
{
    <CONFIGURATION> <LBRACE> (configEntry())* <RBRACE>
}

void classpath() #classpath:
{
    log.fine("classpath()");
}
{
    cpEntry() (<COMMA> cpEntry() )*
}

void cpEntry() #cpEntry:
{
    log.fine("cpEntry()");
}
{
    symbol() [ <LPAREN> filterExpression() <RPAREN>]
}

void filterExpression():
{
    log.finest("filterExpression()");
}
{
    filterClause() ( <COMMA> filterClause())*
}

void filterClause():
{
    log.finest("filterClause()");
}
{
    symbol() | literal()
}

void configEntry() #configEntry:
{
    log.fine("configEntry()");
}
{
    symbol() <EQUALS> symbol() <SEMICOLON>
}

void primary() :
{
	log.fine("primary()");
	String t=null;
}
{
	literal()
	| "(" expression() ")"
}

void literal() #literal:
{
	Token t=null;
	log.fine("literal");
}
{
   	t=<INTEGER_LITERAL> {
                log.fine("integer literal " + t.image);
                jjtThis.setValue(new Integer(t.image));
	}
        |
   	t=<FLOATING_POINT_LITERAL> {
                log.fine("floating-point literal " + t.image);
                jjtThis.setValue(Float.parseFloat(t.image));
	}
	|
   	t=<LONG_LITERAL> {
                log.fine("long literal " + t.image);
                jjtThis.setValue(Long.parseLong(t.image));
	}
	|
	t=<STRING_LITERAL>  { 
                jjtThis.setValue(t.image);
        }
	|
	t=<TRUE>   { 
                jjtThis.setValue(true);
        }
	|
	t=<FALSE>  {
                jjtThis.setValue(false);
        }
}

void symbol() #symbol:
{
        log.fine("symbol()");
        Token t=null;
}
{
        t=<SYMBOL> {
            jjtThis.setValue(t.image);
        }
}

void expression() :
{
	log.fine("expression()");
}
{
	booleanExpression() choiceTerm()
}

void additiveExpression() :
{
	log.fine("additiveExpression()");
}
{
	additiveTerm() additiveList()
}

void booleanExpression():
{
	log.fine("booleanExpression()");
}
{
	booleanTerm() booleanList()
}

void booleanTerm():
{
	log.fine("booleanTerm()");
}
{
	<NOT> conditionalExpression() #booleanNot(1)
	| conditionalExpression()
}

void booleanList():
{
	log.fine("booleanList()");
}
{
	(
		<AND> booleanTerm() #booleanAnd(2)
		| <OR> booleanTerm() #booleanOr(2)
	) *
}

void conditionalExpression():
{
	log.fine("conditionalExpression()");
}
{
	additiveExpression() conditionalList()
}

void conditionalList() :
{
	log.fine("conditionalList()");
}
{
	(
		<EQUALS> additiveExpression() #equals(2)
		| <LT> additiveExpression() #lessThan(2)
		| <GT> additiveExpression() #greaterThan(2)
		| <LTE> additiveExpression() #lessThanOrEqual(2)
		| <GTE> additiveExpression() #greaterThanOrEqual(2)
		| <NEQ> additiveExpression() #notEqual(2)
	) ?
}

void choiceTerm() :
{
}
{
	( <HOOK> expression() <COLON> expression() #choice(3)
	 )?
}

void additiveList() :
{
	log.fine("additiveList()");
}
{
	(
		<PLUS> additiveTerm() #plus(2)
		| <MINUS> additiveTerm() #minus(2)
	) *
}

void additiveTerm():
{
	log.fine("additiveTerm()");
}
{
	multiplicativeTerm() multiplicativeList()
}

void multiplicativeTerm():
{
	log.fine("multiplicativeTerm()");
}
{
	primary()
}

void multiplicativeList() :
{
	log.fine("multiplicativeList()");
}
{
	(
		<STAR> multiplicativeTerm() #multiply(2)
		| <OVER> multiplicativeTerm() #divide(2)
	) *
}