public void parse( String ldapFilter )
{
// reset state
filterStack = new Stack<LdapFilter>();
scanner.reset( ldapFilter );
model = new LdapFilter();
// handle error tokens before filter
LdapFilterToken token = scanner.nextToken();
while ( token.getType() != LdapFilterToken.LPAR && token.getType() != LdapFilterToken.EOF )
{
handleError( false, token, model );
token = scanner.nextToken();
}
// check filter start
if ( token.getType() == LdapFilterToken.LPAR )
{
// start top level filter
model.setStartToken( token );
filterStack.push( model );
// loop till filter end or EOF
do
{
// next token
token = scanner.nextToken();
switch ( token.getType() )
{
case LdapFilterToken.LPAR:
{
LdapFilter newFilter = new LdapFilter();
newFilter.setStartToken( token );
LdapFilter currentFilter = filterStack.peek();
LdapFilterComponent filterComponent = currentFilter.getFilterComponent();
if ( filterComponent != null && filterComponent.addFilter( newFilter ) )
{
filterStack.push( newFilter );
}
else
{
currentFilter.addOtherToken( token );
}
break;
}
case LdapFilterToken.RPAR:
{
LdapFilter currentFilter = filterStack.pop();
handleError( currentFilter.setStopToken( token ), token, currentFilter );
/*
* if(!filterStack.isEmpty()) { LdapFilter parentFilter =
* (LdapFilter) filterStack.peek(); LdapFilterComponent
* filterComponent = parentFilter.getFilterComponent();
* filterComponent.addFilter(currentFilter); }
*/
break;
}
case LdapFilterToken.AND:
{
LdapFilter currentFilter = filterStack.peek();
LdapAndFilterComponent filterComponent = new LdapAndFilterComponent( currentFilter );
filterComponent.setStartToken( token );
handleError( currentFilter.setFilterComponent( filterComponent ), token, currentFilter );
break;
}
case LdapFilterToken.OR:
{
LdapFilter currentFilter = filterStack.peek();
LdapOrFilterComponent filterComponent = new LdapOrFilterComponent( currentFilter );
filterComponent.setStartToken( token );
handleError( currentFilter.setFilterComponent( filterComponent ), token, currentFilter );
break;
}
case LdapFilterToken.NOT:
{
LdapFilter currentFilter = filterStack.peek();
LdapNotFilterComponent filterComponent = new LdapNotFilterComponent( currentFilter );
filterComponent.setStartToken( token );
handleError( currentFilter.setFilterComponent( filterComponent ), token, currentFilter );
break;
}
case LdapFilterToken.ATTRIBUTE:
{
LdapFilter currentFilter = filterStack.peek();
LdapFilterItemComponent filterComponent = new LdapFilterItemComponent( currentFilter );
filterComponent.setAttributeToken( token );
handleError( currentFilter.setFilterComponent( filterComponent ), token, currentFilter );
break;
}
case LdapFilterToken.VALUE:
{
LdapFilter currentFilter = filterStack.peek();
LdapFilterComponent filterComponent = currentFilter.getFilterComponent();
if( filterComponent instanceof LdapFilterItemComponent )
{
handleError( ( filterComponent instanceof LdapFilterItemComponent )
&& ( ( LdapFilterItemComponent ) filterComponent ).setValueToken( token ), token,
currentFilter );
}
else if( filterComponent instanceof LdapFilterExtensibleComponent )
{
handleError( ( filterComponent instanceof LdapFilterExtensibleComponent )
&& ( ( LdapFilterExtensibleComponent ) filterComponent ).setValueToken( token ), token,
currentFilter );
}
else {
handleError( false, token, currentFilter );
}
break;
}
case LdapFilterToken.EQUAL:
case LdapFilterToken.GREATER:
case LdapFilterToken.LESS:
case LdapFilterToken.APROX:
case LdapFilterToken.PRESENT:
{
LdapFilter currentFilter = filterStack.peek();
LdapFilterComponent filterComponent = currentFilter.getFilterComponent();
if( filterComponent instanceof LdapFilterItemComponent )
{
handleError( ( filterComponent instanceof LdapFilterItemComponent )
&& ( ( LdapFilterItemComponent ) filterComponent ).setFiltertypeToken( token ), token,
currentFilter );
}
else if( filterComponent instanceof LdapFilterExtensibleComponent )
{
handleError( ( filterComponent instanceof LdapFilterExtensibleComponent )
&& ( ( LdapFilterExtensibleComponent ) filterComponent ).setEqualsToken( token ), token,
currentFilter );
}
else {
handleError( false, token, currentFilter );
}
break;
}
case LdapFilterToken.WHITESPACE:
{
LdapFilter currentFilter = filterStack.peek();
currentFilter.addOtherToken( token );
break;
}
case LdapFilterToken.EXTENSIBLE_ATTRIBUTE:
{
LdapFilter currentFilter = ( LdapFilter ) filterStack.peek();
LdapFilterExtensibleComponent filterComponent = new LdapFilterExtensibleComponent( currentFilter );
filterComponent.setAttributeToken( token );
handleError( currentFilter.setFilterComponent( filterComponent ), token, currentFilter );
break;
}
case LdapFilterToken.EXTENSIBLE_DNATTR_COLON:
{
LdapFilter currentFilter = ( LdapFilter ) filterStack.peek();
LdapFilterComponent filterComponent = currentFilter.getFilterComponent();
if( filterComponent == null )
{
filterComponent = new LdapFilterExtensibleComponent( currentFilter );
(( LdapFilterExtensibleComponent ) filterComponent ).setDnAttrColonToken( token );
handleError( currentFilter.setFilterComponent( filterComponent ), token, currentFilter );
}
else
{
handleError( ( filterComponent instanceof LdapFilterExtensibleComponent )
&& ( ( LdapFilterExtensibleComponent ) filterComponent ).setDnAttrColonToken( token ), token,
currentFilter );
}
break;
}
case LdapFilterToken.EXTENSIBLE_DNATTR:
{
LdapFilter currentFilter = ( LdapFilter ) filterStack.peek();
LdapFilterComponent filterComponent = currentFilter.getFilterComponent();
handleError( ( filterComponent instanceof LdapFilterExtensibleComponent )
&& ( ( LdapFilterExtensibleComponent ) filterComponent ).setDnAttrToken( token ), token,
currentFilter );
break;
}
case LdapFilterToken.EXTENSIBLE_MATCHINGRULEOID_COLON:
{
LdapFilter currentFilter = ( LdapFilter ) filterStack.peek();
LdapFilterComponent filterComponent = currentFilter.getFilterComponent();
if( filterComponent == null )
{
filterComponent = new LdapFilterExtensibleComponent( currentFilter );
(( LdapFilterExtensibleComponent ) filterComponent ).setMatchingRuleColonToken( token );
handleError( currentFilter.setFilterComponent( filterComponent ), token, currentFilter );
}
else
{
handleError( ( filterComponent instanceof LdapFilterExtensibleComponent )
&& ( ( LdapFilterExtensibleComponent ) filterComponent ).setMatchingRuleColonToken( token ), token,
currentFilter );
}
break;
}
case LdapFilterToken.EXTENSIBLE_MATCHINGRULEOID:
{
LdapFilter currentFilter = ( LdapFilter ) filterStack.peek();
LdapFilterComponent filterComponent = currentFilter.getFilterComponent();
handleError( ( filterComponent instanceof LdapFilterExtensibleComponent )
&& ( ( LdapFilterExtensibleComponent ) filterComponent ).setMatchingRuleToken( token ), token,
currentFilter );
break;
}
case LdapFilterToken.EXTENSIBLE_EQUALS_COLON:
{
LdapFilter currentFilter = ( LdapFilter ) filterStack.peek();
LdapFilterComponent filterComponent = currentFilter.getFilterComponent();
handleError( ( filterComponent instanceof LdapFilterExtensibleComponent )
&& ( ( LdapFilterExtensibleComponent ) filterComponent ).setEqualsColonToken( token ), token,
currentFilter );
break;
}
case LdapFilterToken.EOF:
{
model.addOtherToken( token );
break;
}
default:
{
LdapFilter currentFilter = filterStack.peek();
handleError( false, token, currentFilter );
}
}
}
while ( !filterStack.isEmpty() && token.getType() != LdapFilterToken.EOF );