PLSQLHandler.java example

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/**
 * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
 */

package net.sourceforge.pmd.lang.plsql;

import java.io.Writer;

import org.jaxen.Navigator;

import net.sourceforge.pmd.lang.AbstractLanguageVersionHandler;
import net.sourceforge.pmd.lang.DataFlowHandler;
import net.sourceforge.pmd.lang.Parser;
import net.sourceforge.pmd.lang.ParserOptions;
import net.sourceforge.pmd.lang.VisitorStarter;
import net.sourceforge.pmd.lang.XPathHandler;
import net.sourceforge.pmd.lang.ast.Node;
import net.sourceforge.pmd.lang.ast.xpath.DocumentNavigator;
import net.sourceforge.pmd.lang.dfa.DFAGraphRule;
import net.sourceforge.pmd.lang.plsql.ast.ASTInput;
import net.sourceforge.pmd.lang.plsql.ast.DumpFacade;
import net.sourceforge.pmd.lang.plsql.ast.PLSQLNode;
import net.sourceforge.pmd.lang.plsql.dfa.DFAPLSQLGraphRule;
import net.sourceforge.pmd.lang.plsql.dfa.DataFlowFacade;
import net.sourceforge.pmd.lang.plsql.rule.PLSQLRuleViolationFactory;
import net.sourceforge.pmd.lang.plsql.symboltable.SymbolFacade;
import net.sourceforge.pmd.lang.rule.RuleViolationFactory;

import net.sf.saxon.sxpath.IndependentContext;

/**
 * Implementation of LanguageVersionHandler for the PLSQL AST. It uses anonymous
 * classes as adapters of the visitors to the VisitorStarter interface.
 *
 * @author sturton - PLDoc - pldoc.sourceforge.net
 */
public class PLSQLHandler extends AbstractLanguageVersionHandler {

    public Parser getParser(ParserOptions parserOptions) {
        return new PLSQLParser(parserOptions);
    }

    public RuleViolationFactory getRuleViolationFactory() {
        return PLSQLRuleViolationFactory.INSTANCE;
    }

    @Override
    public DFAGraphRule getDFAGraphRule() {
        return new DFAPLSQLGraphRule();
    }

    @Override
    public DataFlowHandler getDataFlowHandler() {
        return new PLSQLDataFlowHandler();
    }

    @Override
    public VisitorStarter getDataFlowFacade() {
        return new VisitorStarter() {
            public void start(Node rootNode) {
                new DataFlowFacade().initializeWith(getDataFlowHandler(), (ASTInput) rootNode);
            }
        };
    }

    @Override
    public VisitorStarter getSymbolFacade() {
        return new VisitorStarter() {
            public void start(Node rootNode) {
                new SymbolFacade().initializeWith((ASTInput) rootNode);
            }
        };
    }

    @Override
    public VisitorStarter getDumpFacade(final Writer writer, final String prefix, final boolean recurse) {
        return new VisitorStarter() {
            public void start(Node rootNode) {
                new DumpFacade().initializeWith(writer, prefix, recurse, (PLSQLNode) rootNode);
            }
        };
    }

    @Override
    /**
     * Return minimal XPathHandler to cope with Jaxen XPath Rules.
     */
    public XPathHandler getXPathHandler() {
        return new XPathHandler() {
            public void initialize() {
            }

            public void initialize(IndependentContext context) {
            }

            public Navigator getNavigator() {
                return new DocumentNavigator();
            }
        };
    }
}