Package org.drools.lang.dsl

Examples of org.drools.lang.dsl.DefaultExpander

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        DefaultExpanderResolver resolver = new DefaultExpanderResolver(new StringReader(dsl));
       
       
        final DSLMappingFile file = new DSLTokenizedMappingFile();
        if ( file.parseAndLoad( new StringReader(dsl) ) ) {
            final Expander expander = new DefaultExpander();
            expander.addDSLMapping( file.getMapping() );
            resolver.addExpander("*", expander);
        } else {
            throw new RuntimeDroolsException( "Error parsing and loading DSL file." + file.getErrors() );
        }

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    PackageDescr dslrToPackageDescr(Resource resource) throws DroolsParserException {
        boolean hasErrors;
        PackageDescr pkg;

        DrlParser parser = new DrlParser();
        DefaultExpander expander = getDslExpander();

        Reader reader = null;
        try {
            if (expander == null) {
                expander = new DefaultExpander();
            }
            reader = resource.getReader();
            String str = expander.expand( reader );
            if (expander.hasErrors()) {
                this.results.addAll( expander.getErrors() );
            }

            pkg = parser.parse( str );
            this.results.addAll( parser.getErrors() );
            hasErrors = parser.hasErrors();
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        Reader knowledge = provider.getKnowledgeReader( resource );

        DrlParser parser = new DrlParser();

        if (provider.hasDSLSentences()) {
            DefaultExpander expander = getDslExpander();

            if (null != expander) {
                knowledge = new StringReader( expander.expand( knowledge ) );
                if (expander.hasErrors())
                    this.results.addAll( expander.getErrors() );
            }
        }

        PackageDescr pkg = parser.parse( knowledge );
        if (parser.hasErrors()) {
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    /**
     * Returns an expander for DSLs (only if there is a DSL configured for this
     * package).
     */
    public DefaultExpander getDslExpander() {
        DefaultExpander expander = new DefaultExpander();
        if (this.dslFiles == null || this.dslFiles.isEmpty()) {
            return null;
        }
        for (DSLMappingFile file : this.dslFiles) {
            expander.addDSLMapping( file.getMapping() );
        }
        return expander;
    }
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            throw new BuildException( "There are no DSL files for this directory:" + this.srcdir.getAbsolutePath() );
        }

        for ( int index = 0; index < children.length; index++ ) {
            if ( file.parseAndLoad( new StringReader( loadResource( children[index] ) ) ) ) {
                final Expander expander = new DefaultExpander();
                expander.addDSLMapping( file.getMapping() );
                resolver.addExpander( "*",
                                      expander );
            } else {
                throw new RuntimeDroolsException( "Error parsing and loading DSL file." + file.getErrors() );
            }
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    public void setFocus() {
        if (getActivePage() == 1) {
            // check if translation does succeed
            try {
                DefaultExpander expander = new DefaultExpander();
                String content = dslRuleEditor.getContent();
                Reader reader = DSLAdapter.getDSLContent(content, dslRuleEditor.getResource());
                if (reader == null) {
                    throw new IllegalArgumentException("Could not find dsl definition.");
                }
                DSLMappingFile mapping = new DSLTokenizedMappingFile();
                mapping.parseAndLoad(reader);
                reader.close();
                expander.addDSLMapping(mapping.getMapping());
                expander.expand(content);
                // if translation succeeds, change to drl viewer
                drlRuleViewer.setInput(getEditorInput());
                drlRuleViewer.setSelectedRange(selection);
            } catch (Throwable t) {
                t.printStackTrace();
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        super(dslDocument);
        this.viewer = viewer;
    }

    protected String transformInput(String content) {
        DefaultExpander expander = new DefaultExpander();
        try {
            Reader reader = DSLAdapter.getDSLContent(content, viewer.getResource());
            DSLMappingFile mapping = new DSLTokenizedMappingFile();
            mapping.parseAndLoad(reader);
            reader.close();
            expander.addDSLMapping(mapping.getMapping());
            return expander.expand(content);
        } catch (Throwable t) {
            //viewer.handleError(t);
            return content;
        }
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    public void addPackageFromDslr(final Resource resource) throws DroolsParserException,
                                                             IOException {
        this.resource = resource;

        final DrlParser parser = new DrlParser();
        DefaultExpander expander = getDslExpander();

        try {
            if ( expander == null ) {
                expander = new DefaultExpander();
            }
            String str = expander.expand( resource.getReader() );
            if ( expander.hasErrors() ) {
                this.results.addAll( expander.getErrors() );
            }

            final PackageDescr pkg = parser.parse( str );
            this.results.addAll( parser.getErrors() );
            if ( !parser.hasErrors() ) {
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            Reader knowledge = provider.getKnowledgeReader( resource );

            DrlParser parser = new DrlParser();

            if ( provider.hasDSLSentences() ) {
                DefaultExpander expander = getDslExpander();

                if ( null != expander ) {
                    knowledge = new StringReader( expander.expand( knowledge ) );
                    if ( expander.hasErrors() ) this.results.addAll( expander.getErrors() );
                }
            }

            PackageDescr pkg = parser.parse( knowledge );
            if ( parser.hasErrors() ) {
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    /**
     * Returns an expander for DSLs (only if there is a DSL configured for this
     * package).
     */
    public DefaultExpander getDslExpander() {
        DefaultExpander expander = new DefaultExpander();
        if ( this.dslFiles == null || this.dslFiles.isEmpty() ) {
            return null;
        }
        for ( DSLMappingFile file : this.dslFiles ) {
            expander.addDSLMapping( file.getMapping() );
        }
        return expander;
    }
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Related Classes of org.drools.lang.dsl.DefaultExpander

  • org.drools.compiler.DrlParserTest
  • org.drools.compiler.PackageBuilder
  • org.drools.contrib.DroolsCompilerAntTask
  • org.drools.eclipse.dsl.editor.DSLRuleEditor2
  • org.drools.eclipse.dsl.editor.DSLtoDRLDocument
  • org.drools.guvnor.server.builder.BRMSPackageBuilder
  • org.drools.guvnor.server.contenthandler.drools.DSLRuleContentHandler
  • org.drools.guvnor.server.contenthandler.DSLRuleContentHandler
  • org.drools.lang.ErrorsParserTest
  • org.drools.lang.RuleParserTest
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