Package org.drools.compiler.lang.dsl

Examples of org.drools.compiler.lang.dsl.DefaultExpanderResolver

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    @Test
    public void testMultiLineTemplates() throws Exception {
        final Reader source = new InputStreamReader( getClass().getResourceAsStream( "rule_with_expander_multiline.dslr" ) );
        final Reader dsl = new InputStreamReader( getClass().getResourceAsStream( "test_dsl_multiline.dsl" ) );
        Expander ex =  new DefaultExpanderResolver(dsl).get("*", null);
        String r = ex.expand(source);
        assertEquals("when Car(color==\"Red\") then doSomething();", r.trim());
    }
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    public void testExpandDRLUsingInjectedExpander() throws Exception {
        String dsl = "[condition]Something=Something()" + NL + "[then]another=another();";
        String drl = "rule 'foo' " + NL + " when " + NL + " Something " + NL + " then " + NL + " another " + NL + "end";
       
       
        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 RuntimeException( "Error parsing and loading DSL file." + file.getErrors() );
        }

        DrlParser parser = new DrlParser(LanguageLevelOption.DRL5);
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    @Test
    public void testMultiLineTemplates() throws Exception {
        final Reader source = new InputStreamReader( getClass().getResourceAsStream( "rule_with_expander_multiline.dslr" ) );
        final Reader dsl = new InputStreamReader( getClass().getResourceAsStream( "test_dsl_multiline.dsl" ) );
        Expander ex =  new DefaultExpanderResolver(dsl).get("*", null);
        String r = ex.expand(source);
        assertEquals("when Car(color==\"Red\") then doSomething();", r.trim());
    }
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    public void testExpandDRLUsingInjectedExpander() throws Exception {
        String dsl = "[condition]Something=Something()\n[then]another=another();";
        String drl = "rule 'foo' \n when \n Something \n then \n another \nend";
       
       
        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() );
        }

        DrlParser parser = new DrlParser(LanguageLevelOption.DRL5);
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     * @throws DroolsParserException
     */
    public PackageDescr parse(boolean isEditor,
                              final String source,
                              final Reader dsl) throws DroolsParserException {
        DefaultExpanderResolver resolver = getDefaultResolver(dsl);

        final Expander expander = resolver.get( "*", null );
        final String expanded = expander.expand( source );
        if ( expander.hasErrors() ) {
            this.results.addAll( expander.getErrors() );
        }
        return this.parse(isEditor, expanded);
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     * @throws DroolsParserException
     *             If unable to expand in any way.
     */
    public String getExpandedDRL(final String source,
                                 final Reader dsl) throws DroolsParserException {
        DefaultExpanderResolver resolver = getDefaultResolver(dsl);
        return getExpandedDRL(source,
                resolver);
    }
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    public Location getLocation() {
        return this.location;
    }

    public DefaultExpanderResolver getDefaultResolver(final Reader dsl) throws DroolsParserException {
        DefaultExpanderResolver resolver;
        try {
            resolver = new DefaultExpanderResolver( dsl );
        } catch ( final IOException e ) {
            throw new DroolsParserException( "Error parsing the DSL.",
                                             e );
        }
        return resolver;
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     * @throws DroolsParserException
     */
    public PackageDescr parse(boolean isEditor,
                              final String source,
                              final Reader dsl) throws DroolsParserException {
        DefaultExpanderResolver resolver = getDefaultResolver(dsl);

        final Expander expander = resolver.get( "*", null );
        final String expanded = expander.expand( source );
        if ( expander.hasErrors() ) {
            this.results.addAll( expander.getErrors() );
        }
        return this.parse(isEditor, expanded);
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     * @throws DroolsParserException
     *             If unable to expand in any way.
     */
    public String getExpandedDRL(final String source,
                                 final Reader dsl) throws DroolsParserException {
        DefaultExpanderResolver resolver = getDefaultResolver(dsl);
        return getExpandedDRL(source,
                resolver);
    }
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    public Location getLocation() {
        return this.location;
    }

    public DefaultExpanderResolver getDefaultResolver(final Reader dsl) throws DroolsParserException {
        DefaultExpanderResolver resolver;
        try {
            resolver = new DefaultExpanderResolver( dsl );
        } catch ( final IOException e ) {
            throw new DroolsParserException( "Error parsing the DSL.",
                                             e );
        }
        return resolver;
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Related Classes of org.drools.compiler.lang.dsl.DefaultExpanderResolver

  • org.drools.compiler.compiler.DrlParser
  • org.drools.compiler.compiler.DrlParserTest
  • org.drools.compiler.integrationtests.DslTest
  • org.drools.compiler.lang.Expander
  • org.drools.core.RuntimeDroolsException
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