Package org.drools.lang.dsl

Examples of org.drools.lang.dsl.DefaultExpanderResolver

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    return dir.list(filter);
  }

  private DefaultExpanderResolver resolveDSLFiles() throws IOException {

    DefaultExpanderResolver resolver = new DefaultExpanderResolver();
    final File dir = new File(this.srcdir.getAbsolutePath());
    DSLMappingFile file = new DSLTokenizedMappingFile();

    FilenameFilter filter = new FilenameFilter() {
      public boolean accept(File dir, String name) {
        return name.endsWith(".dsl");
      }
    };

    String[] children = dir.list(filter);
    if (children.length == 0) {
      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 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();
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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() );
        }
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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() );
        }
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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.lang.dsl.DefaultExpanderResolver

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