Examples of org.drools.decisiontable.parser.RuleSheetListener

org.drools.decisiontable.parser.RuleSheetListener
@author Shaun Addison Michael Neale Define a ruleset spreadsheet which contains one or more decision tables. Stay calm, deep breaths... this is a little bit scary, its where it all happens. A table is identifed by a cell beginning with the text "RuleTable". The first row after the table identifier defines the column type: either a condition ("C") or consequence ("A" for action), and so on. The second row identifies the java code block associated with the condition or consequence. This code block will include a parameter marker for the attribute defined by that column. The third row is a label for the attribute associated with that column. All subsequent rows identify rules with the set.

     * @return DRL xml, ready for use in drools.
     */
    public String convertToDRL(InputStream xlsStream,
                               InputType type)
    {
        RuleSheetListener listener = getRuleSheetListener( xlsStream,
                                                           type );
        Ruleset ruleset = listener.getRuleSet( );
        return ruleset.toXML( );
    }

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     * @return DRL, ready to go.
     */
    public String convertToDRL(InputStream stream,
                               String worksheetName)
    {
        RuleSheetListener listener = getRuleSheetListener( stream,
                                                           worksheetName );
        Ruleset ruleset = listener.getRuleSet( );
        return ruleset.toXML( );
    }

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    }


    private RuleSheetListener getRuleSheetListener(InputStream stream,
                                                   InputType type)
    {
        RuleSheetListener listener = new RuleSheetListener( );


        DecisionTableParser parser = type.createParser( listener );
        parser.parseFile( stream );
        return listener;
    }

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    }


    private RuleSheetListener getRuleSheetListener(InputStream stream,
                                                   String worksheetName)
    {
        RuleSheetListener listener = new RuleSheetListener( );
        Map listeners = new HashMap( );
        listeners.put( worksheetName,
                       listener );
        ExcelParser parser = new ExcelParser( listeners );
        parser.parseFile( stream );

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     *            The name of the worksheet that the decision tables live on.
     * @return DRL, ready to go.
     */
    public String compile(final InputStream stream,
                          final String worksheetName) {
        final RuleSheetListener listener = getRuleSheetListener( stream,
                                                                 worksheetName );
        final Package rulePackage = listener.getRuleSet();
        final DRLOutput out = new DRLOutput();
        rulePackage.renderDRL( out );
        return out.getDRL();
    }

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        return out.getDRL();
    }


    private RuleSheetListener getRuleSheetListener(final InputStream stream,
                                                   final String worksheetName) {
        final RuleSheetListener listener = new DefaultRuleSheetListener();
        final Map sheetListeners = new HashMap();
        final List listeners = new ArrayList();
        listeners.add(listener);
        sheetListeners.put( worksheetName,
                       listeners );

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     *            The name of the worksheet that the decision tables live on.
     * @return DRL, ready to go.
     */
    public String compile(final InputStream stream,
                          final String worksheetName) {
        final RuleSheetListener listener = getRuleSheetListener( stream,
                                                                 worksheetName );
        final Package rulePackage = listener.getRuleSet();
        final DRLOutput out = new DRLOutput();
        rulePackage.renderDRL( out );
        return out.getDRL();
    }

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     *            The name of the worksheet that the decision tables live on.
     * @return DRL, ready to go.
     */
    public String compile(final InputStream stream,
                          final String worksheetName) {
        final RuleSheetListener listener = getRuleSheetListener( stream,
                                                                 worksheetName );
        final Package rulePackage = listener.getRuleSet();
        final DRLOutput out = new DRLOutput();
        rulePackage.renderDRL( out );
        return out.getDRL();
    }

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     *            The name of the worksheet that the decision tables live on.
     * @return DRL, ready to go.
     */
    public String compile(final InputStream stream,
                          final String worksheetName) {
        final RuleSheetListener listener = getRuleSheetListener( stream,
                                                                 worksheetName );
        final Package rulePackage = listener.getRuleSet();
        final DRLOutput out = new DRLOutput();
        rulePackage.renderDRL( out );
        return out.getDRL();
    }

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     *            The name of the worksheet that the decision tables live on.
     * @return DRL, ready to go.
     */
    public String compile(final InputStream stream,
                          final String worksheetName) {
        final RuleSheetListener listener = getRuleSheetListener( stream,
                                                                 worksheetName );
        final Package rulePackage = listener.getRuleSet();
        final DRLOutput out = new DRLOutput();
        rulePackage.renderDRL( out );
        return out.getDRL();
    }

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Related Classes of org.drools.decisiontable.parser.RuleSheetListener

org.drools.decisiontable.model.Condition

org.drools.decisiontable.model.Consequence

org.drools.decisiontable.model.Duration

org.drools.decisiontable.model.Rule

org.drools.decisiontable.model.Ruleset

org.drools.decisiontable.SpreadsheetCompiler

org.drools.decisiontable.SpreadsheetDRLConverter

java.util.LinkedList

java.util.HashMap

java.util.List

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