vertexpropertysource.java

jboss规则引擎

                                                    List descriptorList,
                                                    Map valueMap) {
        addProperty( PROP_NAME,
                     VERTEX_LEFT_INPUT_ADAPTER,
                     descriptorList,
                     valueMap );

        FieldConstraint[] constraints = vertex.getConstraints();
        if ( constraints == null ) {
            return;
        }
        for ( int i = 0, length = constraints.length; i < length; i++ ) {
            PropertyDescriptor prop = new PropertyDescriptor( CONSTRAINT + (i + 1),
                                                              CONSTRAINT_CAP + " " + (i + 1) );
            addOther( prop,
                      constraints[i].toString(),
                      descriptorList,
                      valueMap );
        }

    }

    private void initRightInputAdapterNodeProperties(List descriptorList,
                                                     Map valueMap) {
        addProperty( PROP_NAME,
                     VERTEX_RIGHT_INPUT_ADAPTER,
                     descriptorList,
                     valueMap );
    }

    private void initJoinNodeProperties(JoinNodeVertex vertex,
                                        List descriptorList,
                                        Map valueMap) {

        addProperty( PROP_NAME,
                     VERTEX_JOIN,
                     descriptorList,
                     valueMap );
        addProperty( PROP_ID,
                     Integer.toString( vertex.getId() ),
                     descriptorList,
                     valueMap );

        FieldConstraint[] constraints = vertex.getConstraints();

        if ( constraints == null ) {
            return;
        }

        for ( int i = 0, length = constraints.length; i < length; i++ ) {
            PropertyDescriptor prop = new PropertyDescriptor( CONSTRAINT + (i + 1),
                                                              CONSTRAINT_CAP + " " + (i + 1) );
            addOther( prop,
                      constraints[i].toString(),
                      descriptorList,
                      valueMap );
        }

    }

    private void initNotNodeProperties(NotNodeVertex vertex,
                                       List descriptorList,
                                       Map valueMap) {
        addProperty( PROP_NAME,
                     VERTEX_NOT,
                     descriptorList,
                     valueMap );
        addProperty( PROP_ID,
                     Integer.toString( vertex.getId() ),
                     descriptorList,
                     valueMap );
    }

    private void initEvalConditionNodeProperties(EvalConditionNodeVertex vertex,
                                                 List descriptorList,
                                                 Map valueMap) {
        addProperty( PROP_NAME,
                     VERTEX_EVAL_CONDITION,
                     descriptorList,
                     valueMap );
        addProperty( PROP_ID,
                     Integer.toString( vertex.getId() ),
                     descriptorList,
                     valueMap );
    }

    private void initTerminalNodeProperties(TerminalNodeVertex node,
                                            List descriptorList,
                                            Map valueMap) {

        addProperty( PROP_NAME,
                     VERTEX_TERMINAL,
                     descriptorList,
                     valueMap );
        addProperty( PROP_ID,
                     Integer.toString( node.getId() ),
                     descriptorList,
                     valueMap );
        addProperty( PROP_RULE,
                     node.getRuleName(),
                     descriptorList,
                     valueMap );

    }

    private void addProperty(IPropertyDescriptor field,
                             String value,
                             List descriptorList,
                             Map valueMap) {
        descriptorList.add( field );
        valueMap.put( field.getId().toString(),
                      new NodeValue( CAT_GENERAL,
                                     value ) );
        if ( field instanceof PropertyDescriptor ) {
            ((PropertyDescriptor) field).setAlwaysIncompatible( true );
            ((PropertyDescriptor) field).setCategory( CAT_GENERAL );
        }

    }

    private void addOther(IPropertyDescriptor field,
                          String value,
                          List descriptorList,
                          Map valueMap) {
        descriptorList.add( field );
        valueMap.put( field.getId().toString(),
                      new NodeValue( CAT_OTHER,
                                     value ) );

        if ( field instanceof PropertyDescriptor ) {
            ((PropertyDescriptor) field).setAlwaysIncompatible( true );
            ((PropertyDescriptor) field).setCategory( CAT_OTHER );
        }

    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.views.properties.IPropertySource#getEditableValue()
     */
    public Object getEditableValue() {
        return null;
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.views.properties.IPropertySource#getPropertyValue(java.lang.Object)
     */
    public Object getPropertyValue(Object propName) {
        return getPropertyValue( (String) propName );
    }

    /**
     * Property value.
     * 
     * @param propName
     * @return
     */
    public Object getPropertyValue(String propName) {
        return ((NodeValue) (values.get( propName ))).value;
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.views.properties.IPropertySource#setPropertyValue(java.lang.Object, java.lang.Object)
     */
    public void setPropertyValue(Object propName,
                                 Object value) {
        setPropertyValue( propName,
                          value );
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.views.properties.IPropertySource#getPropertyDescriptors()
     */
    public IPropertyDescriptor[] getPropertyDescriptors() {
        return descriptors;
    }

    /**
     * Doing nothing as resetting properties from property sheet is not possible.
     */
    public void resetPropertyValue(Object propName) {
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.views.properties.IPropertySource#isPropertySet(java.lang.Object)
     */
    public boolean isPropertySet(Object propName) {
        return values.containsKey( propName );
    }

    private class NodeValue {
        final String category;
        final String value;

        NodeValue(String category,
                  String value) {
            this.category = category;
            this.value = value;
        }
    }

}