Class BeansWrapper

src/main/java/freemarker/ext/beans/BeansWrapper.java:115–1801

Utility class that provides generic services to reflection classes. It handles all polymorphism issues in the #wrap(Object) and #unwrap(TemplateModel) methods. @author Attila Szegedi @version $Id: BeansWrapper.java,v 1.91.2.13 2007/04/02 13:08:59 szegedia Exp $

 * @version $Id: BeansWrapper.java,v 1.91.2.13 2007/04/02 13:08:59 szegedia Exp $
 */
public class BeansWrapper implements ObjectWrapper
{
    static final Object CAN_NOT_UNWRAP = new Object();
    private static final Class BIGINTEGER_CLASS = java.math.BigInteger.class;
    private static final Class BOOLEAN_CLASS = Boolean.class;
    private static final Class CHARACTER_CLASS = Character.class;
    private static final Class COLLECTION_CLASS = Collection.class;
    private static final Class DATE_CLASS = Date.class;
    private static final Class HASHADAPTER_CLASS = HashAdapter.class;
    private static final Class ITERABLE_CLASS;
    private static final Class LIST_CLASS = List.class;
    private static final Class MAP_CLASS = Map.class;
    private static final Class NUMBER_CLASS = Number.class;
    private static final Class OBJECT_CLASS = Object.class;
    private static final Class SEQUENCEADAPTER_CLASS = SequenceAdapter.class;
    private static final Class SET_CLASS = Set.class;
    private static final Class SETADAPTER_CLASS = SetAdapter.class;
    private static final Class STRING_CLASS = String.class;
    static {
        Class iterable;
        try {
            iterable = Class.forName("java.lang.Iterable");
        }
        catch(ClassNotFoundException e) {
            // We're running on a pre-1.5 JRE
            iterable = null;
        }
        ITERABLE_CLASS = iterable;
    }
    
    // When this property is true, some things are stricter. This is mostly to
    // catch anomalous things in development that can otherwise be valid situations
    // for our users.
    private static final boolean DEVELOPMENT = "true".equals(SecurityUtilities.getSystemProperty("freemarker.development"));
    
    private static final Constructor ENUMS_MODEL_CTOR = enumsModelCtor();

    private static final Logger logger = Logger.getLogger("freemarker.beans");
    
    private static final Set UNSAFE_METHODS = createUnsafeMethodsSet();
    
    static final Object GENERIC_GET_KEY = new Object();
    private static final Object CONSTRUCTORS = new Object();
    private static final Object ARGTYPES = new Object();

    private static final boolean javaRebelAvailable = isJavaRebelAvailable();
    
    /**
     * The default instance of BeansWrapper
     */
    private static final BeansWrapper INSTANCE = new BeansWrapper();

    /**
     * Used for synchronization by {@link #genericClassIntrospectionCache},
     * {@link #staticModels} and {@link #enumModels} (and by any similar future
     * fields). The primary goal of using a common monitor is to prevent
     * deadlocks when these objects call each other.
     */