Example usage for org.hibernate.mapping RootClass getDiscriminator

Introduction

In this page you can find the example usage for org.hibernate.mapping RootClass getDiscriminator.

Prototype

@Override
    public Value getDiscriminator() 

Source Link

Usage

From source file:gov.nih.nci.system.util.ClassCache.java

License:BSD License

/**
 * initialize with a list of the classes obtained from each DAO class within
 * the System/*from  w  w w. jav  a 2  s.  c  o m*/
 */
private void initialize() throws DAOException {

    String unqualifiedClassName = null;
    Class klass = null;

    HashSet<String> tmpPackageNames = new HashSet<String>();

    List<String> allClassNames;
    Set<String> implicitClassNames = new HashSet<String>();

    for (DAO dao : daoList) {

        allClassNames = dao.getAllClassNames();

        // Implicit superclasses have no hibernate mapping and so are not
        // part of the dao class names
        String implicitSuperclass = null;
        for (String klassName : allClassNames) {
            implicitSuperclass = klassName;
            do {
                try {
                    implicitSuperclass = Class.forName(implicitSuperclass).getSuperclass().getName();
                    log.debug("Checking if class " + implicitSuperclass + " is implicit");

                    if (!(implicitSuperclass.equalsIgnoreCase("java.lang.Object"))
                            && !(allClassNames.contains(implicitSuperclass))) {
                        log.debug("Adding " + implicitSuperclass + " as an implicit superclass");
                        implicitClassNames.add(implicitSuperclass);
                    }
                } catch (ClassNotFoundException e) {
                    log.error("Error:  Class not found: " + implicitSuperclass);
                    implicitSuperclass = null;
                }
            } while ((!implicitSuperclass.equalsIgnoreCase("java.lang.Object"))
                    && !(implicitSuperclass == null));
        }

        log.debug("Number of implicit superclasses found: " + implicitClassNames.size());
        allClassNames.addAll(implicitClassNames);

        // Certain metadata needs to be generated prior to caching the rest
        // of the info
        for (String klassName : allClassNames) {

            try {
                klass = Class.forName(klassName);
            } catch (ClassNotFoundException e) {
                log.error("ClassNotFoundException caught: ", e);
            }
            String packageName = klass.getPackage().getName();
            unqualifiedClassName = klassName.substring(klassName.lastIndexOf(".") + 1);
            log.debug("Unqualified class name: " + unqualifiedClassName);

            if ((pkgNameForClassCache.get(klassName.toLowerCase()) != null)
                    || (pkgNameForClassCache.get(unqualifiedClassName) != null)) {
                throw new DAOException(
                        "Duplicate Class name found while initializing ClassCache: " + klassName);
            }
            // Cache the package name for each klass
            pkgNameForClassCache.put(klassName.toLowerCase(), packageName);
            pkgNameForClassCache.put(unqualifiedClassName.toLowerCase(), packageName);
            nonPrimitiveFieldsCache.put(klassName, cacheNonPrimitiveFieldNames(klass));

            allFieldsCache.put(klassName, cacheAllFieldNames(klass));

            log.debug("Adding class " + klass.getName() + " to Class Cache.");
            classCache.put(klassName, klass);
            classCache.put(klassName.toLowerCase(), klass);
            classCache.put(unqualifiedClassName, klass);
            classCache.put(unqualifiedClassName.toLowerCase(), klass);

            log.debug("Adding class " + klass.getName() + " to DAO Cache for DAO: " + dao.getClass().getName());
            daoCache.put(klassName, dao);
            daoCache.put(klassName.toLowerCase(), dao);
            daoCache.put(unqualifiedClassName, dao);
            daoCache.put(unqualifiedClassName.toLowerCase(), dao);

            // Cache the identifier (id key) for each class
            if (dao instanceof ORMDAOImpl)
                classIdCache.put(klassName, ((ORMDAOImpl) dao).getClassIdentiferName(klassName));
        }

        // Certain metadata needs to be cached prior to caching the rest,
        // so here we loop through the second time now that we have the data
        // we need
        for (String klassName : allClassNames) {
            log.debug("Adding class " + klassName + " to allClassNames List");

            allQualClassNames.add(klassName);
            unqualifiedClassName = klassName.substring(klassName.lastIndexOf(".") + 1);
            log.debug("Unqualified class name: " + unqualifiedClassName);
            allUnqualClassNames.add(unqualifiedClassName);

            List<String> pkgClassNames = new ArrayList<String>();
            try {
                klass = Class.forName(klassName);

                String packageName = klass.getPackage().getName();

                // Cache all package names
                tmpPackageNames.add(packageName);

                // Cache associations for klass
                classAssociationsCache.put(klassName, cacheAssociations(klassName));

                // Collect all class names within a package
                if (!pkgClassNamesCache.containsKey(packageName)) {
                    pkgClassNames.add(klassName);
                    pkgClassNamesCache.put(packageName, pkgClassNames);
                } else {
                    List<String> existingCollection = pkgClassNamesCache.get(packageName);
                    existingCollection.add(klassName);
                }

            } catch (ClassNotFoundException cnfe) {
                log.error("Exception caught while initializing ClassCache for class: " + klassName, cnfe);
            }
        }

        for (String klassName : allClassNames) {
            log.debug("Adding class " + klassName + " to subClassCache List");
            try {
                klass = Class.forName(klassName);

                String currentKlassName = klassName;
                Class superKlass = klass.getSuperclass();
                String superKlassName = superKlass.getName();
                while (!"java.lang.Object".equals(superKlass.getName())) {
                    List<String> subKlassNames = subClassCache.get(superKlassName);
                    if (subKlassNames == null) {
                        subKlassNames = new ArrayList<String>();
                        subClassCache.put(superKlassName, subKlassNames);
                    }
                    if (!subKlassNames.contains(currentKlassName))
                        subKlassNames.add(currentKlassName);
                    currentKlassName = superKlass.getName();
                    superKlass = superKlass.getSuperclass();
                    superKlassName = superKlass.getName();
                }
            } catch (ClassNotFoundException e) {
                log.error("Exception caught while initializing ClassCache for class: " + klassName, e);
            }
        }

        if (dao instanceof ORMDAOImpl) {
            Configuration cfg = ((ORMDAOImpl) dao).getConfig();

            Iterator iter = cfg.getClassMappings();
            while (iter.hasNext()) {
                PersistentClass pklass = (PersistentClass) iter.next();
                Object identifier = null;
                log.debug("Getting discriminator details for : " + pklass.getClassName() + ":");
                if (pklass instanceof Subclass) {
                    Subclass subklass = (Subclass) pklass;
                    if (subklass.isJoinedSubclass())
                        identifier = subklass.getSubclassId();
                    else
                        identifier = getShortClassName(subklass.getClassName());
                } else if (pklass instanceof RootClass) {

                    RootClass rootklass = (RootClass) pklass;
                    if (rootklass.getDiscriminator() == null)
                        identifier = rootklass.getSubclassId();
                    else
                        identifier = getShortClassName(rootklass.getClassName());
                }
                log.debug(identifier);
                discriminatorMap.put(pklass.getClassName(), identifier);
            }
        }
        if (dao instanceof ORMDAOImpl) {
            Configuration cfg = ((ORMDAOImpl) dao).getConfig();
            for (String className : allClassNames) {
                Map<String, Map<String, List<Object>>> tempSearchFieldForObject = getMapOfSearchFields(cfg,
                        className);
                if (tempSearchFieldForObject != null)
                    searchableFieldsMap.putAll(tempSearchFieldForObject);
            }
        }
    }

    allPackageNamesCache = new ArrayList<String>(tmpPackageNames);

    Collections.sort(allPackageNamesCache);
    Collections.sort(allQualClassNames);
    Collections.sort(allUnqualClassNames);
}

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