EditorBeanInitializerStore.java

/***************************************************
*
* cismet GmbH, Saarbruecken, Germany
*
*              ... and it just works.
*
****************************************************/
package de.cismet.cids.editors;

import Sirius.server.middleware.types.MetaClass;

import java.util.Collection;
import java.util.Collections;
import java.util.Map;

import de.cismet.cids.dynamics.CidsBean;

import de.cismet.tools.collections.TypeSafeCollections;

/**
 * DOCUMENT ME!
 *
 * @author   srichter
 * @version  $Revision$, $Date$
 */
public class EditorBeanInitializerStore {

    //~ Static fields/initializers ---------------------------------------------

    private static final EditorBeanInitializerStore INSTANCE = new EditorBeanInitializerStore();

    //~ Instance fields --------------------------------------------------------

    private final org.apache.log4j.Logger log = org.apache.log4j.Logger.getLogger(EditorBeanInitializerStore.class);
    private final Map<MetaClass, BeanInitializer> initializerStore;

    //~ Constructors -----------------------------------------------------------

    /**
     * Creates a new EditorBeanInitializerStore object.
     */
    private EditorBeanInitializerStore() {
        initializerStore = TypeSafeCollections.newHashMap();
    }

    //~ Methods ----------------------------------------------------------------

    /**
     * DOCUMENT ME!
     *
     * @return  DOCUMENT ME!
     */
    public static EditorBeanInitializerStore getInstance() {
        return INSTANCE;
    }

    /**
     * DOCUMENT ME!
     *
     * @param  metaClass    DOCUMENT ME!
     * @param  initializer  DOCUMENT ME!
     */
    public void registerInitializer(final MetaClass metaClass, final BeanInitializer initializer) {
        initializerStore.put(metaClass, initializer);
    }

    /**
     * DOCUMENT ME!
     *
     * @param   metaClass  DOCUMENT ME!
     *
     * @return  DOCUMENT ME!
     */
    public boolean unregisterInitializer(final MetaClass metaClass) {
        return initializerStore.remove(metaClass) != null;
    }

    /**
     * DOCUMENT ME!
     *
     * @param   metaClass  DOCUMENT ME!
     *
     * @return  DOCUMENT ME!
     */
    public BeanInitializer getInitializer(final MetaClass metaClass) {
        return initializerStore.get(metaClass);
    }

    /**
     * DOCUMENT ME!
     *
     * @return  DOCUMENT ME!
     */
    public Collection<MetaClass> getAllRegisteredClasses() {
        return Collections.unmodifiableCollection(initializerStore.keySet());
    }

    /**
     * DOCUMENT ME!
     *
     * @param   toInitialize  DOCUMENT ME!
     *
     * @throws  Exception                 DOCUMENT ME!
     * @throws  IllegalArgumentException  DOCUMENT ME!
     */
    public void initialize(final CidsBean toInitialize) throws Exception {
        if (toInitialize != null) {
            final BeanInitializer initializer = initializerStore.get(toInitialize.getMetaObject().getMetaClass());
            if (initializer != null) {
                initializer.initializeBean(toInitialize);
            }
        } else {
            throw new IllegalArgumentException("Bean to initialize was null!"); // NOI18N
        }
    }
}