org.openmrs.module.restrictbyrole.api.db.hibernate.HibernateRestrictByRoleInterceptor.java Source code

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Here is the source code for org.openmrs.module.restrictbyrole.api.db.hibernate.HibernateRestrictByRoleInterceptor.java

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/**
 * The contents of this file are subject to the OpenMRS Public License
 * Version 1.0 (the "License"); you may not use this file except in
 * compliance with the License. You may obtain a copy of the License at
 * http://license.openmrs.org
 *
 * Software distributed under the License is distributed on an "AS IS"
 * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * Copyright (C) OpenMRS, LLC.  All Rights Reserved.
 */
package org.openmrs.module.restrictbyrole.api.db.hibernate;

import java.io.Serializable;

import org.hibernate.EmptyInterceptor;
import org.hibernate.type.Type;
import org.openmrs.Patient;
import org.openmrs.User;
import org.openmrs.api.context.Context;
import org.openmrs.module.restrictbyrole.api.RestrictByRoleService;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;

/**
 * 
 * @see org.hibernate.EmptyInterceptor
 *
 */
public class HibernateRestrictByRoleInterceptor extends EmptyInterceptor
        implements ApplicationContextAware, Serializable {

    private static final long serialVersionUID = 1L;
    private static HibernateRestrictByRoleInterceptor instance;
    private ApplicationContext context;

    private Class[] targetClasses = { Patient.class, User.class };

    public static HibernateRestrictByRoleInterceptor getInstance() {
        if (instance == null) {
            instance = new HibernateRestrictByRoleInterceptor();
        }
        return instance;
    }

    @Override
    public boolean onSave(Object entity, Serializable id, Object[] state, String[] propertyNames,
            org.hibernate.type.Type[] types) {
        return processEntity(entity);
    }

    @Override
    public void onDelete(Object entity, Serializable id, Object[] state, String[] propertyNames,
            org.hibernate.type.Type[] types) {
        processEntity(entity);
    }

    @Override
    public boolean onFlushDirty(Object entity, Serializable id, Object[] state, Object[] previousState,
            String[] propertyNames, Type[] types) {
        return processEntity(entity);
    }

    private boolean processEntity(Object entity) {
        for (Class type : targetClasses) {
            if (entity.getClass().isAssignableFrom(type)) {
                Context.getService(RestrictByRoleService.class).invalidateGetUserRestrictedPatientSetCache();
                return false;
            }
        }
        return false;
    }

    @Override
    public void setApplicationContext(ApplicationContext context) throws BeansException {
        this.context = context;
    }

}