com.hiperium.bo.interceptor.UserAuditInterceptor.java Source code

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Here is the source code for com.hiperium.bo.interceptor.UserAuditInterceptor.java

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/**
 * Product  : Hiperium Project
 * Architect: Andres Solorzano.
 * Created  : 08-05-2009 - 23:30:00
 * 
 * The contents of this file are copyrighted by Andres Solorzano 
 * and it is protected by the license: "GPL V3." You can find a copy of this 
 * license at: http://www.hiperium.com/about/licence.html
 * 
 * Copyright 2014 Andres Solorzano. All rights reserved.
 * 
 */
package com.hiperium.bo.interceptor;

import java.util.Locale;

import javax.ejb.EJB;
import javax.inject.Inject;
import javax.interceptor.InvocationContext;

import org.apache.commons.lang.StringUtils;

import com.hiperium.bo.audit.UserAuditBO;
import com.hiperium.bo.manager.exception.ExceptionManager;
import com.hiperium.bo.manager.security.SessionManager;
import com.hiperium.commons.EnumHiperiumTier;
import com.hiperium.commons.EnumI18N;
import com.hiperium.commons.HiperiumTier;
import com.hiperium.commons.exception.EnumInformationException;
import com.hiperium.commons.exception.InformationException;
import com.hiperium.commons.log.HiperiumLogger;
import com.hiperium.model.EnumCrudOperation;

/**
 * 
 * @author Andres Solorzano
 * @version 1.0
 */
public class UserAuditInterceptor {

    /** The property log. */
    @Inject
    @HiperiumTier(EnumHiperiumTier.BUSINESS)
    private HiperiumLogger log;
    /** The property sessionManager. */
    @Inject
    private SessionManager sessionManager;

    /** The property userAuditBO. */
    @EJB
    private UserAuditBO userAuditBO;
    /** The property exceptionManager. */
    @EJB
    private ExceptionManager exceptionManager;

    /**
     * 
     * @param context
     * @return
     * @throws Exception
     */
    public Object registerUserAudit(InvocationContext context) throws InformationException {
        this.log.debug("registerUserAudit() - BEGIN: " + context.getMethod().getName());
        Object result = null;
        // Validate the user session ID
        Object[] params = context.getParameters();
        String sessionId = (String) params[params.length - 1];
        if (StringUtils.isBlank(sessionId) || !this.sessionManager.isUserLoggedIn(sessionId)) {
            throw InformationException.generate(EnumI18N.COMMON, EnumInformationException.ACCESS_NOT_ALLOWED,
                    Locale.getDefault());
        }
        try {
            // Identify the CRUD operation in the method invocation
            EnumCrudOperation operation = EnumCrudOperation.decodeValue(context.getMethod().getName());
            if (EnumCrudOperation.CREATE.equals(operation) || EnumCrudOperation.UPDATE.equals(operation)
                    || EnumCrudOperation.DELETE.equals(operation)) {
                log.debug("CRUD OPERATION");
                result = context.proceed();
                // At the return of the method invocation we need to store the audit
                this.userAuditBO.create(context.getTarget().getClass().getSimpleName(), operation, sessionId);
            } else if (EnumCrudOperation.READ.equals(operation)) {
                log.debug("READ OPERATION");
                result = context.proceed();
            } else {
                throw InformationException.generate(EnumI18N.COMMON, EnumInformationException.ACCESS_NOT_ALLOWED,
                        this.sessionManager.findUserLocale(sessionId));
            }
        } catch (Exception e) {
            InformationException infoException = null;
            if (e.getCause() instanceof InformationException) {
                infoException = (InformationException) e;
                throw infoException;
            }
            infoException = this.exceptionManager.createMessageException(e,
                    this.sessionManager.findUserLocale(sessionId));
            throw infoException;
        }
        this.log.debug("registerUserAudit() - END: " + context.getMethod().getName());
        return result;
    }
}