Java tutorial
/** * Revenue Settlement and Sharing System GE * Copyright (C) 2011-2014, Javier Lucio - lucio@tid.es * Telefonica Investigacion y Desarrollo, S.A. * * Copyright (C) 2015, CoNWeT Lab., Universidad Politcnica de Madrid * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package es.upm.fiware.rss.expenditureLimit.processing; import java.math.BigDecimal; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import es.upm.fiware.rss.common.Constants; import es.upm.fiware.rss.dao.DbeAppProviderDao; import es.upm.fiware.rss.exception.RSSException; import es.upm.fiware.rss.exception.UNICAExceptionType; import es.upm.fiware.rss.expenditureLimit.dao.DbeExpendControlDao; import es.upm.fiware.rss.expenditureLimit.dao.DbeExpendLimitDao; import es.upm.fiware.rss.expenditureLimit.model.DbeExpendControl; import es.upm.fiware.rss.expenditureLimit.model.DbeExpendLimit; import es.upm.fiware.rss.model.DbeTransaction; /** * * */ @Service("processLimitService") @Transactional public class ProcessingLimitService { /** * Variable to print the trace. */ private static Logger logger = LoggerFactory.getLogger(ProcessingLimitService.class); public static String DAY_PERIOD_TYPE = "daily"; public static String MONTH_PERIOD_TYPE = "monthly"; public static String WEEK_TYPE = "weekly"; public static String TRANSACTION_TYPE = "perTransaction"; public static String EXCCED_PARAMETER_NAME = "%levelExcceded%"; @Autowired private DbeExpendLimitDao expendLimitDao; @Autowired private DbeExpendControlDao expendControlDao; /** * */ @Autowired private DbeAppProviderDao appProviderDao; /** * * Check that a charge do not exceed control limit. * * @param tx * @param update * @throws RSSException */ public void proccesLimit(DbeTransaction tx) throws RSSException { ProcessingLimitService.logger.debug("=========== Process limit for tx:" + tx.getTxTransactionId()); // transaction to take into account: charge, capture, refund String operationType = tx.getTcTransactionType(); if (operationType.equalsIgnoreCase(Constants.CAPTURE_TYPE) || operationType.equalsIgnoreCase(Constants.CHARGE_TYPE) || operationType.equalsIgnoreCase(Constants.REFUND_TYPE)) { ProcessingLimitService.logger.debug("===== IF"); // Obtain accumulated List<DbeExpendControl> controls = getControls(tx); DbeExpendControl control; BigDecimal levelExceded = new BigDecimal(0); List<DbeExpendLimit> limits = getLimits(tx); if (null != limits && !limits.isEmpty()) { boolean notification = false; for (DbeExpendLimit limit : limits) { if (ProcessingLimitService.TRANSACTION_TYPE.equalsIgnoreCase(limit.getId().getTxElType())) { ProcessingLimitUtil utils = new ProcessingLimitUtil(); BigDecimal total = utils.getValueToAddFromTx(tx); checkMaxAmountExceed(total, limit, tx); } else { // Get control to check against the limit control = getExpendControlToCheck(controls, limit, tx); // check end period do not exceeded // reset control limit if done // Add amount. // Obtain the limits and accumulates of an user. // check if there is notifications BigDecimal controlLevelExceded = checkLimit(control, limit, tx); if (controlLevelExceded.compareTo(levelExceded) > 0) { ProcessingLimitService.logger.debug("level exceeded: " + controlLevelExceded); levelExceded = controlLevelExceded; notification = true; } } } if (notification) { ProcessingLimitService.logger.warn( "Notification limit " + levelExceded + " exceed for tx:" + tx.getTxTransactionId()); } } } } /** * Get the Control limit to check. If not exist generate it. * * @param controls * @param type * @param tx * @return */ @Transactional private DbeExpendControl getExpendControlToCheck(List<DbeExpendControl> controls, DbeExpendLimit limit, DbeTransaction tx) throws RSSException { // Obtain accumulated --> if not exist --> create it. if (null != controls && controls.size() > 0) { for (DbeExpendControl control : controls) { if (limit.getId().getTxElType().equalsIgnoreCase(control.getId().getTxElType())) { return control; } } } ProcessingLimitUtil utils = new ProcessingLimitUtil(); // Create control DbeExpendControl control = utils.createControl(tx, limit); // save control. expendControlDao.createOrUpdate(control); // Add control to the list to take into account if (controls == null) { controls = new ArrayList<>(); } controls.add(control); return control; } /** * Update control limit after a charge. * * @param tx * @param update * @throws RSSException */ @Transactional public void updateLimit(DbeTransaction tx) throws RSSException { ProcessingLimitService.logger.debug("Update limit for tx: " + tx.getTxTransactionId()); // transaction to take into account: charge, capture, refund String operationType = tx.getTcTransactionType(); if ((operationType.equalsIgnoreCase(Constants.CAPTURE_TYPE) || operationType.equalsIgnoreCase(Constants.CHARGE_TYPE) || operationType.equalsIgnoreCase(Constants.REFUND_TYPE))) { ProcessingLimitUtil utils = new ProcessingLimitUtil(); List<DbeExpendControl> controls = getControls(tx); // always update limits to take into account two charges at the same time if (null != controls && controls.size() > 0) { for (DbeExpendControl control : controls) { // check the period in order to reset it. ckeckPeriodLimit(control); // update the quantity. BigDecimal total = utils.updateAcccumalateValue(control, tx); control.setFtExpensedAmount(total); expendControlDao.createOrUpdate(control); } } } } /** * Get Controls. * * @param tx * @throws RSSException */ private List<DbeExpendControl> getControls(DbeTransaction tx) throws RSSException { // could be end user or globlaUser List<DbeExpendControl> controls = expendControlDao.getExpendDataForUserAppProvCurrency(tx.getTxEndUserId(), tx.getAppProvider().getId().getAggregator().getTxEmail(), tx.getAppProvider().getId().getTxAppProviderId(), tx.getBmCurrency()); return controls; } /** * Get Limits. * * @param tx * @throws RSSException */ private List<DbeExpendLimit> getLimits(DbeTransaction tx) throws RSSException { // could be end user or globlaUser HashMap<String, List<DbeExpendLimit>> limitsHash = expendLimitDao.getOrdExpLimitsForUserAppProvCurrency( tx.getTxEndUserId(), tx.getAppProvider().getId().getAggregator().getTxEmail(), tx.getAppProvider().getId().getTxAppProviderId(), tx.getBmCurrency()); List<DbeExpendLimit> limits = new ArrayList<>(); limits.addAll(limitsHash.get(DbeExpendLimitDao.USER_APP_PROV_KEY)); limits.addAll(limitsHash.get(DbeExpendLimitDao.USER_KEY)); limits.addAll(limitsHash.get(DbeExpendLimitDao.APP_PROV_KEY)); limits.addAll(limitsHash.get(DbeExpendLimitDao.ALL_GENERIC_KEY)); return limits; } /** * Check that once limit is not exceed * * @param limit * @param tx * @throws RSSException * @return boolean */ private BigDecimal checkLimit(DbeExpendControl control, DbeExpendLimit limit, DbeTransaction tx) throws RSSException { ProcessingLimitUtil utils = new ProcessingLimitUtil(); // check end period do not exceed // reset control limit if done // check limit and update if needed. ckeckPeriodLimit(control); // Update value. BigDecimal total = utils.updateAcccumalateValue(control, tx); // check that the limit is not exceed checkMaxAmountExceed(total, limit, tx); // check notifications return checkNotification(control, limit, total); } /** * Check amounts and generate exceptions. * * @param total * @param limit * @param tx * @throws RSSException */ private void checkMaxAmountExceed(BigDecimal total, DbeExpendLimit limit, DbeTransaction tx) throws RSSException { // check that the limit is not exceed if (total.compareTo(limit.getFtMaxAmount()) > 0) { ProcessingLimitService.logger.error("Credit limit " + limit.getFtMaxAmount() + " exceeded " + limit.getId().getTxElType() + " for tx:" + tx.getTxTransactionId()); String[] args = { "Limit " + limit.getId().getTxElType() + " exceeded by transactionId:" + tx.getTxTransactionId() }; throw new RSSException(UNICAExceptionType.INSUFFICIENT_MOP_BALANCE, args); } } /** * Check notifications to sent * * @param control * @param limit * @param total * @return */ @Transactional private BigDecimal checkNotification(DbeExpendControl control, DbeExpendLimit limit, BigDecimal total) { ProcessingLimitUtil utils = new ProcessingLimitUtil(); List<BigDecimal> limits = utils.getLimitsFromString(limit.getTxNotifAmounts()); BigDecimal maxLevel = new BigDecimal(0); if (null != limits && limits.size() > 0) { for (BigDecimal value : limits) { // the total is equal or greater to the threshold if (total.compareTo(value) >= 0) { // Obtain the maxLevel if (value.compareTo(maxLevel) > 0) { maxLevel = value; } } } } ProcessingLimitService.logger.debug("MaxLevel reached: " + maxLevel); // Compare against the notifications sent BigDecimal lastNotificationSent = utils.getLastNotificationSent(control.getTxNotifications()); if (null == lastNotificationSent) { lastNotificationSent = new BigDecimal(0); } ProcessingLimitService.logger.debug("Last notification sent: " + lastNotificationSent); if (maxLevel.compareTo(lastNotificationSent) > 0) { ProcessingLimitService.logger.debug("Add Notification for level: " + maxLevel); // Add new notification and sent. control.setTxNotifications(utils.addValueToLimits(maxLevel, control.getTxNotifications())); expendControlDao.createOrUpdate(control); return maxLevel; } return new BigDecimal(0); } /** * Check that a period has not been exceeded in order to reset it. * * @param limit * @throws RSSException */ @Transactional private void ckeckPeriodLimit(DbeExpendControl control) throws RSSException { if (null != control.getDtNextPeriodStart() && control.getDtNextPeriodStart().compareTo(new Date()) <= 0) { ProcessingLimitUtil utils = new ProcessingLimitUtil(); ProcessingLimitService.logger.debug("Reset control " + control.getId().getTxElType()); // if period has ended. // reset Amount control.setFtExpensedAmount(new BigDecimal(0)); // reset notifications control.setTxNotifications(""); // Update NextPeriodStart utils.updateNextPeriodToStart(control); expendControlDao.createOrUpdate(control); } } }