| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package com.epam.dlab.backendapi.service; |
| |
| import com.epam.dlab.auth.UserInfo; |
| import com.epam.dlab.backendapi.dao.BaseBillingDAO; |
| import com.epam.dlab.backendapi.dao.BillingDAO; |
| import com.epam.dlab.backendapi.resources.dto.BillingFilter; |
| import com.epam.dlab.backendapi.util.CSVFormatter; |
| import com.epam.dlab.exceptions.DlabException; |
| import com.google.inject.Inject; |
| import jersey.repackaged.com.google.common.collect.Lists; |
| import lombok.extern.slf4j.Slf4j; |
| import org.bson.Document; |
| |
| import java.text.ParseException; |
| import java.util.List; |
| |
| @Slf4j |
| public abstract class BillingService { |
| |
| @Inject |
| private BillingDAO billingDAO; |
| |
| public Document getReport(UserInfo userInfo, BillingFilter filter) { |
| log.trace("Get billing report for user {} with filter {}", userInfo.getName(), filter); |
| try { |
| return billingDAO.getReport(userInfo, filter); |
| } catch (RuntimeException t) { |
| log.error("Cannot load billing report for user {} with filter {}", userInfo.getName(), filter, t); |
| throw new DlabException("Cannot load billing report: " + t.getLocalizedMessage(), t); |
| } |
| } |
| |
| protected String getValueOrEmpty(Document document, String key) { |
| String value = document.getString(key); |
| return value == null ? "" : value; |
| } |
| |
| String getHeaders(boolean full) { |
| return CSVFormatter.formatLine(getHeadersList(full), CSVFormatter.SEPARATOR); |
| } |
| |
| public Document getBillingReport(UserInfo userInfo, BillingFilter filter) { |
| filter.getUser().replaceAll(s -> s.equalsIgnoreCase(BaseBillingDAO.SHARED_RESOURCE_NAME) ? null : s); |
| return getReport(userInfo, filter); |
| } |
| |
| public byte[] downloadReport(UserInfo userInfo, BillingFilter filter) { |
| return prepareReport(getReport(userInfo, filter)).getBytes(); |
| } |
| |
| String prepareReport(Document document) { |
| try { |
| StringBuilder builder = |
| new StringBuilder(CSVFormatter.formatLine(Lists.newArrayList(getFirstLine(document)), |
| CSVFormatter.SEPARATOR, '\"')); |
| |
| Boolean full = (Boolean) document.get(BaseBillingDAO.FULL_REPORT); |
| builder.append(getHeaders(full)); |
| |
| @SuppressWarnings("unchecked") |
| List<Document> items = (List<Document>) document.get(BaseBillingDAO.ITEMS); |
| |
| items.forEach(d -> builder.append(getLine(full, d))); |
| |
| builder.append(getTotal(full, document)); |
| |
| return builder.toString(); |
| } catch (ParseException e) { |
| throw new DlabException("Cannot prepare CSV file", e); |
| } |
| } |
| |
| public abstract String getFirstLine(Document document) throws ParseException; |
| |
| public abstract List<String> getHeadersList(boolean full); |
| |
| public abstract String getLine(boolean full, Document document); |
| |
| public abstract String getTotal(boolean full, Document document); |
| |
| public abstract String getReportFileName(UserInfo userInfo, BillingFilter filter); |
| } |