| /* |
| * 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.mongo; |
| |
| import com.epam.dlab.core.DBAdapterBase; |
| import com.epam.dlab.core.aggregate.UsageDataList; |
| import com.epam.dlab.exceptions.AdapterException; |
| import com.epam.dlab.exceptions.InitializationException; |
| import com.epam.dlab.exceptions.ParseException; |
| import com.epam.dlab.model.aws.ReportLine; |
| import com.epam.dlab.module.ModuleName; |
| import com.fasterxml.jackson.annotation.JsonClassDescription; |
| import com.fasterxml.jackson.annotation.JsonProperty; |
| import com.fasterxml.jackson.annotation.JsonTypeName; |
| import com.google.common.base.MoreObjects.ToStringHelper; |
| import com.mongodb.client.MongoCollection; |
| import com.mongodb.client.model.UpdateOptions; |
| import org.bson.Document; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.TreeSet; |
| |
| import static com.epam.dlab.mongo.MongoConstants.COLLECTION_SETTINGS; |
| import static com.epam.dlab.mongo.MongoConstants.FIELD_SERIVICE_BASE_NAME; |
| import static com.mongodb.client.model.Filters.eq; |
| |
| /** |
| * The adapter for file system. |
| */ |
| @JsonTypeName(ModuleName.ADAPTER_MONGO_DLAB) |
| @JsonClassDescription( |
| "Mongo DB adapter.\n" + |
| "Write converted data to the Mongo database. Can be used for AdapterOut only.\n" + |
| " - type: " + ModuleName.ADAPTER_MONGO_DLAB + "\n" + |
| " host: <host> - the host name or IP address.\n" + |
| " port: <port> - the port number.\n" + |
| " database: <database> - the name of database.\n" + |
| " username: <username> - the name of user.\n" + |
| " password: <password> - the password of user.\n" + |
| " [bufferSize: <number>] - the size of buffer, default is 10000 records.\n" + |
| " [upsert: <false | true>] - if true then upsert is enabled." |
| ) |
| public class AdapterMongoDb extends DBAdapterBase { |
| |
| /** |
| * The size of buffer for bulk insert. Not applicable for upsert mode. |
| */ |
| @JsonProperty |
| private int bufferSize = 10000; |
| |
| /** |
| * The upsert mode if set to <b>true</b>. |
| */ |
| @JsonProperty |
| private boolean upsert = false; |
| |
| @JsonProperty |
| private String serviceBaseName; |
| /** |
| * Custom connection to Mongo database. |
| */ |
| private MongoDbConnection connection; |
| /** |
| * Mongo collection. |
| */ |
| private MongoCollection<Document> collection; |
| /** |
| * DAO of DLab's resource type. |
| */ |
| private DlabResourceTypeDAO resourceTypeDAO; |
| /** |
| * Buffer for insert operations. |
| */ |
| private List<Document> buffer; |
| /** |
| * List of dates for delete from MongoDB. |
| */ |
| private UsageDataList usageDateList; |
| |
| public String getServiceBaseName() { |
| return serviceBaseName; |
| } |
| |
| public void setServiceBaseName(String serviceBaseName) { |
| this.serviceBaseName = serviceBaseName; |
| } |
| |
| /** |
| * Return the size of buffer for bulk insert. |
| */ |
| public int getBufferSize() { |
| return bufferSize; |
| } |
| |
| /** |
| * Set the size of buffer for bulk insert. |
| * |
| * @throws InitializationException |
| */ |
| public void setBufferSize(int bufferSize) throws InitializationException { |
| if (upsert && bufferSize <= 0) { |
| throw new InitializationException("The bufferSize must be greater than zero when upsert mode is switched" + |
| " " + |
| "on"); |
| } |
| this.bufferSize = bufferSize; |
| } |
| |
| /** |
| * Return the <b>true</b> if upsert mode switched on. |
| */ |
| public boolean isUpsert() { |
| return upsert; |
| } |
| |
| /** |
| * Set the upsert mode. |
| * |
| * @throws InitializationException |
| */ |
| public void setUpsert(boolean upsert) throws InitializationException { |
| if (upsert && bufferSize <= 0) { |
| throw new InitializationException("Upsert mode cannot be enabled if the bufferSize is zero or less than " + |
| "zero"); |
| } |
| this.upsert = upsert; |
| } |
| |
| @Override |
| public void open() throws AdapterException { |
| if (connection == null) { |
| if (getMode() != Mode.WRITE) { |
| throw new AdapterException("Mode of " + getType() + " adapter may be " + Mode.WRITE + " only."); |
| } |
| connection = new MongoDbConnection(getHost(), getPort(), getDatabase(), getUsername(), getPassword()); |
| setServiceBaseName(); |
| collection = connection.getCollection(MongoConstants.COLLECTION_BILLING); |
| try { |
| resourceTypeDAO = new DlabResourceTypeDAO(connection); |
| } catch (InitializationException e) { |
| throw new AdapterException("Cannot initialize billing transformer to DLab format. " + e.getLocalizedMessage(), e); |
| } |
| |
| connection.createBillingIndexes(); |
| usageDateList = new UsageDataList(); |
| buffer = (upsert || bufferSize > 0 ? new ArrayList<>(bufferSize) : null); |
| } else { |
| throw new AdapterException("Connection is already opened"); |
| } |
| } |
| |
| private void setServiceBaseName() { |
| connection.getCollection(COLLECTION_SETTINGS) |
| .updateOne(eq("_id", FIELD_SERIVICE_BASE_NAME), new Document("$set", new Document("value", serviceBaseName)), |
| new UpdateOptions().upsert(true)); |
| } |
| |
| @Override |
| public void close() throws AdapterException { |
| if (connection != null) { |
| if (upsert) { |
| connection.upsertRows(collection, buffer, usageDateList); |
| } else if (bufferSize > 0) { |
| connection.insertRows(collection, buffer); |
| } |
| buffer = null; |
| updateTotal(); |
| |
| try { |
| connection.close(); |
| } catch (Exception e) { |
| throw new AdapterException("Cannot close connection to database " + |
| getDatabase() + ". " + e.getLocalizedMessage(), e); |
| } finally { |
| connection = null; |
| } |
| } |
| } |
| |
| @Override |
| public String getEntryName() { |
| return MongoConstants.COLLECTION_BILLING; |
| } |
| |
| @Override |
| public String readLine() throws AdapterException { |
| throw new AdapterException("Unimplemented method called."); |
| } |
| |
| @Override |
| public void writeHeader(List<String> header) { |
| // Nothing to do |
| } |
| |
| @Override |
| public Document writeRow(ReportLine row) throws AdapterException { |
| Document document; |
| try { |
| document = resourceTypeDAO.transform(row); |
| } catch (ParseException e) { |
| throw new AdapterException("Cannot transform report line. " + e.getLocalizedMessage(), e); |
| } |
| |
| return document; |
| } |
| |
| /** |
| * Update total cost of resources. |
| */ |
| private void updateTotal() throws AdapterException { |
| TreeSet<String> months = new TreeSet<>(); |
| try { |
| for (String date : usageDateList) { |
| months.add(date.substring(0, 7)); |
| } |
| for (String month : months) { |
| resourceTypeDAO.updateMonthTotalCost(month); |
| } |
| } catch (Exception e) { |
| throw new AdapterException("Cannot update total monthly cost. " + e.getLocalizedMessage(), e); |
| } |
| } |
| |
| @Override |
| public ToStringHelper toStringHelper(Object self) { |
| return super.toStringHelper(self) |
| .add("bufferSize", bufferSize) |
| .add("upsert", upsert); |
| } |
| } |