| /* |
| * 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.datalab.core; |
| |
| import com.epam.datalab.exceptions.InitializationException; |
| import com.epam.datalab.mongo.MongoConstants; |
| import com.epam.datalab.mongo.MongoDbConnection; |
| import com.google.common.base.MoreObjects; |
| import com.google.common.base.MoreObjects.ToStringHelper; |
| import com.mongodb.client.FindIterable; |
| import com.mongodb.client.model.UpdateOptions; |
| import org.apache.commons.lang3.StringUtils; |
| import org.bson.Document; |
| import org.bson.conversions.Bson; |
| |
| import java.io.IOException; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| import java.util.Date; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import static com.mongodb.client.model.Filters.and; |
| import static com.mongodb.client.model.Filters.eq; |
| import static com.mongodb.client.model.Filters.gte; |
| import static com.mongodb.client.model.Filters.or; |
| import static com.mongodb.client.model.Filters.regex; |
| |
| /** |
| * Provides loading and storing the working data of modules. |
| */ |
| public class ModuleData { |
| |
| public static final String ENTRIES_FIELD = "entries"; |
| private static final String ID_FIELD = "_id"; |
| private static final String MODIFICATION_DATE = "lastModificationDate"; |
| /** |
| * Date formatter. |
| */ |
| private final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSXXX"); |
| private final MongoDbConnection connection; |
| |
| private String id; |
| private Date modificationDate; |
| |
| /** |
| * Entries of data. |
| */ |
| private Map<String, String> entries = new HashMap<>(); |
| |
| /** |
| * Flag modification of entries. |
| */ |
| private boolean modified; |
| |
| /** |
| * Instantiate module data. |
| * |
| * @param connection the name of data file. |
| * @throws InitializationException |
| */ |
| public ModuleData(MongoDbConnection connection) { |
| this.connection = connection; |
| } |
| |
| /** |
| * Return <b>true</b> if any entries was modify. |
| */ |
| public boolean isModified() { |
| return modified; |
| } |
| |
| public void setId(String id) { |
| this.id = id; |
| } |
| |
| public void setModificationDate(Date modificationDate) { |
| this.modificationDate = modificationDate; |
| } |
| |
| /** |
| * Return the value for given key or <b>null</b> if value not found. |
| * |
| * @param key the key of entry. |
| */ |
| public String getString(String key) { |
| return entries.get(key); |
| } |
| |
| /** |
| * Return the date value for given key or <b>null</b> if value not found. |
| * |
| * @param key the key of entry. |
| * @throws ParseException |
| */ |
| public Date getDate(String key) throws ParseException { |
| String value = entries.get(key); |
| return (value == null ? null : dateFormat.parse(value)); |
| } |
| |
| /** |
| * Set value for given key or delete entry if the value is <b>null</b>. |
| * |
| * @param key the key of entry. |
| * @param value the value. |
| */ |
| public void set(String key, String value) { |
| if (StringUtils.equals(entries.get(key), value)) { |
| return; |
| } else if (value == null) { |
| entries.remove(key); |
| } else { |
| entries.put(key, value); |
| } |
| modified = true; |
| } |
| |
| /** |
| * Set value for given key or delete entry if the value is <b>null</b>. |
| * |
| * @param key the key of entry. |
| * @param value the date. |
| */ |
| public void set(String key, Date value) { |
| set(key, dateFormat.format(value)); |
| } |
| |
| public void store() { |
| final Document document = new Document().append(ID_FIELD, id).append(MODIFICATION_DATE, modificationDate).append(ENTRIES_FIELD, entries); |
| connection.getCollection(MongoConstants.BILLING_DATA_COLLECTION) |
| .updateOne(eq(ID_FIELD, id), new Document("$set", document), new UpdateOptions().upsert(true)); |
| modified = false; |
| } |
| |
| public boolean wasProcessed(String fileName, Date modificationDate, String datePrefix) { |
| final Bson filePerBillingPeriodCondition = and(regex(ID_FIELD, "^" + datePrefix), gte(MODIFICATION_DATE, |
| modificationDate)); |
| final Bson fileWithExactNameCondition = and(eq(ID_FIELD, fileName), gte(MODIFICATION_DATE, modificationDate)); |
| final FindIterable<Document> documents = connection.getCollection(MongoConstants.BILLING_DATA_COLLECTION) |
| .find(or(fileWithExactNameCondition, filePerBillingPeriodCondition)) |
| .limit(1); |
| return documents.iterator().hasNext(); |
| } |
| |
| public void closeMongoConnection() throws IOException { |
| connection.close(); |
| } |
| |
| |
| /** |
| * Returns a string representation of the object. |
| * |
| * @param self the object to generate the string for (typically this), used only for its class name. |
| */ |
| public ToStringHelper toStringHelper(Object self) { |
| return MoreObjects.toStringHelper(self) |
| .addValue(entries); |
| } |
| |
| @Override |
| public String toString() { |
| return toStringHelper(this) |
| .toString(); |
| } |
| } |