java-online-course · EvVlF · Apr 24, 2022
diff --git a/java-data-handling-template.iml b/java-data-handling-template.iml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module org.jetbrains.idea.maven.project.MavenProjectsManager.isMavenModule="true" type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <output-test url="file://$MODULE_DIR$/target/test-classes" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/main/resources" type="java-resource" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="true" />
+      <excludeFolder url="file://$MODULE_DIR$/target" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter:5.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-api:5.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.apiguardian:apiguardian-api:1.1.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.opentest4j:opentest4j:1.2.0" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-commons:1.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-params:5.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-engine:5.5.2" level="project" />
+    <orderEntry type="library" scope="TEST" name="Maven: org.junit.platform:junit-platform-engine:1.5.2" level="project" />
+  </component>
+</module>
diff --git a/src/main/java/com/epam/izh/rd/online/repository/SimpleFileRepository.java b/src/main/java/com/epam/izh/rd/online/repository/SimpleFileRepository.java
@@ -1,5 +1,9 @@
 package com.epam.izh.rd.online.repository;
 
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.*;
+
 public class SimpleFileRepository implements FileRepository {
 
     /**
@@ -10,7 +14,16 @@ public class SimpleFileRepository implements FileRepository {
      */
     @Override
     public long countFilesInDirectory(String path) {
-        return 0;
+        long count = 0;
+        try {
+            Files.walk(Paths.get(path))
+                    .filter(Files::isRegularFile)
+                    .count();
+        } catch (IOException e) {
+            e.printStackTrace();
+            return 0;
+        }
+        return count;
     }
 
     /**
@@ -21,7 +34,16 @@ public long countFilesInDirectory(String path) {
      */
     @Override
     public long countDirsInDirectory(String path) {
-        return 0;
+        long count = 0;
+        try {
+            Files.walk(Paths.get(path))
+                    .filter(p -> p.toFile().isDirectory())
+                    .count();
+        } catch (Exception e) {
+            e.printStackTrace();
+            return 0;
+        }
+        return count;
     }
 
     /**
@@ -32,7 +54,22 @@ public long countDirsInDirectory(String path) {
      */
     @Override
     public void copyTXTFiles(String from, String to) {
-        return;
+        Path fromPath = Paths.get(from).normalize();
+        Path toPath = Paths.get(to).normalize();
+        if (toPath.getParent() != null) {
+            if (fromPath.endsWith(".txt") && (Files.notExists(toPath.getParent()))) {
+                try {
+                    Files.createDirectories(toPath.getParent());
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+                try {
+                    Files.copy(fromPath, toPath);
+                } catch (IOException e) {
+                    e.printStackTrace();
+                }
+            }
+        }
     }
 
     /**
@@ -44,9 +81,47 @@ public void copyTXTFiles(String from, String to) {
      */
     @Override
     public boolean createFile(String path, String name) {
-        return false;
+        boolean isCreateDir = false;
+        boolean isCreateFile = false;
+        Path dirPath = Paths.get(System.getProperty("user.dir") + File.separator + path).normalize();
+        Path filePath = Paths.get(dirPath + File.separator + name).normalize();
+
+        if (Files.notExists(dirPath)) {
+            try {
+                Files.createDirectories(dirPath);
+                isCreateDir = Files.exists(dirPath);
+            } catch (IOException e) {
+                isCreateDir = Files.exists(dirPath);
+                e.printStackTrace();
+            }
+            if (Files.notExists(filePath)) {
+                try {
+                    Files.createFile(filePath);
+                    isCreateFile = Files.exists(filePath);
+                } catch (IOException e) {
+                    isCreateFile = Files.exists(filePath);
+                    e.printStackTrace();
+                }
+            }
+
+        } else if (Files.exists(dirPath) && Files.notExists(filePath)) {
+            isCreateDir = Files.exists(dirPath);
+            try {
+                Files.createFile(filePath);
+                isCreateFile = Files.exists(filePath);
+            } catch (IOException e) {
+                isCreateFile = Files.exists(filePath);
+                e.printStackTrace();
+            }
+
+        } else {
+            isCreateDir = Files.exists(dirPath);
+            isCreateFile = Files.exists(filePath);
+        }
+        return (isCreateDir && isCreateFile);
     }
 
+
     /**
      * Метод считывает тело файла .txt из папки src/main/resources
      *
@@ -55,6 +130,13 @@ public boolean createFile(String path, String name) {
      */
     @Override
     public String readFileFromResources(String fileName) {
-        return null;
+        Path path = Paths.get("src/main/resources" + File.separator + fileName);
+        String read = "";
+        try {
+            read = Files.readAllLines(path).get(0);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return read;
     }
 }
diff --git a/src/main/java/com/epam/izh/rd/online/service/SimpleBigNumbersService.java b/src/main/java/com/epam/izh/rd/online/service/SimpleBigNumbersService.java
@@ -8,12 +8,15 @@ public class SimpleBigNumbersService implements BigNumbersService {
     /**
      * Метод делит первое число на второе с заданной точностью
      * Например 1/3 с точностью 2 = 0.33
+     *
      * @param range точность
      * @return результат
      */
     @Override
     public BigDecimal getPrecisionNumber(int a, int b, int range) {
-        return null;
+        BigDecimal aa = new BigDecimal(a);
+        BigDecimal bb = new BigDecimal(b);
+        return aa.divide(bb, range, BigDecimal.ROUND_HALF_UP);
     }
 
     /**
@@ -24,6 +27,10 @@ public BigDecimal getPrecisionNumber(int a, int b, int range) {
      */
     @Override
     public BigInteger getPrimaryNumber(int range) {
-        return null;
+        BigInteger temp = new BigInteger("2");
+        for (int i = 0; i < range; i++) {
+            temp = temp.nextProbablePrime();
+        }
+        return temp;
     }
 }
diff --git a/src/main/java/com/epam/izh/rd/online/service/SimpleDateService.java b/src/main/java/com/epam/izh/rd/online/service/SimpleDateService.java
@@ -2,7 +2,9 @@
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.time.Year;
 import java.time.format.DateTimeFormatter;
+import java.util.concurrent.TimeUnit;
 
 public class SimpleDateService implements DateService {
 
@@ -14,7 +16,9 @@ public class SimpleDateService implements DateService {
      */
     @Override
     public String parseDate(LocalDate localDate) {
-        return null;
+        DateTimeFormatter dmy = DateTimeFormatter.ofPattern("dd-MM-yyyy");
+        String date = localDate.format(dmy);
+        return date;
     }
 
     /**
@@ -25,7 +29,9 @@ public String parseDate(LocalDate localDate) {
      */
     @Override
     public LocalDateTime parseString(String string) {
-        return null;
+        DateTimeFormatter yMdhm = DateTimeFormatter.ofPattern("yyyy-MM-dd hh:mm");
+        LocalDateTime date = LocalDate.parse(string, yMdhm).atStartOfDay();
+        return date;
     }
 
     /**
@@ -37,7 +43,7 @@ public LocalDateTime parseString(String string) {
      */
     @Override
     public String convertToCustomFormat(LocalDate localDate, DateTimeFormatter formatter) {
-        return null;
+        return localDate.format(formatter);
     }
 
     /**
@@ -47,7 +53,12 @@ public String convertToCustomFormat(LocalDate localDate, DateTimeFormatter forma
      */
     @Override
     public long getNextLeapYear() {
-        return 0;
+        long yearForCheck = Year.now().getValue();
+        do {
+            yearForCheck++;
+        } while (!Year.isLeap(yearForCheck));
+
+        return yearForCheck;
     }
 
     /**
@@ -57,7 +68,8 @@ public long getNextLeapYear() {
      */
     @Override
     public long getSecondsInYear(int year) {
-        return 0;
+        long secondsInYear = TimeUnit.DAYS.toSeconds(Year.of(year).length());
+        return secondsInYear;
     }
 
 

diff --git a/src/main/java/com/epam/izh/rd/online/service/SimpleRegExpService.java b/src/main/java/com/epam/izh/rd/online/service/SimpleRegExpService.java
@@ -1,5 +1,13 @@
 package com.epam.izh.rd.online.service;
 
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 public class SimpleRegExpService implements RegExpService {
 
     /**
@@ -11,7 +19,20 @@ public class SimpleRegExpService implements RegExpService {
      */
     @Override
     public String maskSensitiveData() {
-        return null;
+        Pattern paymentAmountAndBalance = Pattern.compile("(?<=\\d{4}\\s)(\\d{4}\\s\\d{4})(?=\\s\\d{4})");
+        Path sensitivePath = Paths.get("src" + File.separator + "main" + File.separator + "resources" + File.separator + "sensitive_data.txt");
+        String read = "";
+        try {
+            read = Files.readAllLines(sensitivePath).get(0);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        Matcher source = paymentAmountAndBalance.matcher(read);
+        boolean isMatch = source.find();
+        if (isMatch) {
+            read = read.replaceAll(paymentAmountAndBalance.pattern().toString(), "\\*\\*\\*\\* \\*\\*\\*\\*");
+        }
+        return read;
     }
 
     /**
@@ -22,6 +43,24 @@ public String maskSensitiveData() {
      */
     @Override
     public String replacePlaceholders(double paymentAmount, double balance) {
-        return null;
+        int roundPaymentAmount = (int) Math.round(paymentAmount);
+        int roundBalance = (int) Math.round(balance);
+        Pattern paymentAmountAndBalance = Pattern.compile("\\$\\{payment_amount}|\\$\\{balance}");
+        String stringPaymentAmount = String.valueOf(roundPaymentAmount);
+        String stringBalance = String.valueOf(roundBalance);
+        Path sensitivePath = Paths.get("src" + File.separator + "main" + File.separator + "resources" + File.separator + "sensitive_data.txt");
+        String read = "";
+        try {
+            read = Files.readAllLines(sensitivePath).get(0);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        Matcher source = paymentAmountAndBalance.matcher(read);
+        boolean isMatch = source.find();
+        if (isMatch) {
+            read = read.replaceAll("\\$\\{payment_amount}", stringPaymentAmount)
+                    .replaceAll("\\$\\{balance}", stringBalance);
+        }
+        return read;
     }
 }