java-online-course · Babaylov1994 · May 4, 2021
diff --git a/src/main/java/com/epam/izh/rd/online/repository/FileRepository.java b/src/main/java/com/epam/izh/rd/online/repository/FileRepository.java
@@ -1,5 +1,8 @@
 package com.epam.izh.rd.online.repository;
 
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
 public interface FileRepository {
 
 
@@ -9,8 +12,8 @@ public interface FileRepository {
 
     void copyTXTFiles(String from, String to);
 
-    boolean createFile(String path, String name);
+    boolean createFile(String path, String name) throws IOException;
 
-    String readFileFromResources(String fileName);
+    String readFileFromResources(String fileName) throws IOException;
 
 }
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.*;
+import java.net.URL;
+import java.nio.file.Files;
+
 public class SimpleFileRepository implements FileRepository {
 
     /**
@@ -10,7 +14,16 @@ public class SimpleFileRepository implements FileRepository {
      */
     @Override
     public long countFilesInDirectory(String path) {
-        return 0;
+        long result = 0;
+        File dir = new File("src/main/resources/" + path);
+        File[] arr = dir.listFiles();
+        if (dir.isDirectory()) {
+            for (File file : arr) {
+                result += countFilesInDirectory(path + "/" + file.getName());
+            }
+        } else
+            result++;
+        return result;
     }
 
     /**
@@ -21,7 +34,15 @@ public long countFilesInDirectory(String path) {
      */
     @Override
     public long countDirsInDirectory(String path) {
-        return 0;
+        long result = 0;
+        File dir = new File("src/main/resources/" + path);
+        if (dir.isDirectory()) {
+            result++;
+            for (File file : dir.listFiles()) {
+                result += countDirsInDirectory(path + "/" + file.getName());
+            }
+        }
+        return result;
     }
 
     /**
@@ -32,7 +53,16 @@ public long countDirsInDirectory(String path) {
      */
     @Override
     public void copyTXTFiles(String from, String to) {
-        return;
+        File dirFrom = new File(from);
+        File dirTo = new File(to);
+        if (!dirTo.getParentFile().exists()) {
+            dirTo.getParentFile().mkdirs();
+        }
+        try {
+            Files.copy(dirFrom.getAbsoluteFile().toPath(), dirTo.getAbsoluteFile().toPath());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
     /**
@@ -44,6 +74,17 @@ public void copyTXTFiles(String from, String to) {
      */
     @Override
     public boolean createFile(String path, String name) {
+        URL url = getClass().getResource("/");
+        File dir = new File(url.getPath() + "/" + path);
+        if (!dir.exists()) {
+            dir.mkdir();
+        }
+        File file = new File(dir.getPath() + "/" + name);
+        try {
+            return file.createNewFile();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
         return false;
     }
 
@@ -54,7 +95,9 @@ public boolean createFile(String path, String name) {
      * @return контент
      */
     @Override
-    public String readFileFromResources(String fileName) {
-        return null;
+    public String readFileFromResources(String fileName) throws IOException {
+        BufferedReader reader = new BufferedReader(new FileReader("src/main/resources/" + fileName));
+
+        return reader.readLine();
     }
 }
diff --git a/src/main/java/com/epam/izh/rd/online/service/RegExpService.java b/src/main/java/com/epam/izh/rd/online/service/RegExpService.java
@@ -1,8 +1,11 @@
 package com.epam.izh.rd.online.service;
 
+import java.io.FileNotFoundException;
+import java.io.IOException;
+
 public interface RegExpService {
 
-    String maskSensitiveData();
+    String maskSensitiveData() throws IOException;
 
-    String replacePlaceholders(double paymentAmount, double balance);
+    String replacePlaceholders(double paymentAmount, double balance) throws IOException;
 }
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
@@ -2,6 +2,9 @@
 
 import java.math.BigDecimal;
 import java.math.BigInteger;
+import java.util.Arrays;
+
+import static java.math.RoundingMode.HALF_UP;
 
 public class SimpleBigNumbersService implements BigNumbersService {
 
@@ -13,7 +16,12 @@ public class SimpleBigNumbersService implements BigNumbersService {
      */
     @Override
     public BigDecimal getPrecisionNumber(int a, int b, int range) {
-        return null;
+        BigDecimal result;
+        BigDecimal ba = new BigDecimal(a);
+        BigDecimal bb = new BigDecimal(b);
+
+        result = ba.divide(bb, range, HALF_UP);
+        return result;
     }
 
     /**
@@ -24,6 +32,11 @@ public BigDecimal getPrecisionNumber(int a, int b, int range) {
      */
     @Override
     public BigInteger getPrimaryNumber(int range) {
-        return null;
+        BigInteger result = new BigInteger("2");
+        for (int i = 0; i < range; i++) {
+            result = result.nextProbablePrime();
+        }
+        return result;
+
     }
 }
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
@@ -1,8 +1,11 @@
 package com.epam.izh.rd.online.service;
 
+import java.text.SimpleDateFormat;
 import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.time.Year;
 import java.time.format.DateTimeFormatter;
+import java.util.Locale;
 
 public class SimpleDateService implements DateService {
 
@@ -14,7 +17,8 @@ public class SimpleDateService implements DateService {
      */
     @Override
     public String parseDate(LocalDate localDate) {
-        return null;
+        String result = localDate.format(DateTimeFormatter.ofPattern("dd-MM-yyyy"));
+        return result;
     }
 
     /**
@@ -25,7 +29,9 @@ public String parseDate(LocalDate localDate) {
      */
     @Override
     public LocalDateTime parseString(String string) {
-        return null;
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm");
+        LocalDateTime result = LocalDateTime.parse(string, formatter);
+        return result;
     }
 
     /**
@@ -37,7 +43,8 @@ public LocalDateTime parseString(String string) {
      */
     @Override
     public String convertToCustomFormat(LocalDate localDate, DateTimeFormatter formatter) {
-        return null;
+        String result = localDate.format(formatter);
+        return result;
     }
 
     /**
@@ -47,7 +54,15 @@ public String convertToCustomFormat(LocalDate localDate, DateTimeFormatter forma
      */
     @Override
     public long getNextLeapYear() {
-        return 0;
+        Year ldNow = Year.now();
+        String year = ldNow.format(DateTimeFormatter.ofPattern("yyyy"));
+        Long result = Long.parseLong(year);
+        while (true) {
+            if (Year.isLeap(result)) {
+                return result;
+            } else
+                result++;
+        }
     }
 
     /**
@@ -57,7 +72,11 @@ public long getNextLeapYear() {
      */
     @Override
     public long getSecondsInYear(int year) {
-        return 0;
+        Year yea = Year.of(year);
+        if (yea.isLeap()) {
+            return (long) 366 * 24 * 3600;
+        } else
+            return (long) 365 * 24 * 3600;
     }
 
 

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 +1,11 @@
 package com.epam.izh.rd.online.service;
 
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 public class SimpleRegExpService implements RegExpService {
 
     /**
@@ -10,8 +16,17 @@ public class SimpleRegExpService implements RegExpService {
      * @return обработанный текст
      */
     @Override
-    public String maskSensitiveData() {
-        return null;
+    public String maskSensitiveData() throws IOException {
+        BufferedReader reader = new BufferedReader(new FileReader("src/main/resources/sensitive_data.txt"));
+        String content;
+        String result = "";
+        while ((content = reader.readLine()) != null){
+            result += content;
+        }
+        Pattern pat = Pattern.compile("(\\s\\d{4}\\s)(\\d{4}\\s)(\\d{4}\\s)(\\d{4}\\s)");
+        Matcher match = pat.matcher(result);
+        result = match.replaceAll("$1**** **** $4");
+        return result;
     }
 
     /**
@@ -21,7 +36,21 @@ public String maskSensitiveData() {
      * @return обработанный текст
      */
     @Override
-    public String replacePlaceholders(double paymentAmount, double balance) {
-        return null;
+    public String replacePlaceholders(double paymentAmount, double balance) throws IOException {
+        BufferedReader reader = new BufferedReader(new FileReader("src/main/resources/sensitive_data.txt"));
+        String content;
+        String result = "";
+        while ((content = reader.readLine()) != null){
+            result += content;
+        }
+        Pattern patPay = Pattern.compile("\\W\\{.{14}}");
+        Matcher match = patPay.matcher(result);
+        result = match.replaceAll(String.valueOf((int) paymentAmount));
+
+        Pattern patBalance = Pattern.compile("\\W\\{.{7}}");
+        Matcher matchBalance = patBalance.matcher(result);
+        result = matchBalance.replaceAll(String.valueOf((int) balance));
+
+        return result;
     }
 }
diff --git a/src/main/java/com/epam/izh/rd/online/service/SimpleTextService.java b/src/main/java/com/epam/izh/rd/online/service/SimpleTextService.java
@@ -13,7 +13,7 @@ public class SimpleTextService implements TextService {
      */
     @Override
     public String removeString(String base, String remove) {
-        return null; //TODO
+        return base.replace(remove, ""); //TODO
     }
 
     /**
@@ -24,7 +24,8 @@ public String removeString(String base, String remove) {
      */
     @Override
     public boolean isQuestionString(String text) {
-        return false; //TODO
+
+        return text.endsWith("?"); //TODO
     }
 
     /**
@@ -35,7 +36,12 @@ public boolean isQuestionString(String text) {
      */
     @Override
     public String concatenate(String... elements) {
-        return null; //TODO
+        String res = "";
+        String[] result = elements;
+        for (String str : result) {
+            res = res + str;
+        }
+        return res; //TODO
     }
 
     /**
@@ -47,7 +53,15 @@ public String concatenate(String... elements) {
      */
     @Override
     public String toJumpCase(String text) {
-        return null; //TODO
+        char[] arr = text.toCharArray();
+        for (int i = 0; i < arr.length; i++) {
+            if (i % 2 == 0) {
+                arr[i] = Character.toLowerCase(arr[i]);
+            } else
+                arr[i] = Character.toUpperCase(arr[i]);
+        }
+
+        return String.valueOf(arr); //TODO
     }
 
     /**
@@ -59,6 +73,12 @@ public String toJumpCase(String text) {
      */
     @Override
     public boolean isPalindrome(String string) {
-       return false; //TODO
+
+        if (string.equals("")) {
+            return false;
+        }
+        return string.replaceAll("\\s", "")
+                .equalsIgnoreCase(new StringBuilder(string.replaceAll("\\s", ""))
+                        .reverse().toString());  //TODO
     }
 }
diff --git a/src/test/java/com/epam/izh/rd/online/FileRepositoryTest.java b/src/test/java/com/epam/izh/rd/online/FileRepositoryTest.java
@@ -73,15 +73,15 @@ void testCopyTXTFiles() {
 
   @Test
   @DisplayName("Тест метода FileRepository.createFile(String path)")
-  void testCreateFile() {
+  void testCreateFile() throws IOException {
     fileRepository.createFile(TEST_DIR_CREATE_PATH, TEST_FILE_TO_CREATE);
 
     assertTrue(getFile(TEST_DIR_CREATE_PATH + "/" + TEST_FILE_TO_CREATE).exists());
   }
 
   @Test
   @DisplayName("Тест метода FileRepository.readFileFromResources(String fileName)")
-  void testReadFileFromResources() {
+  void testReadFileFromResources() throws IOException {
     assertEquals("Ya-hoo!", fileRepository.readFileFromResources("readme.txt"));
   }