src/main/java/ru/redrise/marinesco/ThreadPoolTaskExecutorSettings.java

@@ -1,19 +0,0 @@
-package ru.redrise.marinesco;
-
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.core.task.TaskExecutor;
-import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
-
-@Configuration
-public class ThreadPoolTaskExecutorSettings {
-    @Bean
-    public TaskExecutor configTaskExecutor(){
-        final ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
-        executor.setCorePoolSize(8);
-        executor.setMaxPoolSize(16);
-        //executor.setQueueCapacity(50);
-
-        return executor;
-    }
-}

src/main/java/ru/redrise/marinesco/data/AuthorRepository.java

@@ -2,14 +2,18 @@ package ru.redrise.marinesco.data;
 
 import java.util.Optional;
 
-import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.repository.CrudRepository;
 import org.springframework.stereotype.Repository;
 
 import ru.redrise.marinesco.library.Author;
 import java.util.List;
 
+
+
+
+
 @Repository
-public interface AuthorRepository extends JpaRepository<Author, Long>{  
+public interface AuthorRepository extends CrudRepository<Author, Long>{  
     Optional<Author> findByAuthorName(String authorName);
     List<Author> findByAuthorNameContainingIgnoreCase(String authorName);
 }

src/main/java/ru/redrise/marinesco/data/BookRepository.java

@@ -2,7 +2,7 @@ package ru.redrise.marinesco.data;
 
 import java.util.List;
 
-import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.repository.CrudRepository;
 import org.springframework.stereotype.Repository;
 
 import ru.redrise.marinesco.library.Author;
@@ -12,7 +12,7 @@ import ru.redrise.marinesco.library.Book;
 
 
 @Repository
-public interface BookRepository extends JpaRepository<Book, Integer>{   
+public interface BookRepository extends CrudRepository<Book, Integer>{   
     List<Book> findBySeriesContainingIgnoreCase(String title);
     List<Book> findByTitleContainingIgnoreCase(String title);
 

src/main/java/ru/redrise/marinesco/data/GenreRepository.java

@@ -1,11 +1,11 @@
 package ru.redrise.marinesco.data;
 
-import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.repository.CrudRepository;
 import org.springframework.stereotype.Repository;
 
 import ru.redrise.marinesco.library.Genre;
 
 
 @Repository
-public interface GenreRepository extends JpaRepository<Genre, String>{   
+public interface GenreRepository extends CrudRepository<Genre, String>{   
 }

src/main/java/ru/redrise/marinesco/library/Author.java

@@ -1,6 +1,9 @@
 package ru.redrise.marinesco.library;
 
+import jakarta.persistence.Column;
 import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import lombok.AccessLevel;
 import lombok.Data;
@@ -10,12 +13,16 @@ import lombok.NoArgsConstructor;
 @Entity
 @NoArgsConstructor(access = AccessLevel.PRIVATE, force = true)
 public class Author {
+//    private static final long serialVersionUID = 1L;
+    
     @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
     private Long id;
+
+    @Column(unique=true)
     private String authorName;
 
     public Author(String name){
         this.authorName = name;
-        this.id = (long) name.hashCode();
     }
 }

src/main/java/ru/redrise/marinesco/library/Book.java

@@ -4,7 +4,6 @@ import java.nio.charset.StandardCharsets;
 import java.time.LocalDate;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Set;
 
 import jakarta.persistence.Entity;
 import jakarta.persistence.Id;
@@ -15,6 +14,8 @@ import lombok.Data;
 import lombok.NoArgsConstructor;
 import lombok.extern.slf4j.Slf4j;
 import ru.redrise.marinesco.RainbowDump;
+import ru.redrise.marinesco.data.AuthorRepository;
+import ru.redrise.marinesco.data.GenreRepository;
 
 @Slf4j
 @Entity
@@ -49,8 +50,8 @@ public class Book {
 
     public Book(byte[] line,
             String container,
-            Set<Author> authorsCollection,
-            Set<Genre> genresCollection,
+            AuthorRepository authorRepository,
+            GenreRepository genreRepository,
             Long libraryId,
             String libraryVersion) throws Exception {
         // AUTHOR;GENRE;TITLE;SERIES;SERNO;FILE;SIZE;LIBID;DEL;EXT;DATE;
@@ -61,8 +62,8 @@ public class Book {
         this.container = container + ".zip";
         this.authors = new ArrayList<>();
         this.genres = new ArrayList<>();
-        parseAuthors(authorsCollection);
-        parseGenere(genresCollection);
+        parseAuthors(authorRepository);
+        parseGenere(genreRepository);
         this.title = parseNextString();
         this.series = parseNextString();
         this.serNo = parseNextString();
@@ -95,7 +96,7 @@ public class Book {
          */
     }
 
-    private void parseAuthors(Set<Author> authorsCollection) throws Exception {
+    private void parseAuthors(AuthorRepository authorRepository) throws Exception {
         for (; position < line.length; position++) {
             if (line[position] == 0x04) {
                 String allAuthors = new String(line, 0, position, StandardCharsets.UTF_8);
@@ -103,9 +104,8 @@ public class Book {
                 for (String authorName : allAuthors.split(":")) {
                     authorName = authorName.replaceAll(",", " ").trim();
                     if (!authorName.equals("")) {
-                        Author author = new Author(authorName);
-                        authorsCollection.add(author);
-                        authors.add(author);
+                        Author author = authorRepository.findByAuthorName(authorName).orElse(new Author(authorName));
+                        authors.add(authorRepository.save(author));
                     }
                 }
 
@@ -117,15 +117,14 @@ public class Book {
         throw new Exception("Invalid 'inp' file format (parse Authors)");
     }
 
-    private void parseGenere(Set<Genre> genresCollection) throws Exception {
+    private void parseGenere(GenreRepository genreRepository) throws Exception {
         for (int i = position; i < line.length; i++) {
             if (line[i] == 0x04) {
                 String allGenres = new String(line, position, i - position, StandardCharsets.UTF_8);
 
                 for (String genreName : allGenres.split(":")) {
                     Genre genre = new Genre(genreName);
-                    genresCollection.add(genre);
-                    genres.add(genre);
+                    genres.add(genreRepository.save(genre));
                 }
 
                 position = i + 1;

src/main/java/ru/redrise/marinesco/library/InpxLibraryMetadataScanner.java

@@ -1,47 +0,0 @@
-package ru.redrise.marinesco.library;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.nio.charset.StandardCharsets;
-import java.util.zip.ZipEntry;
-import java.util.zip.ZipInputStream;
-
-import ru.redrise.marinesco.data.LibraryMetadataRepository;
-
-public class InpxLibraryMetadataScanner {
-    private InpxLibraryMetadataScanner() { }
-
-    public static LibraryMetadata saveFromFile(File inpxFile, LibraryMetadataRepository repository) throws Exception {
-        LibraryMetadata libraryMetadata = new LibraryMetadata();
-
-        try (ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(inpxFile))) {
-            ZipEntry zipEntry;
-            
-            while ((zipEntry = zipInputStream.getNextEntry()) != null) {
-                if (isCollection(zipEntry))
-                    libraryMetadata.setCollectionInfo(readPlainText(zipInputStream));
-                else if (isVersion(zipEntry))
-                    libraryMetadata.setVersionInfo(readPlainText(zipInputStream));
-            }
-        }
-
-        return repository.save(libraryMetadata);
-    }
-
-    private static boolean isCollection(ZipEntry zipEntry) {
-        return zipEntry.getName().toLowerCase().contains("collection.info");
-    }
-
-    private static boolean isVersion(ZipEntry zipEntry){
-        return zipEntry.getName().toLowerCase().contains("version.info");
-    }
-
-    private static String readPlainText(ZipInputStream zipInputStream) throws Exception {
-        byte[] content = new byte[1024];
-        StringBuilder stringBuilder = new StringBuilder();
-        while (zipInputStream.read(content) > 0)
-            stringBuilder.append(new String(content, StandardCharsets.UTF_8));
-
-        return stringBuilder.toString();
-    }
-}

src/main/java/ru/redrise/marinesco/library/InpxScanner.java

@@ -3,21 +3,12 @@ package ru.redrise.marinesco.library;
 import java.io.File;
 import java.io.FileInputStream;
 import java.nio.ByteBuffer;
-import java.time.LocalDateTime;
-import java.time.format.DateTimeFormatter;
-import java.time.temporal.ChronoUnit;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
+import java.nio.charset.StandardCharsets;
 import java.util.stream.Stream;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
 import org.springframework.core.io.FileSystemResource;
-import org.springframework.core.task.TaskExecutor;
 import org.springframework.stereotype.Component;
 
 import lombok.extern.slf4j.Slf4j;
@@ -29,11 +20,12 @@ import ru.redrise.marinesco.settings.ApplicationSettings;
 
 @Slf4j
 @Component
-public class InpxScanner {
-    private static volatile String lastRunErrors = "";
-    private static LocalDateTime lastRunTime = LocalDateTime.of(1970, 01, 01, 0, 0, 0);
+public class InpxScanner implements Runnable {
 
-    private TaskExecutor executor;
+    private static volatile Thread parser;
+    private static volatile String lastRunErrors;
+
+    private LibraryMetadata libraryMetadata;
     private LibraryMetadataRepository libraryMetadataRepository;
     private AuthorRepository authorRepository;
     private GenreRepository genreRepository;
@@ -41,13 +33,11 @@ public class InpxScanner {
 
     private String filesLocation;
 
-    public InpxScanner(TaskExecutor executor,
-            ApplicationSettings applicationSettings,
+    public InpxScanner(ApplicationSettings applicationSettings,
             AuthorRepository authorRepository,
             GenreRepository genreRepository,
             BookRepository bookRepository,
             LibraryMetadataRepository libraryMetadataRepository) {
-        this.executor = executor;
         this.filesLocation = applicationSettings.getFilesLocation();
         this.authorRepository = authorRepository;
         this.genreRepository = genreRepository;
@@ -56,70 +46,67 @@ public class InpxScanner {
     }
 
     /*
-     * @return true if executed, false otherwise
+     * @return true if executed, false if already running
      */
     public boolean reScan() {
-
-        LocalDateTime currentDateTime = LocalDateTime.now();
-
-        if (ChronoUnit.MINUTES.between(lastRunTime, currentDateTime) < 5) {
-            lastRunErrors = "Too frequent requests. Please whait 5 min. Last attmpt: "
-                    + lastRunTime.format(DateTimeFormatter.ofPattern("DD.MM.YYYY HH:mm:ss"));
-            return false;
-        }
-        lastRunTime = currentDateTime;
-        lastRunErrors = "";
-
-        Thread scanThread = new Thread(() -> {
-            try {
-                File inpxFile = getInpxFile();
-                log.debug("INPX file found: " + inpxFile.getName());
-
-                LibraryMetadata libMetadata = InpxLibraryMetadataScanner.saveFromFile(inpxFile,
-                        libraryMetadataRepository);
-
-                Long libId = libMetadata.getId();
-                String libVersion = libMetadata.getVersion();
-                HashMap<String, byte[]> inpEntries = collectInp(inpxFile);
-
-                for (Map.Entry<String, byte[]> entry : inpEntries.entrySet())
-                    executor.execute(new InpxWorker(entry, libId, libVersion));
-            } catch (Exception e) {
-                log.error("{}", e);
-                lastRunErrors = lastRunErrors + " " + e.getMessage();
-            }
-        });
-
-        scanThread.start();
-
+        if (parser == null || !parser.isAlive()) {
+            parser = new Thread(this);
+            parser.start();
             return true;
         }
+        return false;
+    }
 
-    private File getInpxFile() throws Exception {
+    @Override
+    public void run() {
+        try {
             final FileSystemResource libraryLocation = new FileSystemResource(filesLocation);
-        return Stream.of(libraryLocation.getFile().listFiles())
+
+            final File inpxFile = Stream.of(libraryLocation.getFile().listFiles())
                     .filter(file -> file.getName().endsWith(".inpx"))
                     .findFirst()
                     .get();
+
+            log.debug("INPX file found as " + inpxFile.getName());
+
+            getLibraryMetadata(inpxFile);
+            parseInp(inpxFile);
+            // Once multiple libraries imlemented, add here 'delete recrodds with old
+            // version of the library'
+            // TODO: fix lirary ID changes on every update: add selector on the front
+        } catch (Exception e) {
+            log.error("{}", e);
+            InpxScanner.lastRunErrors = e.getMessage();
+        }
     }
 
-    private HashMap<String, byte[]> collectInp(File inpxFile) throws Exception {
-        final HashMap<String, byte[]> inpEntries = new HashMap<>();
+    private void getLibraryMetadata(File inpxFile) throws Exception {
+        libraryMetadata = new LibraryMetadata();
+
         try (ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(inpxFile))) {
-            ZipEntry zipEntry;
-            while ((zipEntry = zipInputStream.getNextEntry()) != null) {
-                if (isInp(zipEntry)) {
-                    String zipEntryName = zipEntry.getName();
-                    zipEntryName = zipEntryName.substring(0, zipEntryName.lastIndexOf('.'));
-                    inpEntries.put(zipEntryName, inpToByteArray(zipInputStream, zipEntry.getSize()));
+            ZipEntry zipEntry = zipInputStream.getNextEntry();
+
+            while (zipEntry != null) {
+                if (zipEntry.getName().toLowerCase().contains("collection.info"))
+                    libraryMetadata.setCollectionInfo(readPlainText(zipInputStream));
+
+                else if (zipEntry.getName().toLowerCase().contains("version.info"))
+                    libraryMetadata.setVersionInfo(readPlainText(zipInputStream));
+
+                zipEntry = zipInputStream.getNextEntry();
             }
         }
-        }
-        return inpEntries;
-    }
 
-    private boolean isInp(ZipEntry zipEntry) {
-        return zipEntry.getName().toLowerCase().endsWith(".inp");
+        libraryMetadata = libraryMetadataRepository.save(libraryMetadata);
+    }
+
+    private String readPlainText(ZipInputStream zipInputStream) throws Exception {
+        byte[] content = new byte[1024];
+        StringBuilder stringBuilder = new StringBuilder();
+        while (zipInputStream.read(content) > 0)
+            stringBuilder.append(new String(content, StandardCharsets.UTF_8));
+
+        return stringBuilder.toString();
     }
 
     private byte[] inpToByteArray(ZipInputStream stream, long fileSize) throws Exception {
@@ -146,50 +133,51 @@ public class InpxScanner {
         return inpByteBuffer.array();
     }
 
-    private boolean isNextCarriageReturn(int i, byte[] content) {
-        return i + 1 < content.length && (content[i + 1] == '\r');
+    private void parseInp(File inpxFile) throws Exception {
+        /*
+        log.warn("REMOVE TEMPORARY SOLUTION - BREAKER");
+        log.warn("REMOVE TEMPORARY SOLUTION - BREAKER");
+        log.warn("REMOVE TEMPORARY SOLUTION - BREAKER");
+        boolean breaker = false;
+        */
+        try (ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(inpxFile))) {
+            ZipEntry zipEntry = zipInputStream.getNextEntry();
+
+            while (zipEntry != null) {
+                if (zipEntry.getName().toLowerCase().endsWith(".inp")) {
+                    /*
+                    if (breaker) {
+                        zipEntry = zipInputStream.getNextEntry();
+                        continue;
+                    }
+                    breaker = true;
+                    // */
+                    byte[] content = inpToByteArray(zipInputStream, zipEntry.getSize());
+                    parseInpContent(content, zipEntry.getName());
+                }
+                zipEntry = zipInputStream.getNextEntry();
+            }
+        }
     }
 
-    public static String getLastRunErrors() {
-        return lastRunErrors;
-    }
+    private void parseInpContent(byte[] content, String name) throws Exception {
+        name = name.substring(0, name.lastIndexOf('.'));
 
-    private class InpxWorker implements Runnable {
-
-        private Long libraryId;
-        private String libraryVersion;
-        private String name;
-        private byte[] content;
-
-        private InpxWorker(Map.Entry<String, byte[]> entry,
-                Long libraryId,
-                String libraryVersion) {
-            this.libraryId = libraryId;
-            this.libraryVersion = libraryVersion;
-            this.name = entry.getKey();
-            this.content = entry.getValue();
-        }
-
-        @Override
-        public void run() {
-            final List<Book> books = new ArrayList<>();
-            final Set<Author> authors = new HashSet<>();
-            final Set<Genre> genres = new HashSet<>();
-            try {
         log.info("FILE RELATED " + name);
-
         int lastIndex = 0;
         for (int i = 0; i < content.length; i++) {
             if (content[i] == '\n') {
                 byte[] line = new byte[i - lastIndex];
                 System.arraycopy(content, lastIndex, line, 0, i - lastIndex - 1);
 
-                        books.add(new Book(line,
+                Book book = new Book(line,
                         name,
-                                authors,
-                                genres,
-                                libraryId,
-                                libraryVersion));
+                        authorRepository,
+                        genreRepository,
+                        libraryMetadata.getId(),
+                        libraryMetadata.getVersion());
+
+                bookRepository.save(book);
 
                 if (isNextCarriageReturn(i, content)) {
                     i += 2;
@@ -198,18 +186,13 @@ public class InpxScanner {
                     lastIndex = ++i;
             }
         }
-                saveAll(books, authors, genres);
-            } catch (Exception e) {
-                log.error("{}", e);
-                lastRunErrors = lastRunErrors + " " + e.getMessage();
-            }
-        }
     }
 
-    /* REMINDER: DO NOT PUT THIS SHIT INTO THREAD */
-    private synchronized void saveAll(List<Book> books, Set<Author> authors, Set<Genre> genres) {
-        authorRepository.saveAll(authors);
-        genreRepository.saveAll(genres);
-        bookRepository.saveAll(books);
+    private boolean isNextCarriageReturn(int i, byte[] content) {
+        return i + 1 < content.length && (content[i + 1] == '\r');
+    }
+
+    public static String getLastRunErrors() {
+        return lastRunErrors;
     }
 }

src/main/java/ru/redrise/marinesco/settings/SettingsController.java

@@ -37,7 +37,7 @@ public class SettingsController {
     
     @ModelAttribute(name = "lastScanErrors")
     public String setLastRunErrors(){
-        if (InpxScanner.getLastRunErrors() != "")
+        if (InpxScanner.getLastRunErrors() != null)
             return "Last run attempt failed: "+InpxScanner.getLastRunErrors();
         return null;
     }
@@ -56,7 +56,7 @@ public class SettingsController {
         if (inpxScanner.reScan())
             redirectAttributes.addAttribute("rescanOk", "Rescan started");
         else
-            redirectAttributes.addAttribute("rescanError", "Rescan could be currently in progress");
+            redirectAttributes.addAttribute("rescanError", "Rescan is currently in progress");
 
         return redirectView;
     }

src/main/resources/application.yml

@@ -5,18 +5,16 @@ spring:
         driver-class-name: org.h2.Driver  
         generate-unique-name: false
         name: marinesco
-        url: jdbc:h2:mem:marinesco
-#        url: jdbc:h2:file:/tmp/h2
+#        url: jdbc:h2:mem:marinesco
+        url: jdbc:h2:file:/tmp/h2
         username: sa
         password:
     jpa:
         properties:
             hibernate:
                 database-platform: org.hibernate.dialect.H2Dialect
-#                format_sql: true
         hibernate: 
             ddl-auto: update
-#        show-sql: true
     h2:
         console:
             enabled: true

src/main/resources/templates/search.html

@@ -13,6 +13,7 @@
         <div th:replace="~{fragments/header :: ${#authorization.expression('isAuthenticated()')} ? 'header-auth' : 'header-anon'}"></div>
         <div class="container base">
             <div th:if="${books} != null">
+                <hr>
                 <h3>Titles</h3>
                 <div th:each="book : ${books}">
                     <a th:href="${'/book/' + book.id}">