Добавил новый тип получения файлов ByteContainer. [ci skip]

pom.xml

@@ -5,7 +5,7 @@
 
     <groupId>dev.struchkov.godfather</groupId>
     <artifactId>telegram-bot</artifactId>
-    <version>0.0.14</version>
+    <version>0.0.15</version>
     <packaging>pom</packaging>
 
     <modules>

telegram-core/pom.xml

@@ -5,7 +5,7 @@
     <parent>
         <groupId>dev.struchkov.godfather</groupId>
         <artifactId>telegram-bot</artifactId>
-        <version>0.0.14</version>
+        <version>0.0.15</version>
     </parent>
 
     <artifactId>telegram-core</artifactId>

telegram-core/src/main/java/dev/struchkov/godfather/telegram/domain/files/ByteContainer.java

@@ -0,0 +1,31 @@
+package dev.struchkov.godfather.telegram.domain.files;
+
+public class ByteContainer {
+
+    public static final ByteContainer EMPTY = new ByteContainer(null, null);
+
+    private final String fileName;
+    private final byte[] bytes;
+
+    public ByteContainer(String fileName, byte[] bytes) {
+        this.fileName = fileName;
+        this.bytes = bytes;
+    }
+
+    public static ByteContainer empty() {
+        return EMPTY;
+    }
+
+    public String getFileName() {
+        return fileName;
+    }
+
+    public byte[] getBytes() {
+        return bytes;
+    }
+
+    public boolean isNotEmpty() {
+        return bytes != null && bytes.length > 0;
+    }
+
+}

telegram-core/src/main/java/dev/struchkov/godfather/telegram/domain/files/FileContainer.java

@@ -1,4 +1,4 @@
-package dev.struchkov.godfather.telegram.domain;
+package dev.struchkov.godfather.telegram.domain.files;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -21,6 +21,10 @@ public class FileContainer {
         this.file = file;
     }
 
+    public static FileContainer empty() {
+        return EMPTY;
+    }
+
     public String getFileName() {
         return fileName;
     }
@@ -29,10 +33,6 @@ public class FileContainer {
         return file;
     }
 
-    public static FileContainer empty() {
-        return EMPTY;
-    }
-
     public boolean isNotEmpty() {
         return file != null;
     }

telegram-core/src/main/java/dev/struchkov/godfather/telegram/service/AttachmentServiceImpl.java

@@ -1,9 +1,11 @@
 package dev.struchkov.godfather.telegram.service;
 
 import dev.struchkov.godfather.telegram.TelegramConnect;
-import dev.struchkov.godfather.telegram.domain.FileContainer;
 import dev.struchkov.godfather.telegram.domain.attachment.DocumentAttachment;
+import dev.struchkov.godfather.telegram.domain.files.ByteContainer;
+import dev.struchkov.godfather.telegram.domain.files.FileContainer;
 import org.apache.commons.io.FileUtils;
+import org.apache.commons.io.IOUtils;
 import org.jetbrains.annotations.NotNull;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -17,7 +19,6 @@ import java.io.InputStream;
 import java.net.URL;
 import java.nio.file.Files;
 import java.nio.file.Path;
-import java.util.Optional;
 import java.util.UUID;
 import java.util.stream.Stream;
 
@@ -66,6 +67,23 @@ public class AttachmentServiceImpl {
         return FileContainer.empty();
     }
 
+    public ByteContainer uploadBytes(@NotNull DocumentAttachment documentAttachment) {
+        isNotNull(documentAttachment);
+        try {
+            final byte[] bytes = downloadBytes(documentAttachment);
+            return new ByteContainer(documentAttachment.getFileName(), bytes);
+        } catch (Exception e) {
+            log.error(e.getMessage(), e);
+        }
+        return ByteContainer.empty();
+    }
+
+    private byte[] downloadBytes(DocumentAttachment documentAttachment) throws TelegramApiException, IOException {
+        final org.telegram.telegrambots.meta.api.objects.File file = getFilePath(documentAttachment);
+        final URL url = new URL(file.getFileUrl(botToken));
+        return IOUtils.toByteArray(url);
+    }
+
     private File downloadFile(DocumentAttachment documentAttachment) throws IOException, TelegramApiException {
         final org.telegram.telegrambots.meta.api.objects.File file = getFilePath(documentAttachment);