photo

PC32-RestSerwer/src/main/java/sklep/rest/PhotoUtil.java

+package sklep.rest;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.nio.file.StandardCopyOption;
+import java.nio.file.StandardOpenOption;
+
+import sklep.db.DBException;
+import sklep.db.DBSettings;
+import sklep.db.RecordNotFound;
+
+public class PhotoUtil {
+    
+    private static final String EXT = ".jpg";
+
+    public static File getFile(int productId) throws DBException, RecordNotFound {
+        Path path = getPath(productId);
+        File file = path.toFile();
+        if(file.exists()) {
+            return file;
+        } else {
+            throw new RecordNotFound("Cannot read photo for product id = " + productId);
+        }
+    }
+
+    public static byte[] readBytes(int productId) throws DBException, RecordNotFound {
+        Path path = getPath(productId);
+        try {
+            return Files.readAllBytes(path);
+        } catch (IOException e) {
+        	// System.err.println(e);
+            throw new RecordNotFound("Cannot read photo for product id = " + productId);
+        }
+    }
+
+	public static void writeStream(int productId, InputStream inputStream) {
+		try {
+			Path path = getPath(productId);
+			Files.copy(inputStream, path, StandardCopyOption.REPLACE_EXISTING);
+		} catch (Exception e) {
+			// wypisujemy błąd, ale metoda kończy się normalnie
+			e.printStackTrace();
+		}
+	}
+	
+    public static void writeBytes(int productId, byte[] bytes) {
+        try {
+            Path path = getPath(productId);
+            Files.write(path, bytes, StandardOpenOption.CREATE);
+        } catch (Exception e) {
+            // wypisujemy błąd, ale metoda kończy się normalnie
+            e.printStackTrace();
+        }
+    }
+
+	private static Path getPath(int productId) throws DBException {
+		String dir = DBSettings.load().getProperty("photo_dir");
+		String fileName = productId + EXT;
+		return Paths.get(dir, fileName);
+	}
+	
+}

PC32-RestSerwer/src/main/java/sklep/rest/RProducts.java

@@ -34,4 +34,12 @@ public class RProducts {
         }
     }
 
+    @GET
+    @Produces("image/jpeg")
+    @Path("/{id}/photo")
+    // http://localhost:8080/PC32-RestSerwer/products/1/photo
+    public byte[] photo(@PathParam("id") int productId) throws DBException, RecordNotFound {
+        return PhotoUtil.readBytes(productId);
+    }
+    
 }