fix: 系统变量 SQL 替换未参数化

core/core-backend/src/main/java/io/dataease/exportCenter/manage/ExportTaskFileTarget.java

@@ -0,0 +1,63 @@
+package io.dataease.exportCenter.manage;
+
+import io.dataease.exception.DEException;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
+
+final class ExportTaskFileTarget {
+
+    record FileSize(Double size, String unit) {
+    }
+
+    private final String taskId;
+    private final Path exportFilePath;
+
+    ExportTaskFileTarget(String taskId, Path exportFilePath) {
+        this.taskId = taskId;
+        this.exportFilePath = exportFilePath;
+    }
+
+    String taskId() {
+        return taskId;
+    }
+
+    String filePath() {
+        return exportFilePath.toString();
+    }
+
+    void createParentDirectory() {
+        try {
+            Files.createDirectories(exportFilePath.getParent());
+        } catch (IOException e) {
+            DEException.throwException(e);
+        }
+    }
+
+    OutputStream newOutputStream() throws IOException {
+        return Files.newOutputStream(exportFilePath, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.WRITE);
+    }
+
+    InputStream newInputStream() throws IOException {
+        return Files.newInputStream(exportFilePath);
+    }
+
+    long size() throws IOException {
+        return Files.size(exportFilePath);
+    }
+
+    FileSize readFileSize() throws IOException {
+        long length = size();
+        if ((double) length / 1024 / 1024 > 1) {
+            if ((double) length / 1024 / 1024 / 1024 > 1) {
+                return new FileSize(Double.valueOf(String.format("%.2f", (double) length / 1024 / 1024 / 1024)), "Gb");
+            }
+            return new FileSize(Double.valueOf(String.format("%.2f", (double) length / 1024 / 1024)), "Mb");
+        }
+        return new FileSize(Double.valueOf(String.format("%.2f", (double) length / 1024)), "Kb");
+    }
+}