Add ZIP compression details to Dump Controller Log analysis

GC_DumpControllerLog.md

@@ -159,3 +159,161 @@ dumpEventLog(Cdb)
   → parse status & data
   → close()
 ```
+
+---
+
+## ZIP 壓縮處理細節
+
+### 輸出檔案
+
+**dlgDumpLog.java (舊型號)**
+```
+./Log/{SN}_ControllerLog_{YYYY}_{M}_{D}_{H}_{m}_{s}.zip
+```
+
+**dlgDumpLog2.java (新型號)**
+```
+Primary: ./Log/Primary_{SN}_ControllerLog.zip
+Secondary: ./Log/Secondary_{SN}_ControllerLog.zip
+合併: ./Log/{PrimarySN}_{SecondarySN}_ControllerLog_{YYYY}_{M}_{D}_{H}_{m}_{s}.zip
+```
+
+### 壓縮前的暫存檔
+
+| Page Code | 檔案名稱 | 說明 |
+|-----------|----------|------|
+| 0x60 | EventPage.bin | Event Log |
+| 0x61 | DebugPage.bin | Debug Log |
+| 0x62 | DiskMetadataPage.bin | Disk Metadata |
+| 0x63 | SpecialLogPage.bin | Special Log |
+| 0x64 | TelMesPages.log | Telemetry Messages |
+
+### compressLog() 流程 (dlgDumpLog.java)
+
+```java
+public void compressLog() {
+    File[] logs = new File[5];
+    for(int i=0; i<=4; i++) {
+        logs[i] = getFile((byte)(i+0x60));  // 取得 5 個暫存檔
+    }
+    
+    // 建立 ZIP 檔案
+    Calendar rightNow = Calendar.getInstance();
+    String filename = "./Log/" + PageDataDB.sSN.trim() + "_ControllerLog_"
+        + rightNow.get(Calendar.YEAR) + "_"
+        + (rightNow.get(Calendar.MONTH)+1) + "_"
+        + rightNow.get(Calendar.DAY_OF_MONTH) + "_"
+        + rightNow.get(Calendar.HOUR) + "_"
+        + rightNow.get(Calendar.MINUTE) + "_"
+        + rightNow.get(Calendar.SECOND) + ".zip";
+    
+    FileOutputStream fout = new FileOutputStream(filename);
+    ZipOutputStream zout = new ZipOutputStream(fout);
+    zout.setLevel(5);  // 壓縮等級 0-9
+    
+    // 逐一壓縮每個檔案
+    for (byte i = 0; i <= 4; i++) {
+        if(logs[i].exists()) {
+            ZipEntry ze = new ZipEntry(logs[i].getName());
+            FileInputStream fin = new FileInputStream(logs[i]);
+            zout.putNextEntry(ze);
+            
+            // 特殊處理 Page 0x64 (TelMesPages.log)
+            if(i != 0x4) {
+                // 一般檔案：直接複製
+                for(int c = fin.read(); c != -1; c = fin.read()) {
+                    zout.write(c);
+                }
+            } else {
+                // TelMesPages.log: 每 40 bytes 為一筆記錄
+                // 移除空字元 (0x00)，只保留有效資料
+                byte data;
+                boolean skipNull = false;
+                for(int j=0; j < logs[i].length()/40; j++) {
+                    skipNull = false;
+                    for(int k=0; k<40; k++) {
+                        data = (byte)fin.read();
+                        if(data == 0x0a || skipNull == true) {
+                            skipNull = true;
+                        } else {
+                            zout.write(data);
+                        }
+                    }
+                    zout.write(0x0a);  // 加上換行符
+                }
+            }
+            
+            zout.closeEntry();
+            fin.close();
+            logs[i].delete();  // 刪除暫存檔
+        }
+    }
+    zout.close();
+}
+```
+
+### compressLog() 流程 (dlgDumpLog2.java)
+
+```java
+// 單一控制器壓縮
+public void compressLog(String sSN) {
+    String prefix = sSN.equals(PageDataDB.sSN) ? "Primary" : "Secondary";
+    String filename = "./Log/" + prefix + "_" + sSN.trim() + "_ControllerLog.zip";
+    // ... 同上邏輯
+}
+
+// 雙控制器合併壓縮
+public void compressLog2() {
+    File[] logs = new File[2];
+    logs[0] = new File(sMaterFileNamePatch);  // Primary
+    logs[1] = new File(sSlaveFileNamePatch);   // Secondary
+    
+    // 合併成單一 ZIP，內含兩個 ZIP 檔
+    String filename = "./Log/" + PageDataDB.sSN.trim() + "_" 
+        + PageDataDB.sSlaveSN.trim() + "_ControllerLog_{timestamp}.zip";
+    // ... 
+}
+```
+
+### ZIP 結構
+
+```
+Archive: {SN}_ControllerLog_2024_3_29_10_30_45.zip
+├── EventPage.bin         (512 bytes/block)
+├── DebugPage.bin         (512 bytes/block)
+├── DiskMetadataPage.bin  (512 bytes/block)
+├── SpecialLogPage.bin    (512 bytes/block)
+└── TelMesPages.log      (40 bytes/record, 去除 null)
+```
+
+### 特殊處理：TelMesPages.log (Page 0x64)
+
+```java
+// 原始資料: 40 bytes/record，包含 null (0x00) 字元
+// 處理邏輯:
+// 1. 讀取每 40 bytes
+// 2. 跳過開頭的 null 字元
+// 3. 遇到換行符 (0x0a) 後，後續全部視為有效資料
+// 4. 輸出時每筆記錄加上換行符
+
+// Example:
+// Input:  [0x00, 0x00, 0x00, 0x31, 0x32, ..., 0x00, 0x00]
+// Output: "12...data\n"
+```
+
+### Java 類別使用
+
+```java
+import java.util.zip.ZipOutputStream;
+import java.util.zip.ZipEntry;
+import java.util.Calendar;
+
+// 關鍵類別
+ZipOutputStream zout = new ZipOutputStream(fout);
+zout.setLevel(5);              // 壓縮等級 (0=儲存, 9=最大壓縮)
+ZipEntry ze = new ZipEntry(filename);
+zout.putNextEntry(ze);
+zout.write(byte[] data);
+zout.closeEntry();
+zout.close();
+```