Merge pull request #19 from vinayagasundar/master

Added option to export database

Author: amitshekhariitbhu

app/src/main/java/com/sample/database/ContactDBHelper.java

@@ -27,6 +27,7 @@
 import android.database.sqlite.SQLiteOpenHelper;
 
 import java.util.ArrayList;
+import java.util.Calendar;
 
 /**
  * Created by amitshekhar on 16/11/16.
@@ -41,6 +42,7 @@ public class ContactDBHelper extends SQLiteOpenHelper {
     public static final String CONTACTS_COLUMN_STREET = "street";
     public static final String CONTACTS_COLUMN_CITY = "place";
     public static final String CONTACTS_COLUMN_PHONE = "phone";
+    public static final String CONTACTS_CREATED_AT = "createdAt";
 
     public ContactDBHelper(Context context) {
         super(context, DATABASE_NAME, null, 1);
@@ -51,7 +53,7 @@ public void onCreate(SQLiteDatabase db) {
         // TODO Auto-generated method stub
         db.execSQL(
                 "create table contacts " +
-                        "(id integer primary key, name text,phone text,email text, street text,place text)"
+                        "(id integer primary key, name text,phone text,email text, street text,place text, createdAt integer)"
         );
     }
 
@@ -70,6 +72,7 @@ public boolean insertContact(String name, String phone, String email, String str
         contentValues.put("email", email);
         contentValues.put("street", street);
         contentValues.put("place", place);
+        contentValues.put(CONTACTS_CREATED_AT, Calendar.getInstance().getTimeInMillis());
         db.insert("contacts", null, contentValues);
         return true;
     }

debug-db/proguard-rules.pro

@@ -15,3 +15,61 @@
 #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
 #   public *;
 #}
+
+-keepparameternames
+-renamesourcefileattribute SourceFile
+-keepattributes Exceptions,InnerClasses,Signature,Deprecated,SourceFile,LineNumberTable,EnclosingMethod
+
+# Preserve all annotations.
+
+-keepattributes *Annotation*
+
+# Preserve all public classes, and their public and protected fields and
+# methods.
+
+-keep public class * {
+    public protected *;
+}
+
+# Preserve all .class method names.
+
+-keepclassmembernames class * {
+    java.lang.Class class$(java.lang.String);
+    java.lang.Class class$(java.lang.String, boolean);
+}
+
+# Preserve all native method names and the names of their classes.
+
+-keepclasseswithmembernames class * {
+    native <methods>;
+}
+
+# Preserve the special static methods that are required in all enumeration
+# classes.
+
+-keepclassmembers class * extends java.lang.Enum {
+    public static **[] values();
+    public static ** valueOf(java.lang.String);
+}
+
+# Explicitly preserve all serialization members. The Serializable interface
+# is only a marker interface, so it wouldn't save them.
+# You can comment this out if your library doesn't use serialization.
+# If your code contains serializable classes that have to be backward
+# compatible, please refer to the manual.
+
+-keepclassmembers class * implements java.io.Serializable {
+    static final long serialVersionUID;
+    static final java.io.ObjectStreamField[] serialPersistentFields;
+    private void writeObject(java.io.ObjectOutputStream);
+    private void readObject(java.io.ObjectInputStream);
+    java.lang.Object writeReplace();
+    java.lang.Object readResolve();
+}
+
+# Your library may contain more items that need to be preserved;
+# typically classes that are dynamically created using Class.forName:
+
+# -keep public class mypackage.MyClass
+# -keep public interface mypackage.MyInterface
+# -keep public class * implements mypackage.MyInterface

debug-db/src/main/assets/app.js

@@ -7,6 +7,8 @@ $( document ).ready(function() {
     });
 });
 
+var isDatabaseSelected = true;
+
 function getData(tableName) {
 
    $.ajax({url: "getAllDataFromTheTable?tableName="+tableName, success: function(result){
@@ -31,6 +33,13 @@ function queryFunction() {
 
 }
 
+function downloadDb() {
+    if (isDatabaseSelected) {
+        var url = window.location.href;
+        window.open(url+"downloadDb", "_blank")
+    }
+}
+
 
 function getDBList() {
 
@@ -59,9 +68,15 @@ function openDatabaseAndGetTableList(db) {
     if("APP_SHARED_PREFERENCES" == db) {
         $('#run-query').removeClass('active');
         $('#run-query').addClass('disabled');
+        $('#export-db').removeClass('active');
+        $('#export-db').addClass('disabled');
+        isDatabaseSelected = false;
     } else {
         $('#run-query').removeClass('disabled');
         $('#run-query').addClass('active');
+        $('#export-db').removeClass('disabled');
+        $('#export-db').addClass('active');
+        isDatabaseSelected = true;
     }
 
    $("#selected-db-info").text("Selected Database : "+db);

debug-db/src/main/assets/index.html

@@ -109,6 +109,9 @@
             <button id="run-query" type="submit" onclick="queryFunction()" class="btn btn-primary pull-right disabled">Run
                 Query
             </button>
+            <button id="export-db" type="button" onclick="downloadDb()" class="btn btn-primary">
+                Export DB
+            </button>
         </div>
     </div>
 

debug-db/src/main/java/com/amitshekhar/server/ClientServer.java

@@ -40,10 +40,12 @@
 import java.io.BufferedReader;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
+import java.io.FileInputStream;
 import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.io.OutputStream;
 import java.io.PrintStream;
 import java.net.ServerSocket;
 import java.net.Socket;
@@ -84,6 +86,11 @@ public class ClientServer implements Runnable {
     private Gson mGson;
     private boolean isDbOpenned;
 
+    /**
+     * Hold the selected database name
+     */
+    private String mSelectedDatabase = null;
+
     /**
      * WebServer constructor.
      */
@@ -226,13 +233,17 @@ private void handle(Socket socket) throws IOException {
                 if (Constants.APP_SHARED_PREFERENCES.equals(database)) {
                     response = getAllPrefTableName();
                     closeDatabase();
+                    mSelectedDatabase = null;
                 } else {
                     openDatabase(database);
                     response = getAllTableName();
+                    mSelectedDatabase = database;
                 }
 
                 String data = mGson.toJson(response);
                 bytes = data.getBytes();
+            } else if (route.startsWith("downloadDb")) {
+                bytes = getDatabaseFile();
             } else {
                 bytes = loadContent(route);
             }
@@ -246,7 +257,12 @@ private void handle(Socket socket) throws IOException {
             // Send out the content.
             output.println("HTTP/1.0 200 OK");
             output.println("Content-Type: " + detectMimeType(route));
-            output.println("Content-Length: " + bytes.length);
+
+            if (route.startsWith("downloadDb")) {
+                output.println("Content-Disposition: attachment; filename=" + mSelectedDatabase);
+            } else {
+                output.println("Content-Length: " + bytes.length);
+            }
             output.println();
             output.write(bytes);
             output.flush();
@@ -318,6 +334,32 @@ private String detectMimeType(String fileName) {
         }
     }
 
+    private byte[] getDatabaseFile() {
+        if (TextUtils.isEmpty(mSelectedDatabase)) {
+            return null;
+        }
+
+        File file = new File(mDatabaseDir, mSelectedDatabase);
+
+        byte[] byteArray = null;
+        try {
+            InputStream inputStream = new FileInputStream(file);
+            ByteArrayOutputStream bos = new ByteArrayOutputStream();
+            byte[] b = new byte[(int) file.length()];
+            int bytesRead = 0;
+
+            while ((bytesRead = inputStream.read(b)) != -1) {
+                bos.write(b, 0, bytesRead);
+            }
+
+            byteArray = bos.toByteArray();
+        } catch (IOException e) {
+            Log.e(TAG, "getDatabaseFile: ", e);
+        }
+
+        return byteArray;
+    }
+
     private void getDatabaseDir() {
         File root = mContext.getFilesDir().getParentFile();
         File dbRoot = new File(root, "/databases");
@@ -383,7 +425,7 @@ private Response query(String sql) {
                                 row.add(cursor.getFloat(i));
                                 break;
                             case Cursor.FIELD_TYPE_INTEGER:
-                                row.add(cursor.getInt(i));
+                                row.add(cursor.getLong(i));
                                 break;
                             case Cursor.FIELD_TYPE_STRING:
                                 row.add(cursor.getString(i));