Merge pull request amitshekhariitbhu#123 from peanutwolf/feature_db_delete

Add support for database delete

Author: amitshekhariitbhu

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

@@ -82,6 +82,21 @@ function downloadDb() {
     }
 }
 
+function deleteDb() {
+    if (isDatabaseSelected) {
+        $.ajax({url: "deleteDb", success: function(result){
+            result = JSON.parse(result);
+            if(result.isSuccessful){
+               console.log("Database deleted successfully");
+               showSuccessInfo("Database Deleted Successfully");
+               getDBList();
+            } else {
+               console.log("Database delete failed");
+               showErrorInfo("Database Delete Failed");
+            }
+        }});
+    }
+}
 
 function getDBList() {
 
@@ -115,21 +130,26 @@ function openDatabaseAndGetTableList(db, isDownloadable) {
     if("APP_SHARED_PREFERENCES" == db) {
         $('#run-query').removeClass('active');
         $('#run-query').addClass('disabled');
-        $('#selected-db-info').removeClass('active');
-        $('#selected-db-info').addClass('disabled');
+        $('#selected-db-download').removeClass('active');
+        $('#selected-db-delete').removeClass('active');
+        $('#selected-db-download').addClass('disabled');
+        $('#selected-db-delete').addClass('disabled');
         isDatabaseSelected = false;
         $("#selected-db-info").text("SharedPreferences");
     } else {
         $('#run-query').removeClass('disabled');
         $('#run-query').addClass('active');
+        $("#selected-db-info").text("Selected Database : "+db);
         if("true" == isDownloadable) {
-            $('#selected-db-info').removeClass('disabled');
-            $('#selected-db-info').addClass('active');
-            $("#selected-db-info").text("Export Selected Database : "+db);
+            $('#selected-db-download').addClass('active');
+            $('#selected-db-delete').addClass('active');
+            $('#selected-db-download').removeClass('disabled');
+            $('#selected-db-delete').removeClass('disabled');
         } else {
-            $('#selected-db-info').removeClass('active');
-            $('#selected-db-info').addClass('disabled');
-            $("#selected-db-info").text("Selected Database : "+db);
+            $('#selected-db-download').removeClass('active');
+            $('#selected-db-delete').removeClass('active');
+            $('#selected-db-download').addClass('disabled');
+            $('#selected-db-delete').addClass('disabled');
         }
         isDatabaseSelected = true;
     }
@@ -141,11 +161,7 @@ function openDatabaseAndGetTableList(db, isDownloadable) {
            var tableList = result.rows;
            var dbVersion = result.dbVersion;
            if("APP_SHARED_PREFERENCES" != db) {
-              if("true" == isDownloadable) {
-                $("#selected-db-info").text("Export Selected Database : "+db +" Version : "+dbVersion);
-              } else {
                 $("#selected-db-info").text("Selected Database : "+db +" Version : "+dbVersion);
-              }
            }
            $('#table-list').empty()
            for(var count = 0; count < tableList.length; count++){

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

@@ -121,9 +121,13 @@
                 <label for="query">Query</label>
                 <input class="form-control" id="query">
             </div>
-            <button id="selected-db-info" type="button" onclick="downloadDb()" class="btn btn-info">
-                Welcome
+            <button id="selected-db-download" type="button" onclick="downloadDb()" class="btn btn-info">
+                Download
             </button>
+            <button id="selected-db-delete" type="button" onclick="deleteDb()" class="btn btn-info">
+                Delete
+            </button>
+            <label id="selected-db-info" class="panel-info">Welcome</label>
             <button id="run-query" type="submit" onclick="queryFunction()"
                     class="btn btn-primary pull-right disabled">Run
                 Query

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

@@ -210,6 +210,9 @@ public void handle(Socket socket) throws IOException {
             } else if (route.startsWith("query")) {
                 final String response = executeQueryAndGetResponse(route);
                 bytes = response.getBytes();
+            } else if (route.startsWith("deleteDb")) {
+                final String response = deleteSelectedDatabaseAndGetResponse();
+                bytes = response.getBytes();
             } else if (route.startsWith("downloadDb")) {
                 bytes = Utils.getDatabase(mSelectedDatabase, mDatabaseFiles);
             } else {
@@ -593,4 +596,30 @@ private String deleteTableDataAndGetResponse(String route) {
         }
     }
 
+    private String deleteSelectedDatabaseAndGetResponse() {
+        UpdateRowResponse response = new UpdateRowResponse();
+
+        if(mSelectedDatabase == null || !mDatabaseFiles.containsKey(mSelectedDatabase)){
+            response.isSuccessful = false;
+            return mGson.toJson(response);
+        }
+
+        try {
+            closeDatabase();
+
+            File dbFile = mDatabaseFiles.get(mSelectedDatabase).first;
+            response.isSuccessful = dbFile.delete();
+
+            if(response.isSuccessful){
+                mDatabaseFiles.remove(mSelectedDatabase);
+                mCustomDatabaseFiles.remove(mSelectedDatabase);
+            }
+
+            return mGson.toJson(response);
+        } catch (Exception e) {
+            e.printStackTrace();
+            response.isSuccessful = false;
+            return mGson.toJson(response);
+        }
+    }
 }