Add support for android database password via resource string like DB_PASSWORD_[NAME]

Author: mstarita

app/build.gradle

@@ -33,6 +33,7 @@ android {
     buildTypes {
         debug {
             resValue("string", "PORT_NUMBER", "8081")
+            resValue("string", "DB_PASSWORD_CONTACT", "1234567890")
         }
         release {
             minifyEnabled false

debug-db/src/main/java/com/amitshekhar/utils/DatabaseFileProvider.java

@@ -20,9 +20,13 @@
 package com.amitshekhar.utils;
 
 import android.content.Context;
+import android.content.res.Resources;
 import android.util.Pair;
 
+import com.amitshekhar.R;
+
 import java.io.File;
+import java.text.MessageFormat;
 import java.util.HashMap;
 import java.util.List;
 
@@ -32,6 +36,8 @@
 
 public class DatabaseFileProvider {
 
+    private final static String DB_PASSWORD_RESOURCE = "DB_PASSWORD_{0}";
+
     private DatabaseFileProvider() {
         // This class in not publicly instantiable
     }
@@ -40,12 +46,29 @@ public static HashMap<String, Pair<File, String>> getDatabaseFiles(Context conte
         HashMap<String, Pair<File, String>> databaseFiles = new HashMap<>();
         try {
             for (String databaseName : context.databaseList()) {
-                databaseFiles.put(databaseName, new Pair<>(context.getDatabasePath(databaseName), ""));
+                String password = getDbPasswordFromStringResources(context, databaseName);
+                databaseFiles.put(databaseName, new Pair<>(context.getDatabasePath(databaseName), password));
             }
         } catch (Exception e) {
             e.printStackTrace();
         }
         return databaseFiles;
     }
 
+    private static String getDbPasswordFromStringResources(Context context, String name) {
+        String nameWithoutExt = name;
+        if (nameWithoutExt.endsWith(".db")) {
+            nameWithoutExt = nameWithoutExt.substring(0, nameWithoutExt.lastIndexOf('.'));
+        }
+        String resourceName = MessageFormat.format(DB_PASSWORD_RESOURCE, nameWithoutExt.toUpperCase());
+        String password = "";
+
+        int resourceId = context.getResources().getIdentifier(resourceName, "string", context.getPackageName());
+
+        if (resourceId != 0) {
+            password = context.getString(resourceId);
+        }
+
+        return password;
+    }
 }