Create singleton accessors of HostDatabase and PubkeyDatabase

2 files changed, 31 insertions, 0 deletions

diff --git a/app/src/main/java/org/connectbot/util/HostDatabase.java b/app/src/main/java/org/connectbot/util/HostDatabase.java
index 1c42dce..abb4c5b 100644
--- a/app/src/main/java/org/connectbot/util/HostDatabase.java
+++ b/app/src/main/java/org/connectbot/util/HostDatabase.java
@@ -144,6 +144,21 @@ public class HostDatabase extends RobustSQLiteOpenHelper {
 	/** Used during upgrades from DB version 23 to 24. */
 	private final float displayDensity;
 
+	private static final Object sInstanceLock = new Object();
+
+	private static HostDatabase sInstance;
+
+	public static HostDatabase get(Context context) {
+		synchronized (sInstanceLock) {
+			if (sInstance != null) {
+				return sInstance;
+			}
+
+			sInstance = new HostDatabase(context.getApplicationContext());
+			return sInstance;
+		}
+	}
+
 	public HostDatabase(Context context) {
 		super(context, DB_NAME, null, DB_VERSION);
 
diff --git a/app/src/main/java/org/connectbot/util/PubkeyDatabase.java b/app/src/main/java/org/connectbot/util/PubkeyDatabase.java
index 026b9e8..e3ca784 100644
--- a/app/src/main/java/org/connectbot/util/PubkeyDatabase.java
+++ b/app/src/main/java/org/connectbot/util/PubkeyDatabase.java
@@ -61,6 +61,22 @@ public class PubkeyDatabase extends RobustSQLiteOpenHelper {
 		addTableName(TABLE_PUBKEYS);
 	}
 
+	private static final Object sInstanceLock = new Object();
+
+	private static PubkeyDatabase sInstance;
+
+	public static PubkeyDatabase get(Context context) {
+		synchronized (sInstanceLock) {
+			if (sInstance != null) {
+				return sInstance;
+			}
+
+			Context appContext = context.getApplicationContext();
+			sInstance = new PubkeyDatabase(appContext);
+			return sInstance;
+		}
+	}
+
 	public PubkeyDatabase(Context context) {
 		super(context, DB_NAME, null, DB_VERSION);