Change DBStore to target a file

services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/bridge/db/SqliteDBStore.java

@@ -16,9 +16,9 @@ public class SqliteDBStore implements DBStore {
 
     private final SQLiteWLDatabase database;
 
-    public SqliteDBStore(File rootDirectory) {
+    public SqliteDBStore(File dbFile) {
         try {
-            database = new SQLiteWLDatabase(rootDirectory);
+            database = new SQLiteWLDatabase(dbFile);
         } catch (SQLException e) {
             throw new RuntimeException(e);
         } catch (ClassNotFoundException e) {
@@ -87,12 +87,20 @@ public class SqliteDBStore implements DBStore {
 
     @Override
     public String getOldestUnswappedProject() {
-        throw new UnsupportedOperationException();
+        try {
+            return database.getOldestUnswappedProject();
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
     }
 
     @Override
     public void setLastAccessedTime(String projectName, Timestamp time) {
-        throw new UnsupportedOperationException();
+        try {
+            database.setLastAccessedTime(projectName, time);
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
     }
 
 }

services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/data/model/db/sql/SQLiteWLDatabase.java

@@ -1,5 +1,6 @@
 package uk.ac.ic.wlgitbridge.data.model.db.sql;
 
+import com.google.api.client.repackaged.com.google.common.base.Preconditions;
 import uk.ac.ic.wlgitbridge.data.model.db.sql.query.GetLatestVersionForProjectSQLQuery;
 import uk.ac.ic.wlgitbridge.data.model.db.sql.query.GetPathForURLInProjectSQLQuery;
 import uk.ac.ic.wlgitbridge.data.model.db.sql.query.GetProjectNamesSQLQuery;
@@ -9,7 +10,6 @@ import uk.ac.ic.wlgitbridge.data.model.db.sql.update.create.CreateURLIndexStoreS
 import uk.ac.ic.wlgitbridge.data.model.db.sql.update.delete.DeleteFilesForProjectSQLUpdate;
 import uk.ac.ic.wlgitbridge.data.model.db.sql.update.insert.AddURLIndexSQLUpdate;
 import uk.ac.ic.wlgitbridge.data.model.db.sql.update.insert.SetProjectSQLUpdate;
-import uk.ac.ic.wlgitbridge.util.Log;
 
 import java.io.File;
 import java.sql.*;
@@ -22,36 +22,54 @@ public class SQLiteWLDatabase {
 
     private final Connection connection;
 
-    public SQLiteWLDatabase(File rootGitDirectory) throws SQLException, ClassNotFoundException {
-        File databaseFile = new File(rootGitDirectory, "/.wlgb/wlgb.db");
-        File dotWlgbDir = databaseFile.getParentFile();
-        if (!dotWlgbDir.exists()) {
-            if (!dotWlgbDir.mkdirs()) {
-                Log.error("{} directory didn't exist, and unable to create. Check your permissions", dotWlgbDir.getAbsolutePath());
-            }
-        }
+    public SQLiteWLDatabase(
+            File dbFile
+    ) throws SQLException, ClassNotFoundException {
+        File parentDir = dbFile.getParentFile();
+        Preconditions.checkState(
+                parentDir.exists() || parentDir.mkdirs(),
+                parentDir.getAbsolutePath() + " directory didn't exist, " +
+                        "and unable to create. Check your permissions."
+        );
         Class.forName("org.sqlite.JDBC");
-        connection = DriverManager.getConnection("jdbc:sqlite:" + databaseFile.getAbsolutePath());
+        connection = DriverManager.getConnection(
+                "jdbc:sqlite:" + dbFile.getAbsolutePath()
+        );
         createTables();
     }
 
-    public void setVersionIDForProject(String projectName, int versionID) throws SQLException {
+    public void setVersionIDForProject(
+            String projectName,
+            int versionID
+    ) throws SQLException {
         update(new SetProjectSQLUpdate(projectName, versionID));
     }
 
-    public void addURLIndex(String projectName, String url, String path) throws SQLException {
+    public void addURLIndex(
+            String projectName,
+            String url,
+            String path
+    ) throws SQLException {
         update(new AddURLIndexSQLUpdate(projectName, url, path));
     }
 
-    public void deleteFilesForProject(String projectName, String... paths) throws SQLException {
+    public void deleteFilesForProject(
+            String projectName,
+            String... paths
+    ) throws SQLException {
         update(new DeleteFilesForProjectSQLUpdate(projectName, paths));
     }
 
-    public int getVersionIDForProjectName(String projectName) throws SQLException {
+    public int getVersionIDForProjectName(
+            String projectName
+    ) throws SQLException {
         return query(new GetLatestVersionForProjectSQLQuery(projectName));
     }
 
-    public String getPathForURLInProject(String projectName, String url) throws SQLException {
+    public String getPathForURLInProject(
+            String projectName,
+            String url
+    ) throws SQLException {
         return query(new GetPathForURLInProjectSQLQuery(projectName, url));
     }
 
@@ -59,6 +77,17 @@ public class SQLiteWLDatabase {
         return query(new GetProjectNamesSQLQuery());
     }
 
+    public String getOldestUnswappedProject() throws SQLException {
+        throw new UnsupportedOperationException();
+    }
+
+    public void setLastAccessedTime(
+            String projectName,
+            Timestamp time
+    ) throws SQLException {
+        throw new UnsupportedOperationException();
+    }
+
     private void createTables() throws SQLException {
         final SQLUpdate[] createTableUpdates = {
                 new CreateProjectsTableSQLUpdate(),

services/git-bridge/src/main/java/uk/ac/ic/wlgitbridge/server/GitBridgeServer.java

@@ -26,6 +26,7 @@ import javax.servlet.ServletException;
 import java.io.File;
 import java.io.InputStream;
 import java.net.BindException;
+import java.nio.file.Paths;
 import java.util.EnumSet;
 
 /**
@@ -50,7 +51,11 @@ public class GitBridgeServer {
         this.port = config.getPort();
         this.rootGitDirectoryPath = config.getRootGitDirectory();
         RepoStore repoStore = new FSRepoStore(rootGitDirectoryPath);
-        DBStore dbStore = new SqliteDBStore(repoStore.getRootDirectory());
+        DBStore dbStore = new SqliteDBStore(
+                Paths.get(
+                        repoStore.getRootDirectory().getAbsolutePath()
+                ).resolve(".wlgb").resolve("wlgb.db").toFile()
+        );
         SwapStore swapStore = new SwapStore() {
             @Override
             public void upload(String projectName, InputStream uploadStream, long contentLength) {