Merge pull request #289 from Athou/liquibase

initial liquibase setup

src/main/java/com/commafeed/backend/DatabaseUpdater.java

@@ -0,0 +1,64 @@
+package com.commafeed.backend;
+
+import java.sql.Connection;
+import java.util.ResourceBundle;
+
+import javax.ejb.Stateless;
+import javax.ejb.TransactionManagement;
+import javax.ejb.TransactionManagementType;
+import javax.naming.Context;
+import javax.naming.InitialContext;
+import javax.sql.DataSource;
+
+import liquibase.Liquibase;
+import liquibase.database.Database;
+import liquibase.database.DatabaseFactory;
+import liquibase.database.jvm.JdbcConnection;
+import liquibase.resource.ClassLoaderResourceAccessor;
+import liquibase.resource.ResourceAccessor;
+
+@Stateless
+@TransactionManagement(TransactionManagementType.BEAN)
+public class DatabaseUpdater {
+
+	public void update() {
+		String datasourceName = ResourceBundle.getBundle("application")
+				.getString("datasource");
+		try {
+			Context context = null;
+			Connection connection = null;
+			try {
+				Thread currentThread = Thread.currentThread();
+				ClassLoader classLoader = currentThread.getContextClassLoader();
+				ResourceAccessor accessor = new ClassLoaderResourceAccessor(
+						classLoader);
+
+				context = new InitialContext();
+				DataSource dataSource = (DataSource) context
+						.lookup(datasourceName);
+				connection = dataSource.getConnection();
+
+				Database database = DatabaseFactory.getInstance()
+						.findCorrectDatabaseImplementation(
+								new JdbcConnection(connection));
+
+				Liquibase liq = new Liquibase(
+						"changelogs/db.changelog-master.xml", accessor,
+						database);
+				liq.update("prod");
+			} finally {
+				if (context != null) {
+					context.close();
+				}
+				if (connection != null) {
+					connection.close();
+				}
+			}
+
+		} catch (Exception e) {
+			throw new RuntimeException(e);
+		}
+
+	}
+
+}

src/main/java/com/commafeed/backend/StartupBean.java

@@ -43,6 +43,9 @@ public class StartupBean {
 	public static final String USERNAME_ADMIN = "admin";
 	public static final String USERNAME_DEMO = "demo";
 
+	@Inject
+	DatabaseUpdater databaseUpdater;
+
 	@Inject
 	FeedDAO feedDAO;
 
@@ -74,6 +77,8 @@ public class StartupBean {
 	private void init() {
 
 		startupTime = Calendar.getInstance().getTimeInMillis();
+		databaseUpdater.update();
+
 		if (userDAO.getCount() == 0) {
 			initialData();
 		}
@@ -148,5 +153,4 @@ public class StartupBean {
 			}
 		}
 	}
-
 }