support for postgresql (#37)

README.md

@@ -36,19 +36,22 @@ To install maven and openjdk on Ubuntu, issue the following commands
     
 Now build the application
 
-	Embedded HSQL database (not recommended, ok for quick tests):
+	Embedded HSQL database (not recommended, ok for quick tests but automatic schema updates are not working):
     mvn clean package tomee:build -Pprod
     
 	External MySQL database:
     mvn clean package tomee:build -Pprod -Pmysql
     
+    External PostgreSQL database:
+    mvn clean package tomee:build -Pprod -Ppgsql
+    
 It will generate a zip file at `target/commafeed.zip` with everything you need to run the application.
 
 * Create a directory somewhere (e.g. `/opt/commafeed/`) and extract the generated zip inside this directory.
 * Create a directory called `logs` (e.g. `/opt/commafeed/logs`)
 * On Linux, create the file `bin/setenv.sh` and put the following in it : `export JAVA_OPTS="-Xmx1024m -XX:MaxPermSize=256m -XX:+CMSClassUnloadingEnabled"`
 * On Windows, create the file `bin/setenv.bat` and put the following in it : `set JAVA_OPTS="-Xmx1024m -XX:MaxPermSize=256m -XX:+CMSClassUnloadingEnabled"`
-* If you used the MySQL option, create a database in your MySQL instance, then uncomment the `Resource` element from `conf/tomee.xml` and edit the default credentials.
+* If you don't use the embedded database, create a database in your external database instance, then uncomment the `Resource` element corresponding to the database engine you use from `conf/tomee.xml` and edit the default credentials.
 * If you'd like to change the default port (8082), edit `conf/server.xml` and look for `<Connector port="8082" protocol="HTTP/1.1"`. Change the port to the value you'd like to use.
 * CommaFeed will run on the `/commafeed` context. If you'd like to change the context, go to `webapps` and rename `commafeed.war`. Use the special name `ROOT.war` to deploy to the root context.
 * To start and stop the application, use `bin/startup.sh` and `bin/shutdown.sh` on Linux (you may need to `chmod +x bin/*.sh`) or `bin\startup.bat` and `bin\shutdown.bat` on Windows.

pom.xml

@@ -104,6 +104,7 @@
 						<lib>remove:hsqldb</lib>
 						<lib>org.hsqldb:hsqldb:SNAPSHOT</lib>
 						<lib>mysql:mysql-connector-java:5.1.24</lib>
+						<lib>postgresql:postgresql:9.1-901.jdbc4</lib>
 					</libs>
 				</configuration>
 			</plugin>
@@ -428,6 +429,13 @@
 				<jpa.dialect>com.commafeed.backend.MySQL5Dialect</jpa.dialect>
 			</properties>
 		</profile>
+		<profile>
+			<id>pgsql</id>
+			<properties>
+				<jpa.datasource.name>java:openejb/Resource/PostgreSQL</jpa.datasource.name>
+				<jpa.dialect>org.hibernate.dialect.PostgreSQLDialect</jpa.dialect>
+			</properties>
+		</profile>
 		<profile>
 			<id>prod</id>
 			<properties>

src/main/tomee/conf/tomee.xml

@@ -9,6 +9,20 @@
 		MaxActive 50
 	</Resource>
  -->
+ 
+ <!-- 
+	<Resource id="PostgreSQL" type="DataSource">
+		JdbcDriver org.postgresql.Driver
+        JdbcUrl jdbc:postgresql://localhost:5432/commafeed
+		UserName cf
+		Password cf
+		MaxActive 50
+	</Resource>
+ -->
+ 
+ 
+ 
+ 
 	<Container id="CommaFeedStateless" type="STATELESS">
 	        PoolSize=50
 	        StrictPooling=false