On 05/22/2012 08:59 AM, Vincent Massol wrote:

On May 22, 2012, at 2:49 PM, Vincent Massol wrote:

Hi devs,

I need to be able to configuration the location of the HSQLDB database/ 
directory in our installer when executing on windows7 (because on windows7 you 
cannot write to the ProgramFiles directory).

I'm proposing to add variable substitution so that we can configure 
connectio.url for HSQLDB to point to the environment.permanentDirectory 
location.

We would have:
<property 
name="connection.url">jdbc:hsqldb:file:${environment.permanentDirectory)/database/xwiki_db;shutdown=true</property>

Technical details:
* I'll modify DBCPConnectionProvider. More specifically this part:

            String jdbcUrl = System.getProperty(Environment.URL);
            if (jdbcUrl == null) {
                jdbcUrl = props.getProperty(Environment.URL);
            }
            dbcpProperties.put("url", jdbcUrl);

* And look for ${…} , extract the variable name and use the 
XWikiPropertiesConfigurationSource to get the value for that variable name, as 
a String.

WDYT?

Note that another solution to this is to move all Hibernate configuration data 
to xwiki.properties… Since we allow property referencing in our 
xwiki.properties file it would solve my need too.

It's a lot more more work though (unless we support both, looking first in 
xwiki.properties for hibernate properties and fallbacking to older 
hibernate.cfg.xml if not found, in which case it's a little less work but still 
substantial). I'm still unsure I'm prepared to work on this now… :)

WDYT?

I don't like this that much, since there's a lot more that can be configured in the xml file, and the .properties is already getting very big.

--
Sergiu Dumitriu
http://purl.org/net/sergiu/
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