[Tapestry-developer] Configuring Tapestry properties

[Malcolm Edgar]

Often application servers have very convoluted batch files/scripts for launching, and hacking these to add Tapestry system properties is last thing you want to do.

Here is a neat way (well I think so) of configuring these properties using an application specification extension bean.

Add the extension element to you application specification and add the TapestryPropertiesSetter class.

The extentions element in specification, initializes the TapestryPropertiesSetter bean and sets the configuration properties when the application loaded.

Configuring Assets to an external directory can make a big difference to performance.

regards Malcolm

-------------------------------

<extension name="sys-props" class="com.mycorp.TapestryPropertiesSetter" immediate="yes">
<configure property-name="disableCaching" type="boolean">true</configure>
<configure property-name="assetDir" type="String">C:/java/jakarta-tomcat-4.1.18/webapps/tutorial/asset</configure>
<configure property-name="assetURL" type="String">asset</configure>
</extension>

-------------------------------

package com.mycorp;

public class TapestryPropertiesSetter
{
public void enableResetService(boolean enableReset)
{
System.setProperty("net.sf.tapestry.enable-reset-service", "" + enableReset);
}

public void setDisableCaching(boolean disableCaching)
{
System.setProperty("net.sf.tapestry.disable-caching", "" + disableCaching);
}

public void setAssetDir(String assetDir)
{
System.setProperty("net.sf.tapestry.asset.dir", assetDir);
}

public void setAssetURL(String assetURL)
{
System.setProperty("net.sf.tapestry.asset.URL", assetURL);
}
}

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