@SuppressWarnings("unchecked")
private void loadDefaults(PropertyMap properties, Set<String> files) throws Exception {
// update substitutions if provided
PropertyMap substitutions = properties.subMap("substitutions");
if (substitutions != null && substitutions.size() > 0) {
PropertyMap subs = SubstitutionFactory.getSubstitutions(substitutions, mResourceFactory);
if (subs != null) {
mSubstitutions.putAll(subs);
}
properties.remove("substitutions");
}
// Get file and perform substitution of env variables/system props
String fileName = properties.getString("properties.file");
if (mDebugEnabled) {
mServletContext.log("properties.file: " + fileName);
}
if (fileName != null) {
fileName = SubstitutionFactory.substitute(fileName, mSubstitutions);
}
// parse file if not yet parsed
if (fileName != null && !files.contains(fileName)) {
// Prevent properties file cycle.
files.add(fileName);
// load properties
PropertyMap props = mResourceFactory.getResourceAsProperties(fileName);
if (props != null) {
properties.putAll(props);
}
loadDefaults(properties, files);
} else {
PropertyMap factoryProps = properties.subMap("properties.factory");
if (factoryProps != null && factoryProps.size() > 0) {
PropertyMap map = loadProperties(factoryProps);
properties.putAll(map);
}
}
}
private PropertyMap loadProperties(PropertyMap factoryProps) throws Exception {
String className = null;
PropertyMapFactory factory = null;
if (factoryProps != null
&& factoryProps.size() > 0
&& (className = factoryProps.getString("class")) != null) {
if (mDebugEnabled) {
mServletContext.log("Using property factory: " + className);
}
// Load and use custom PropertyMapFactory.
Class<?> factoryClass = Class.forName(className);
java.lang.reflect.Constructor<?> ctor = factoryClass.getConstructor(new Class[] {Map.class});
factory = (PropertyMapFactory) ctor.newInstance(new Object[] {factoryProps.subMap("init")});
} else if (factoryProps == null) {
if (mDebugEnabled) {
mServletContext.log("factoryProps is null.");
}
} else if (factoryProps.size() == 0) {
if (mDebugEnabled) {
mServletContext.log("factory props size is 0.");
}
} else {
if (mDebugEnabled) {
mServletContext.log("className is null");
}
}
// return properties
PropertyMap result = null;
if (factory != null) {
result = factory.createProperties();
if (mDebugEnabled) {
mServletContext.log("properties: " + result);
}
}
return result;
}
