private DefaultExpanderResolver resolveDSLFiles() throws IOException {
DefaultExpanderResolver resolver = new DefaultExpanderResolver();
final File dir = new File(this.srcdir.getAbsolutePath());
DSLMappingFile file = new DSLMappingFile();
FilenameFilter filter = new FilenameFilter() {
public boolean accept(File dir, String name) {
return name.endsWith(".dsl");
}
};
String[] children = dir.list(filter);
if (children.length == 0) {
throw new BuildException(
"There are no DSL files for this directory:"
+ this.srcdir.getAbsolutePath());
}
for (int index = 0; index < children.length; index++) {
if (file.parseAndLoad(new StringReader(loadResource(children[index])))) {
final Expander expander = new DefaultExpander();
expander.addDSLMapping(file.getMapping());
resolver.addExpander("*", expander);
} else {
throw new RuntimeDroolsException(
"Error parsing and loading DSL file."
+ file.getErrors());
}
}
return resolver;
}