/**
* Add all the contents of a Hashtable to the context.
*
* @param Context context to fill with objects
* @param Hashtable source of objects
*/
protected void fillContextHash(Context context, Hashtable objs) {
Enumeration enm = objs.keys();
while (enm.hasMoreElements()) {
String key = enm.nextElement().toString();
context.put(key, objs.get(key));
}
}
/**
* Parse an input and write the output to an output file. If the output file parameter is null or
* an empty string the result is returned as a string object. Otherwise an empty string is
* returned. You can add objects to the context with the objs Hashtable.
*
* @param String input template
* @param String inputEncoding template encoding
* @param String output file
* @param String outputEncoding encoding of output file
* @param String id for object to be placed in the control context
* @param String object to be placed in the context
* @return String generated output from velocity
*/
public String parse(
String inputTemplate,
String intputEncoding,
String outputFile,
String outputEncoding,
String objectID,
Object object)
throws Exception {
if (objectID != null && object != null) {
controlContext.put(objectID, object);
}
Template template =
getTemplate(inputTemplate, inputEncoding != null ? inputEncoding : this.inputEncoding);
if (outputFile == null || outputFile.equals("")) {
StringWriter sw = new StringWriter();
template.merge(controlContext, sw);
return sw.toString();
} else {
Writer writer = null;
if (writers.get(outputFile) == null) {
/*
* We have never seen this file before so create
* a new file writer for it.
*/
writer =
getWriter(
getOutputPath() + File.separator + outputFile,
outputEncoding != null ? outputEncoding : this.outputEncoding);
/*
* Place the file writer in our collection
* of file writers.
*/
writers.put(outputFile, writer);
} else {
writer = (Writer) writers.get(outputFile);
}
VelocityContext vc = new VelocityContext(controlContext);
template.merge(vc, writer);
// commented because it is closed in shutdown();
// fw.close();
return "";
}
}
/**
* Add objects to the context from the current properties.
*
* @param Context control context to fill with objects that are specified in the
* default.properties file
*/
protected void fillContextProperties(Context context) {
Enumeration enm = props.propertyNames();
while (enm.hasMoreElements()) {
String nm = (String) enm.nextElement();
if (nm.startsWith("context.objects.")) {
String contextObj = props.getProperty(nm);
int colon = nm.lastIndexOf('.');
String contextName = nm.substring(colon + 1);
try {
Class cls = Class.forName(contextObj);
Object o = cls.newInstance();
context.put(contextName, o);
} catch (Exception e) {
e.printStackTrace();
// TO DO: Log Something Here
}
}
}
}
/**
* Add properties that will aways be in the context by default
*
* @param Context control context to fill with default values.
*/
protected void fillContextDefaults(Context context) {
context.put("generator", instance);
context.put("outputDirectory", getOutputPath());
}
