/**
* resolve properties inside a properties object
*
* @param props properties to resolve
* @param xmlProp
* @param file
*/
private void resolveAllProperties(Properties props, IXMLElement xmlProp, File file)
throws CompilerException {
variableSubstitutor.setBracesRequired(true);
for (Enumeration e = props.keys(); e.hasMoreElements(); ) {
String name = (String) e.nextElement();
String value = props.getProperty(name);
int mods = -1;
do {
StringReader read = new StringReader(value);
StringWriter write = new StringWriter();
try {
try {
mods = variableSubstitutor.substitute(read, write, SubstitutionType.TYPE_AT);
} catch (Exception e1) {
throw new IOException(e1.getMessage());
}
// TODO: check for circular references. We need to know
// which
// variables were substituted to do that
props.put(name, value);
} catch (IOException ex) {
assertionHelper.parseError(xmlProp, "Faild to load file: " + file.getAbsolutePath(), ex);
}
} while (mods != 0);
}
}
/**
* Set the property in the project to the value. If the task was give a file, resource or env
* attribute here is where it is loaded.
*
* @param xmlProp
*/
public void execute(IXMLElement xmlProp) throws CompilerException {
File file = null;
String name = xmlProp.getAttribute("name");
String value = xmlProp.getAttribute("value");
String environnement = xmlProp.getAttribute("environment");
if (environnement != null && !environnement.endsWith(".")) {
environnement += ".";
}
String prefix = xmlProp.getAttribute("prefix");
if (prefix != null && !prefix.endsWith(".")) {
prefix += ".";
}
String filename = xmlProp.getAttribute("file");
if (filename != null) {
file = new File(filename);
}
if (name != null) {
if (value == null) {
assertionHelper.parseError(xmlProp, "You must specify a value with the name attribute");
}
} else {
if (file == null && environnement == null) {
assertionHelper.parseError(
xmlProp, "You must specify file, or environment when not using the name attribute");
}
}
if (file == null && prefix != null) {
assertionHelper.parseError(xmlProp, "Prefix is only valid when loading from a file ");
}
if ((name != null) && (value != null)) {
addProperty(name, value);
} else if (file != null) {
loadFile(file, xmlProp, prefix);
} else if (environnement != null) {
loadEnvironment(environnement, xmlProp, file);
}
}
/**
* load properties from a file
*
* @param file file to load
* @param xmlProp
* @param prefix
*/
private void loadFile(File file, IXMLElement xmlProp, String prefix) throws CompilerException {
Properties props = new Properties();
packagerListener.packagerMsg("Loading " + file.getAbsolutePath(), PackagerListener.MSG_VERBOSE);
try {
if (file.exists()) {
FileInputStream fis = new FileInputStream(file);
try {
props.load(fis);
} finally {
fis.close();
}
addProperties(props, xmlProp, file, prefix);
} else {
packagerListener.packagerMsg(
"Unable to find property file: " + file.getAbsolutePath(),
PackagerListener.MSG_VERBOSE);
}
} catch (IOException ex) {
assertionHelper.parseError(xmlProp, "Faild to load file: " + file.getAbsolutePath(), ex);
}
}
