/** Loads all existing repository infos from persisent storage. */
private void preload() {
try {
File[] files = getWorkingDir().listFiles(new ExtensionFilter(EXT_REPOSITORY));
long now = System.currentTimeMillis();
/** @todo make user configurable */
long delta = 1000 * 60 * 60 * 24 * 15;
for (int i = 0; i < files.length; i++) {
ClassRepositoryEntry.Info info = loadInfo(files[i]);
_infos.add(info);
if ((files[i].lastModified() + delta) < now) {
// remove repository file not used for a long time
if (!files[i].delete()) {
Object[] args = {files[i]};
Loggers.IO.l7dlog(Level.INFO, "IMPORT_DELETE_UNUSED_ERR", args, null);
}
}
}
} catch (Throwable ex) {
_infos.clear();
Loggers.IO.warn("Error preloading the class repository, no import optimizaton available", ex);
}
}
/**
* Creates a new entry.
*
* @param location location of the package to add.
* @param path path to add.
* @param types the package types.
* @param verify if <code>true</code> the package root check will be performed.
* @return if <code>verify == true</code> returns <code>true</code> when the given location could
* be verified, <code>false</code> if the given location is no package root; otherwise always
* returns <code>true</code>.
*/
private static boolean createEntryImpl(
File location, String path, final Set types, boolean verify) {
// strip extension
path = path.substring(0, path.lastIndexOf('.'));
int pos = path.lastIndexOf('$');
// is this an inner class?
if (pos > -1) {
String className = path.substring(pos + 1);
// skip anonymous inner classes
if (StringHelper.isNumber(className)) {
return true;
}
path = path.replace('$', '.');
} else if (verify) {
try {
// we setup a classloader with the given location and check
// whether the location is indeed a package root
URL[] url = new URL[] {location.toURL()};
ClassLoader loader = new URLClassLoader(url, ClassRepository.class.getClassLoader());
loader.loadClass(path.replace(File.separatorChar, '.'));
} catch (ClassNotFoundException ex) {
Object[] args = {path, location};
Loggers.IO.l7dlog(Level.WARN, "REPOSITORY_NOT_PACKAGE_ROOT", args, null);
return false;
} catch (Throwable ex) {
return false;
}
}
String typeName = StringHelper.getClassName(path);
// HACK skip obfuscated classes
// this is necessary to make our import declaration expanding working
// as it could easily be, that an identifier reported by the parser
// would be wrongly taken as a type name:
//
// Database d = new Database();
// d.shutdown();
// ^
// 'd' would be reported as an identifier which is perfect but
// lead to wrong results as there could be a class 'd.class' for
// obfuscated librarys
if ((typeName.length() == 1) && Character.isLowerCase(typeName.charAt(0))) {
return true;
}
String packageName = StringHelper.getPackageName(path);
// we place this marker in front of every subpackage so we know
// where a package starts (purely for the searching facility in
// ImportTransformation.java)
if (!EMPTY_STRING.equals(packageName)) {
types.add(packageName + '#');
}
types.add(path);
return true;
}