@Override
public synchronized ClassLoader createClassLoader(PluginsSource source)
throws Exception { // NOSONAR
final String id = id(source);
clearClassLoader(id);
if (StringUtils.isEmpty(source.getArtifact())) {
return Thread.currentThread().getContextClassLoader();
}
URL[] urls = aether.resolve(source.getArtifact()).getAsUrls();
List<URL> tempUrls = new ArrayList<>();
File tempDir = FileUtil.createTempDirectory();
for (URL url : urls) {
File origin = new File(url.toURI());
File temp = createTempFile(origin.getName(), ".jar", tempDir);
copyFile(origin, temp);
tempUrls.add(temp.toURI().toURL());
}
final CamelotUrlClassloader classLoader =
new CamelotUrlClassloader(
tempUrls.toArray(new URL[tempUrls.size()]),
Thread.currentThread().getContextClassLoader());
classLoadersCache.put(id, new Entry(classLoader, tempDir));
return classLoader;
}
/** Generate the id for the loader */
private String id(PluginsSource source) {
return source.getArtifact() + "-" + identityHashCode(source);
}