cloud.piranha.micro.loader.StaticURLStreamHandlerFactory Maven / Gradle / Ivy
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package cloud.piranha.micro.loader;
import java.net.URL;
import java.net.URLConnection;
import java.net.URLStreamHandler;
import java.net.URLStreamHandlerFactory;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Function;
/**
* A factory for URL stream handlers using a static map to contain handlers.
*
*
* This factory should be registered with the JVM early. Later on the HANDLERS map
* can be used to register individual URL stream handlers for various protocols.
*
* @author Arjan Tijms
*/
public class StaticURLStreamHandlerFactory implements URLStreamHandlerFactory {
/**
* Stores the handlers.
*/
private static final Map> HANDLERS = new ConcurrentHashMap<>();
/**
* {@return the handlers}
*/
public static Map> getHandlers() {
return HANDLERS;
}
@Override
public URLStreamHandler createURLStreamHandler(String protocol) {
if (!HANDLERS.containsKey(protocol)) {
return null;
}
return new StaticStreamHandler(protocol, HANDLERS);
}
}