[New] Added CertificateThreadLocal

privilege/src/main/java/li/strolch/privilege/model/CertificateThreadLocal.java

@@ -0,0 +1,27 @@
+package li.strolch.privilege.model;
+
+public class CertificateThreadLocal extends ThreadLocal<Certificate> {
+
+	private static final CertificateThreadLocal instance = new CertificateThreadLocal();
+
+	public static boolean hasCert() {
+		return instance.get() != null;
+	}
+
+	public static Certificate getCert() {
+		Certificate cert = instance.get();
+		if (cert == null)
+			throw new IllegalStateException("No Cert available on thread " + Thread.currentThread().getName());
+		return cert;
+	}
+
+	public static void setCert(Certificate cert) {
+		if (instance.get() != null)
+			throw new IllegalStateException("THIS THREAD HAS ALREADY HAS A CERT!");
+		instance.set(cert);
+	}
+
+	public static void removeCert() {
+		instance.remove();
+	}
+}