Add node() method

jpos/src/main/java/org/jpos/util/PGPHelper.java

@@ -33,6 +33,7 @@
 import org.bouncycastle.openpgp.operator.PBESecretKeyDecryptor;
 import org.bouncycastle.openpgp.operator.bc.*;
 import org.bouncycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
+import org.jpos.core.Environment;
 import org.jpos.iso.ISOUtil;
 import org.jpos.log.evt.License;
 import org.jpos.q2.Q2;
@@ -45,9 +46,19 @@ public class PGPHelper {
     private static KeyFingerPrintCalculator fingerPrintCalculator = new BcKeyFingerprintCalculator();
     private static final String PUBRING = "META-INF/.pgp/pubring.asc";
     private static final String SIGNER = "[email protected]";
+    private static int node;
     static {
         if(Security.getProvider("BC") == null)
             Security.addProvider(new BouncyCastleProvider());
+
+        String nodeString = Environment.get("${q2.node:1}");
+        Pattern pattern = Pattern.compile("\\d+");
+
+        node = (nodeString == null || nodeString.isEmpty())
+          ? 1
+          : (pattern.matcher(nodeString).find()
+          ? Integer.parseInt(pattern.matcher(nodeString).group())
+          : 1);
     }
 
     private static boolean verifySignature(InputStream in, PGPPublicKey pk) throws IOException, PGPException {
@@ -205,7 +216,9 @@ public static int checkLicense() {
                             }
                             matcher = p2.matcher(s);
                             if (matcher.find() && matcher.groupCount() == 2) {
-                                rc |= Integer.parseInt(matcher.group(2));
+                                int n = Integer.parseInt(matcher.group(2));
+                                node = n >= node ? node : 0;
+                                rc |= n;
                             }
                             if (s.contains(h)) {
                                 rc &= 0xEFFFF;
@@ -248,6 +261,10 @@ public static String getLicenseeHash() throws IOException, NoSuchAlgorithmExcept
         return ISOUtil.hexString(hash(getLicensee()));
     }
 
+    public static int node () {
+        return node;
+    }
+
     /**
      * Simple PGP encryptor between byte[].
      *