1 files changed, 89 insertions, 0 deletions
diff --git a/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/database/Portstatus.java b/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/database/Portstatus.java
new file mode 100644
index 000000000..ed6c95fd2
--- /dev/null
+++ b/sdnr/wt/common/src/main/java/org/onap/ccsdk/features/sdnr/wt/common/database/Portstatus.java
@@ -0,0 +1,89 @@
+/*******************************************************************************
+ * ============LICENSE_START========================================================================
+ * ONAP : ccsdk feature sdnr wt
+ * =================================================================================================
+ * Copyright (C) Apache Camel project
+ * =================================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ * ============LICENSE_END==========================================================================
+ ******************************************************************************/
+
+package org.onap.ccsdk.features.sdnr.wt.common.database;
+
+import java.io.IOException;
+import java.net.Socket;
+import org.onap.ccsdk.features.sdnr.wt.common.database.config.HostInfo;
+
+public class Portstatus {
+
+    public static final int MIN_PORT_NUMBER = 0;
+    public static final int MAX_PORT_NUMBER = 65535;
+
+    /**
+     * Checks to see if a specific port is available.
+     *
+     * @param port the port to check for availability
+     */
+    public static boolean isAvailable(String dnsName, int port) {
+        if (port < MIN_PORT_NUMBER || port > MAX_PORT_NUMBER) {
+            throw new IllegalArgumentException("Invalid start port: " + port);
+        }
+
+        Socket ss = null;
+        try {
+            ss = new Socket(dnsName, port);
+            ss.setReuseAddress(true);
+            return true;
+        } catch (IOException e) {
+        } finally {
+            if (ss != null) {
+                try {
+                    ss.close();
+                } catch (IOException e) {
+                    /* should not be thrown */
+                }
+            }
+        }
+
+        return false;
+    }
+
+    public static boolean isAvailable(HostInfo... hosts) {
+        for (HostInfo host : hosts) {
+           if (!isAvailable(host.hostname, host.port)) {
+               return false;
+           }
+       }
+       return true;
+    }
+
+    public static boolean waitSecondsTillAvailable(long timeoutSeconds, HostInfo... hosts) {
+
+        if (timeoutSeconds < 0) {
+            throw new IllegalArgumentException("Invalid timeout: " + timeoutSeconds);
+        }
+        long waitSeconds = 0;
+        boolean res = false;
+        while ( (timeoutSeconds == 0 || ++waitSeconds < timeoutSeconds) && !(res = isAvailable(hosts))) {
+            try {
+                Thread.sleep(1000);
+            } catch (InterruptedException e) {
+                Thread.currentThread().interrupt();
+            }
+        }
+        return res;
+    }
+
+    public static boolean waitSecondsTillAvailable(long timeoutSeconds, String dnsName, int port ) {
+        return waitSecondsTillAvailable(timeoutSeconds, new HostInfo(dnsName, port));
+    }
+
+}