1 files changed, 108 insertions, 0 deletions
diff --git a/cdf/src/cdf-prop-value/cdf-util/src/main/java/org/onap/dcae/cdf/util/common/Hostname.java b/cdf/src/cdf-prop-value/cdf-util/src/main/java/org/onap/dcae/cdf/util/common/Hostname.java
new file mode 100644
index 0000000..4385c01
--- /dev/null
+++ b/cdf/src/cdf-prop-value/cdf-util/src/main/java/org/onap/dcae/cdf/util/common/Hostname.java
@@ -0,0 +1,108 @@
+/*
+    Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.  
+ 
+    Licensed under the Apache License, Version 2.0 (the "License"); 
+    you may not use this code 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. 
+
+*/
+package org.onap.dcae.cdf.util.common;
+
+import java.net.InetAddress;
+
+public class Hostname {
+
+    /** 
+     * Hostname FQDN
+     */
+    public static String getHostName() {
+        return getHostName("unknown.unknown");
+    }
+
+    /** 
+     * Hostname FQDN
+     */
+    public static String getHostName(String def) {
+        return (uname == null) ? def : hostName;
+    }
+
+    /** 
+     * uname, the 1st portion of the hostname FQDN
+     */
+    public static String getUname() {
+        return getUname("unknown");
+    }
+
+    /** 
+     * uname, the 1st portion of the hostname FQDN
+     */
+    public static String getUname(String def) {
+        return (uname == null) ? def : uname;
+    }
+
+    /**
+     *	Get an IP address for this machine
+     */
+    public static String getLocalIP() {
+	return defaultLocalIP;
+    }
+    /**
+     *	Get an IP address for this machine
+     */
+    public static String getLocalIPinHex() {
+	return defaultLocalIPinHex;
+    }
+    /**
+     *	Get a host name for this machine
+     */
+    public static String getCanonicalHostName() {
+	return defaultCanonicalHostName;
+    }
+
+    /**
+     *	Value returned by getLocalIP() method
+     */
+    private static String	defaultLocalIP;
+    private static String	defaultLocalIPinHex;
+    private static String	defaultCanonicalHostName;
+    private static String hostName = null;	// Hostname FQDN
+    private static String uname = null;		// Hostname 1st part
+
+    static {
+	try {
+	    InetAddress ia = InetAddress.getLocalHost();
+	    defaultLocalIP = ia.getHostAddress();
+	    byte b[] = ia.getAddress();
+	    defaultLocalIPinHex = Convert.toHexString(b);
+	    defaultCanonicalHostName = ia.getCanonicalHostName();
+	} catch (Exception e) {
+	    defaultLocalIP = "127.0.0.1";
+	    defaultLocalIPinHex = "7F000001";
+	    defaultCanonicalHostName = "localhost";
+	}
+
+      try {
+         hostName = InetAddress.getLocalHost().getHostName();
+	 String hostNameParts[] = hostName.split("\\.");
+	 uname = hostNameParts[0];
+      } catch (Exception ex) {
+      }
+      int dotInHostname = hostName.indexOf('.');
+      if (dotInHostname > -1) hostName = hostName.substring(0, dotInHostname);
+    }
+
+    public static void main(String args[]) {
+	System.out.println("getHostName() = '" + getHostName() + "'");
+	System.out.println("getUname() = '" + getUname() + "'");
+	System.out.println("getLocalIP() = '" + getLocalIP() + "'");
+	System.out.println("getLocalIPinHex() = '" + getLocalIPinHex() + "'");
+	System.out.println("getCanonicalHostName() = '" + getCanonicalHostName() + "'");
+    }
+}