1 files changed, 69 insertions, 0 deletions
diff --git a/cdf/src/cdf-prop-value/cdf-util/src/main/java/org/onap/dcae/cdf/util/common/Uid.java b/cdf/src/cdf-prop-value/cdf-util/src/main/java/org/onap/dcae/cdf/util/common/Uid.java
new file mode 100644
index 0000000..99feeb3
--- /dev/null
+++ b/cdf/src/cdf-prop-value/cdf-util/src/main/java/org/onap/dcae/cdf/util/common/Uid.java
@@ -0,0 +1,69 @@
+/*
+    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.io.File;
+import java.io.BufferedReader;
+import java.io.FileReader;
+import org.onap.dcae.cdf.util.common.Popen;
+
+public class Uid {
+    /**
+     * Return the uid.
+     */
+    public static int getUid() { return uid; }
+    public static String getUidStr() { return uidStr; }
+
+    private static int uid = -1;
+    private static String uidStr = "";
+    static {
+	try {
+	    uid = getUidFromProcSelfStatus();
+	    if (uid == -1) uid = getUidFromIdU();
+	    uidStr = Integer.toString(uid);
+	} catch (java.io.IOException e) {
+	    uid = -1;
+	    uidStr = "-1";
+	    System.err.println("Exception: " + e);
+	} catch (Exception e) {
+	    System.err.println("Exception: " + e);
+	}
+	
+    }
+
+    private static int getUidFromProcSelfStatus() throws java.io.IOException {
+	int uid = -1;
+	if (true) return -1;
+	BufferedReader br = new BufferedReader(new FileReader(new File("/proc/self/status")));
+	String thisLine = null;
+	while ((thisLine = br.readLine()) != null) {
+	    if (thisLine.startsWith("Uid:")) {
+		String[] uids = thisLine.split("[: \t]+");
+		if (uids.length > 1) {
+		    uid = Integer.parseInt(uids[1]);
+		    break;
+		}
+	    }
+	}
+	br.close();
+	return uid;
+    }
+
+    private static int getUidFromIdU() throws java.io.IOException, java.lang.InterruptedException {
+	Popen.Results results = Popen.popen("/usr/bin/id -u");
+	uid = Integer.parseInt(results.stdout.trim());
+	return uid;
+    }
+}