[ONOS-4348] Yang Bits, Binary and Decimal64

Change-Id: I8e4e54a19a8f9634cbc56a07579a1730174f53f6
diff --git a/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangBinary.java b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangBinary.java
new file mode 100644
index 0000000..a43e9cd
--- /dev/null
+++ b/utils/yangutils/datamodel/src/main/java/org/onosproject/yangutils/datamodel/YangBinary.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * 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.
+ */
+
+package org.onosproject.yangutils.datamodel;
+
+import java.io.Serializable;
+import java.util.Base64;
+
+import org.onosproject.yangutils.datamodel.utils.builtindatatype.YangBuiltInDataTypeInfo;
+import org.onosproject.yangutils.datamodel.utils.builtindatatype.YangDataTypes;
+
+/*
+ * Reference RFC 6020.
+ *
+ * The binary built-in type represents any binary data,
+ * i.e., a sequence of octets.
+ */
+public class YangBinary implements YangBuiltInDataTypeInfo<YangBinary>, Serializable, Comparable<YangBinary> {
+
+    private static final long serialVersionUID = 2106201608L;
+
+    // Binary data is a decoded value by base64 decoding scheme from data input (jason)
+    private byte[] binaryData;
+
+    /**
+     * Creates a binary object corresponding to the base 64 encoding value.
+     *
+     * @param strValue base64 encoded value
+     */
+    public YangBinary(String strValue) {
+        setBinaryData(Base64.getDecoder().decode(strValue));
+    }
+
+    /**
+     * Retrieves decoded binary data.
+     *
+     * @return binary data
+     */
+    public byte[] getBinaryData() {
+        return binaryData;
+    }
+
+    /**
+     * Sets binary data.
+     *
+     * @param binaryData binary data
+     */
+    public void setBinaryData(byte[] binaryData) {
+        this.binaryData = binaryData;
+    }
+
+    /**
+     * Encodes binary data by base64 encoding scheme.
+     *
+     * @return encoded binary data
+     */
+    public String toString() {
+        return Base64.getEncoder()
+                     .encodeToString(binaryData);
+    }
+
+    @Override
+    public YangDataTypes getYangType() {
+        return YangDataTypes.BINARY;
+    }
+
+    @Override
+    public int compareTo(YangBinary o) {
+        for (int i = 0, j = 0; i < this.binaryData.length && j < o.binaryData.length; i++, j++) {
+            int a = (this.binaryData[i] & 0xff);
+            int b = (o.binaryData[j] & 0xff);
+            if (a != b) {
+                return a - b;
+            }
+        }
+        return this.binaryData.length - o.binaryData.length;
+    }
+}