1 files changed, 100 insertions, 0 deletions
diff --git a/sample-apps/src/main/java/org/onap/integration/actninterfacetools/sampleapp/mpiconverter/converter/PncUtils.java b/sample-apps/src/main/java/org/onap/integration/actninterfacetools/sampleapp/mpiconverter/converter/PncUtils.java
new file mode 100644
index 0000000..3d92d4c
--- /dev/null
+++ b/sample-apps/src/main/java/org/onap/integration/actninterfacetools/sampleapp/mpiconverter/converter/PncUtils.java
@@ -0,0 +1,100 @@
+/*
+ *   ============LICENSE_START=======================================================
+ *   Actn Interface Tools
+ *   ================================================================================
+ *   Copyright (C) 2023 Huawei Canada Limited.
+ *   ================================================================================
+ *   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.integration.actninterfacetools.sampleapp.mpiconverter.converter;
+
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class PncUtils {
+
+    private static final Logger log = LoggerFactory.getLogger(PncUtils.class);
+    //startIdx is 1-indexing;
+    public static void setBitsZero(byte[] bytes, int startIdx, int length){
+        int currentByteIdx = (startIdx -1) / 8;
+
+        if (currentByteIdx < bytes.length){
+            byte currByte = bytes[currentByteIdx];
+            int offset = startIdx ;
+            while (offset - startIdx < length){
+                int currBitIdx = (offset - 1) % 8;
+                currByte = (byte) (currByte & ~(1 << (7 - currBitIdx)));
+                bytes[currentByteIdx] = currByte;
+                if (currBitIdx == 7){
+                    currentByteIdx++;
+                    if (currentByteIdx < bytes.length ){
+                        currByte = bytes[currentByteIdx];
+                    }
+                }
+                offset++;
+            }
+            return;
+        }
+        throw new IllegalArgumentException("PncUtils: setBits: Illegal Argument");
+    }
+
+    public static void setBitsOne(byte[] bytes, int startIdx, int length){
+        int currentByteIdx = (startIdx -1) / 8;
+
+        if (currentByteIdx < bytes.length){
+            byte currByte = bytes[currentByteIdx];
+            int offset = startIdx ;
+            while (offset - startIdx < length){
+                int currBitIdx = (offset - 1) % 8;
+                currByte = (byte) (currByte | (1 << (7 - currBitIdx)));
+                bytes[currentByteIdx] = currByte;
+                if (currBitIdx == 7){
+                    currentByteIdx++;
+                    if (currentByteIdx < bytes.length ){
+                        currByte = bytes[currentByteIdx];
+                    }
+                }
+                offset++;
+            }
+            return;
+        }
+        throw new IllegalArgumentException("PncUtils: setBits: Illegal Argument");
+    }
+
+    public static boolean isBitsOne(byte[] bytes, int startIdx, int length){
+        int currentByteIdx = (startIdx -1) / 8;
+
+        if (currentByteIdx < bytes.length){
+            byte currByte = bytes[currentByteIdx];
+            int offset = startIdx ;
+            while (offset - startIdx < length){
+                int currBitIdx = (offset - 1) % 8;
+                if ( ((0x01 << (7 - currBitIdx)) & currByte) == 0){
+                    return false;
+                };
+                if (currBitIdx == 7){
+                    bytes[currentByteIdx] = currByte;
+                    currentByteIdx++;
+                    if (currentByteIdx < bytes.length ){
+                        currByte = bytes[currentByteIdx];
+                    }
+                }
+                offset++;
+            }
+            return true;
+        }
+        throw new IllegalArgumentException("PncUtils: setBits: Illegal Argument");
+    }
+}