1 files changed, 41 insertions, 0 deletions
diff --git a/framework/src/onos/pcep/pcepio/src/main/java/org/onosproject/pcepio/util/HexDump.java b/framework/src/onos/pcep/pcepio/src/main/java/org/onosproject/pcepio/util/HexDump.java
new file mode 100644
index 00000000..60ff8848
--- /dev/null
+++ b/framework/src/onos/pcep/pcepio/src/main/java/org/onosproject/pcepio/util/HexDump.java
@@ -0,0 +1,41 @@
+package org.onosproject.pcepio.util;
+
+import org.jboss.netty.buffer.ChannelBuffer;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Provides Hex Dump for debugging.
+ */
+public final class HexDump {
+    protected static final Logger log = LoggerFactory.getLogger(HexDump.class);
+
+    private HexDump() {
+    }
+
+    public static void pcepHexDump(ChannelBuffer buff) {
+
+        log.debug("==================== HEX DUMP ======================");
+        try {
+            byte[] yTemp;
+            yTemp = buff.array();
+
+            int iStartIndex = buff.readerIndex();
+            int iEndIndex = buff.writerIndex();
+            do {
+                StringBuilder sb = new StringBuilder();
+                for (int k = 0; (k < 16) && (iStartIndex < iEndIndex); ++k) {
+                    if (0 == k % 4) {
+                        sb.append(String.format(" ")); //blank after 4 bytes
+                    }
+                    sb.append(String.format("%02X ", yTemp[iStartIndex++]));
+                }
+                log.debug(sb.toString());
+            } while (iStartIndex < iEndIndex);
+        } catch (Exception e) {
+            log.error("[HexDump] Invalid buffer: " + e.toString());
+        }
+
+        log.debug("===================================================");
+    }
+}