1 files changed, 79 insertions, 0 deletions
diff --git a/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/ByteDataTranslator.java b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/ByteDataTranslator.java
new file mode 100644
index 000000000..fedc3e5d2
--- /dev/null
+++ b/vpp-common/vpp-translate-utils/src/main/java/io/fd/honeycomb/translate/v3po/util/ByteDataTranslator.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2016 Cisco and/or its affiliates.
+ *
+ * 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 io.fd.honeycomb.translate.v3po.util;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+/**
+ * Trait providing logic for working with binary-based data
+ */
+public interface ByteDataTranslator {
+
+    /**
+     * Returns 0 if argument is null or false, 1 otherwise.
+     *
+     * @param value Boolean value to be converted
+     * @return byte value equal to 0 or 1
+     */
+    default byte booleanToByte(@Nullable final Boolean value) {
+        return value != null && value
+                ? (byte) 1
+                : (byte) 0;
+    }
+
+    /**
+     * Returns Boolean.TRUE if argument is 0, Boolean.FALSE otherwise.
+     *
+     * @param value byte value to be converted
+     * @return Boolean value
+     * @throws IllegalArgumentException if argument is neither 0 nor 1
+     */
+    @Nonnull
+    default Boolean byteToBoolean(final byte value) {
+        if (value == 0) {
+            return Boolean.FALSE;
+        } else if (value == 1) {
+            return Boolean.TRUE;
+        }
+        throw new IllegalArgumentException(String.format("0 or 1 was expected but was %d", value));
+    }
+
+    /**
+     * Reverses bytes in the byte array
+     *
+     * @param bytes input array
+     * @return reversed array
+     */
+    default byte[] reverseBytes(final byte[] bytes) {
+        final byte[] reversed = new byte[bytes.length];
+        int i = 1;
+        for (byte aByte : bytes) {
+            reversed[bytes.length - i++] = aByte;
+        }
+
+        return reversed;
+    }
+
+    /**
+     * Return (interned) string from byte array while removing \u0000. Strings represented as fixed length byte[] from
+     * vpp contain \u0000.
+     */
+    default String toString(final byte[] cString) {
+        return new String(cString).replaceAll("\\u0000", "").intern();
+    }
+}