Renaming openecomp to onap

[aai/sparky-be.git] / src / main / java / org / onap / aai / sparky / util / RawByteHelper.java

diff --git a/src/main/java/org/onap/aai/sparky/util/RawByteHelper.java b/src/main/java/org/onap/aai/sparky/util/RawByteHelper.java
new file mode 100644 (file)
index 0000000..fcd54d1
--- /dev/null
+++ b/src/main/java/org/onap/aai/sparky/util/RawByteHelper.java
@@ -0,0 +1,174 @@
+/**
+ * ============LICENSE_START=======================================================
+ * org.onap.aai
+ * ================================================================================
+ * Copyright © 2017 AT&T Intellectual Property. All rights reserved.
+ * Copyright © 2017 Amdocs
+ * ================================================================================
+ * 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=========================================================
+ *
+ * ECOMP is a trademark and service mark of AT&T Intellectual Property.
+ */
+package org.onap.aai.sparky.util;
+
+/**
+ * The Class RawByteHelper.
+ */
+public class RawByteHelper {
+  private static final byte[] HEX_CHAR =
+      new byte[] {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};
+
+  /**
+   * Dump bytes.
+   *
+   * @param buffer the buffer
+   * @return the string
+   */
+  /*
+   * TODO -> DOCUMENT ME!
+   * 
+   * @param buffer DOCUMENT ME!
+   *
+   * @return DOCUMENT ME!
+   */
+  public static String dumpBytes(byte[] buffer) {
+    if (buffer == null) {
+      return "";
+    }
+    String newLine = System.getProperty("line.separator");
+    StringBuffer sb = new StringBuffer();
+
+    for (int i = 0; i < buffer.length; i++) {
+      if (i != 0 && i % 16 == 0) {
+        sb.append(newLine);
+      }
+      // sb.append("0x").append((char) (HEX_CHAR[(buffer[i] & 0x00F0) >> 4])).append((char)
+      // (HEX_CHAR[buffer[i] & 0x000F])).append(" ");
+      sb.append((char) (HEX_CHAR[(buffer[i] & 0x00F0) >> 4]))
+          .append((char) (HEX_CHAR[buffer[i] & 0x000F])).append(" ");
+    }
+
+    return sb.toString();
+  }
+
+  // if you're trying to figure out why or's w/ FF's see:
+  /**
+   * Bytes to int.
+   *
+   * @param one the one
+   * @param two the two
+   * @param three the three
+   * @param four the four
+   * @return the int
+   */
+  // http://www.darksleep.com/player/JavaAndUnsignedTypes.html
+  public static int bytesToInt(byte one, byte two, byte three, byte four) {
+    return (((0xFF & one) << 24) | ((0xFF & two) << 16) | ((0xFF & three) << 8) | ((0xFF & four)));
+  }
+
+  /**
+   * Bytes to short.
+   *
+   * @param one the one
+   * @param two the two
+   * @return the short
+   */
+  public static short bytesToShort(byte one, byte two) {
+    return (short) (((0xFF & one) << 8) | (0xFF & two));
+  }
+
+  /**
+   * First byte.
+   *
+   * @param num the num
+   * @return the byte
+   */
+  // short helper functions
+  static byte firstByte(short num) {
+    return (byte) ((num >> 8) & 0xFF);
+  }
+
+  /**
+   * First byte.
+   *
+   * @param num the num
+   * @return the byte
+   */
+  // Int helper functions
+  static byte firstByte(int num) {
+    return (byte) ((num >> 24) & 0xFF);
+  }
+
+  /**
+   * Second byte.
+   *
+   * @param num the num
+   * @return the byte
+   */
+  static byte secondByte(short num) {
+    return (byte) (num & 0xFF);
+  }
+
+  /**
+   * Second byte.
+   *
+   * @param num the num
+   * @return the byte
+   */
+  static byte secondByte(int num) {
+    return (byte) ((num >> 16) & 0xFF);
+  }
+
+  /**
+   * Third byte.
+   *
+   * @param num the num
+   * @return the byte
+   */
+  static byte thirdByte(int num) {
+    return (byte) ((num >> 8) & 0xFF);
+  }
+
+  /**
+   * Fourth byte.
+   *
+   * @param num the num
+   * @return the byte
+   */
+  static byte fourthByte(int num) {
+    return (byte) (num & 0xFF);
+  }
+
+  /**
+   * Int to byte.
+   *
+   * @param value the value
+   * @return the byte
+   */
+  public static byte intToByte(int value) {
+    return fourthByte(value);
+  }
+
+  /**
+   * Int to short.
+   *
+   * @param value the value
+   * @return the short
+   */
+  public static short intToShort(int value) {
+    return (short) ((value & 0xFF00) | (value & 0xFF));
+  }
+
+}
+