ICU-5407 Readd code for JDK 1.3 compatibility.

X-SVN-Rev: 20488

icu4j/src/com/ibm/icu/impl/ByteBuffer.java

@@ -0,0 +1,68 @@
+/*
+ * *****************************************************************************
+ * Copyright (C) 2006, International Business Machines Corporation and others.
+ * All Rights Reserved.
+ * *****************************************************************************
+ */
+// dlf13 internal 1.3 compatibility only
+package com.ibm.icu.impl;
+
+/**
+ * @internal
+ */
+public final class ByteBuffer {
+    private byte[] data;
+
+    private int pos;
+
+    private int limit;
+
+    private ByteBuffer() {
+    }
+
+    public byte[] array() {
+        byte[] result = new byte[limit];
+        for (int i = 0; i < limit; ++i) {
+            result[i] = data[i];
+        }
+        return result;
+    }
+
+    public static ByteBuffer wrap(byte[] data) {
+        if (data == null)
+            throw new NullPointerException();
+        ByteBuffer result = new ByteBuffer();
+        result.data = data;
+        result.pos = 0;
+        result.limit = data.length;
+        return result;
+    }
+
+    public int limit() {
+        return limit;
+    }
+
+    public int remaining() {
+        return limit - pos;
+    }
+
+    public byte get() {
+        if (pos < limit)
+            return data[pos++];
+        throw new IndexOutOfBoundsException();
+    }
+
+    public void get(byte[] dst, int offset, int length) {
+        if (offset < 0 || offset + length > dst.length || pos + length > limit) {
+            throw new IndexOutOfBoundsException();
+        }
+        for (int i = 0; i < length; ++i) {
+            dst[offset++] = data[pos++];
+        }
+    }
+    public static final ByteBuffer allocate(int size){
+        ByteBuffer ret = new ByteBuffer();
+        ret.data = new byte[size];
+        return ret;
+    }
+}