You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by mi...@apache.org on 2016/03/11 17:59:46 UTC
[12/51] [partial] hbase-site git commit: Published site at
eea8b38dfa0180d3e6f93d3e8055d5d4fbf673c3.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/0b785cb2/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferUtils.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferUtils.html b/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferUtils.html
index 2969881..28fb3d5 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferUtils.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/util/ByteBufferUtils.html
@@ -55,8 +55,8 @@
<span class="sourceLineNo">047</span> public final static int VALUE_MASK = 0x7f;<a name="line.47"></a>
<span class="sourceLineNo">048</span> public final static int NEXT_BIT_SHIFT = 7;<a name="line.48"></a>
<span class="sourceLineNo">049</span> public final static int NEXT_BIT_MASK = 1 << 7;<a name="line.49"></a>
-<span class="sourceLineNo">050</span> private static final boolean UNSAFE_AVAIL = UnsafeAccess.isAvailable();<a name="line.50"></a>
-<span class="sourceLineNo">051</span> private static final boolean UNSAFE_UNALIGNED = UnsafeAccess.unaligned();<a name="line.51"></a>
+<span class="sourceLineNo">050</span> private static final boolean UNSAFE_AVAIL = UnsafeAvailChecker.isAvailable();<a name="line.50"></a>
+<span class="sourceLineNo">051</span> private static final boolean UNSAFE_UNALIGNED = UnsafeAvailChecker.unaligned();<a name="line.51"></a>
<span class="sourceLineNo">052</span><a name="line.52"></a>
<span class="sourceLineNo">053</span> private ByteBufferUtils() {<a name="line.53"></a>
<span class="sourceLineNo">054</span> }<a name="line.54"></a>
@@ -158,7 +158,7 @@
<span class="sourceLineNo">150</span> }<a name="line.150"></a>
<span class="sourceLineNo">151</span><a name="line.151"></a>
<span class="sourceLineNo">152</span> public static byte toByte(ByteBuffer buffer, int offset) {<a name="line.152"></a>
-<span class="sourceLineNo">153</span> if (UnsafeAccess.isAvailable()) {<a name="line.153"></a>
+<span class="sourceLineNo">153</span> if (UNSAFE_AVAIL) {<a name="line.153"></a>
<span class="sourceLineNo">154</span> return UnsafeAccess.toByte(buffer, offset);<a name="line.154"></a>
<span class="sourceLineNo">155</span> } else {<a name="line.155"></a>
<span class="sourceLineNo">156</span> return buffer.get(offset);<a name="line.156"></a>
@@ -210,7 +210,7 @@
<span class="sourceLineNo">202</span> }<a name="line.202"></a>
<span class="sourceLineNo">203</span><a name="line.203"></a>
<span class="sourceLineNo">204</span> public static int putByte(ByteBuffer buffer, int offset, byte b) {<a name="line.204"></a>
-<span class="sourceLineNo">205</span> if (UnsafeAccess.isAvailable()) {<a name="line.205"></a>
+<span class="sourceLineNo">205</span> if (UNSAFE_AVAIL) {<a name="line.205"></a>
<span class="sourceLineNo">206</span> return UnsafeAccess.putByte(buffer, offset, b);<a name="line.206"></a>
<span class="sourceLineNo">207</span> } else {<a name="line.207"></a>
<span class="sourceLineNo">208</span> buffer.put(offset, b);<a name="line.208"></a>
@@ -377,7 +377,7 @@
<span class="sourceLineNo">369</span> * @param out destination buffer<a name="line.369"></a>
<span class="sourceLineNo">370</span> */<a name="line.370"></a>
<span class="sourceLineNo">371</span> public static void copyFromBufferToBuffer(ByteBuffer in, ByteBuffer out) {<a name="line.371"></a>
-<span class="sourceLineNo">372</span> if (UnsafeAccess.isAvailable()) {<a name="line.372"></a>
+<span class="sourceLineNo">372</span> if (UNSAFE_AVAIL) {<a name="line.372"></a>
<span class="sourceLineNo">373</span> int length = in.remaining();<a name="line.373"></a>
<span class="sourceLineNo">374</span> UnsafeAccess.copy(in, in.position(), out, out.position(), length);<a name="line.374"></a>
<span class="sourceLineNo">375</span> out.position(out.position() + length);<a name="line.375"></a>
@@ -790,197 +790,210 @@
<span class="sourceLineNo">782</span> }<a name="line.782"></a>
<span class="sourceLineNo">783</span><a name="line.783"></a>
<span class="sourceLineNo">784</span> /**<a name="line.784"></a>
-<span class="sourceLineNo">785</span> * Reads an int value at the given buffer's offset.<a name="line.785"></a>
-<span class="sourceLineNo">786</span> * @param buffer<a name="line.786"></a>
-<span class="sourceLineNo">787</span> * @param offset<a name="line.787"></a>
-<span class="sourceLineNo">788</span> * @return int value at offset<a name="line.788"></a>
-<span class="sourceLineNo">789</span> */<a name="line.789"></a>
-<span class="sourceLineNo">790</span> public static int toInt(ByteBuffer buffer, int offset) {<a name="line.790"></a>
-<span class="sourceLineNo">791</span> if (UNSAFE_UNALIGNED) {<a name="line.791"></a>
-<span class="sourceLineNo">792</span> return UnsafeAccess.toInt(buffer, offset);<a name="line.792"></a>
-<span class="sourceLineNo">793</span> } else {<a name="line.793"></a>
-<span class="sourceLineNo">794</span> return buffer.getInt(offset);<a name="line.794"></a>
-<span class="sourceLineNo">795</span> }<a name="line.795"></a>
-<span class="sourceLineNo">796</span> }<a name="line.796"></a>
-<span class="sourceLineNo">797</span><a name="line.797"></a>
-<span class="sourceLineNo">798</span> /**<a name="line.798"></a>
-<span class="sourceLineNo">799</span> * Converts a ByteBuffer to an int value<a name="line.799"></a>
-<span class="sourceLineNo">800</span> *<a name="line.800"></a>
-<span class="sourceLineNo">801</span> * @param buf The ByteBuffer<a name="line.801"></a>
-<span class="sourceLineNo">802</span> * @param offset Offset to int value<a name="line.802"></a>
-<span class="sourceLineNo">803</span> * @param length Number of bytes used to store the int value.<a name="line.803"></a>
-<span class="sourceLineNo">804</span> * @return the int value<a name="line.804"></a>
-<span class="sourceLineNo">805</span> * @throws IllegalArgumentException<a name="line.805"></a>
-<span class="sourceLineNo">806</span> * if there's not enough bytes left in the buffer after the given offset<a name="line.806"></a>
-<span class="sourceLineNo">807</span> */<a name="line.807"></a>
-<span class="sourceLineNo">808</span> public static int readAsInt(ByteBuffer buf, int offset, final int length) {<a name="line.808"></a>
-<span class="sourceLineNo">809</span> if (offset + length > buf.limit()) {<a name="line.809"></a>
-<span class="sourceLineNo">810</span> throw new IllegalArgumentException("offset (" + offset + ") + length (" + length<a name="line.810"></a>
-<span class="sourceLineNo">811</span> + ") exceed the" + " limit of the buffer: " + buf.limit());<a name="line.811"></a>
-<span class="sourceLineNo">812</span> }<a name="line.812"></a>
-<span class="sourceLineNo">813</span> int n = 0;<a name="line.813"></a>
-<span class="sourceLineNo">814</span> for(int i = offset; i < (offset + length); i++) {<a name="line.814"></a>
-<span class="sourceLineNo">815</span> n <<= 8;<a name="line.815"></a>
-<span class="sourceLineNo">816</span> n ^= toByte(buf, i) & 0xFF;<a name="line.816"></a>
-<span class="sourceLineNo">817</span> }<a name="line.817"></a>
-<span class="sourceLineNo">818</span> return n;<a name="line.818"></a>
-<span class="sourceLineNo">819</span> }<a name="line.819"></a>
-<span class="sourceLineNo">820</span><a name="line.820"></a>
-<span class="sourceLineNo">821</span> /**<a name="line.821"></a>
-<span class="sourceLineNo">822</span> * Reads a long value at the given buffer's offset.<a name="line.822"></a>
-<span class="sourceLineNo">823</span> * @param buffer<a name="line.823"></a>
-<span class="sourceLineNo">824</span> * @param offset<a name="line.824"></a>
-<span class="sourceLineNo">825</span> * @return long value at offset<a name="line.825"></a>
-<span class="sourceLineNo">826</span> */<a name="line.826"></a>
-<span class="sourceLineNo">827</span> public static long toLong(ByteBuffer buffer, int offset) {<a name="line.827"></a>
-<span class="sourceLineNo">828</span> if (UNSAFE_UNALIGNED) {<a name="line.828"></a>
-<span class="sourceLineNo">829</span> return UnsafeAccess.toLong(buffer, offset);<a name="line.829"></a>
-<span class="sourceLineNo">830</span> } else {<a name="line.830"></a>
-<span class="sourceLineNo">831</span> return buffer.getLong(offset);<a name="line.831"></a>
-<span class="sourceLineNo">832</span> }<a name="line.832"></a>
-<span class="sourceLineNo">833</span> }<a name="line.833"></a>
-<span class="sourceLineNo">834</span><a name="line.834"></a>
-<span class="sourceLineNo">835</span> /**<a name="line.835"></a>
-<span class="sourceLineNo">836</span> * Put an int value out to the given ByteBuffer's current position in big-endian format.<a name="line.836"></a>
-<span class="sourceLineNo">837</span> * This also advances the position in buffer by int size.<a name="line.837"></a>
-<span class="sourceLineNo">838</span> * @param buffer the ByteBuffer to write to<a name="line.838"></a>
-<span class="sourceLineNo">839</span> * @param val int to write out<a name="line.839"></a>
-<span class="sourceLineNo">840</span> */<a name="line.840"></a>
-<span class="sourceLineNo">841</span> public static void putInt(ByteBuffer buffer, int val) {<a name="line.841"></a>
-<span class="sourceLineNo">842</span> if (UNSAFE_UNALIGNED) {<a name="line.842"></a>
-<span class="sourceLineNo">843</span> int newPos = UnsafeAccess.putInt(buffer, buffer.position(), val);<a name="line.843"></a>
-<span class="sourceLineNo">844</span> buffer.position(newPos);<a name="line.844"></a>
-<span class="sourceLineNo">845</span> } else {<a name="line.845"></a>
-<span class="sourceLineNo">846</span> buffer.putInt(val);<a name="line.846"></a>
-<span class="sourceLineNo">847</span> }<a name="line.847"></a>
-<span class="sourceLineNo">848</span> }<a name="line.848"></a>
-<span class="sourceLineNo">849</span><a name="line.849"></a>
-<span class="sourceLineNo">850</span> /**<a name="line.850"></a>
-<span class="sourceLineNo">851</span> * Reads a double value at the given buffer's offset.<a name="line.851"></a>
-<span class="sourceLineNo">852</span> * @param buffer<a name="line.852"></a>
-<span class="sourceLineNo">853</span> * @param offset offset where double is<a name="line.853"></a>
-<span class="sourceLineNo">854</span> * @return double value at offset<a name="line.854"></a>
-<span class="sourceLineNo">855</span> */<a name="line.855"></a>
-<span class="sourceLineNo">856</span> public static double toDouble(ByteBuffer buffer, int offset) {<a name="line.856"></a>
-<span class="sourceLineNo">857</span> return Double.longBitsToDouble(toLong(buffer, offset));<a name="line.857"></a>
-<span class="sourceLineNo">858</span> }<a name="line.858"></a>
-<span class="sourceLineNo">859</span><a name="line.859"></a>
-<span class="sourceLineNo">860</span> /**<a name="line.860"></a>
-<span class="sourceLineNo">861</span> * Reads a BigDecimal value at the given buffer's offset.<a name="line.861"></a>
-<span class="sourceLineNo">862</span> * @param buffer<a name="line.862"></a>
-<span class="sourceLineNo">863</span> * @param offset<a name="line.863"></a>
-<span class="sourceLineNo">864</span> * @return BigDecimal value at offset<a name="line.864"></a>
-<span class="sourceLineNo">865</span> */<a name="line.865"></a>
-<span class="sourceLineNo">866</span> public static BigDecimal toBigDecimal(ByteBuffer buffer, int offset, int length) {<a name="line.866"></a>
-<span class="sourceLineNo">867</span> if (buffer == null || length < Bytes.SIZEOF_INT + 1 ||<a name="line.867"></a>
-<span class="sourceLineNo">868</span> (offset + length > buffer.limit())) {<a name="line.868"></a>
-<span class="sourceLineNo">869</span> return null;<a name="line.869"></a>
-<span class="sourceLineNo">870</span> }<a name="line.870"></a>
-<span class="sourceLineNo">871</span><a name="line.871"></a>
-<span class="sourceLineNo">872</span> int scale = toInt(buffer, offset);<a name="line.872"></a>
-<span class="sourceLineNo">873</span> byte[] tcBytes = new byte[length - Bytes.SIZEOF_INT];<a name="line.873"></a>
-<span class="sourceLineNo">874</span> copyFromBufferToArray(tcBytes, buffer, offset + Bytes.SIZEOF_INT, 0, length - Bytes.SIZEOF_INT);<a name="line.874"></a>
-<span class="sourceLineNo">875</span> return new BigDecimal(new BigInteger(tcBytes), scale);<a name="line.875"></a>
-<span class="sourceLineNo">876</span> }<a name="line.876"></a>
-<span class="sourceLineNo">877</span><a name="line.877"></a>
-<span class="sourceLineNo">878</span> /**<a name="line.878"></a>
-<span class="sourceLineNo">879</span> * Put a short value out to the given ByteBuffer's current position in big-endian format.<a name="line.879"></a>
-<span class="sourceLineNo">880</span> * This also advances the position in buffer by short size.<a name="line.880"></a>
-<span class="sourceLineNo">881</span> * @param buffer the ByteBuffer to write to<a name="line.881"></a>
-<span class="sourceLineNo">882</span> * @param val short to write out<a name="line.882"></a>
-<span class="sourceLineNo">883</span> */<a name="line.883"></a>
-<span class="sourceLineNo">884</span> public static void putShort(ByteBuffer buffer, short val) {<a name="line.884"></a>
-<span class="sourceLineNo">885</span> if (UNSAFE_UNALIGNED) {<a name="line.885"></a>
-<span class="sourceLineNo">886</span> int newPos = UnsafeAccess.putShort(buffer, buffer.position(), val);<a name="line.886"></a>
-<span class="sourceLineNo">887</span> buffer.position(newPos);<a name="line.887"></a>
-<span class="sourceLineNo">888</span> } else {<a name="line.888"></a>
-<span class="sourceLineNo">889</span> buffer.putShort(val);<a name="line.889"></a>
-<span class="sourceLineNo">890</span> }<a name="line.890"></a>
-<span class="sourceLineNo">891</span> }<a name="line.891"></a>
-<span class="sourceLineNo">892</span><a name="line.892"></a>
-<span class="sourceLineNo">893</span> /**<a name="line.893"></a>
-<span class="sourceLineNo">894</span> * Put a long value out to the given ByteBuffer's current position in big-endian format.<a name="line.894"></a>
-<span class="sourceLineNo">895</span> * This also advances the position in buffer by long size.<a name="line.895"></a>
-<span class="sourceLineNo">896</span> * @param buffer the ByteBuffer to write to<a name="line.896"></a>
-<span class="sourceLineNo">897</span> * @param val long to write out<a name="line.897"></a>
-<span class="sourceLineNo">898</span> */<a name="line.898"></a>
-<span class="sourceLineNo">899</span> public static void putLong(ByteBuffer buffer, long val) {<a name="line.899"></a>
-<span class="sourceLineNo">900</span> if (UNSAFE_UNALIGNED) {<a name="line.900"></a>
-<span class="sourceLineNo">901</span> int newPos = UnsafeAccess.putLong(buffer, buffer.position(), val);<a name="line.901"></a>
-<span class="sourceLineNo">902</span> buffer.position(newPos);<a name="line.902"></a>
-<span class="sourceLineNo">903</span> } else {<a name="line.903"></a>
-<span class="sourceLineNo">904</span> buffer.putLong(val);<a name="line.904"></a>
-<span class="sourceLineNo">905</span> }<a name="line.905"></a>
-<span class="sourceLineNo">906</span> }<a name="line.906"></a>
-<span class="sourceLineNo">907</span> /**<a name="line.907"></a>
-<span class="sourceLineNo">908</span> * Copies the bytes from given array's offset to length part into the given buffer. Puts the bytes<a name="line.908"></a>
-<span class="sourceLineNo">909</span> * to buffer's current position. This also advances the position in the 'out' buffer by 'length'<a name="line.909"></a>
-<span class="sourceLineNo">910</span> * @param out<a name="line.910"></a>
-<span class="sourceLineNo">911</span> * @param in<a name="line.911"></a>
-<span class="sourceLineNo">912</span> * @param inOffset<a name="line.912"></a>
-<span class="sourceLineNo">913</span> * @param length<a name="line.913"></a>
-<span class="sourceLineNo">914</span> */<a name="line.914"></a>
-<span class="sourceLineNo">915</span> public static void copyFromArrayToBuffer(ByteBuffer out, byte[] in, int inOffset, int length) {<a name="line.915"></a>
-<span class="sourceLineNo">916</span> if (out.hasArray()) {<a name="line.916"></a>
-<span class="sourceLineNo">917</span> System.arraycopy(in, inOffset, out.array(), out.arrayOffset() + out.position(), length);<a name="line.917"></a>
-<span class="sourceLineNo">918</span> // Move the position in out by length<a name="line.918"></a>
-<span class="sourceLineNo">919</span> out.position(out.position() + length);<a name="line.919"></a>
-<span class="sourceLineNo">920</span> } else if (UNSAFE_AVAIL) {<a name="line.920"></a>
-<span class="sourceLineNo">921</span> UnsafeAccess.copy(in, inOffset, out, out.position(), length);<a name="line.921"></a>
-<span class="sourceLineNo">922</span> // Move the position in out by length<a name="line.922"></a>
-<span class="sourceLineNo">923</span> out.position(out.position() + length);<a name="line.923"></a>
-<span class="sourceLineNo">924</span> } else {<a name="line.924"></a>
-<span class="sourceLineNo">925</span> out.put(in, inOffset, length);<a name="line.925"></a>
-<span class="sourceLineNo">926</span> }<a name="line.926"></a>
-<span class="sourceLineNo">927</span> }<a name="line.927"></a>
-<span class="sourceLineNo">928</span><a name="line.928"></a>
-<span class="sourceLineNo">929</span> /**<a name="line.929"></a>
-<span class="sourceLineNo">930</span> * Copies specified number of bytes from given offset of 'in' ByteBuffer to<a name="line.930"></a>
-<span class="sourceLineNo">931</span> * the array.<a name="line.931"></a>
-<span class="sourceLineNo">932</span> * @param out<a name="line.932"></a>
-<span class="sourceLineNo">933</span> * @param in<a name="line.933"></a>
-<span class="sourceLineNo">934</span> * @param sourceOffset<a name="line.934"></a>
-<span class="sourceLineNo">935</span> * @param destinationOffset<a name="line.935"></a>
-<span class="sourceLineNo">936</span> * @param length<a name="line.936"></a>
-<span class="sourceLineNo">937</span> */<a name="line.937"></a>
-<span class="sourceLineNo">938</span> public static void copyFromBufferToArray(byte[] out, ByteBuffer in, int sourceOffset,<a name="line.938"></a>
-<span class="sourceLineNo">939</span> int destinationOffset, int length) {<a name="line.939"></a>
-<span class="sourceLineNo">940</span> if (in.hasArray()) {<a name="line.940"></a>
-<span class="sourceLineNo">941</span> System.arraycopy(in.array(), sourceOffset + in.arrayOffset(), out, destinationOffset, length);<a name="line.941"></a>
-<span class="sourceLineNo">942</span> } else if (UNSAFE_AVAIL) {<a name="line.942"></a>
-<span class="sourceLineNo">943</span> UnsafeAccess.copy(in, sourceOffset, out, destinationOffset, length);<a name="line.943"></a>
-<span class="sourceLineNo">944</span> } else {<a name="line.944"></a>
-<span class="sourceLineNo">945</span> int oldPos = in.position();<a name="line.945"></a>
-<span class="sourceLineNo">946</span> in.position(sourceOffset);<a name="line.946"></a>
-<span class="sourceLineNo">947</span> in.get(out, destinationOffset, length);<a name="line.947"></a>
-<span class="sourceLineNo">948</span> in.position(oldPos);<a name="line.948"></a>
-<span class="sourceLineNo">949</span> }<a name="line.949"></a>
-<span class="sourceLineNo">950</span> }<a name="line.950"></a>
-<span class="sourceLineNo">951</span><a name="line.951"></a>
-<span class="sourceLineNo">952</span> // For testing purpose<a name="line.952"></a>
-<span class="sourceLineNo">953</span> public static String toStringBinary(final ByteBuffer b, int off, int len) {<a name="line.953"></a>
-<span class="sourceLineNo">954</span> StringBuilder result = new StringBuilder();<a name="line.954"></a>
-<span class="sourceLineNo">955</span> // Just in case we are passed a 'len' that is > buffer length...<a name="line.955"></a>
-<span class="sourceLineNo">956</span> if (off >= b.capacity())<a name="line.956"></a>
-<span class="sourceLineNo">957</span> return result.toString();<a name="line.957"></a>
-<span class="sourceLineNo">958</span> if (off + len > b.capacity())<a name="line.958"></a>
-<span class="sourceLineNo">959</span> len = b.capacity() - off;<a name="line.959"></a>
-<span class="sourceLineNo">960</span> for (int i = off; i < off + len; ++i) {<a name="line.960"></a>
-<span class="sourceLineNo">961</span> int ch = b.get(i) & 0xFF;<a name="line.961"></a>
-<span class="sourceLineNo">962</span> if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')<a name="line.962"></a>
-<span class="sourceLineNo">963</span> || " `~!@#$%^&*()-_=+[]{}|;:'\",.<>/?".indexOf(ch) >= 0) {<a name="line.963"></a>
-<span class="sourceLineNo">964</span> result.append((char) ch);<a name="line.964"></a>
-<span class="sourceLineNo">965</span> } else {<a name="line.965"></a>
-<span class="sourceLineNo">966</span> result.append(String.format("\\x%02X", ch));<a name="line.966"></a>
-<span class="sourceLineNo">967</span> }<a name="line.967"></a>
-<span class="sourceLineNo">968</span> }<a name="line.968"></a>
-<span class="sourceLineNo">969</span> return result.toString();<a name="line.969"></a>
-<span class="sourceLineNo">970</span> }<a name="line.970"></a>
-<span class="sourceLineNo">971</span><a name="line.971"></a>
-<span class="sourceLineNo">972</span> public static String toStringBinary(final ByteBuffer b) {<a name="line.972"></a>
-<span class="sourceLineNo">973</span> return toStringBinary(b, 0, b.capacity());<a name="line.973"></a>
-<span class="sourceLineNo">974</span> }<a name="line.974"></a>
-<span class="sourceLineNo">975</span>}<a name="line.975"></a>
+<span class="sourceLineNo">785</span> * Reads an int value at the given buffer's current position. Also advances the buffer's position<a name="line.785"></a>
+<span class="sourceLineNo">786</span> */<a name="line.786"></a>
+<span class="sourceLineNo">787</span> public static int toInt(ByteBuffer buffer) {<a name="line.787"></a>
+<span class="sourceLineNo">788</span> if (UNSAFE_UNALIGNED) {<a name="line.788"></a>
+<span class="sourceLineNo">789</span> int i = UnsafeAccess.toInt(buffer, buffer.position());<a name="line.789"></a>
+<span class="sourceLineNo">790</span> buffer.position(buffer.position() + Bytes.SIZEOF_INT);<a name="line.790"></a>
+<span class="sourceLineNo">791</span> return i;<a name="line.791"></a>
+<span class="sourceLineNo">792</span> } else {<a name="line.792"></a>
+<span class="sourceLineNo">793</span> return buffer.getInt();<a name="line.793"></a>
+<span class="sourceLineNo">794</span> }<a name="line.794"></a>
+<span class="sourceLineNo">795</span> }<a name="line.795"></a>
+<span class="sourceLineNo">796</span><a name="line.796"></a>
+<span class="sourceLineNo">797</span> /**<a name="line.797"></a>
+<span class="sourceLineNo">798</span> * Reads an int value at the given buffer's offset.<a name="line.798"></a>
+<span class="sourceLineNo">799</span> * @param buffer<a name="line.799"></a>
+<span class="sourceLineNo">800</span> * @param offset<a name="line.800"></a>
+<span class="sourceLineNo">801</span> * @return int value at offset<a name="line.801"></a>
+<span class="sourceLineNo">802</span> */<a name="line.802"></a>
+<span class="sourceLineNo">803</span> public static int toInt(ByteBuffer buffer, int offset) {<a name="line.803"></a>
+<span class="sourceLineNo">804</span> if (UNSAFE_UNALIGNED) {<a name="line.804"></a>
+<span class="sourceLineNo">805</span> return UnsafeAccess.toInt(buffer, offset);<a name="line.805"></a>
+<span class="sourceLineNo">806</span> } else {<a name="line.806"></a>
+<span class="sourceLineNo">807</span> return buffer.getInt(offset);<a name="line.807"></a>
+<span class="sourceLineNo">808</span> }<a name="line.808"></a>
+<span class="sourceLineNo">809</span> }<a name="line.809"></a>
+<span class="sourceLineNo">810</span><a name="line.810"></a>
+<span class="sourceLineNo">811</span> /**<a name="line.811"></a>
+<span class="sourceLineNo">812</span> * Converts a ByteBuffer to an int value<a name="line.812"></a>
+<span class="sourceLineNo">813</span> *<a name="line.813"></a>
+<span class="sourceLineNo">814</span> * @param buf The ByteBuffer<a name="line.814"></a>
+<span class="sourceLineNo">815</span> * @param offset Offset to int value<a name="line.815"></a>
+<span class="sourceLineNo">816</span> * @param length Number of bytes used to store the int value.<a name="line.816"></a>
+<span class="sourceLineNo">817</span> * @return the int value<a name="line.817"></a>
+<span class="sourceLineNo">818</span> * @throws IllegalArgumentException<a name="line.818"></a>
+<span class="sourceLineNo">819</span> * if there's not enough bytes left in the buffer after the given offset<a name="line.819"></a>
+<span class="sourceLineNo">820</span> */<a name="line.820"></a>
+<span class="sourceLineNo">821</span> public static int readAsInt(ByteBuffer buf, int offset, final int length) {<a name="line.821"></a>
+<span class="sourceLineNo">822</span> if (offset + length > buf.limit()) {<a name="line.822"></a>
+<span class="sourceLineNo">823</span> throw new IllegalArgumentException("offset (" + offset + ") + length (" + length<a name="line.823"></a>
+<span class="sourceLineNo">824</span> + ") exceed the" + " limit of the buffer: " + buf.limit());<a name="line.824"></a>
+<span class="sourceLineNo">825</span> }<a name="line.825"></a>
+<span class="sourceLineNo">826</span> int n = 0;<a name="line.826"></a>
+<span class="sourceLineNo">827</span> for(int i = offset; i < (offset + length); i++) {<a name="line.827"></a>
+<span class="sourceLineNo">828</span> n <<= 8;<a name="line.828"></a>
+<span class="sourceLineNo">829</span> n ^= toByte(buf, i) & 0xFF;<a name="line.829"></a>
+<span class="sourceLineNo">830</span> }<a name="line.830"></a>
+<span class="sourceLineNo">831</span> return n;<a name="line.831"></a>
+<span class="sourceLineNo">832</span> }<a name="line.832"></a>
+<span class="sourceLineNo">833</span><a name="line.833"></a>
+<span class="sourceLineNo">834</span> /**<a name="line.834"></a>
+<span class="sourceLineNo">835</span> * Reads a long value at the given buffer's offset.<a name="line.835"></a>
+<span class="sourceLineNo">836</span> * @param buffer<a name="line.836"></a>
+<span class="sourceLineNo">837</span> * @param offset<a name="line.837"></a>
+<span class="sourceLineNo">838</span> * @return long value at offset<a name="line.838"></a>
+<span class="sourceLineNo">839</span> */<a name="line.839"></a>
+<span class="sourceLineNo">840</span> public static long toLong(ByteBuffer buffer, int offset) {<a name="line.840"></a>
+<span class="sourceLineNo">841</span> if (UNSAFE_UNALIGNED) {<a name="line.841"></a>
+<span class="sourceLineNo">842</span> return UnsafeAccess.toLong(buffer, offset);<a name="line.842"></a>
+<span class="sourceLineNo">843</span> } else {<a name="line.843"></a>
+<span class="sourceLineNo">844</span> return buffer.getLong(offset);<a name="line.844"></a>
+<span class="sourceLineNo">845</span> }<a name="line.845"></a>
+<span class="sourceLineNo">846</span> }<a name="line.846"></a>
+<span class="sourceLineNo">847</span><a name="line.847"></a>
+<span class="sourceLineNo">848</span> /**<a name="line.848"></a>
+<span class="sourceLineNo">849</span> * Put an int value out to the given ByteBuffer's current position in big-endian format.<a name="line.849"></a>
+<span class="sourceLineNo">850</span> * This also advances the position in buffer by int size.<a name="line.850"></a>
+<span class="sourceLineNo">851</span> * @param buffer the ByteBuffer to write to<a name="line.851"></a>
+<span class="sourceLineNo">852</span> * @param val int to write out<a name="line.852"></a>
+<span class="sourceLineNo">853</span> */<a name="line.853"></a>
+<span class="sourceLineNo">854</span> public static void putInt(ByteBuffer buffer, int val) {<a name="line.854"></a>
+<span class="sourceLineNo">855</span> if (UNSAFE_UNALIGNED) {<a name="line.855"></a>
+<span class="sourceLineNo">856</span> int newPos = UnsafeAccess.putInt(buffer, buffer.position(), val);<a name="line.856"></a>
+<span class="sourceLineNo">857</span> buffer.position(newPos);<a name="line.857"></a>
+<span class="sourceLineNo">858</span> } else {<a name="line.858"></a>
+<span class="sourceLineNo">859</span> buffer.putInt(val);<a name="line.859"></a>
+<span class="sourceLineNo">860</span> }<a name="line.860"></a>
+<span class="sourceLineNo">861</span> }<a name="line.861"></a>
+<span class="sourceLineNo">862</span><a name="line.862"></a>
+<span class="sourceLineNo">863</span> /**<a name="line.863"></a>
+<span class="sourceLineNo">864</span> * Reads a double value at the given buffer's offset.<a name="line.864"></a>
+<span class="sourceLineNo">865</span> * @param buffer<a name="line.865"></a>
+<span class="sourceLineNo">866</span> * @param offset offset where double is<a name="line.866"></a>
+<span class="sourceLineNo">867</span> * @return double value at offset<a name="line.867"></a>
+<span class="sourceLineNo">868</span> */<a name="line.868"></a>
+<span class="sourceLineNo">869</span> public static double toDouble(ByteBuffer buffer, int offset) {<a name="line.869"></a>
+<span class="sourceLineNo">870</span> return Double.longBitsToDouble(toLong(buffer, offset));<a name="line.870"></a>
+<span class="sourceLineNo">871</span> }<a name="line.871"></a>
+<span class="sourceLineNo">872</span><a name="line.872"></a>
+<span class="sourceLineNo">873</span> /**<a name="line.873"></a>
+<span class="sourceLineNo">874</span> * Reads a BigDecimal value at the given buffer's offset.<a name="line.874"></a>
+<span class="sourceLineNo">875</span> * @param buffer<a name="line.875"></a>
+<span class="sourceLineNo">876</span> * @param offset<a name="line.876"></a>
+<span class="sourceLineNo">877</span> * @return BigDecimal value at offset<a name="line.877"></a>
+<span class="sourceLineNo">878</span> */<a name="line.878"></a>
+<span class="sourceLineNo">879</span> public static BigDecimal toBigDecimal(ByteBuffer buffer, int offset, int length) {<a name="line.879"></a>
+<span class="sourceLineNo">880</span> if (buffer == null || length < Bytes.SIZEOF_INT + 1 ||<a name="line.880"></a>
+<span class="sourceLineNo">881</span> (offset + length > buffer.limit())) {<a name="line.881"></a>
+<span class="sourceLineNo">882</span> return null;<a name="line.882"></a>
+<span class="sourceLineNo">883</span> }<a name="line.883"></a>
+<span class="sourceLineNo">884</span><a name="line.884"></a>
+<span class="sourceLineNo">885</span> int scale = toInt(buffer, offset);<a name="line.885"></a>
+<span class="sourceLineNo">886</span> byte[] tcBytes = new byte[length - Bytes.SIZEOF_INT];<a name="line.886"></a>
+<span class="sourceLineNo">887</span> copyFromBufferToArray(tcBytes, buffer, offset + Bytes.SIZEOF_INT, 0, length - Bytes.SIZEOF_INT);<a name="line.887"></a>
+<span class="sourceLineNo">888</span> return new BigDecimal(new BigInteger(tcBytes), scale);<a name="line.888"></a>
+<span class="sourceLineNo">889</span> }<a name="line.889"></a>
+<span class="sourceLineNo">890</span><a name="line.890"></a>
+<span class="sourceLineNo">891</span> /**<a name="line.891"></a>
+<span class="sourceLineNo">892</span> * Put a short value out to the given ByteBuffer's current position in big-endian format.<a name="line.892"></a>
+<span class="sourceLineNo">893</span> * This also advances the position in buffer by short size.<a name="line.893"></a>
+<span class="sourceLineNo">894</span> * @param buffer the ByteBuffer to write to<a name="line.894"></a>
+<span class="sourceLineNo">895</span> * @param val short to write out<a name="line.895"></a>
+<span class="sourceLineNo">896</span> */<a name="line.896"></a>
+<span class="sourceLineNo">897</span> public static void putShort(ByteBuffer buffer, short val) {<a name="line.897"></a>
+<span class="sourceLineNo">898</span> if (UNSAFE_UNALIGNED) {<a name="line.898"></a>
+<span class="sourceLineNo">899</span> int newPos = UnsafeAccess.putShort(buffer, buffer.position(), val);<a name="line.899"></a>
+<span class="sourceLineNo">900</span> buffer.position(newPos);<a name="line.900"></a>
+<span class="sourceLineNo">901</span> } else {<a name="line.901"></a>
+<span class="sourceLineNo">902</span> buffer.putShort(val);<a name="line.902"></a>
+<span class="sourceLineNo">903</span> }<a name="line.903"></a>
+<span class="sourceLineNo">904</span> }<a name="line.904"></a>
+<span class="sourceLineNo">905</span><a name="line.905"></a>
+<span class="sourceLineNo">906</span> /**<a name="line.906"></a>
+<span class="sourceLineNo">907</span> * Put a long value out to the given ByteBuffer's current position in big-endian format.<a name="line.907"></a>
+<span class="sourceLineNo">908</span> * This also advances the position in buffer by long size.<a name="line.908"></a>
+<span class="sourceLineNo">909</span> * @param buffer the ByteBuffer to write to<a name="line.909"></a>
+<span class="sourceLineNo">910</span> * @param val long to write out<a name="line.910"></a>
+<span class="sourceLineNo">911</span> */<a name="line.911"></a>
+<span class="sourceLineNo">912</span> public static void putLong(ByteBuffer buffer, long val) {<a name="line.912"></a>
+<span class="sourceLineNo">913</span> if (UNSAFE_UNALIGNED) {<a name="line.913"></a>
+<span class="sourceLineNo">914</span> int newPos = UnsafeAccess.putLong(buffer, buffer.position(), val);<a name="line.914"></a>
+<span class="sourceLineNo">915</span> buffer.position(newPos);<a name="line.915"></a>
+<span class="sourceLineNo">916</span> } else {<a name="line.916"></a>
+<span class="sourceLineNo">917</span> buffer.putLong(val);<a name="line.917"></a>
+<span class="sourceLineNo">918</span> }<a name="line.918"></a>
+<span class="sourceLineNo">919</span> }<a name="line.919"></a>
+<span class="sourceLineNo">920</span> /**<a name="line.920"></a>
+<span class="sourceLineNo">921</span> * Copies the bytes from given array's offset to length part into the given buffer. Puts the bytes<a name="line.921"></a>
+<span class="sourceLineNo">922</span> * to buffer's current position. This also advances the position in the 'out' buffer by 'length'<a name="line.922"></a>
+<span class="sourceLineNo">923</span> * @param out<a name="line.923"></a>
+<span class="sourceLineNo">924</span> * @param in<a name="line.924"></a>
+<span class="sourceLineNo">925</span> * @param inOffset<a name="line.925"></a>
+<span class="sourceLineNo">926</span> * @param length<a name="line.926"></a>
+<span class="sourceLineNo">927</span> */<a name="line.927"></a>
+<span class="sourceLineNo">928</span> public static void copyFromArrayToBuffer(ByteBuffer out, byte[] in, int inOffset, int length) {<a name="line.928"></a>
+<span class="sourceLineNo">929</span> if (out.hasArray()) {<a name="line.929"></a>
+<span class="sourceLineNo">930</span> System.arraycopy(in, inOffset, out.array(), out.arrayOffset() + out.position(), length);<a name="line.930"></a>
+<span class="sourceLineNo">931</span> // Move the position in out by length<a name="line.931"></a>
+<span class="sourceLineNo">932</span> out.position(out.position() + length);<a name="line.932"></a>
+<span class="sourceLineNo">933</span> } else if (UNSAFE_AVAIL) {<a name="line.933"></a>
+<span class="sourceLineNo">934</span> UnsafeAccess.copy(in, inOffset, out, out.position(), length);<a name="line.934"></a>
+<span class="sourceLineNo">935</span> // Move the position in out by length<a name="line.935"></a>
+<span class="sourceLineNo">936</span> out.position(out.position() + length);<a name="line.936"></a>
+<span class="sourceLineNo">937</span> } else {<a name="line.937"></a>
+<span class="sourceLineNo">938</span> out.put(in, inOffset, length);<a name="line.938"></a>
+<span class="sourceLineNo">939</span> }<a name="line.939"></a>
+<span class="sourceLineNo">940</span> }<a name="line.940"></a>
+<span class="sourceLineNo">941</span><a name="line.941"></a>
+<span class="sourceLineNo">942</span> /**<a name="line.942"></a>
+<span class="sourceLineNo">943</span> * Copies specified number of bytes from given offset of 'in' ByteBuffer to<a name="line.943"></a>
+<span class="sourceLineNo">944</span> * the array.<a name="line.944"></a>
+<span class="sourceLineNo">945</span> * @param out<a name="line.945"></a>
+<span class="sourceLineNo">946</span> * @param in<a name="line.946"></a>
+<span class="sourceLineNo">947</span> * @param sourceOffset<a name="line.947"></a>
+<span class="sourceLineNo">948</span> * @param destinationOffset<a name="line.948"></a>
+<span class="sourceLineNo">949</span> * @param length<a name="line.949"></a>
+<span class="sourceLineNo">950</span> */<a name="line.950"></a>
+<span class="sourceLineNo">951</span> public static void copyFromBufferToArray(byte[] out, ByteBuffer in, int sourceOffset,<a name="line.951"></a>
+<span class="sourceLineNo">952</span> int destinationOffset, int length) {<a name="line.952"></a>
+<span class="sourceLineNo">953</span> if (in.hasArray()) {<a name="line.953"></a>
+<span class="sourceLineNo">954</span> System.arraycopy(in.array(), sourceOffset + in.arrayOffset(), out, destinationOffset, length);<a name="line.954"></a>
+<span class="sourceLineNo">955</span> } else if (UNSAFE_AVAIL) {<a name="line.955"></a>
+<span class="sourceLineNo">956</span> UnsafeAccess.copy(in, sourceOffset, out, destinationOffset, length);<a name="line.956"></a>
+<span class="sourceLineNo">957</span> } else {<a name="line.957"></a>
+<span class="sourceLineNo">958</span> int oldPos = in.position();<a name="line.958"></a>
+<span class="sourceLineNo">959</span> in.position(sourceOffset);<a name="line.959"></a>
+<span class="sourceLineNo">960</span> in.get(out, destinationOffset, length);<a name="line.960"></a>
+<span class="sourceLineNo">961</span> in.position(oldPos);<a name="line.961"></a>
+<span class="sourceLineNo">962</span> }<a name="line.962"></a>
+<span class="sourceLineNo">963</span> }<a name="line.963"></a>
+<span class="sourceLineNo">964</span><a name="line.964"></a>
+<span class="sourceLineNo">965</span> // For testing purpose<a name="line.965"></a>
+<span class="sourceLineNo">966</span> public static String toStringBinary(final ByteBuffer b, int off, int len) {<a name="line.966"></a>
+<span class="sourceLineNo">967</span> StringBuilder result = new StringBuilder();<a name="line.967"></a>
+<span class="sourceLineNo">968</span> // Just in case we are passed a 'len' that is > buffer length...<a name="line.968"></a>
+<span class="sourceLineNo">969</span> if (off >= b.capacity())<a name="line.969"></a>
+<span class="sourceLineNo">970</span> return result.toString();<a name="line.970"></a>
+<span class="sourceLineNo">971</span> if (off + len > b.capacity())<a name="line.971"></a>
+<span class="sourceLineNo">972</span> len = b.capacity() - off;<a name="line.972"></a>
+<span class="sourceLineNo">973</span> for (int i = off; i < off + len; ++i) {<a name="line.973"></a>
+<span class="sourceLineNo">974</span> int ch = b.get(i) & 0xFF;<a name="line.974"></a>
+<span class="sourceLineNo">975</span> if ((ch >= '0' && ch <= '9') || (ch >= 'A' && ch <= 'Z') || (ch >= 'a' && ch <= 'z')<a name="line.975"></a>
+<span class="sourceLineNo">976</span> || " `~!@#$%^&*()-_=+[]{}|;:'\",.<>/?".indexOf(ch) >= 0) {<a name="line.976"></a>
+<span class="sourceLineNo">977</span> result.append((char) ch);<a name="line.977"></a>
+<span class="sourceLineNo">978</span> } else {<a name="line.978"></a>
+<span class="sourceLineNo">979</span> result.append(String.format("\\x%02X", ch));<a name="line.979"></a>
+<span class="sourceLineNo">980</span> }<a name="line.980"></a>
+<span class="sourceLineNo">981</span> }<a name="line.981"></a>
+<span class="sourceLineNo">982</span> return result.toString();<a name="line.982"></a>
+<span class="sourceLineNo">983</span> }<a name="line.983"></a>
+<span class="sourceLineNo">984</span><a name="line.984"></a>
+<span class="sourceLineNo">985</span> public static String toStringBinary(final ByteBuffer b) {<a name="line.985"></a>
+<span class="sourceLineNo">986</span> return toStringBinary(b, 0, b.capacity());<a name="line.986"></a>
+<span class="sourceLineNo">987</span> }<a name="line.987"></a>
+<span class="sourceLineNo">988</span>}<a name="line.988"></a>