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From mi...@apache.org
Subject [01/30] hbase-site git commit: Updated 0.94 docs to 0f35a32ab123ee299f4aaaea02b4ba2d2b43cff2
Date Wed, 16 Dec 2015 16:59:47 GMT
Repository: hbase-site
Updated Branches:
  refs/heads/asf-site 539ad1779 -> ecb8d8ba0


http://git-wip-us.apache.org/repos/asf/hbase-site/blob/ecb8d8ba/0.94/xref/org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.html
----------------------------------------------------------------------
diff --git a/0.94/xref/org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.html b/0.94/xref/org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.html
index 0007f84..fb4d583 100644
--- a/0.94/xref/org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.html
+++ b/0.94/xref/org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.html
@@ -36,174 +36,177 @@
 <a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong>
org.apache.hadoop.hbase.util.Bytes;
 <a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong>
org.apache.hadoop.io.RawComparator;
 <a class="jxr_linenumber" name="28" href="#28">28</a>  
-<a class="jxr_linenumber" name="29" href="#29">29</a>  <em class="jxr_javadoccomment">/**</em>
-<a class="jxr_linenumber" name="30" href="#30">30</a>  <em class="jxr_javadoccomment">
* Compress key by storing size of common prefix with previous KeyValue</em>
-<a class="jxr_linenumber" name="31" href="#31">31</a>  <em class="jxr_javadoccomment">
* and storing raw size of rest.</em>
-<a class="jxr_linenumber" name="32" href="#32">32</a>  <em class="jxr_javadoccomment">
*</em>
-<a class="jxr_linenumber" name="33" href="#33">33</a>  <em class="jxr_javadoccomment">
* Format:</em>
-<a class="jxr_linenumber" name="34" href="#34">34</a>  <em class="jxr_javadoccomment">
* 1-5 bytes: compressed key length minus prefix (7-bit encoding)</em>
-<a class="jxr_linenumber" name="35" href="#35">35</a>  <em class="jxr_javadoccomment">
* 1-5 bytes: compressed value length (7-bit encoding)</em>
-<a class="jxr_linenumber" name="36" href="#36">36</a>  <em class="jxr_javadoccomment">
* 1-3 bytes: compressed length of common key prefix</em>
-<a class="jxr_linenumber" name="37" href="#37">37</a>  <em class="jxr_javadoccomment">
* ... bytes: rest of key (including timestamp)</em>
-<a class="jxr_linenumber" name="38" href="#38">38</a>  <em class="jxr_javadoccomment">
* ... bytes: value</em>
-<a class="jxr_linenumber" name="39" href="#39">39</a>  <em class="jxr_javadoccomment">
*</em>
-<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment">
* In a worst case compressed KeyValue will be three bytes longer than original.</em>
+<a class="jxr_linenumber" name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong>
org.apache.hadoop.classification.InterfaceAudience;
+<a class="jxr_linenumber" name="30" href="#30">30</a>  
+<a class="jxr_linenumber" name="31" href="#31">31</a>  <em class="jxr_javadoccomment">/**</em>
+<a class="jxr_linenumber" name="32" href="#32">32</a>  <em class="jxr_javadoccomment">
* Compress key by storing size of common prefix with previous KeyValue</em>
+<a class="jxr_linenumber" name="33" href="#33">33</a>  <em class="jxr_javadoccomment">
* and storing raw size of rest.</em>
+<a class="jxr_linenumber" name="34" href="#34">34</a>  <em class="jxr_javadoccomment">
*</em>
+<a class="jxr_linenumber" name="35" href="#35">35</a>  <em class="jxr_javadoccomment">
* Format:</em>
+<a class="jxr_linenumber" name="36" href="#36">36</a>  <em class="jxr_javadoccomment">
* 1-5 bytes: compressed key length minus prefix (7-bit encoding)</em>
+<a class="jxr_linenumber" name="37" href="#37">37</a>  <em class="jxr_javadoccomment">
* 1-5 bytes: compressed value length (7-bit encoding)</em>
+<a class="jxr_linenumber" name="38" href="#38">38</a>  <em class="jxr_javadoccomment">
* 1-3 bytes: compressed length of common key prefix</em>
+<a class="jxr_linenumber" name="39" href="#39">39</a>  <em class="jxr_javadoccomment">
* ... bytes: rest of key (including timestamp)</em>
+<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment">
* ... bytes: value</em>
 <a class="jxr_linenumber" name="41" href="#41">41</a>  <em class="jxr_javadoccomment">
*</em>
-<a class="jxr_linenumber" name="42" href="#42">42</a>  <em class="jxr_javadoccomment">
*/</em>
-<a class="jxr_linenumber" name="43" href="#43">43</a>  <strong class="jxr_keyword">public</strong>
<strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.html">PrefixKeyDeltaEncoder</a>
<strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/BufferedDataBlockEncoder.html">BufferedDataBlockEncoder</a>
{
-<a class="jxr_linenumber" name="44" href="#44">44</a>  
-<a class="jxr_linenumber" name="45" href="#45">45</a>    <strong class="jxr_keyword">private</strong>
<strong class="jxr_keyword">int</strong> addKV(<strong class="jxr_keyword">int</strong>
prevKeyOffset, DataOutputStream out,
-<a class="jxr_linenumber" name="46" href="#46">46</a>        ByteBuffer in, <strong
class="jxr_keyword">int</strong> prevKeyLength) <strong class="jxr_keyword">throws</strong>
IOException {
-<a class="jxr_linenumber" name="47" href="#47">47</a>      <strong class="jxr_keyword">int</strong>
keyLength = in.getInt();
-<a class="jxr_linenumber" name="48" href="#48">48</a>      <strong class="jxr_keyword">int</strong>
valueLength = in.getInt();
-<a class="jxr_linenumber" name="49" href="#49">49</a>  
-<a class="jxr_linenumber" name="50" href="#50">50</a>      <strong class="jxr_keyword">if</strong>
(prevKeyOffset == -1) {
-<a class="jxr_linenumber" name="51" href="#51">51</a>        <em class="jxr_comment">//
copy the key, there is no common prefix with none</em>
-<a class="jxr_linenumber" name="52" href="#52">52</a>        ByteBufferUtils.putCompressedInt(out,
keyLength);
-<a class="jxr_linenumber" name="53" href="#53">53</a>        ByteBufferUtils.putCompressedInt(out,
valueLength);
-<a class="jxr_linenumber" name="54" href="#54">54</a>        ByteBufferUtils.putCompressedInt(out,
0);
-<a class="jxr_linenumber" name="55" href="#55">55</a>        ByteBufferUtils.moveBufferToStream(out,
in, keyLength + valueLength);
-<a class="jxr_linenumber" name="56" href="#56">56</a>      } <strong class="jxr_keyword">else</strong>
{
-<a class="jxr_linenumber" name="57" href="#57">57</a>        <em class="jxr_comment">//
find a common prefix and skip it</em>
-<a class="jxr_linenumber" name="58" href="#58">58</a>        <strong class="jxr_keyword">int</strong>
common = ByteBufferUtils.findCommonPrefix(
-<a class="jxr_linenumber" name="59" href="#59">59</a>            in, prevKeyOffset
+ KeyValue.ROW_OFFSET,
-<a class="jxr_linenumber" name="60" href="#60">60</a>            in.position(),
-<a class="jxr_linenumber" name="61" href="#61">61</a>            Math.min(prevKeyLength,
keyLength));
-<a class="jxr_linenumber" name="62" href="#62">62</a>  
-<a class="jxr_linenumber" name="63" href="#63">63</a>        ByteBufferUtils.putCompressedInt(out,
keyLength - common);
-<a class="jxr_linenumber" name="64" href="#64">64</a>        ByteBufferUtils.putCompressedInt(out,
valueLength);
-<a class="jxr_linenumber" name="65" href="#65">65</a>        ByteBufferUtils.putCompressedInt(out,
common);
-<a class="jxr_linenumber" name="66" href="#66">66</a>  
-<a class="jxr_linenumber" name="67" href="#67">67</a>        ByteBufferUtils.skip(in,
common);
-<a class="jxr_linenumber" name="68" href="#68">68</a>        ByteBufferUtils.moveBufferToStream(out,
in, keyLength - common
-<a class="jxr_linenumber" name="69" href="#69">69</a>            + valueLength);
-<a class="jxr_linenumber" name="70" href="#70">70</a>      }
-<a class="jxr_linenumber" name="71" href="#71">71</a>  
-<a class="jxr_linenumber" name="72" href="#72">72</a>      <strong class="jxr_keyword">return</strong>
keyLength;
-<a class="jxr_linenumber" name="73" href="#73">73</a>    }
+<a class="jxr_linenumber" name="42" href="#42">42</a>  <em class="jxr_javadoccomment">
* In a worst case compressed KeyValue will be three bytes longer than original.</em>
+<a class="jxr_linenumber" name="43" href="#43">43</a>  <em class="jxr_javadoccomment">
*</em>
+<a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment">
*/</em>
+<a class="jxr_linenumber" name="45" href="#45">45</a>  @InterfaceAudience.Private
+<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">public</strong>
<strong class="jxr_keyword">class</strong> <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/PrefixKeyDeltaEncoder.html">PrefixKeyDeltaEncoder</a>
<strong class="jxr_keyword">extends</strong> <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/BufferedDataBlockEncoder.html">BufferedDataBlockEncoder</a>
{
+<a class="jxr_linenumber" name="47" href="#47">47</a>  
+<a class="jxr_linenumber" name="48" href="#48">48</a>    <strong class="jxr_keyword">private</strong>
<strong class="jxr_keyword">int</strong> addKV(<strong class="jxr_keyword">int</strong>
prevKeyOffset, DataOutputStream out,
+<a class="jxr_linenumber" name="49" href="#49">49</a>        ByteBuffer in, <strong
class="jxr_keyword">int</strong> prevKeyLength) <strong class="jxr_keyword">throws</strong>
IOException {
+<a class="jxr_linenumber" name="50" href="#50">50</a>      <strong class="jxr_keyword">int</strong>
keyLength = in.getInt();
+<a class="jxr_linenumber" name="51" href="#51">51</a>      <strong class="jxr_keyword">int</strong>
valueLength = in.getInt();
+<a class="jxr_linenumber" name="52" href="#52">52</a>  
+<a class="jxr_linenumber" name="53" href="#53">53</a>      <strong class="jxr_keyword">if</strong>
(prevKeyOffset == -1) {
+<a class="jxr_linenumber" name="54" href="#54">54</a>        <em class="jxr_comment">//
copy the key, there is no common prefix with none</em>
+<a class="jxr_linenumber" name="55" href="#55">55</a>        ByteBufferUtils.putCompressedInt(out,
keyLength);
+<a class="jxr_linenumber" name="56" href="#56">56</a>        ByteBufferUtils.putCompressedInt(out,
valueLength);
+<a class="jxr_linenumber" name="57" href="#57">57</a>        ByteBufferUtils.putCompressedInt(out,
0);
+<a class="jxr_linenumber" name="58" href="#58">58</a>        ByteBufferUtils.moveBufferToStream(out,
in, keyLength + valueLength);
+<a class="jxr_linenumber" name="59" href="#59">59</a>      } <strong class="jxr_keyword">else</strong>
{
+<a class="jxr_linenumber" name="60" href="#60">60</a>        <em class="jxr_comment">//
find a common prefix and skip it</em>
+<a class="jxr_linenumber" name="61" href="#61">61</a>        <strong class="jxr_keyword">int</strong>
common = ByteBufferUtils.findCommonPrefix(
+<a class="jxr_linenumber" name="62" href="#62">62</a>            in, prevKeyOffset
+ KeyValue.ROW_OFFSET,
+<a class="jxr_linenumber" name="63" href="#63">63</a>            in.position(),
+<a class="jxr_linenumber" name="64" href="#64">64</a>            Math.min(prevKeyLength,
keyLength));
+<a class="jxr_linenumber" name="65" href="#65">65</a>  
+<a class="jxr_linenumber" name="66" href="#66">66</a>        ByteBufferUtils.putCompressedInt(out,
keyLength - common);
+<a class="jxr_linenumber" name="67" href="#67">67</a>        ByteBufferUtils.putCompressedInt(out,
valueLength);
+<a class="jxr_linenumber" name="68" href="#68">68</a>        ByteBufferUtils.putCompressedInt(out,
common);
+<a class="jxr_linenumber" name="69" href="#69">69</a>  
+<a class="jxr_linenumber" name="70" href="#70">70</a>        ByteBufferUtils.skip(in,
common);
+<a class="jxr_linenumber" name="71" href="#71">71</a>        ByteBufferUtils.moveBufferToStream(out,
in, keyLength - common
+<a class="jxr_linenumber" name="72" href="#72">72</a>            + valueLength);
+<a class="jxr_linenumber" name="73" href="#73">73</a>      }
 <a class="jxr_linenumber" name="74" href="#74">74</a>  
-<a class="jxr_linenumber" name="75" href="#75">75</a>    @Override
-<a class="jxr_linenumber" name="76" href="#76">76</a>    <strong class="jxr_keyword">public</strong>
<strong class="jxr_keyword">void</strong> compressKeyValues(DataOutputStream writeHere,
-<a class="jxr_linenumber" name="77" href="#77">77</a>        ByteBuffer in, <strong
class="jxr_keyword">boolean</strong> includesMemstoreTS) <strong class="jxr_keyword">throws</strong>
IOException {
-<a class="jxr_linenumber" name="78" href="#78">78</a>      in.rewind();
-<a class="jxr_linenumber" name="79" href="#79">79</a>      ByteBufferUtils.putInt(writeHere,
in.limit());
-<a class="jxr_linenumber" name="80" href="#80">80</a>      <strong class="jxr_keyword">int</strong>
prevOffset = -1;
-<a class="jxr_linenumber" name="81" href="#81">81</a>      <strong class="jxr_keyword">int</strong>
offset = 0;
-<a class="jxr_linenumber" name="82" href="#82">82</a>      <strong class="jxr_keyword">int</strong>
keyLength = 0;
-<a class="jxr_linenumber" name="83" href="#83">83</a>      <strong class="jxr_keyword">while</strong>
(in.hasRemaining()) {
-<a class="jxr_linenumber" name="84" href="#84">84</a>        offset = in.position();
-<a class="jxr_linenumber" name="85" href="#85">85</a>        keyLength = addKV(prevOffset,
writeHere, in, keyLength);
-<a class="jxr_linenumber" name="86" href="#86">86</a>        afterEncodingKeyValue(in,
writeHere, includesMemstoreTS);
-<a class="jxr_linenumber" name="87" href="#87">87</a>        prevOffset = offset;
-<a class="jxr_linenumber" name="88" href="#88">88</a>      }
-<a class="jxr_linenumber" name="89" href="#89">89</a>    }
-<a class="jxr_linenumber" name="90" href="#90">90</a>  
-<a class="jxr_linenumber" name="91" href="#91">91</a>    @Override
-<a class="jxr_linenumber" name="92" href="#92">92</a>    <strong class="jxr_keyword">public</strong>
ByteBuffer uncompressKeyValues(DataInputStream source,
-<a class="jxr_linenumber" name="93" href="#93">93</a>        <strong class="jxr_keyword">int</strong>
allocHeaderLength, <strong class="jxr_keyword">int</strong> skipLastBytes, <strong
class="jxr_keyword">boolean</strong> includesMemstoreTS)
-<a class="jxr_linenumber" name="94" href="#94">94</a>            <strong class="jxr_keyword">throws</strong>
IOException {
-<a class="jxr_linenumber" name="95" href="#95">95</a>      <strong class="jxr_keyword">int</strong>
decompressedSize = source.readInt();
-<a class="jxr_linenumber" name="96" href="#96">96</a>      ByteBuffer buffer
= ByteBuffer.allocate(decompressedSize +
-<a class="jxr_linenumber" name="97" href="#97">97</a>          allocHeaderLength);
-<a class="jxr_linenumber" name="98" href="#98">98</a>      buffer.position(allocHeaderLength);
-<a class="jxr_linenumber" name="99" href="#99">99</a>      <strong class="jxr_keyword">int</strong>
prevKeyOffset = 0;
-<a class="jxr_linenumber" name="100" href="#100">100</a> 
-<a class="jxr_linenumber" name="101" href="#101">101</a>     <strong class="jxr_keyword">while</strong>
(source.available() &gt; skipLastBytes) {
-<a class="jxr_linenumber" name="102" href="#102">102</a>       prevKeyOffset
= uncompressKeyValue(source, buffer, prevKeyOffset);
-<a class="jxr_linenumber" name="103" href="#103">103</a>       afterDecodingKeyValue(source,
buffer, includesMemstoreTS);
-<a class="jxr_linenumber" name="104" href="#104">104</a>     }
-<a class="jxr_linenumber" name="105" href="#105">105</a> 
-<a class="jxr_linenumber" name="106" href="#106">106</a>     <strong class="jxr_keyword">if</strong>
(source.available() != skipLastBytes) {
-<a class="jxr_linenumber" name="107" href="#107">107</a>       <strong class="jxr_keyword">throw</strong>
<strong class="jxr_keyword">new</strong> IllegalStateException(<span class="jxr_string">"Read
too many bytes."</span>);
-<a class="jxr_linenumber" name="108" href="#108">108</a>     }
-<a class="jxr_linenumber" name="109" href="#109">109</a> 
-<a class="jxr_linenumber" name="110" href="#110">110</a>     buffer.limit(buffer.position());
-<a class="jxr_linenumber" name="111" href="#111">111</a>     <strong class="jxr_keyword">return</strong>
buffer;
-<a class="jxr_linenumber" name="112" href="#112">112</a>   }
-<a class="jxr_linenumber" name="113" href="#113">113</a> 
-<a class="jxr_linenumber" name="114" href="#114">114</a>   <strong class="jxr_keyword">private</strong>
<strong class="jxr_keyword">int</strong> uncompressKeyValue(DataInputStream source,
ByteBuffer buffer,
-<a class="jxr_linenumber" name="115" href="#115">115</a>       <strong class="jxr_keyword">int</strong>
prevKeyOffset)
-<a class="jxr_linenumber" name="116" href="#116">116</a>           <strong
class="jxr_keyword">throws</strong> IOException, <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/EncoderBufferTooSmallException.html">EncoderBufferTooSmallException</a>
{
-<a class="jxr_linenumber" name="117" href="#117">117</a>     <strong class="jxr_keyword">int</strong>
keyLength = ByteBufferUtils.readCompressedInt(source);
-<a class="jxr_linenumber" name="118" href="#118">118</a>     <strong class="jxr_keyword">int</strong>
valueLength = ByteBufferUtils.readCompressedInt(source);
-<a class="jxr_linenumber" name="119" href="#119">119</a>     <strong class="jxr_keyword">int</strong>
commonLength = ByteBufferUtils.readCompressedInt(source);
-<a class="jxr_linenumber" name="120" href="#120">120</a>     <strong class="jxr_keyword">int</strong>
keyOffset;
-<a class="jxr_linenumber" name="121" href="#121">121</a>     keyLength += commonLength;
-<a class="jxr_linenumber" name="122" href="#122">122</a> 
-<a class="jxr_linenumber" name="123" href="#123">123</a>     ByteBufferUtils.ensureSpace(buffer,
keyLength + valueLength
-<a class="jxr_linenumber" name="124" href="#124">124</a>         + KeyValue.ROW_OFFSET);
+<a class="jxr_linenumber" name="75" href="#75">75</a>      <strong class="jxr_keyword">return</strong>
keyLength;
+<a class="jxr_linenumber" name="76" href="#76">76</a>    }
+<a class="jxr_linenumber" name="77" href="#77">77</a>  
+<a class="jxr_linenumber" name="78" href="#78">78</a>    @Override
+<a class="jxr_linenumber" name="79" href="#79">79</a>    <strong class="jxr_keyword">public</strong>
<strong class="jxr_keyword">void</strong> compressKeyValues(DataOutputStream writeHere,
+<a class="jxr_linenumber" name="80" href="#80">80</a>        ByteBuffer in, <strong
class="jxr_keyword">boolean</strong> includesMemstoreTS) <strong class="jxr_keyword">throws</strong>
IOException {
+<a class="jxr_linenumber" name="81" href="#81">81</a>      in.rewind();
+<a class="jxr_linenumber" name="82" href="#82">82</a>      ByteBufferUtils.putInt(writeHere,
in.limit());
+<a class="jxr_linenumber" name="83" href="#83">83</a>      <strong class="jxr_keyword">int</strong>
prevOffset = -1;
+<a class="jxr_linenumber" name="84" href="#84">84</a>      <strong class="jxr_keyword">int</strong>
offset = 0;
+<a class="jxr_linenumber" name="85" href="#85">85</a>      <strong class="jxr_keyword">int</strong>
keyLength = 0;
+<a class="jxr_linenumber" name="86" href="#86">86</a>      <strong class="jxr_keyword">while</strong>
(in.hasRemaining()) {
+<a class="jxr_linenumber" name="87" href="#87">87</a>        offset = in.position();
+<a class="jxr_linenumber" name="88" href="#88">88</a>        keyLength = addKV(prevOffset,
writeHere, in, keyLength);
+<a class="jxr_linenumber" name="89" href="#89">89</a>        afterEncodingKeyValue(in,
writeHere, includesMemstoreTS);
+<a class="jxr_linenumber" name="90" href="#90">90</a>        prevOffset = offset;
+<a class="jxr_linenumber" name="91" href="#91">91</a>      }
+<a class="jxr_linenumber" name="92" href="#92">92</a>    }
+<a class="jxr_linenumber" name="93" href="#93">93</a>  
+<a class="jxr_linenumber" name="94" href="#94">94</a>    @Override
+<a class="jxr_linenumber" name="95" href="#95">95</a>    <strong class="jxr_keyword">public</strong>
ByteBuffer uncompressKeyValues(DataInputStream source,
+<a class="jxr_linenumber" name="96" href="#96">96</a>        <strong class="jxr_keyword">int</strong>
allocHeaderLength, <strong class="jxr_keyword">int</strong> skipLastBytes, <strong
class="jxr_keyword">boolean</strong> includesMemstoreTS)
+<a class="jxr_linenumber" name="97" href="#97">97</a>            <strong class="jxr_keyword">throws</strong>
IOException {
+<a class="jxr_linenumber" name="98" href="#98">98</a>      <strong class="jxr_keyword">int</strong>
decompressedSize = source.readInt();
+<a class="jxr_linenumber" name="99" href="#99">99</a>      ByteBuffer buffer
= ByteBuffer.allocate(decompressedSize +
+<a class="jxr_linenumber" name="100" href="#100">100</a>         allocHeaderLength);
+<a class="jxr_linenumber" name="101" href="#101">101</a>     buffer.position(allocHeaderLength);
+<a class="jxr_linenumber" name="102" href="#102">102</a>     <strong class="jxr_keyword">int</strong>
prevKeyOffset = 0;
+<a class="jxr_linenumber" name="103" href="#103">103</a> 
+<a class="jxr_linenumber" name="104" href="#104">104</a>     <strong class="jxr_keyword">while</strong>
(source.available() &gt; skipLastBytes) {
+<a class="jxr_linenumber" name="105" href="#105">105</a>       prevKeyOffset
= uncompressKeyValue(source, buffer, prevKeyOffset);
+<a class="jxr_linenumber" name="106" href="#106">106</a>       afterDecodingKeyValue(source,
buffer, includesMemstoreTS);
+<a class="jxr_linenumber" name="107" href="#107">107</a>     }
+<a class="jxr_linenumber" name="108" href="#108">108</a> 
+<a class="jxr_linenumber" name="109" href="#109">109</a>     <strong class="jxr_keyword">if</strong>
(source.available() != skipLastBytes) {
+<a class="jxr_linenumber" name="110" href="#110">110</a>       <strong class="jxr_keyword">throw</strong>
<strong class="jxr_keyword">new</strong> IllegalStateException(<span class="jxr_string">"Read
too many bytes."</span>);
+<a class="jxr_linenumber" name="111" href="#111">111</a>     }
+<a class="jxr_linenumber" name="112" href="#112">112</a> 
+<a class="jxr_linenumber" name="113" href="#113">113</a>     buffer.limit(buffer.position());
+<a class="jxr_linenumber" name="114" href="#114">114</a>     <strong class="jxr_keyword">return</strong>
buffer;
+<a class="jxr_linenumber" name="115" href="#115">115</a>   }
+<a class="jxr_linenumber" name="116" href="#116">116</a> 
+<a class="jxr_linenumber" name="117" href="#117">117</a>   <strong class="jxr_keyword">private</strong>
<strong class="jxr_keyword">int</strong> uncompressKeyValue(DataInputStream source,
ByteBuffer buffer,
+<a class="jxr_linenumber" name="118" href="#118">118</a>       <strong class="jxr_keyword">int</strong>
prevKeyOffset)
+<a class="jxr_linenumber" name="119" href="#119">119</a>           <strong
class="jxr_keyword">throws</strong> IOException, <a href="../../../../../../org/apache/hadoop/hbase/io/encoding/EncoderBufferTooSmallException.html">EncoderBufferTooSmallException</a>
{
+<a class="jxr_linenumber" name="120" href="#120">120</a>     <strong class="jxr_keyword">int</strong>
keyLength = ByteBufferUtils.readCompressedInt(source);
+<a class="jxr_linenumber" name="121" href="#121">121</a>     <strong class="jxr_keyword">int</strong>
valueLength = ByteBufferUtils.readCompressedInt(source);
+<a class="jxr_linenumber" name="122" href="#122">122</a>     <strong class="jxr_keyword">int</strong>
commonLength = ByteBufferUtils.readCompressedInt(source);
+<a class="jxr_linenumber" name="123" href="#123">123</a>     <strong class="jxr_keyword">int</strong>
keyOffset;
+<a class="jxr_linenumber" name="124" href="#124">124</a>     keyLength += commonLength;
 <a class="jxr_linenumber" name="125" href="#125">125</a> 
-<a class="jxr_linenumber" name="126" href="#126">126</a>     buffer.putInt(keyLength);
-<a class="jxr_linenumber" name="127" href="#127">127</a>     buffer.putInt(valueLength);
+<a class="jxr_linenumber" name="126" href="#126">126</a>     ByteBufferUtils.ensureSpace(buffer,
keyLength + valueLength
+<a class="jxr_linenumber" name="127" href="#127">127</a>         + KeyValue.ROW_OFFSET);
 <a class="jxr_linenumber" name="128" href="#128">128</a> 
-<a class="jxr_linenumber" name="129" href="#129">129</a>     <em class="jxr_comment">//
copy the prefix</em>
-<a class="jxr_linenumber" name="130" href="#130">130</a>     <strong class="jxr_keyword">if</strong>
(commonLength &gt; 0) {
-<a class="jxr_linenumber" name="131" href="#131">131</a>       keyOffset = buffer.position();
-<a class="jxr_linenumber" name="132" href="#132">132</a>       ByteBufferUtils.copyFromBufferToBuffer(buffer,
buffer, prevKeyOffset,
-<a class="jxr_linenumber" name="133" href="#133">133</a>           commonLength);
-<a class="jxr_linenumber" name="134" href="#134">134</a>     } <strong class="jxr_keyword">else</strong>
{
-<a class="jxr_linenumber" name="135" href="#135">135</a>       keyOffset = buffer.position();
-<a class="jxr_linenumber" name="136" href="#136">136</a>     }
-<a class="jxr_linenumber" name="137" href="#137">137</a> 
-<a class="jxr_linenumber" name="138" href="#138">138</a>     <em class="jxr_comment">//
copy rest of the key and value</em>
-<a class="jxr_linenumber" name="139" href="#139">139</a>     <strong class="jxr_keyword">int</strong>
len = keyLength - commonLength + valueLength;
-<a class="jxr_linenumber" name="140" href="#140">140</a>     ByteBufferUtils.copyFromStreamToBuffer(buffer,
source, len);
-<a class="jxr_linenumber" name="141" href="#141">141</a>     <strong class="jxr_keyword">return</strong>
keyOffset;
-<a class="jxr_linenumber" name="142" href="#142">142</a>   }
-<a class="jxr_linenumber" name="143" href="#143">143</a> 
-<a class="jxr_linenumber" name="144" href="#144">144</a>   @Override
-<a class="jxr_linenumber" name="145" href="#145">145</a>   <strong class="jxr_keyword">public</strong>
ByteBuffer getFirstKeyInBlock(ByteBuffer block) {
-<a class="jxr_linenumber" name="146" href="#146">146</a>     block.mark();
-<a class="jxr_linenumber" name="147" href="#147">147</a>     block.position(Bytes.SIZEOF_INT);
-<a class="jxr_linenumber" name="148" href="#148">148</a>     <strong class="jxr_keyword">int</strong>
keyLength = ByteBufferUtils.readCompressedInt(block);
-<a class="jxr_linenumber" name="149" href="#149">149</a>     ByteBufferUtils.readCompressedInt(block);
-<a class="jxr_linenumber" name="150" href="#150">150</a>     <strong class="jxr_keyword">int</strong>
commonLength = ByteBufferUtils.readCompressedInt(block);
-<a class="jxr_linenumber" name="151" href="#151">151</a>     <strong class="jxr_keyword">if</strong>
(commonLength != 0) {
-<a class="jxr_linenumber" name="152" href="#152">152</a>       <strong class="jxr_keyword">throw</strong>
<strong class="jxr_keyword">new</strong> AssertionError(<span class="jxr_string">"Nonzero
common length in the first key in "</span>
-<a class="jxr_linenumber" name="153" href="#153">153</a>           + <span
class="jxr_string">"block: "</span> + commonLength);
-<a class="jxr_linenumber" name="154" href="#154">154</a>     }
-<a class="jxr_linenumber" name="155" href="#155">155</a>     <strong class="jxr_keyword">int</strong>
pos = block.position();
-<a class="jxr_linenumber" name="156" href="#156">156</a>     block.reset();
-<a class="jxr_linenumber" name="157" href="#157">157</a>     <strong class="jxr_keyword">return</strong>
ByteBuffer.wrap(block.array(), block.arrayOffset() + pos, keyLength).slice();
-<a class="jxr_linenumber" name="158" href="#158">158</a>   }
-<a class="jxr_linenumber" name="159" href="#159">159</a> 
-<a class="jxr_linenumber" name="160" href="#160">160</a>   @Override
-<a class="jxr_linenumber" name="161" href="#161">161</a>   <strong class="jxr_keyword">public</strong>
String toString() {
-<a class="jxr_linenumber" name="162" href="#162">162</a>     <strong class="jxr_keyword">return</strong>
PrefixKeyDeltaEncoder.<strong class="jxr_keyword">class</strong>.getSimpleName();
-<a class="jxr_linenumber" name="163" href="#163">163</a>   }
-<a class="jxr_linenumber" name="164" href="#164">164</a> 
-<a class="jxr_linenumber" name="165" href="#165">165</a>   @Override
-<a class="jxr_linenumber" name="166" href="#166">166</a>   <strong class="jxr_keyword">public</strong>
<a href="../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html">EncodedSeeker</a>
createSeeker(RawComparator&lt;byte[]&gt; comparator,
-<a class="jxr_linenumber" name="167" href="#167">167</a>       <strong class="jxr_keyword">final</strong>
<strong class="jxr_keyword">boolean</strong> includesMemstoreTS) {
-<a class="jxr_linenumber" name="168" href="#168">168</a>     <strong class="jxr_keyword">return</strong>
<strong class="jxr_keyword">new</strong> BufferedEncodedSeeker&lt;SeekerState&gt;(comparator)
{
-<a class="jxr_linenumber" name="169" href="#169">169</a>       @Override
-<a class="jxr_linenumber" name="170" href="#170">170</a>       <strong class="jxr_keyword">protected</strong>
<strong class="jxr_keyword">void</strong> decodeNext() {
-<a class="jxr_linenumber" name="171" href="#171">171</a>         current.keyLength
= ByteBufferUtils.readCompressedInt(currentBuffer);
-<a class="jxr_linenumber" name="172" href="#172">172</a>         current.valueLength
= ByteBufferUtils.readCompressedInt(currentBuffer);
-<a class="jxr_linenumber" name="173" href="#173">173</a>         current.lastCommonPrefix
=
-<a class="jxr_linenumber" name="174" href="#174">174</a>             ByteBufferUtils.readCompressedInt(currentBuffer);
-<a class="jxr_linenumber" name="175" href="#175">175</a>         current.keyLength
+= current.lastCommonPrefix;
-<a class="jxr_linenumber" name="176" href="#176">176</a>         current.ensureSpaceForKey();
-<a class="jxr_linenumber" name="177" href="#177">177</a>         currentBuffer.get(current.keyBuffer,
current.lastCommonPrefix,
-<a class="jxr_linenumber" name="178" href="#178">178</a>             current.keyLength
- current.lastCommonPrefix);
-<a class="jxr_linenumber" name="179" href="#179">179</a>         current.valueOffset
= currentBuffer.position();
-<a class="jxr_linenumber" name="180" href="#180">180</a>         ByteBufferUtils.skip(currentBuffer,
current.valueLength);
-<a class="jxr_linenumber" name="181" href="#181">181</a>         <strong class="jxr_keyword">if</strong>
(includesMemstoreTS) {
-<a class="jxr_linenumber" name="182" href="#182">182</a>           current.memstoreTS
= ByteBufferUtils.readVLong(currentBuffer);
-<a class="jxr_linenumber" name="183" href="#183">183</a>         } <strong
class="jxr_keyword">else</strong> {
-<a class="jxr_linenumber" name="184" href="#184">184</a>           current.memstoreTS
= 0;
-<a class="jxr_linenumber" name="185" href="#185">185</a>         }
-<a class="jxr_linenumber" name="186" href="#186">186</a>         current.nextKvOffset
= currentBuffer.position();
-<a class="jxr_linenumber" name="187" href="#187">187</a>       }
-<a class="jxr_linenumber" name="188" href="#188">188</a> 
-<a class="jxr_linenumber" name="189" href="#189">189</a>       @Override
-<a class="jxr_linenumber" name="190" href="#190">190</a>       <strong class="jxr_keyword">protected</strong>
<strong class="jxr_keyword">void</strong> decodeFirst() {
-<a class="jxr_linenumber" name="191" href="#191">191</a>         ByteBufferUtils.skip(currentBuffer,
Bytes.SIZEOF_INT);
-<a class="jxr_linenumber" name="192" href="#192">192</a>         decodeNext();
-<a class="jxr_linenumber" name="193" href="#193">193</a>       }
-<a class="jxr_linenumber" name="194" href="#194">194</a>     };
-<a class="jxr_linenumber" name="195" href="#195">195</a>   }
-<a class="jxr_linenumber" name="196" href="#196">196</a> }
+<a class="jxr_linenumber" name="129" href="#129">129</a>     buffer.putInt(keyLength);
+<a class="jxr_linenumber" name="130" href="#130">130</a>     buffer.putInt(valueLength);
+<a class="jxr_linenumber" name="131" href="#131">131</a> 
+<a class="jxr_linenumber" name="132" href="#132">132</a>     <em class="jxr_comment">//
copy the prefix</em>
+<a class="jxr_linenumber" name="133" href="#133">133</a>     <strong class="jxr_keyword">if</strong>
(commonLength &gt; 0) {
+<a class="jxr_linenumber" name="134" href="#134">134</a>       keyOffset = buffer.position();
+<a class="jxr_linenumber" name="135" href="#135">135</a>       ByteBufferUtils.copyFromBufferToBuffer(buffer,
buffer, prevKeyOffset,
+<a class="jxr_linenumber" name="136" href="#136">136</a>           commonLength);
+<a class="jxr_linenumber" name="137" href="#137">137</a>     } <strong class="jxr_keyword">else</strong>
{
+<a class="jxr_linenumber" name="138" href="#138">138</a>       keyOffset = buffer.position();
+<a class="jxr_linenumber" name="139" href="#139">139</a>     }
+<a class="jxr_linenumber" name="140" href="#140">140</a> 
+<a class="jxr_linenumber" name="141" href="#141">141</a>     <em class="jxr_comment">//
copy rest of the key and value</em>
+<a class="jxr_linenumber" name="142" href="#142">142</a>     <strong class="jxr_keyword">int</strong>
len = keyLength - commonLength + valueLength;
+<a class="jxr_linenumber" name="143" href="#143">143</a>     ByteBufferUtils.copyFromStreamToBuffer(buffer,
source, len);
+<a class="jxr_linenumber" name="144" href="#144">144</a>     <strong class="jxr_keyword">return</strong>
keyOffset;
+<a class="jxr_linenumber" name="145" href="#145">145</a>   }
+<a class="jxr_linenumber" name="146" href="#146">146</a> 
+<a class="jxr_linenumber" name="147" href="#147">147</a>   @Override
+<a class="jxr_linenumber" name="148" href="#148">148</a>   <strong class="jxr_keyword">public</strong>
ByteBuffer getFirstKeyInBlock(ByteBuffer block) {
+<a class="jxr_linenumber" name="149" href="#149">149</a>     block.mark();
+<a class="jxr_linenumber" name="150" href="#150">150</a>     block.position(Bytes.SIZEOF_INT);
+<a class="jxr_linenumber" name="151" href="#151">151</a>     <strong class="jxr_keyword">int</strong>
keyLength = ByteBufferUtils.readCompressedInt(block);
+<a class="jxr_linenumber" name="152" href="#152">152</a>     ByteBufferUtils.readCompressedInt(block);
+<a class="jxr_linenumber" name="153" href="#153">153</a>     <strong class="jxr_keyword">int</strong>
commonLength = ByteBufferUtils.readCompressedInt(block);
+<a class="jxr_linenumber" name="154" href="#154">154</a>     <strong class="jxr_keyword">if</strong>
(commonLength != 0) {
+<a class="jxr_linenumber" name="155" href="#155">155</a>       <strong class="jxr_keyword">throw</strong>
<strong class="jxr_keyword">new</strong> AssertionError(<span class="jxr_string">"Nonzero
common length in the first key in "</span>
+<a class="jxr_linenumber" name="156" href="#156">156</a>           + <span
class="jxr_string">"block: "</span> + commonLength);
+<a class="jxr_linenumber" name="157" href="#157">157</a>     }
+<a class="jxr_linenumber" name="158" href="#158">158</a>     <strong class="jxr_keyword">int</strong>
pos = block.position();
+<a class="jxr_linenumber" name="159" href="#159">159</a>     block.reset();
+<a class="jxr_linenumber" name="160" href="#160">160</a>     <strong class="jxr_keyword">return</strong>
ByteBuffer.wrap(block.array(), block.arrayOffset() + pos, keyLength).slice();
+<a class="jxr_linenumber" name="161" href="#161">161</a>   }
+<a class="jxr_linenumber" name="162" href="#162">162</a> 
+<a class="jxr_linenumber" name="163" href="#163">163</a>   @Override
+<a class="jxr_linenumber" name="164" href="#164">164</a>   <strong class="jxr_keyword">public</strong>
String toString() {
+<a class="jxr_linenumber" name="165" href="#165">165</a>     <strong class="jxr_keyword">return</strong>
PrefixKeyDeltaEncoder.<strong class="jxr_keyword">class</strong>.getSimpleName();
+<a class="jxr_linenumber" name="166" href="#166">166</a>   }
+<a class="jxr_linenumber" name="167" href="#167">167</a> 
+<a class="jxr_linenumber" name="168" href="#168">168</a>   @Override
+<a class="jxr_linenumber" name="169" href="#169">169</a>   <strong class="jxr_keyword">public</strong>
<a href="../../../../../../org/apache/hadoop/hbase/io/encoding/DataBlockEncoder.html">EncodedSeeker</a>
createSeeker(RawComparator&lt;byte[]&gt; comparator,
+<a class="jxr_linenumber" name="170" href="#170">170</a>       <strong class="jxr_keyword">final</strong>
<strong class="jxr_keyword">boolean</strong> includesMemstoreTS) {
+<a class="jxr_linenumber" name="171" href="#171">171</a>     <strong class="jxr_keyword">return</strong>
<strong class="jxr_keyword">new</strong> BufferedEncodedSeeker&lt;SeekerState&gt;(comparator)
{
+<a class="jxr_linenumber" name="172" href="#172">172</a>       @Override
+<a class="jxr_linenumber" name="173" href="#173">173</a>       <strong class="jxr_keyword">protected</strong>
<strong class="jxr_keyword">void</strong> decodeNext() {
+<a class="jxr_linenumber" name="174" href="#174">174</a>         current.keyLength
= ByteBufferUtils.readCompressedInt(currentBuffer);
+<a class="jxr_linenumber" name="175" href="#175">175</a>         current.valueLength
= ByteBufferUtils.readCompressedInt(currentBuffer);
+<a class="jxr_linenumber" name="176" href="#176">176</a>         current.lastCommonPrefix
=
+<a class="jxr_linenumber" name="177" href="#177">177</a>             ByteBufferUtils.readCompressedInt(currentBuffer);
+<a class="jxr_linenumber" name="178" href="#178">178</a>         current.keyLength
+= current.lastCommonPrefix;
+<a class="jxr_linenumber" name="179" href="#179">179</a>         current.ensureSpaceForKey();
+<a class="jxr_linenumber" name="180" href="#180">180</a>         currentBuffer.get(current.keyBuffer,
current.lastCommonPrefix,
+<a class="jxr_linenumber" name="181" href="#181">181</a>             current.keyLength
- current.lastCommonPrefix);
+<a class="jxr_linenumber" name="182" href="#182">182</a>         current.valueOffset
= currentBuffer.position();
+<a class="jxr_linenumber" name="183" href="#183">183</a>         ByteBufferUtils.skip(currentBuffer,
current.valueLength);
+<a class="jxr_linenumber" name="184" href="#184">184</a>         <strong class="jxr_keyword">if</strong>
(includesMemstoreTS) {
+<a class="jxr_linenumber" name="185" href="#185">185</a>           current.memstoreTS
= ByteBufferUtils.readVLong(currentBuffer);
+<a class="jxr_linenumber" name="186" href="#186">186</a>         } <strong
class="jxr_keyword">else</strong> {
+<a class="jxr_linenumber" name="187" href="#187">187</a>           current.memstoreTS
= 0;
+<a class="jxr_linenumber" name="188" href="#188">188</a>         }
+<a class="jxr_linenumber" name="189" href="#189">189</a>         current.nextKvOffset
= currentBuffer.position();
+<a class="jxr_linenumber" name="190" href="#190">190</a>       }
+<a class="jxr_linenumber" name="191" href="#191">191</a> 
+<a class="jxr_linenumber" name="192" href="#192">192</a>       @Override
+<a class="jxr_linenumber" name="193" href="#193">193</a>       <strong class="jxr_keyword">protected</strong>
<strong class="jxr_keyword">void</strong> decodeFirst() {
+<a class="jxr_linenumber" name="194" href="#194">194</a>         ByteBufferUtils.skip(currentBuffer,
Bytes.SIZEOF_INT);
+<a class="jxr_linenumber" name="195" href="#195">195</a>         decodeNext();
+<a class="jxr_linenumber" name="196" href="#196">196</a>       }
+<a class="jxr_linenumber" name="197" href="#197">197</a>     };
+<a class="jxr_linenumber" name="198" href="#198">198</a>   }
+<a class="jxr_linenumber" name="199" href="#199">199</a> }
 </pre>
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