Repository: hbase-site Updated Branches: refs/heads/asf-site ba3ba8b2e -> c9ebe6860
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/c9ebe686/devapidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.RowTracker.html ---------------------------------------------------------------------- diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.RowTracker.html b/devapidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.RowTracker.html index 3efe1f0..3b88f1d 100644 --- a/devapidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.RowTracker.html +++ b/devapidocs/src-html/org/apache/hadoop/hbase/filter/FuzzyRowFilter.RowTracker.html @@ -43,629 +43,628 @@ <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.BytesBytesPair;<a name="line.35"></a> <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.36"></a> <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.util.Pair;<a name="line.37"></a> -<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.UnsafeAccess;<a name="line.38"></a> -<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.UnsafeAvailChecker;<a name="line.39"></a> -<span class="sourceLineNo">040</span><a name="line.40"></a> -<span class="sourceLineNo">041</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.41"></a> -<span class="sourceLineNo">042</span><a name="line.42"></a> -<span class="sourceLineNo">043</span>/**<a name="line.43"></a> -<span class="sourceLineNo">044</span> * This is optimized version of a standard FuzzyRowFilter Filters data based on fuzzy row key.<a name="line.44"></a> -<span class="sourceLineNo">045</span> * Performs fast-forwards during scanning. It takes pairs (row key, fuzzy info) to match row keys.<a name="line.45"></a> -<span class="sourceLineNo">046</span> * Where fuzzy info is a byte array with 0 or 1 as its values:<a name="line.46"></a> -<span class="sourceLineNo">047</span> * <ul><a name="line.47"></a> -<span class="sourceLineNo">048</span> * <li>0 - means that this byte in provided row key is fixed, i.e. row key's byte at same position<a name="line.48"></a> -<span class="sourceLineNo">049</span> * must match</li><a name="line.49"></a> -<span class="sourceLineNo">050</span> * <li>1 - means that this byte in provided row key is NOT fixed, i.e. row key's byte at this<a name="line.50"></a> -<span class="sourceLineNo">051</span> * position can be different from the one in provided row key</li><a name="line.51"></a> -<span class="sourceLineNo">052</span> * </ul><a name="line.52"></a> -<span class="sourceLineNo">053</span> * Example: Let's assume row key format is userId_actionId_year_month. Length of userId is fixed and<a name="line.53"></a> -<span class="sourceLineNo">054</span> * is 4, length of actionId is 2 and year and month are 4 and 2 bytes long respectively. Let's<a name="line.54"></a> -<span class="sourceLineNo">055</span> * assume that we need to fetch all users that performed certain action (encoded as "99") in Jan of<a name="line.55"></a> -<span class="sourceLineNo">056</span> * any year. Then the pair (row key, fuzzy info) would be the following: row key = "????_99_????_01"<a name="line.56"></a> -<span class="sourceLineNo">057</span> * (one can use any value instead of "?") fuzzy info =<a name="line.57"></a> -<span class="sourceLineNo">058</span> * "\x01\x01\x01\x01\x00\x00\x00\x00\x01\x01\x01\x01\x00\x00\x00" I.e. fuzzy info tells the matching<a name="line.58"></a> -<span class="sourceLineNo">059</span> * mask is "????_99_????_01", where at ? can be any value.<a name="line.59"></a> -<span class="sourceLineNo">060</span> */<a name="line.60"></a> -<span class="sourceLineNo">061</span>@InterfaceAudience.Public<a name="line.61"></a> -<span class="sourceLineNo">062</span>public class FuzzyRowFilter extends FilterBase {<a name="line.62"></a> -<span class="sourceLineNo">063</span> private static final boolean UNSAFE_UNALIGNED = UnsafeAvailChecker.unaligned();<a name="line.63"></a> -<span class="sourceLineNo">064</span> private List<Pair<byte[], byte[]>> fuzzyKeysData;<a name="line.64"></a> -<span class="sourceLineNo">065</span> private boolean done = false;<a name="line.65"></a> -<span class="sourceLineNo">066</span><a name="line.66"></a> -<span class="sourceLineNo">067</span> /**<a name="line.67"></a> -<span class="sourceLineNo">068</span> * The index of a last successfully found matching fuzzy string (in fuzzyKeysData). We will start<a name="line.68"></a> -<span class="sourceLineNo">069</span> * matching next KV with this one. If they do not match then we will return back to the one-by-one<a name="line.69"></a> -<span class="sourceLineNo">070</span> * iteration over fuzzyKeysData.<a name="line.70"></a> -<span class="sourceLineNo">071</span> */<a name="line.71"></a> -<span class="sourceLineNo">072</span> private int lastFoundIndex = -1;<a name="line.72"></a> -<span class="sourceLineNo">073</span><a name="line.73"></a> -<span class="sourceLineNo">074</span> /**<a name="line.74"></a> -<span class="sourceLineNo">075</span> * Row tracker (keeps all next rows after SEEK_NEXT_USING_HINT was returned)<a name="line.75"></a> -<span class="sourceLineNo">076</span> */<a name="line.76"></a> -<span class="sourceLineNo">077</span> private RowTracker tracker;<a name="line.77"></a> -<span class="sourceLineNo">078</span><a name="line.78"></a> -<span class="sourceLineNo">079</span> public FuzzyRowFilter(List<Pair<byte[], byte[]>> fuzzyKeysData) {<a name="line.79"></a> -<span class="sourceLineNo">080</span> List<Pair<byte[], byte[]>> fuzzyKeyDataCopy = new ArrayList<>(fuzzyKeysData.size());<a name="line.80"></a> -<span class="sourceLineNo">081</span><a name="line.81"></a> -<span class="sourceLineNo">082</span> for (Pair<byte[], byte[]> aFuzzyKeysData : fuzzyKeysData) {<a name="line.82"></a> -<span class="sourceLineNo">083</span> if (aFuzzyKeysData.getFirst().length != aFuzzyKeysData.getSecond().length) {<a name="line.83"></a> -<span class="sourceLineNo">084</span> Pair<String, String> readable =<a name="line.84"></a> -<span class="sourceLineNo">085</span> new Pair<>(Bytes.toStringBinary(aFuzzyKeysData.getFirst()), Bytes.toStringBinary(aFuzzyKeysData.getSecond()));<a name="line.85"></a> -<span class="sourceLineNo">086</span> throw new IllegalArgumentException("Fuzzy pair lengths do not match: " + readable);<a name="line.86"></a> -<span class="sourceLineNo">087</span> }<a name="line.87"></a> -<span class="sourceLineNo">088</span><a name="line.88"></a> -<span class="sourceLineNo">089</span> Pair<byte[], byte[]> p = new Pair<>();<a name="line.89"></a> -<span class="sourceLineNo">090</span> // create a copy of pair bytes so that they are not modified by the filter.<a name="line.90"></a> -<span class="sourceLineNo">091</span> p.setFirst(Arrays.copyOf(aFuzzyKeysData.getFirst(), aFuzzyKeysData.getFirst().length));<a name="line.91"></a> -<span class="sourceLineNo">092</span> p.setSecond(Arrays.copyOf(aFuzzyKeysData.getSecond(), aFuzzyKeysData.getSecond().length));<a name="line.92"></a> -<span class="sourceLineNo">093</span><a name="line.93"></a> -<span class="sourceLineNo">094</span> // update mask ( 0 -> -1 (0xff), 1 -> 2)<a name="line.94"></a> -<span class="sourceLineNo">095</span> p.setSecond(preprocessMask(p.getSecond()));<a name="line.95"></a> -<span class="sourceLineNo">096</span> preprocessSearchKey(p);<a name="line.96"></a> -<span class="sourceLineNo">097</span><a name="line.97"></a> -<span class="sourceLineNo">098</span> fuzzyKeyDataCopy.add(p);<a name="line.98"></a> -<span class="sourceLineNo">099</span> }<a name="line.99"></a> -<span class="sourceLineNo">100</span> this.fuzzyKeysData = fuzzyKeyDataCopy;<a name="line.100"></a> -<span class="sourceLineNo">101</span> this.tracker = new RowTracker();<a name="line.101"></a> -<span class="sourceLineNo">102</span> }<a name="line.102"></a> +<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.util.UnsafeAvailChecker;<a name="line.38"></a> +<span class="sourceLineNo">039</span><a name="line.39"></a> +<span class="sourceLineNo">040</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.40"></a> +<span class="sourceLineNo">041</span><a name="line.41"></a> +<span class="sourceLineNo">042</span>/**<a name="line.42"></a> +<span class="sourceLineNo">043</span> * This is optimized version of a standard FuzzyRowFilter Filters data based on fuzzy row key.<a name="line.43"></a> +<span class="sourceLineNo">044</span> * Performs fast-forwards during scanning. It takes pairs (row key, fuzzy info) to match row keys.<a name="line.44"></a> +<span class="sourceLineNo">045</span> * Where fuzzy info is a byte array with 0 or 1 as its values:<a name="line.45"></a> +<span class="sourceLineNo">046</span> * <ul><a name="line.46"></a> +<span class="sourceLineNo">047</span> * <li>0 - means that this byte in provided row key is fixed, i.e. row key's byte at same position<a name="line.47"></a> +<span class="sourceLineNo">048</span> * must match</li><a name="line.48"></a> +<span class="sourceLineNo">049</span> * <li>1 - means that this byte in provided row key is NOT fixed, i.e. row key's byte at this<a name="line.49"></a> +<span class="sourceLineNo">050</span> * position can be different from the one in provided row key</li><a name="line.50"></a> +<span class="sourceLineNo">051</span> * </ul><a name="line.51"></a> +<span class="sourceLineNo">052</span> * Example: Let's assume row key format is userId_actionId_year_month. Length of userId is fixed and<a name="line.52"></a> +<span class="sourceLineNo">053</span> * is 4, length of actionId is 2 and year and month are 4 and 2 bytes long respectively. Let's<a name="line.53"></a> +<span class="sourceLineNo">054</span> * assume that we need to fetch all users that performed certain action (encoded as "99") in Jan of<a name="line.54"></a> +<span class="sourceLineNo">055</span> * any year. Then the pair (row key, fuzzy info) would be the following: row key = "????_99_????_01"<a name="line.55"></a> +<span class="sourceLineNo">056</span> * (one can use any value instead of "?") fuzzy info =<a name="line.56"></a> +<span class="sourceLineNo">057</span> * "\x01\x01\x01\x01\x00\x00\x00\x00\x01\x01\x01\x01\x00\x00\x00" I.e. fuzzy info tells the matching<a name="line.57"></a> +<span class="sourceLineNo">058</span> * mask is "????_99_????_01", where at ? can be any value.<a name="line.58"></a> +<span class="sourceLineNo">059</span> */<a name="line.59"></a> +<span class="sourceLineNo">060</span>@InterfaceAudience.Public<a name="line.60"></a> +<span class="sourceLineNo">061</span>public class FuzzyRowFilter extends FilterBase {<a name="line.61"></a> +<span class="sourceLineNo">062</span> private static final boolean UNSAFE_UNALIGNED = UnsafeAvailChecker.unaligned();<a name="line.62"></a> +<span class="sourceLineNo">063</span> private List<Pair<byte[], byte[]>> fuzzyKeysData;<a name="line.63"></a> +<span class="sourceLineNo">064</span> private boolean done = false;<a name="line.64"></a> +<span class="sourceLineNo">065</span><a name="line.65"></a> +<span class="sourceLineNo">066</span> /**<a name="line.66"></a> +<span class="sourceLineNo">067</span> * The index of a last successfully found matching fuzzy string (in fuzzyKeysData). We will start<a name="line.67"></a> +<span class="sourceLineNo">068</span> * matching next KV with this one. If they do not match then we will return back to the one-by-one<a name="line.68"></a> +<span class="sourceLineNo">069</span> * iteration over fuzzyKeysData.<a name="line.69"></a> +<span class="sourceLineNo">070</span> */<a name="line.70"></a> +<span class="sourceLineNo">071</span> private int lastFoundIndex = -1;<a name="line.71"></a> +<span class="sourceLineNo">072</span><a name="line.72"></a> +<span class="sourceLineNo">073</span> /**<a name="line.73"></a> +<span class="sourceLineNo">074</span> * Row tracker (keeps all next rows after SEEK_NEXT_USING_HINT was returned)<a name="line.74"></a> +<span class="sourceLineNo">075</span> */<a name="line.75"></a> +<span class="sourceLineNo">076</span> private RowTracker tracker;<a name="line.76"></a> +<span class="sourceLineNo">077</span><a name="line.77"></a> +<span class="sourceLineNo">078</span> public FuzzyRowFilter(List<Pair<byte[], byte[]>> fuzzyKeysData) {<a name="line.78"></a> +<span class="sourceLineNo">079</span> List<Pair<byte[], byte[]>> fuzzyKeyDataCopy = new ArrayList<>(fuzzyKeysData.size());<a name="line.79"></a> +<span class="sourceLineNo">080</span><a name="line.80"></a> +<span class="sourceLineNo">081</span> for (Pair<byte[], byte[]> aFuzzyKeysData : fuzzyKeysData) {<a name="line.81"></a> +<span class="sourceLineNo">082</span> if (aFuzzyKeysData.getFirst().length != aFuzzyKeysData.getSecond().length) {<a name="line.82"></a> +<span class="sourceLineNo">083</span> Pair<String, String> readable =<a name="line.83"></a> +<span class="sourceLineNo">084</span> new Pair<>(Bytes.toStringBinary(aFuzzyKeysData.getFirst()), Bytes.toStringBinary(aFuzzyKeysData.getSecond()));<a name="line.84"></a> +<span class="sourceLineNo">085</span> throw new IllegalArgumentException("Fuzzy pair lengths do not match: " + readable);<a name="line.85"></a> +<span class="sourceLineNo">086</span> }<a name="line.86"></a> +<span class="sourceLineNo">087</span><a name="line.87"></a> +<span class="sourceLineNo">088</span> Pair<byte[], byte[]> p = new Pair<>();<a name="line.88"></a> +<span class="sourceLineNo">089</span> // create a copy of pair bytes so that they are not modified by the filter.<a name="line.89"></a> +<span class="sourceLineNo">090</span> p.setFirst(Arrays.copyOf(aFuzzyKeysData.getFirst(), aFuzzyKeysData.getFirst().length));<a name="line.90"></a> +<span class="sourceLineNo">091</span> p.setSecond(Arrays.copyOf(aFuzzyKeysData.getSecond(), aFuzzyKeysData.getSecond().length));<a name="line.91"></a> +<span class="sourceLineNo">092</span><a name="line.92"></a> +<span class="sourceLineNo">093</span> // update mask ( 0 -> -1 (0xff), 1 -> 2)<a name="line.93"></a> +<span class="sourceLineNo">094</span> p.setSecond(preprocessMask(p.getSecond()));<a name="line.94"></a> +<span class="sourceLineNo">095</span> preprocessSearchKey(p);<a name="line.95"></a> +<span class="sourceLineNo">096</span><a name="line.96"></a> +<span class="sourceLineNo">097</span> fuzzyKeyDataCopy.add(p);<a name="line.97"></a> +<span class="sourceLineNo">098</span> }<a name="line.98"></a> +<span class="sourceLineNo">099</span> this.fuzzyKeysData = fuzzyKeyDataCopy;<a name="line.99"></a> +<span class="sourceLineNo">100</span> this.tracker = new RowTracker();<a name="line.100"></a> +<span class="sourceLineNo">101</span> }<a name="line.101"></a> +<span class="sourceLineNo">102</span><a name="line.102"></a> <span class="sourceLineNo">103</span><a name="line.103"></a> -<span class="sourceLineNo">104</span><a name="line.104"></a> -<span class="sourceLineNo">105</span> private void preprocessSearchKey(Pair<byte[], byte[]> p) {<a name="line.105"></a> -<span class="sourceLineNo">106</span> if (!UNSAFE_UNALIGNED) {<a name="line.106"></a> -<span class="sourceLineNo">107</span> // do nothing<a name="line.107"></a> -<span class="sourceLineNo">108</span> return;<a name="line.108"></a> -<span class="sourceLineNo">109</span> }<a name="line.109"></a> -<span class="sourceLineNo">110</span> byte[] key = p.getFirst();<a name="line.110"></a> -<span class="sourceLineNo">111</span> byte[] mask = p.getSecond();<a name="line.111"></a> -<span class="sourceLineNo">112</span> for (int i = 0; i < mask.length; i++) {<a name="line.112"></a> -<span class="sourceLineNo">113</span> // set non-fixed part of a search key to 0.<a name="line.113"></a> -<span class="sourceLineNo">114</span> if (mask[i] == 2) {<a name="line.114"></a> -<span class="sourceLineNo">115</span> key[i] = 0;<a name="line.115"></a> -<span class="sourceLineNo">116</span> }<a name="line.116"></a> -<span class="sourceLineNo">117</span> }<a name="line.117"></a> -<span class="sourceLineNo">118</span> }<a name="line.118"></a> -<span class="sourceLineNo">119</span><a name="line.119"></a> -<span class="sourceLineNo">120</span> /**<a name="line.120"></a> -<span class="sourceLineNo">121</span> * We need to preprocess mask array, as since we treat 2's as unfixed positions and -1 (0xff) as<a name="line.121"></a> -<span class="sourceLineNo">122</span> * fixed positions<a name="line.122"></a> -<span class="sourceLineNo">123</span> * @param mask<a name="line.123"></a> -<span class="sourceLineNo">124</span> * @return mask array<a name="line.124"></a> -<span class="sourceLineNo">125</span> */<a name="line.125"></a> -<span class="sourceLineNo">126</span> private byte[] preprocessMask(byte[] mask) {<a name="line.126"></a> -<span class="sourceLineNo">127</span> if (!UNSAFE_UNALIGNED) {<a name="line.127"></a> -<span class="sourceLineNo">128</span> // do nothing<a name="line.128"></a> -<span class="sourceLineNo">129</span> return mask;<a name="line.129"></a> -<span class="sourceLineNo">130</span> }<a name="line.130"></a> -<span class="sourceLineNo">131</span> if (isPreprocessedMask(mask)) return mask;<a name="line.131"></a> -<span class="sourceLineNo">132</span> for (int i = 0; i < mask.length; i++) {<a name="line.132"></a> -<span class="sourceLineNo">133</span> if (mask[i] == 0) {<a name="line.133"></a> -<span class="sourceLineNo">134</span> mask[i] = -1; // 0 -> -1<a name="line.134"></a> -<span class="sourceLineNo">135</span> } else if (mask[i] == 1) {<a name="line.135"></a> -<span class="sourceLineNo">136</span> mask[i] = 2;// 1 -> 2<a name="line.136"></a> -<span class="sourceLineNo">137</span> }<a name="line.137"></a> -<span class="sourceLineNo">138</span> }<a name="line.138"></a> -<span class="sourceLineNo">139</span> return mask;<a name="line.139"></a> -<span class="sourceLineNo">140</span> }<a name="line.140"></a> -<span class="sourceLineNo">141</span><a name="line.141"></a> -<span class="sourceLineNo">142</span> private boolean isPreprocessedMask(byte[] mask) {<a name="line.142"></a> -<span class="sourceLineNo">143</span> for (int i = 0; i < mask.length; i++) {<a name="line.143"></a> -<span class="sourceLineNo">144</span> if (mask[i] != -1 && mask[i] != 2) {<a name="line.144"></a> -<span class="sourceLineNo">145</span> return false;<a name="line.145"></a> -<span class="sourceLineNo">146</span> }<a name="line.146"></a> -<span class="sourceLineNo">147</span> }<a name="line.147"></a> -<span class="sourceLineNo">148</span> return true;<a name="line.148"></a> -<span class="sourceLineNo">149</span> }<a name="line.149"></a> -<span class="sourceLineNo">150</span><a name="line.150"></a> -<span class="sourceLineNo">151</span> @Deprecated<a name="line.151"></a> -<span class="sourceLineNo">152</span> @Override<a name="line.152"></a> -<span class="sourceLineNo">153</span> public ReturnCode filterKeyValue(final Cell c) {<a name="line.153"></a> -<span class="sourceLineNo">154</span> return filterCell(c);<a name="line.154"></a> -<span class="sourceLineNo">155</span> }<a name="line.155"></a> -<span class="sourceLineNo">156</span><a name="line.156"></a> -<span class="sourceLineNo">157</span> @Override<a name="line.157"></a> -<span class="sourceLineNo">158</span> public ReturnCode filterCell(final Cell c) {<a name="line.158"></a> -<span class="sourceLineNo">159</span> final int startIndex = lastFoundIndex >= 0 ? lastFoundIndex : 0;<a name="line.159"></a> -<span class="sourceLineNo">160</span> final int size = fuzzyKeysData.size();<a name="line.160"></a> -<span class="sourceLineNo">161</span> for (int i = startIndex; i < size + startIndex; i++) {<a name="line.161"></a> -<span class="sourceLineNo">162</span> final int index = i % size;<a name="line.162"></a> -<span class="sourceLineNo">163</span> Pair<byte[], byte[]> fuzzyData = fuzzyKeysData.get(index);<a name="line.163"></a> -<span class="sourceLineNo">164</span> // This shift is idempotent - always end up with 0 and -1 as mask values.<a name="line.164"></a> -<span class="sourceLineNo">165</span> for (int j = 0; j < fuzzyData.getSecond().length; j++) {<a name="line.165"></a> -<span class="sourceLineNo">166</span> fuzzyData.getSecond()[j] >>= 2;<a name="line.166"></a> -<span class="sourceLineNo">167</span> }<a name="line.167"></a> -<span class="sourceLineNo">168</span> SatisfiesCode satisfiesCode =<a name="line.168"></a> -<span class="sourceLineNo">169</span> satisfies(isReversed(), c.getRowArray(), c.getRowOffset(), c.getRowLength(),<a name="line.169"></a> -<span class="sourceLineNo">170</span> fuzzyData.getFirst(), fuzzyData.getSecond());<a name="line.170"></a> -<span class="sourceLineNo">171</span> if (satisfiesCode == SatisfiesCode.YES) {<a name="line.171"></a> -<span class="sourceLineNo">172</span> lastFoundIndex = index;<a name="line.172"></a> -<span class="sourceLineNo">173</span> return ReturnCode.INCLUDE;<a name="line.173"></a> -<span class="sourceLineNo">174</span> }<a name="line.174"></a> -<span class="sourceLineNo">175</span> }<a name="line.175"></a> -<span class="sourceLineNo">176</span> // NOT FOUND -> seek next using hint<a name="line.176"></a> -<span class="sourceLineNo">177</span> lastFoundIndex = -1;<a name="line.177"></a> -<span class="sourceLineNo">178</span><a name="line.178"></a> -<span class="sourceLineNo">179</span> return ReturnCode.SEEK_NEXT_USING_HINT;<a name="line.179"></a> -<span class="sourceLineNo">180</span><a name="line.180"></a> -<span class="sourceLineNo">181</span> }<a name="line.181"></a> -<span class="sourceLineNo">182</span><a name="line.182"></a> -<span class="sourceLineNo">183</span> @Override<a name="line.183"></a> -<span class="sourceLineNo">184</span> public Cell getNextCellHint(Cell currentCell) {<a name="line.184"></a> -<span class="sourceLineNo">185</span> boolean result = tracker.updateTracker(currentCell);<a name="line.185"></a> -<span class="sourceLineNo">186</span> if (result == false) {<a name="line.186"></a> -<span class="sourceLineNo">187</span> done = true;<a name="line.187"></a> -<span class="sourceLineNo">188</span> return null;<a name="line.188"></a> -<span class="sourceLineNo">189</span> }<a name="line.189"></a> -<span class="sourceLineNo">190</span> byte[] nextRowKey = tracker.nextRow();<a name="line.190"></a> -<span class="sourceLineNo">191</span> return PrivateCellUtil.createFirstOnRow(nextRowKey, 0, (short) nextRowKey.length);<a name="line.191"></a> -<span class="sourceLineNo">192</span> }<a name="line.192"></a> -<span class="sourceLineNo">193</span><a name="line.193"></a> -<span class="sourceLineNo">194</span> /**<a name="line.194"></a> -<span class="sourceLineNo">195</span> * If we have multiple fuzzy keys, row tracker should improve overall performance. 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result: trimTrailingZeroes(result, fuzzyKeyMeta, toInc);<a name="line.602"></a> -<span class="sourceLineNo">603</span> }<a name="line.603"></a> -<span class="sourceLineNo">604</span><a name="line.604"></a> -<span class="sourceLineNo">605</span> /**<a name="line.605"></a> -<span class="sourceLineNo">606</span> * For forward scanner, next cell hint should not contain any trailing zeroes<a name="line.606"></a> -<span class="sourceLineNo">607</span> * unless they are part of fuzzyKeyMeta<a name="line.607"></a> -<span class="sourceLineNo">608</span> * hint = '\x01\x01\x01\x00\x00'<a name="line.608"></a> -<span class="sourceLineNo">609</span> * will skip valid row '\x01\x01\x01'<a name="line.609"></a> -<span class="sourceLineNo">610</span> * <a name="line.610"></a> -<span class="sourceLineNo">611</span> * @param result<a name="line.611"></a> -<span class="sourceLineNo">612</span> * @param fuzzyKeyMeta<a name="line.612"></a> -<span class="sourceLineNo">613</span> * @param toInc - position of incremented byte<a name="line.613"></a> -<span class="sourceLineNo">614</span> * @return trimmed version of result<a name="line.614"></a> -<span class="sourceLineNo">615</span> */<a name="line.615"></a> -<span class="sourceLineNo">616</span> <a name="line.616"></a> -<span class="sourceLineNo">617</span> private static byte[] trimTrailingZeroes(byte[] result, byte[] fuzzyKeyMeta, int toInc) {<a name="line.617"></a> -<span class="sourceLineNo">618</span> int off = fuzzyKeyMeta.length >= result.length? 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Used for testing.<a name="line.631"></a> -<span class="sourceLineNo">632</span> */<a name="line.632"></a> -<span class="sourceLineNo">633</span> @Override<a name="line.633"></a> -<span class="sourceLineNo">634</span> boolean areSerializedFieldsEqual(Filter o) {<a name="line.634"></a> -<span class="sourceLineNo">635</span> if (o == this) return true;<a name="line.635"></a> -<span class="sourceLineNo">636</span> if (!(o instanceof FuzzyRowFilter)) return false;<a name="line.636"></a> -<span class="sourceLineNo">637</span><a name="line.637"></a> -<span class="sourceLineNo">638</span> FuzzyRowFilter other = (FuzzyRowFilter) o;<a name="line.638"></a> -<span class="sourceLineNo">639</span> if (this.fuzzyKeysData.size() != other.fuzzyKeysData.size()) return false;<a name="line.639"></a> -<span class="sourceLineNo">640</span> for (int i = 0; i < fuzzyKeysData.size(); ++i) {<a name="line.640"></a> -<span class="sourceLineNo">641</span> Pair<byte[], byte[]> thisData = this.fuzzyKeysData.get(i);<a name="line.641"></a> -<span class="sourceLineNo">642</span> Pair<byte[], byte[]> otherData = other.fuzzyKeysData.get(i);<a name="line.642"></a> -<span class="sourceLineNo">643</span> if (!(Bytes.equals(thisData.getFirst(), otherData.getFirst()) && Bytes.equals(<a name="line.643"></a> -<span class="sourceLineNo">644</span> thisData.getSecond(), otherData.getSecond()))) {<a name="line.644"></a> -<span class="sourceLineNo">645</span> return false;<a name="line.645"></a> -<span class="sourceLineNo">646</span> }<a name="line.646"></a> -<span class="sourceLineNo">647</span> }<a name="line.647"></a> -<span class="sourceLineNo">648</span> return true;<a name="line.648"></a> -<span class="sourceLineNo">649</span> }<a name="line.649"></a> -<span class="sourceLineNo">650</span><a name="line.650"></a> -<span class="sourceLineNo">651</span> @Override<a name="line.651"></a> -<span class="sourceLineNo">652</span> public boolean equals(Object obj) {<a name="line.652"></a> -<span class="sourceLineNo">653</span> return obj instanceof Filter && areSerializedFieldsEqual((Filter) obj);<a name="line.653"></a> -<span class="sourceLineNo">654</span> }<a name="line.654"></a> -<span class="sourceLineNo">655</span><a name="line.655"></a> -<span class="sourceLineNo">656</span> @Override<a name="line.656"></a> -<span class="sourceLineNo">657</span> public int hashCode() {<a name="line.657"></a> -<span class="sourceLineNo">658</span> return Objects.hash(this.fuzzyKeysData);<a name="line.658"></a> -<span class="sourceLineNo">659</span> }<a name="line.659"></a> -<span class="sourceLineNo">660</span>}<a name="line.660"></a> +<span class="sourceLineNo">104</span> private void preprocessSearchKey(Pair<byte[], byte[]> p) {<a name="line.104"></a> +<span class="sourceLineNo">105</span> if (!UNSAFE_UNALIGNED) {<a name="line.105"></a> +<span class="sourceLineNo">106</span> // do nothing<a name="line.106"></a> +<span class="sourceLineNo">107</span> return;<a name="line.107"></a> +<span class="sourceLineNo">108</span> }<a name="line.108"></a> +<span class="sourceLineNo">109</span> byte[] key = p.getFirst();<a name="line.109"></a> +<span class="sourceLineNo">110</span> byte[] mask = p.getSecond();<a name="line.110"></a> +<span class="sourceLineNo">111</span> for (int i = 0; i < mask.length; i++) {<a name="line.111"></a> +<span class="sourceLineNo">112</span> // set non-fixed part of a search key to 0.<a name="line.112"></a> +<span class="sourceLineNo">113</span> if (mask[i] == 2) {<a name="line.113"></a> +<span class="sourceLineNo">114</span> key[i] = 0;<a name="line.114"></a> +<span class="sourceLineNo">115</span> }<a name="line.115"></a> +<span class="sourceLineNo">116</span> }<a name="line.116"></a> +<span class="sourceLineNo">117</span> }<a name="line.117"></a> +<span class="sourceLineNo">118</span><a name="line.118"></a> +<span class="sourceLineNo">119</span> /**<a name="line.119"></a> +<span class="sourceLineNo">120</span> * We need to preprocess mask array, as since we treat 2's as unfixed positions and -1 (0xff) as<a name="line.120"></a> +<span class="sourceLineNo">121</span> * fixed positions<a name="line.121"></a> +<span class="sourceLineNo">122</span> * @param mask<a name="line.122"></a> +<span class="sourceLineNo">123</span> * @return mask array<a name="line.123"></a> +<span class="sourceLineNo">124</span> */<a name="line.124"></a> +<span class="sourceLineNo">125</span> private byte[] preprocessMask(byte[] mask) {<a name="line.125"></a> +<span class="sourceLineNo">126</span> if (!UNSAFE_UNALIGNED) {<a name="line.126"></a> +<span class="sourceLineNo">127</span> // do nothing<a name="line.127"></a> +<span class="sourceLineNo">128</span> return mask;<a name="line.128"></a> +<span class="sourceLineNo">129</span> }<a name="line.129"></a> +<span class="sourceLineNo">130</span> if (isPreprocessedMask(mask)) return mask;<a name="line.130"></a> +<span class="sourceLineNo">131</span> for (int i = 0; i < mask.length; i++) {<a name="line.131"></a> +<span class="sourceLineNo">132</span> if (mask[i] == 0) {<a name="line.132"></a> +<span class="sourceLineNo">133</span> mask[i] = -1; // 0 -> -1<a name="line.133"></a> +<span class="sourceLineNo">134</span> } else if (mask[i] == 1) {<a name="line.134"></a> +<span class="sourceLineNo">135</span> mask[i] = 2;// 1 -> 2<a name="line.135"></a> +<span class="sourceLineNo">136</span> }<a name="line.136"></a> +<span class="sourceLineNo">137</span> }<a name="line.137"></a> +<span class="sourceLineNo">138</span> return mask;<a name="line.138"></a> +<span class="sourceLineNo">139</span> }<a name="line.139"></a> +<span class="sourceLineNo">140</span><a name="line.140"></a> +<span class="sourceLineNo">141</span> private boolean isPreprocessedMask(byte[] mask) {<a name="line.141"></a> +<span class="sourceLineNo">142</span> for (int i = 0; i < mask.length; i++) {<a name="line.142"></a> +<span class="sourceLineNo">143</span> if (mask[i] != -1 && mask[i] != 2) {<a name="line.143"></a> +<span class="sourceLineNo">144</span> return false;<a name="line.144"></a> +<span class="sourceLineNo">145</span> }<a name="line.145"></a> +<span class="sourceLineNo">146</span> }<a name="line.146"></a> +<span class="sourceLineNo">147</span> return true;<a name="line.147"></a> +<span class="sourceLineNo">148</span> }<a name="line.148"></a> +<span class="sourceLineNo">149</span><a name="line.149"></a> +<span class="sourceLineNo">150</span> @Deprecated<a name="line.150"></a> +<span class="sourceLineNo">151</span> @Override<a name="line.151"></a> +<span class="sourceLineNo">152</span> public ReturnCode filterKeyValue(final Cell c) {<a name="line.152"></a> +<span class="sourceLineNo">153</span> return filterCell(c);<a name="line.153"></a> +<span class="sourceLineNo">154</span> }<a name="line.154"></a> +<span class="sourceLineNo">155</span><a name="line.155"></a> +<span class="sourceLineNo">156</span> @Override<a name="line.156"></a> +<span class="sourceLineNo">157</span> public ReturnCode filterCell(final Cell c) {<a name="line.157"></a> +<span class="sourceLineNo">158</span> final int startIndex = lastFoundIndex >= 0 ? lastFoundIndex : 0;<a name="line.158"></a> +<span class="sourceLineNo">159</span> final int size = fuzzyKeysData.size();<a name="line.159"></a> +<span class="sourceLineNo">160</span> for (int i = startIndex; 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class="sourceLineNo">267</span> public byte[] toByteArray() {<a name="line.267"></a> +<span class="sourceLineNo">268</span> FilterProtos.FuzzyRowFilter.Builder builder = FilterProtos.FuzzyRowFilter.newBuilder();<a name="line.268"></a> +<span class="sourceLineNo">269</span> for (Pair<byte[], byte[]> fuzzyData : fuzzyKeysData) {<a name="line.269"></a> +<span class="sourceLineNo">270</span> BytesBytesPair.Builder bbpBuilder = BytesBytesPair.newBuilder();<a name="line.270"></a> +<span class="sourceLineNo">271</span> bbpBuilder.setFirst(UnsafeByteOperations.unsafeWrap(fuzzyData.getFirst()));<a name="line.271"></a> +<span class="sourceLineNo">272</span> bbpBuilder.setSecond(UnsafeByteOperations.unsafeWrap(fuzzyData.getSecond()));<a name="line.272"></a> +<span class="sourceLineNo">273</span> builder.addFuzzyKeysData(bbpBuilder);<a name="line.273"></a> +<span class="sourceLineNo">274</span> }<a name="line.274"></a> +<span class="sourceLineNo">275</span> return builder.build().toByteArray();<a name="line.275"></a> +<span class="sourceLineNo">276</span> }<a name="line.276"></a> +<span class="sourceLineNo">277</span><a name="line.277"></a> +<span class="sourceLineNo">278</span> /**<a name="line.278"></a> +<span class="sourceLineNo">279</span> * @param pbBytes A pb serialized {@link FuzzyRowFilter} instance<a name="line.279"></a> +<span class="sourceLineNo">280</span> * @return An instance of {@link FuzzyRowFilter} made from <code>bytes</code><a name="line.280"></a> +<span class="sourceLineNo">281</span> * @throws DeserializationException<a name="line.281"></a> +<span class="sourceLineNo">282</span> * @see #toByteArray<a name="line.282"></a> +<span class="sourceLineNo">283</span> */<a name="line.283"></a> +<span class="sourceLineNo">284</span> public static FuzzyRowFilter parseFrom(final byte[] pbBytes) throws DeserializationException {<a name="line.284"></a> +<span class="sourceLineNo">285</span> FilterProtos.FuzzyRowFilter proto;<a name="line.285"></a> +<span class="sourceLineNo">286</span> try {<a name="line.286"></a> +<span class="sourceLineNo">287</span> proto = FilterProtos.FuzzyRowFilter.parseFrom(pbBytes);<a name="line.287"></a> +<span class="sourceLineNo">288</span> } catch (InvalidProtocolBufferException e) {<a name="line.288"></a> +<span class="sourceLineNo">289</span> throw new DeserializationException(e);<a name="line.289"></a> +<span class="sourceLineNo">290</span> }<a name="line.290"></a> +<span class="sourceLineNo">291</span> int count = proto.getFuzzyKeysDataCount();<a name="line.291"></a> +<span class="sourceLineNo">292</span> ArrayList<Pair<byte[], byte[]>> fuzzyKeysData = new ArrayList<>(count);<a name="line.292"></a> +<span class="sourceLineNo">293</span> for (int i = 0; i < count; ++i) {<a name="line.293"></a> +<span class="sourceLineNo">294</span> BytesBytesPair current = proto.getFuzzyKeysData(i);<a name="line.294"></a> +<span class="sourceLineNo">295</span> byte[] keyBytes = current.getFirst().toByteArray();<a name="line.295"></a> +<span class="sourceLineNo">296</span> byte[] keyMeta = current.getSecond().toByteArray();<a name="line.296"></a> +<span class="sourceLineNo">297</span> fuzzyKeysData.add(new Pair<>(keyBytes, keyMeta));<a name="line.297"></a> +<span class="sourceLineNo">298</span> }<a name="line.298"></a> +<span class="sourceLineNo">299</span> return new FuzzyRowFilter(fuzzyKeysData);<a name="line.299"></a> +<span class="sourceLineNo">300</span> }<a name="line.300"></a> +<span class="sourceLineNo">301</span><a name="line.301"></a> +<span class="sourceLineNo">302</span> @Override<a name="line.302"></a> +<span class="sourceLineNo">303</span> public String toString() {<a name="line.303"></a> +<span class="sourceLineNo">304</span> final StringBuilder sb = new StringBuilder();<a name="line.304"></a> +<span class="sourceLineNo">305</span> sb.append("FuzzyRowFilter");<a name="line.305"></a> +<span class="sourceLineNo">306</span> sb.append("{fuzzyKeysData=");<a name="line.306"></a> +<span class="sourceLineNo">307</span> for (Pair<byte[], byte[]> fuzzyData : fuzzyKeysData) {<a name="line.307"></a> +<span class="sourceLineNo">308</span> sb.append('{').append(Bytes.toStringBinary(fuzzyData.getFirst())).append(":");<a name="line.308"></a> +<span class="sourceLineNo">309</span> sb.append(Bytes.toStringBinary(fuzzyData.getSecond())).append('}');<a name="line.309"></a> +<span class="sourceLineNo">310</span> }<a name="line.310"></a> +<span class="sourceLineNo">311</span> sb.append("}, ");<a name="line.311"></a> +<span class="sourceLineNo">312</span> return sb.toString();<a name="line.312"></a> +<span class="sourceLineNo">313</span> }<a name="line.313"></a> +<span class="sourceLineNo">314</span><a name="line.314"></a> +<span class="sourceLineNo">315</span> // Utility methods<a name="line.315"></a> +<span class="sourceLineNo">316</span><a name="line.316"></a> +<span class="sourceLineNo">317</span> static enum SatisfiesCode {<a name="l <TRUNCATED>