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 2015/11/25 00:19:51 UTC
[23/34] hbase git commit: Published site at
0bae444b34b6be3a28b5ccc036afb5add23818c6.
http://git-wip-us.apache.org/repos/asf/hbase/blob/8acdc839/devapidocs/src-html/org/apache/hadoop/hbase/filter/FirstKeyValueMatchingQualifiersFilter.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/filter/FirstKeyValueMatchingQualifiersFilter.html b/devapidocs/src-html/org/apache/hadoop/hbase/filter/FirstKeyValueMatchingQualifiersFilter.html
index fb1aeb6..93471d1 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/filter/FirstKeyValueMatchingQualifiersFilter.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/filter/FirstKeyValueMatchingQualifiersFilter.html
@@ -51,89 +51,91 @@
<span class="sourceLineNo">043</span> * caveat, this filter is only useful for special cases<a name="line.43"></a>
<span class="sourceLineNo">044</span> * like {@link org.apache.hadoop.hbase.mapreduce.RowCounter}.<a name="line.44"></a>
<span class="sourceLineNo">045</span> * <p><a name="line.45"></a>
-<span class="sourceLineNo">046</span> */<a name="line.46"></a>
-<span class="sourceLineNo">047</span>@InterfaceAudience.Public<a name="line.47"></a>
-<span class="sourceLineNo">048</span>@InterfaceStability.Stable<a name="line.48"></a>
-<span class="sourceLineNo">049</span>public class FirstKeyValueMatchingQualifiersFilter extends FirstKeyOnlyFilter {<a name="line.49"></a>
-<span class="sourceLineNo">050</span><a name="line.50"></a>
-<span class="sourceLineNo">051</span> private Set<byte []> qualifiers;<a name="line.51"></a>
+<span class="sourceLineNo">046</span> * @deprecated Deprecated in 2.0. See HBASE-13347<a name="line.46"></a>
+<span class="sourceLineNo">047</span> */<a name="line.47"></a>
+<span class="sourceLineNo">048</span>@InterfaceAudience.Public<a name="line.48"></a>
+<span class="sourceLineNo">049</span>@InterfaceStability.Stable<a name="line.49"></a>
+<span class="sourceLineNo">050</span>@Deprecated<a name="line.50"></a>
+<span class="sourceLineNo">051</span>public class FirstKeyValueMatchingQualifiersFilter extends FirstKeyOnlyFilter {<a name="line.51"></a>
<span class="sourceLineNo">052</span><a name="line.52"></a>
-<span class="sourceLineNo">053</span> /**<a name="line.53"></a>
-<span class="sourceLineNo">054</span> * Constructor which takes a set of columns. As soon as first KeyValue<a name="line.54"></a>
-<span class="sourceLineNo">055</span> * matching any of these columns is found, filter moves to next row.<a name="line.55"></a>
-<span class="sourceLineNo">056</span> * <a name="line.56"></a>
-<span class="sourceLineNo">057</span> * @param qualifiers the set of columns to me matched.<a name="line.57"></a>
-<span class="sourceLineNo">058</span> */<a name="line.58"></a>
-<span class="sourceLineNo">059</span> public FirstKeyValueMatchingQualifiersFilter(Set<byte []> qualifiers) {<a name="line.59"></a>
-<span class="sourceLineNo">060</span> this.qualifiers = qualifiers;<a name="line.60"></a>
-<span class="sourceLineNo">061</span> }<a name="line.61"></a>
-<span class="sourceLineNo">062</span><a name="line.62"></a>
-<span class="sourceLineNo">063</span> @Override<a name="line.63"></a>
-<span class="sourceLineNo">064</span> public ReturnCode filterKeyValue(Cell v) {<a name="line.64"></a>
-<span class="sourceLineNo">065</span> if (hasFoundKV()) {<a name="line.65"></a>
-<span class="sourceLineNo">066</span> return ReturnCode.NEXT_ROW;<a name="line.66"></a>
-<span class="sourceLineNo">067</span> } else if (hasOneMatchingQualifier(v)) {<a name="line.67"></a>
-<span class="sourceLineNo">068</span> setFoundKV(true);<a name="line.68"></a>
-<span class="sourceLineNo">069</span> }<a name="line.69"></a>
-<span class="sourceLineNo">070</span> return ReturnCode.INCLUDE;<a name="line.70"></a>
-<span class="sourceLineNo">071</span> }<a name="line.71"></a>
-<span class="sourceLineNo">072</span><a name="line.72"></a>
-<span class="sourceLineNo">073</span> private boolean hasOneMatchingQualifier(Cell v) {<a name="line.73"></a>
-<span class="sourceLineNo">074</span> for (byte[] q : qualifiers) {<a name="line.74"></a>
-<span class="sourceLineNo">075</span> if (CellUtil.matchingQualifier(v, q)) {<a name="line.75"></a>
-<span class="sourceLineNo">076</span> return true;<a name="line.76"></a>
-<span class="sourceLineNo">077</span> }<a name="line.77"></a>
-<span class="sourceLineNo">078</span> }<a name="line.78"></a>
-<span class="sourceLineNo">079</span> return false;<a name="line.79"></a>
-<span class="sourceLineNo">080</span> }<a name="line.80"></a>
-<span class="sourceLineNo">081</span><a name="line.81"></a>
-<span class="sourceLineNo">082</span> /**<a name="line.82"></a>
-<span class="sourceLineNo">083</span> * @return The filter serialized using pb<a name="line.83"></a>
-<span class="sourceLineNo">084</span> */<a name="line.84"></a>
-<span class="sourceLineNo">085</span> public byte [] toByteArray() {<a name="line.85"></a>
-<span class="sourceLineNo">086</span> FilterProtos.FirstKeyValueMatchingQualifiersFilter.Builder builder =<a name="line.86"></a>
-<span class="sourceLineNo">087</span> FilterProtos.FirstKeyValueMatchingQualifiersFilter.newBuilder();<a name="line.87"></a>
-<span class="sourceLineNo">088</span> for (byte[] qualifier : qualifiers) {<a name="line.88"></a>
-<span class="sourceLineNo">089</span> if (qualifier != null) builder.addQualifiers(ByteStringer.wrap(qualifier));<a name="line.89"></a>
-<span class="sourceLineNo">090</span> }<a name="line.90"></a>
-<span class="sourceLineNo">091</span> return builder.build().toByteArray();<a name="line.91"></a>
-<span class="sourceLineNo">092</span> }<a name="line.92"></a>
-<span class="sourceLineNo">093</span><a name="line.93"></a>
-<span class="sourceLineNo">094</span> /**<a name="line.94"></a>
-<span class="sourceLineNo">095</span> * @param pbBytes A pb serialized {@link FirstKeyValueMatchingQualifiersFilter} instance<a name="line.95"></a>
-<span class="sourceLineNo">096</span> * @return An instance of {@link FirstKeyValueMatchingQualifiersFilter} made from <code>bytes</code><a name="line.96"></a>
-<span class="sourceLineNo">097</span> * @throws DeserializationException<a name="line.97"></a>
-<span class="sourceLineNo">098</span> * @see #toByteArray<a name="line.98"></a>
-<span class="sourceLineNo">099</span> */<a name="line.99"></a>
-<span class="sourceLineNo">100</span> public static FirstKeyValueMatchingQualifiersFilter parseFrom(final byte [] pbBytes)<a name="line.100"></a>
-<span class="sourceLineNo">101</span> throws DeserializationException {<a name="line.101"></a>
-<span class="sourceLineNo">102</span> FilterProtos.FirstKeyValueMatchingQualifiersFilter proto;<a name="line.102"></a>
-<span class="sourceLineNo">103</span> try {<a name="line.103"></a>
-<span class="sourceLineNo">104</span> proto = FilterProtos.FirstKeyValueMatchingQualifiersFilter.parseFrom(pbBytes);<a name="line.104"></a>
-<span class="sourceLineNo">105</span> } catch (InvalidProtocolBufferException e) {<a name="line.105"></a>
-<span class="sourceLineNo">106</span> throw new DeserializationException(e);<a name="line.106"></a>
-<span class="sourceLineNo">107</span> }<a name="line.107"></a>
-<span class="sourceLineNo">108</span><a name="line.108"></a>
-<span class="sourceLineNo">109</span> TreeSet<byte []> qualifiers = new TreeSet<byte []>(Bytes.BYTES_COMPARATOR);<a name="line.109"></a>
-<span class="sourceLineNo">110</span> for (ByteString qualifier : proto.getQualifiersList()) {<a name="line.110"></a>
-<span class="sourceLineNo">111</span> qualifiers.add(qualifier.toByteArray());<a name="line.111"></a>
-<span class="sourceLineNo">112</span> }<a name="line.112"></a>
-<span class="sourceLineNo">113</span> return new FirstKeyValueMatchingQualifiersFilter(qualifiers);<a name="line.113"></a>
-<span class="sourceLineNo">114</span> }<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> * @param other<a name="line.117"></a>
-<span class="sourceLineNo">118</span> * @return true if and only if the fields of the filter that are serialized<a name="line.118"></a>
-<span class="sourceLineNo">119</span> * are equal to the corresponding fields in other. Used for testing.<a name="line.119"></a>
-<span class="sourceLineNo">120</span> */<a name="line.120"></a>
-<span class="sourceLineNo">121</span> boolean areSerializedFieldsEqual(Filter o) {<a name="line.121"></a>
-<span class="sourceLineNo">122</span> if (o == this) return true;<a name="line.122"></a>
-<span class="sourceLineNo">123</span> if (!(o instanceof FirstKeyValueMatchingQualifiersFilter)) return false;<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span> FirstKeyValueMatchingQualifiersFilter other = (FirstKeyValueMatchingQualifiersFilter)o;<a name="line.125"></a>
-<span class="sourceLineNo">126</span> return this.qualifiers.equals(other.qualifiers);<a name="line.126"></a>
-<span class="sourceLineNo">127</span> }<a name="line.127"></a>
-<span class="sourceLineNo">128</span>}<a name="line.128"></a>
+<span class="sourceLineNo">053</span> private Set<byte []> qualifiers;<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span> /**<a name="line.55"></a>
+<span class="sourceLineNo">056</span> * Constructor which takes a set of columns. As soon as first KeyValue<a name="line.56"></a>
+<span class="sourceLineNo">057</span> * matching any of these columns is found, filter moves to next row.<a name="line.57"></a>
+<span class="sourceLineNo">058</span> * <a name="line.58"></a>
+<span class="sourceLineNo">059</span> * @param qualifiers the set of columns to me matched.<a name="line.59"></a>
+<span class="sourceLineNo">060</span> */<a name="line.60"></a>
+<span class="sourceLineNo">061</span> public FirstKeyValueMatchingQualifiersFilter(Set<byte []> qualifiers) {<a name="line.61"></a>
+<span class="sourceLineNo">062</span> this.qualifiers = qualifiers;<a name="line.62"></a>
+<span class="sourceLineNo">063</span> }<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span> @Override<a name="line.65"></a>
+<span class="sourceLineNo">066</span> public ReturnCode filterKeyValue(Cell v) {<a name="line.66"></a>
+<span class="sourceLineNo">067</span> if (hasFoundKV()) {<a name="line.67"></a>
+<span class="sourceLineNo">068</span> return ReturnCode.NEXT_ROW;<a name="line.68"></a>
+<span class="sourceLineNo">069</span> } else if (hasOneMatchingQualifier(v)) {<a name="line.69"></a>
+<span class="sourceLineNo">070</span> setFoundKV(true);<a name="line.70"></a>
+<span class="sourceLineNo">071</span> }<a name="line.71"></a>
+<span class="sourceLineNo">072</span> return ReturnCode.INCLUDE;<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> private boolean hasOneMatchingQualifier(Cell v) {<a name="line.75"></a>
+<span class="sourceLineNo">076</span> for (byte[] q : qualifiers) {<a name="line.76"></a>
+<span class="sourceLineNo">077</span> if (CellUtil.matchingQualifier(v, q)) {<a name="line.77"></a>
+<span class="sourceLineNo">078</span> return true;<a name="line.78"></a>
+<span class="sourceLineNo">079</span> }<a name="line.79"></a>
+<span class="sourceLineNo">080</span> }<a name="line.80"></a>
+<span class="sourceLineNo">081</span> return false;<a name="line.81"></a>
+<span class="sourceLineNo">082</span> }<a name="line.82"></a>
+<span class="sourceLineNo">083</span><a name="line.83"></a>
+<span class="sourceLineNo">084</span> /**<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * @return The filter serialized using pb<a name="line.85"></a>
+<span class="sourceLineNo">086</span> */<a name="line.86"></a>
+<span class="sourceLineNo">087</span> public byte [] toByteArray() {<a name="line.87"></a>
+<span class="sourceLineNo">088</span> FilterProtos.FirstKeyValueMatchingQualifiersFilter.Builder builder =<a name="line.88"></a>
+<span class="sourceLineNo">089</span> FilterProtos.FirstKeyValueMatchingQualifiersFilter.newBuilder();<a name="line.89"></a>
+<span class="sourceLineNo">090</span> for (byte[] qualifier : qualifiers) {<a name="line.90"></a>
+<span class="sourceLineNo">091</span> if (qualifier != null) builder.addQualifiers(ByteStringer.wrap(qualifier));<a name="line.91"></a>
+<span class="sourceLineNo">092</span> }<a name="line.92"></a>
+<span class="sourceLineNo">093</span> return builder.build().toByteArray();<a name="line.93"></a>
+<span class="sourceLineNo">094</span> }<a name="line.94"></a>
+<span class="sourceLineNo">095</span><a name="line.95"></a>
+<span class="sourceLineNo">096</span> /**<a name="line.96"></a>
+<span class="sourceLineNo">097</span> * @param pbBytes A pb serialized {@link FirstKeyValueMatchingQualifiersFilter} instance<a name="line.97"></a>
+<span class="sourceLineNo">098</span> * @return An instance of {@link FirstKeyValueMatchingQualifiersFilter} made from <code>bytes</code><a name="line.98"></a>
+<span class="sourceLineNo">099</span> * @throws DeserializationException<a name="line.99"></a>
+<span class="sourceLineNo">100</span> * @see #toByteArray<a name="line.100"></a>
+<span class="sourceLineNo">101</span> */<a name="line.101"></a>
+<span class="sourceLineNo">102</span> public static FirstKeyValueMatchingQualifiersFilter parseFrom(final byte [] pbBytes)<a name="line.102"></a>
+<span class="sourceLineNo">103</span> throws DeserializationException {<a name="line.103"></a>
+<span class="sourceLineNo">104</span> FilterProtos.FirstKeyValueMatchingQualifiersFilter proto;<a name="line.104"></a>
+<span class="sourceLineNo">105</span> try {<a name="line.105"></a>
+<span class="sourceLineNo">106</span> proto = FilterProtos.FirstKeyValueMatchingQualifiersFilter.parseFrom(pbBytes);<a name="line.106"></a>
+<span class="sourceLineNo">107</span> } catch (InvalidProtocolBufferException e) {<a name="line.107"></a>
+<span class="sourceLineNo">108</span> throw new DeserializationException(e);<a name="line.108"></a>
+<span class="sourceLineNo">109</span> }<a name="line.109"></a>
+<span class="sourceLineNo">110</span><a name="line.110"></a>
+<span class="sourceLineNo">111</span> TreeSet<byte []> qualifiers = new TreeSet<byte []>(Bytes.BYTES_COMPARATOR);<a name="line.111"></a>
+<span class="sourceLineNo">112</span> for (ByteString qualifier : proto.getQualifiersList()) {<a name="line.112"></a>
+<span class="sourceLineNo">113</span> qualifiers.add(qualifier.toByteArray());<a name="line.113"></a>
+<span class="sourceLineNo">114</span> }<a name="line.114"></a>
+<span class="sourceLineNo">115</span> return new FirstKeyValueMatchingQualifiersFilter(qualifiers);<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> * @param other<a name="line.119"></a>
+<span class="sourceLineNo">120</span> * @return true if and only if the fields of the filter that are serialized<a name="line.120"></a>
+<span class="sourceLineNo">121</span> * are equal to the corresponding fields in other. Used for testing.<a name="line.121"></a>
+<span class="sourceLineNo">122</span> */<a name="line.122"></a>
+<span class="sourceLineNo">123</span> boolean areSerializedFieldsEqual(Filter o) {<a name="line.123"></a>
+<span class="sourceLineNo">124</span> if (o == this) return true;<a name="line.124"></a>
+<span class="sourceLineNo">125</span> if (!(o instanceof FirstKeyValueMatchingQualifiersFilter)) return false;<a name="line.125"></a>
+<span class="sourceLineNo">126</span><a name="line.126"></a>
+<span class="sourceLineNo">127</span> FirstKeyValueMatchingQualifiersFilter other = (FirstKeyValueMatchingQualifiersFilter)o;<a name="line.127"></a>
+<span class="sourceLineNo">128</span> return this.qualifiers.equals(other.qualifiers);<a name="line.128"></a>
+<span class="sourceLineNo">129</span> }<a name="line.129"></a>
+<span class="sourceLineNo">130</span>}<a name="line.130"></a>
http://git-wip-us.apache.org/repos/asf/hbase/blob/8acdc839/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/RowCounter.RowCounterMapper.Counters.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/RowCounter.RowCounterMapper.Counters.html b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/RowCounter.RowCounterMapper.Counters.html
index 3b8f5d2..571c70a 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/RowCounter.RowCounterMapper.Counters.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/RowCounter.RowCounterMapper.Counters.html
@@ -27,228 +27,217 @@
<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.mapreduce;<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.util.Set;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import java.util.TreeSet;<a name="line.23"></a>
-<span class="sourceLineNo">024</span><a name="line.24"></a>
-<span class="sourceLineNo">025</span>import org.apache.commons.logging.Log;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.commons.logging.LogFactory;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.commons.lang.StringUtils;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HConstants;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.30"></a>
-<span class="sourceLineNo">031</span>import org.apache.hadoop.conf.Configuration;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hadoop.conf.Configured;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.client.Result;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.filter.FirstKeyOnlyFilter;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.filter.FirstKeyValueMatchingQualifiersFilter;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hadoop.mapreduce.Counter;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.apache.hadoop.mapreduce.Job;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.util.Tool;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.util.ToolRunner;<a name="line.44"></a>
-<span class="sourceLineNo">045</span><a name="line.45"></a>
-<span class="sourceLineNo">046</span>/**<a name="line.46"></a>
-<span class="sourceLineNo">047</span> * A job with a just a map phase to count rows. Map outputs table rows IF the<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * input row has columns that have content.<a name="line.48"></a>
-<span class="sourceLineNo">049</span> */<a name="line.49"></a>
-<span class="sourceLineNo">050</span>@InterfaceAudience.Public<a name="line.50"></a>
-<span class="sourceLineNo">051</span>@InterfaceStability.Stable<a name="line.51"></a>
-<span class="sourceLineNo">052</span>public class RowCounter extends Configured implements Tool {<a name="line.52"></a>
-<span class="sourceLineNo">053</span><a name="line.53"></a>
-<span class="sourceLineNo">054</span> private static final Log LOG = LogFactory.getLog(RowCounter.class);<a name="line.54"></a>
+<span class="sourceLineNo">022</span><a name="line.22"></a>
+<span class="sourceLineNo">023</span>import org.apache.commons.logging.Log;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import org.apache.commons.logging.LogFactory;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import org.apache.commons.lang.StringUtils;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.HConstants;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.conf.Configuration;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.conf.Configured;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.client.Result;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.filter.FirstKeyOnlyFilter;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.io.ImmutableBytesWritable;<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.mapreduce.Counter;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.mapreduce.Job;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.mapreduce.lib.output.NullOutputFormat;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.util.Tool;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.util.ToolRunner;<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> * A job with a just a map phase to count rows. Map outputs table rows IF the<a name="line.44"></a>
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+<span class="sourceLineNo">106</span> final String startTimeArgKey = "--starttime=";<a name="line.106"></a>
+<span class="sourceLineNo">107</span> final String endTimeArgKey = "--endtime=";<a name="line.107"></a>
+<span class="sourceLineNo">108</span> final String expectedCountArg = "--expected-count=";<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span> // First argument is table name, starting from second<a name="line.110"></a>
+<span class="sourceLineNo">111</span> for (int i = 1; i < args.length; i++) {<a name="line.111"></a>
+<span class="sourceLineNo">112</span> if (args[i].startsWith(rangeSwitch)) {<a name="line.112"></a>
+<span class="sourceLineNo">113</span> String[] startEnd = args[i].substring(rangeSwitch.length()).split(",", 2);<a name="line.113"></a>
+<span class="sourceLineNo">114</span> if (startEnd.length != 2 || startEnd[1].contains(",")) {<a name="line.114"></a>
+<span class="sourceLineNo">115</span> printUsage("Please specify range in such format as \"--range=a,b\" " +<a name="line.115"></a>
+<span class="sourceLineNo">116</span> "or, with only one boundary, \"--range=,b\" or \"--range=a,\"");<a name="line.116"></a>
+<span class="sourceLineNo">117</span> return null;<a name="line.117"></a>
+<span class="sourceLineNo">118</span> }<a name="line.118"></a>
+<span class="sourceLineNo">119</span> startKey = startEnd[0];<a name="line.119"></a>
+<span class="sourceLineNo">120</span> endKey = startEnd[1];<a name="line.120"></a>
+<span class="sourceLineNo">121</span> }<a name="line.121"></a>
+<span class="sourceLineNo">122</span> if (startTime < endTime) {<a name="line.122"></a>
+<span class="sourceLineNo">123</span> printUsage("--endtime=" + endTime + " needs to be greater than --starttime=" + startTime);<a name="line.123"></a>
+<span class="sourceLineNo">124</span> return null;<a name="line.124"></a>
+<span class="sourceLineNo">125</span> }<a name="line.125"></a>
+<span class="sourceLineNo">126</span> if (args[i].startsWith(startTimeArgKey)) {<a name="line.126"></a>
+<span class="sourceLineNo">127</span> startTime = Long.parseLong(args[i].substring(startTimeArgKey.length()));<a name="line.127"></a>
+<span class="sourceLineNo">128</span> continue;<a name="line.128"></a>
+<span class="sourceLineNo">129</span> }<a name="line.129"></a>
+<span class="sourceLineNo">130</span> if (args[i].startsWith(endTimeArgKey)) {<a name="line.130"></a>
+<span class="sourceLineNo">131</span> endTime = Long.parseLong(args[i].substring(endTimeArgKey.length()));<a name="line.131"></a>
+<span class="sourceLineNo">132</span> continue;<a name="line.132"></a>
+<span class="sourceLineNo">133</span> }<a name="line.133"></a>
+<span class="sourceLineNo">134</span> if (args[i].startsWith(expectedCountArg)) {<a name="line.134"></a>
+<span class="sourceLineNo">135</span> conf.setLong(EXPECTED_COUNT_KEY,<a name="line.135"></a>
+<span class="sourceLineNo">136</span> Long.parseLong(args[i].substring(expectedCountArg.length())));<a name="line.136"></a>
+<span class="sourceLineNo">137</span> continue;<a name="line.137"></a>
+<span class="sourceLineNo">138</span> }<a name="line.138"></a>
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+<span class="sourceLineNo">140</span> // if no switch, assume column names<a name="line.140"></a>
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+<span class="sourceLineNo">142</span> sb.append(" ");<a name="line.142"></a>
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+<span class="sourceLineNo">144</span> }<a name="line.144"></a>
+<span class="sourceLineNo">145</span><a name="line.145"></a>
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+<span class="sourceLineNo">148</span> Scan scan = new Scan();<a name="line.148"></a>
+<span class="sourceLineNo">149</span> scan.setCacheBlocks(false);<a name="line.149"></a>
+<span class="sourceLineNo">150</span> if (startKey != null && !startKey.equals("")) {<a name="line.150"></a>
+<span class="sourceLineNo">151</span> scan.setStartRow(Bytes.toBytes(startKey));<a name="line.151"></a>
+<span class="sourceLineNo">152</span> }<a name="line.152"></a>
+<span class="sourceLineNo">153</span> if (endKey != null && !endKey.equals("")) {<a name="line.153"></a>
+<span class="sourceLineNo">154</span> scan.setStopRow(Bytes.toBytes(endKey));<a name="line.154"></a>
+<span class="sourceLineNo">155</span> }<a name="line.155"></a>
+<span class="sourceLineNo">156</span> if (sb.length() > 0) {<a name="line.156"></a>
+<span class="sourceLineNo">157</span> for (String columnName : sb.toString().trim().split(" ")) {<a name="line.157"></a>
+<span class="sourceLineNo">158</span> String family = StringUtils.substringBefore(columnName, ":");<a name="line.158"></a>
+<span class="sourceLineNo">159</span> String qualifier = StringUtils.substringAfter(columnName, ":");<a name="line.159"></a>
+<span class="sourceLineNo">160</span><a name="line.160"></a>
+<span class="sourceLineNo">161</span> if (StringUtils.isBlank(qualifier)) {<a name="line.161"></a>
+<span class="sourceLineNo">162</span> scan.addFamily(Bytes.toBytes(family));<a name="line.162"></a>
+<span class="sourceLineNo">163</span> }<a name="line.163"></a>
+<span class="sourceLineNo">164</span> else {<a name="line.164"></a>
+<span class="sourceLineNo">165</span> scan.addColumn(Bytes.toBytes(family), Bytes.toBytes(qualifier));<a name="line.165"></a>
+<span class="sourceLineNo">166</span> }<a name="line.166"></a>
+<span class="sourceLineNo">167</span> }<a name="line.167"></a>
+<span class="sourceLineNo">168</span> }<a name="line.168"></a>
+<span class="sourceLineNo">169</span> scan.setFilter(new FirstKeyOnlyFilter());<a name="line.169"></a>
+<span class="sourceLineNo">170</span> scan.setTimeRange(startTime, endTime == 0 ? HConstants.LATEST_TIMESTAMP : endTime);<a name="line.170"></a>
+<span class="sourceLineNo">171</span> job.setOutputFormatClass(NullOutputFormat.class);<a name="line.171"></a>
+<span class="sourceLineNo">172</span> TableMapReduceUtil.initTableMapperJob(tableName, scan,<a name="line.172"></a>
+<span class="sourceLineNo">173</span> RowCounterMapper.class, ImmutableBytesWritable.class, Result.class, job);<a name="line.173"></a>
+<span class="sourceLineNo">174</span> job.setNumReduceTasks(0);<a name="line.174"></a>
+<span class="sourceLineNo">175</span> return job;<a name="line.175"></a>
+<span class="sourceLineNo">176</span> }<a name="line.176"></a>
+<span class="sourceLineNo">177</span><a name="line.177"></a>
+<span class="sourceLineNo">178</span> /*<a name="line.178"></a>
+<span class="sourceLineNo">179</span> * @param errorMessage Can attach a message when error occurs.<a name="line.179"></a>
+<span class="sourceLineNo">180</span> */<a name="line.180"></a>
+<span class="sourceLineNo">181</span> private static void printUsage(String errorMessage) {<a name="line.181"></a>
+<span class="sourceLineNo">182</span> System.err.println("ERROR: " + errorMessage);<a name="line.182"></a>
+<span class="sourceLineNo">183</span> printUsage();<a name="line.183"></a>
+<span class="sourceLineNo">184</span> }<a name="line.184"></a>
+<span class="sourceLineNo">185</span><a name="line.185"></a>
+<span class="sourceLineNo">186</span> /**<a name="line.186"></a>
+<span class="sourceLineNo">187</span> * Prints usage without error message.<a name="line.187"></a>
+<span class="sourceLineNo">188</span> * Note that we don't document --expected-count, because it's intended for test.<a name="line.188"></a>
+<span class="sourceLineNo">189</span> */<a name="line.189"></a>
+<span class="sourceLineNo">190</span> private static void printUsage() {<a name="line.190"></a>
+<span class="sourceLineNo">191</span> System.err.println("Usage: RowCounter [options] <tablename> " +<a name="line.191"></a>
+<span class="sourceLineNo">192</span> "[--starttime=[start] --endtime=[end] " +<a name="line.192"></a>
+<span class="sourceLineNo">193</span> "[--range=[startKey],[endKey]] [<column1> <column2>...]");<a name="line.193"></a>
+<span class="sourceLineNo">194</span> System.err.println("For performance consider the following options:\n"<a name="line.194"></a>
+<span class="sourceLineNo">195</span> + "-Dhbase.client.scanner.caching=100\n"<a name="line.195"></a>
+<span class="sourceLineNo">196</span> + "-Dmapreduce.map.speculative=false");<a name="line.196"></a>
+<span class="sourceLineNo">197</span> }<a name="line.197"></a>
+<span class="sourceLineNo">198</span><a name="line.198"></a>
+<span class="sourceLineNo">199</span> @Override<a name="line.199"></a>
+<span class="sourceLineNo">200</span> public int run(String[] args) throws Exception {<a name="line.200"></a>
+<span class="sourceLineNo">201</span> if (args.length < 1) {<a name="line.201"></a>
+<span class="sourceLineNo">202</span> printUsage("Wrong number of parameters: " + args.length);<a name="line.202"></a>
+<span class="sourceLineNo">203</span> return -1;<a name="line.203"></a>
+<span class="sourceLineNo">204</span> }<a name="line.204"></a>
+<span class="sourceLineNo">205</span> Job job = createSubmittableJob(getConf(), args);<a name="line.205"></a>
+<span class="sourceLineNo">206</span> if (job == null) {<a name="line.206"></a>
+<span class="sourceLineNo">207</span> return -1;<a name="line.207"></a>
+<span class="sourceLineNo">208</span> }<a name="line.208"></a>
+<span class="sourceLineNo">209</span> boolean success = job.waitForCompletion(true);<a name="line.209"></a>
+<span class="sourceLineNo">210</span> final long expectedCount = getConf().getLong(EXPECTED_COUNT_KEY, -1);<a name="line.210"></a>
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+<span class="sourceLineNo">212</span> final Counter counter = job.getCounters().findCounter(RowCounterMapper.Counters.ROWS);<a name="line.212"></a>
+<span class="sourceLineNo">213</span> success = expectedCount == counter.getValue();<a name="line.213"></a>
+<span class="sourceLineNo">214</span> if (!success) {<a name="line.214"></a>
+<span class="sourceLineNo">215</span> LOG.error("Failing job because count of '" + counter.getValue() +<a name="line.215"></a>
+<span class="sourceLineNo">216</span> "' does not match expected count of '" + expectedCount + "'");<a name="line.216"></a>
+<span class="sourceLineNo">217</span> }<a name="line.217"></a>
+<span class="sourceLineNo">218</span> }<a name="line.218"></a>
+<span class="sourceLineNo">219</span> return (success ? 0 : 1);<a name="line.219"></a>
+<span class="sourceLineNo">220</span> }<a name="line.220"></a>
+<span class="sourceLineNo">221</span><a name="line.221"></a>
+<span class="sourceLineNo">222</span> /**<a name="line.222"></a>
+<span class="sourceLineNo">223</span> * Main entry point.<a name="line.223"></a>
+<span class="sourceLineNo">224</span> * @param args The command line parameters.<a name="line.224"></a>
+<span class="sourceLineNo">225</span> * @throws Exception When running the job fails.<a name="line.225"></a>
+<span class="sourceLineNo">226</span> */<a name="line.226"></a>
+<span class="sourceLineNo">227</span> public static void main(String[] args) throws Exception {<a name="line.227"></a>
+<span class="sourceLineNo">228</span> int errCode = ToolRunner.run(HBaseConfiguration.create(), new RowCounter(), args);<a name="line.228"></a>
+<span class="sourceLineNo">229</span> System.exit(errCode);<a name="line.229"></a>
+<span class="sourceLineNo">230</span> }<a name="line.230"></a>
+<span class="sourceLineNo">231</span><a name="line.231"></a>
+<span class="sourceLineNo">232</span>}<a name="line.232"></a>