http://git-wip-us.apache.org/repos/asf/hbase-site/blob/fdcfc8d5/devapidocs/src-html/org/apache/hadoop/hbase/quotas/QuotaTableUtil.NamespaceQuotasVisitor.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/quotas/QuotaTableUtil.NamespaceQuotasVisitor.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/quotas/QuotaTableUtil.NamespaceQuotasVisitor.html
index 3c6f9b8..7d3deb8 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/quotas/QuotaTableUtil.NamespaceQuotasVisitor.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/quotas/QuotaTableUtil.NamespaceQuotasVisitor.html
@@ -39,731 +39,772 @@
 <span class="sourceLineNo">031</span>import org.apache.commons.logging.Log;<a 
name="line.31"></a>
 <span class="sourceLineNo">032</span>import 
org.apache.commons.logging.LogFactory;<a name="line.32"></a>
 <span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.Cell;<a 
name="line.33"></a>
-<span class="sourceLineNo">034</span>import 
org.apache.hadoop.hbase.NamespaceDescriptor;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.ServerName;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import 
org.apache.hadoop.hbase.TableName;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import 
org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import 
org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import 
org.apache.hadoop.hbase.client.ClusterConnection;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import 
org.apache.hadoop.hbase.client.Connection;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import 
org.apache.hadoop.hbase.client.Get;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import 
org.apache.hadoop.hbase.client.Put;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import 
org.apache.hadoop.hbase.client.QuotaStatusCalls;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import 
org.apache.hadoop.hbase.client.Result;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import 
org.apache.hadoop.hbase.client.ResultScanner;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import 
org.apache.hadoop.hbase.client.Scan;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import 
org.apache.hadoop.hbase.client.Table;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import 
org.apache.hadoop.hbase.filter.ColumnPrefixFilter;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import 
org.apache.hadoop.hbase.filter.CompareFilter;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import 
org.apache.hadoop.hbase.filter.Filter;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import 
org.apache.hadoop.hbase.filter.FilterList;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import 
org.apache.hadoop.hbase.filter.QualifierFilter;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import 
org.apache.hadoop.hbase.filter.RegexStringComparator;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import 
org.apache.hadoop.hbase.filter.RowFilter;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import 
org.apache.hadoop.hbase.protobuf.ProtobufMagic;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import 
org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString;<a 
name="line.56"></a>
-<span class="sourceLineNo">057</span>import 
org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException;<a
 name="line.57"></a>
-<span class="sourceLineNo">058</span>import 
org.apache.hadoop.hbase.shaded.com.google.protobuf.UnsafeByteOperations;<a 
name="line.58"></a>
-<span class="sourceLineNo">059</span>import 
org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a 
name="line.60"></a>
-<span class="sourceLineNo">061</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos;<a 
name="line.61"></a>
-<span class="sourceLineNo">062</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetQuotaStatesResponse;<a
 name="line.62"></a>
-<span class="sourceLineNo">063</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaRegionSizesResponse;<a
 name="line.63"></a>
-<span class="sourceLineNo">064</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse;<a
 name="line.64"></a>
-<span class="sourceLineNo">065</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse.TableQuotaSnapshot;<a
 name="line.65"></a>
-<span class="sourceLineNo">066</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaRegionSizesResponse.RegionSizes;<a
 name="line.66"></a>
-<span class="sourceLineNo">067</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.Quotas;<a 
name="line.67"></a>
-<span class="sourceLineNo">068</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuota;<a 
name="line.68"></a>
-<span class="sourceLineNo">069</span>import 
org.apache.hadoop.hbase.util.Bytes;<a name="line.69"></a>
-<span class="sourceLineNo">070</span>import 
org.apache.hadoop.hbase.util.Strings;<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> * Helper class to interact with the 
quota table.<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * &lt;table&gt;<a name="line.74"></a>
-<span class="sourceLineNo">075</span> *   
&lt;tr&gt;&lt;th&gt;ROW-KEY&lt;/th&gt;&lt;th&gt;FAM/QUAL&lt;/th&gt;&lt;th&gt;DATA&lt;/th&gt;&lt;/tr&gt;<a
 name="line.75"></a>
-<span class="sourceLineNo">076</span> *   
&lt;tr&gt;&lt;td&gt;n.&amp;lt;namespace&amp;gt;&lt;/td&gt;&lt;td&gt;q:s&lt;/td&gt;&lt;td&gt;&amp;lt;global-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
 name="line.76"></a>
-<span class="sourceLineNo">077</span> *   
&lt;tr&gt;&lt;td&gt;n.&amp;lt;namespace&amp;gt;&lt;/td&gt;&lt;td&gt;u:p&lt;/td&gt;&lt;td&gt;&amp;lt;namespace-quota
 policy&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a name="line.77"></a>
-<span class="sourceLineNo">078</span> *   
&lt;tr&gt;&lt;td&gt;n.&amp;lt;namespace&amp;gt;&lt;/td&gt;&lt;td&gt;u:s&lt;/td&gt;&lt;td&gt;&amp;lt;SpaceQuotaSnapshot&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
 name="line.78"></a>
-<span class="sourceLineNo">079</span> *   
&lt;tr&gt;&lt;td&gt;t.&amp;lt;table&amp;gt;&lt;/td&gt;&lt;td&gt;q:s&lt;/td&gt;&lt;td&gt;&amp;lt;global-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
 name="line.79"></a>
-<span class="sourceLineNo">080</span> *   
&lt;tr&gt;&lt;td&gt;t.&amp;lt;table&amp;gt;&lt;/td&gt;&lt;td&gt;u:p&lt;/td&gt;&lt;td&gt;&amp;lt;table-quota
 policy&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a name="line.80"></a>
-<span class="sourceLineNo">081</span> *   
&lt;tr&gt;&lt;td&gt;t.&amp;lt;table&amp;gt;&lt;/td&gt;&lt;td&gt;u:ss.&amp;lt;snapshot
 
name&amp;gt;&lt;/td&gt;&lt;td&gt;&amp;lt;SpaceQuotaSnapshot&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
 name="line.81"></a>
-<span class="sourceLineNo">082</span> *   
&lt;tr&gt;&lt;td&gt;u.&amp;lt;user&amp;gt;&lt;/td&gt;&lt;td&gt;q:s&lt;/td&gt;&lt;td&gt;&amp;lt;global-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
 name="line.82"></a>
-<span class="sourceLineNo">083</span> *   
&lt;tr&gt;&lt;td&gt;u.&amp;lt;user&amp;gt;&lt;/td&gt;&lt;td&gt;q:s.&amp;lt;table&amp;gt;&lt;/td&gt;&lt;td&gt;&amp;lt;table-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
 name="line.83"></a>
-<span class="sourceLineNo">084</span> *   
&lt;tr&gt;&lt;td&gt;u.&amp;lt;user&amp;gt;&lt;/td&gt;&lt;td&gt;q:s.&amp;lt;ns&amp;gt;&lt;/td&gt;&lt;td&gt;&amp;lt;namespace-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
 name="line.84"></a>
-<span class="sourceLineNo">085</span> * &lt;/table<a name="line.85"></a>
-<span class="sourceLineNo">086</span> */<a name="line.86"></a>
-<span class="sourceLineNo">087</span>@InterfaceAudience.Private<a 
name="line.87"></a>
-<span class="sourceLineNo">088</span>@InterfaceStability.Evolving<a 
name="line.88"></a>
-<span class="sourceLineNo">089</span>public class QuotaTableUtil {<a 
name="line.89"></a>
-<span class="sourceLineNo">090</span>  private static final Log LOG = 
LogFactory.getLog(QuotaTableUtil.class);<a name="line.90"></a>
-<span class="sourceLineNo">091</span><a name="line.91"></a>
-<span class="sourceLineNo">092</span>  /** System table for quotas */<a 
name="line.92"></a>
-<span class="sourceLineNo">093</span>  public static final TableName 
QUOTA_TABLE_NAME =<a name="line.93"></a>
-<span class="sourceLineNo">094</span>      
TableName.valueOf(NamespaceDescriptor.SYSTEM_NAMESPACE_NAME_STR, "quota");<a 
name="line.94"></a>
-<span class="sourceLineNo">095</span><a name="line.95"></a>
-<span class="sourceLineNo">096</span>  protected static final byte[] 
QUOTA_FAMILY_INFO = Bytes.toBytes("q");<a name="line.96"></a>
-<span class="sourceLineNo">097</span>  protected static final byte[] 
QUOTA_FAMILY_USAGE = Bytes.toBytes("u");<a name="line.97"></a>
-<span class="sourceLineNo">098</span>  protected static final byte[] 
QUOTA_QUALIFIER_SETTINGS = Bytes.toBytes("s");<a name="line.98"></a>
-<span class="sourceLineNo">099</span>  protected static final byte[] 
QUOTA_QUALIFIER_SETTINGS_PREFIX = Bytes.toBytes("s.");<a name="line.99"></a>
-<span class="sourceLineNo">100</span>  protected static final byte[] 
QUOTA_QUALIFIER_POLICY = Bytes.toBytes("p");<a name="line.100"></a>
-<span class="sourceLineNo">101</span>  protected static final byte[] 
QUOTA_SNAPSHOT_SIZE_QUALIFIER = Bytes.toBytes("ss");<a name="line.101"></a>
-<span class="sourceLineNo">102</span>  protected static final String 
QUOTA_POLICY_COLUMN =<a name="line.102"></a>
-<span class="sourceLineNo">103</span>      Bytes.toString(QUOTA_FAMILY_USAGE) 
+ ":" + Bytes.toString(QUOTA_QUALIFIER_POLICY);<a name="line.103"></a>
-<span class="sourceLineNo">104</span>  protected static final byte[] 
QUOTA_USER_ROW_KEY_PREFIX = Bytes.toBytes("u.");<a name="line.104"></a>
-<span class="sourceLineNo">105</span>  protected static final byte[] 
QUOTA_TABLE_ROW_KEY_PREFIX = Bytes.toBytes("t.");<a name="line.105"></a>
-<span class="sourceLineNo">106</span>  protected static final byte[] 
QUOTA_NAMESPACE_ROW_KEY_PREFIX = Bytes.toBytes("n.");<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>   *  Quota "settings" helpers<a 
name="line.109"></a>
-<span class="sourceLineNo">110</span>   */<a name="line.110"></a>
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getTableQuota(final Connection connection, final TableName table)<a 
name="line.111"></a>
-<span class="sourceLineNo">112</span>      throws IOException {<a 
name="line.112"></a>
-<span class="sourceLineNo">113</span>    return getQuotas(connection, 
getTableRowKey(table));<a name="line.113"></a>
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-<span class="sourceLineNo">115</span><a name="line.115"></a>
-<span class="sourceLineNo">116</span>  public static Quotas 
getNamespaceQuota(final Connection connection, final String namespace)<a 
name="line.116"></a>
-<span class="sourceLineNo">117</span>      throws IOException {<a 
name="line.117"></a>
-<span class="sourceLineNo">118</span>    return getQuotas(connection, 
getNamespaceRowKey(namespace));<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>  public static Quotas getUserQuota(final 
Connection connection, final String user)<a name="line.121"></a>
-<span class="sourceLineNo">122</span>      throws IOException {<a 
name="line.122"></a>
-<span class="sourceLineNo">123</span>    return getQuotas(connection, 
getUserRowKey(user));<a name="line.123"></a>
-<span class="sourceLineNo">124</span>  }<a name="line.124"></a>
-<span class="sourceLineNo">125</span><a name="line.125"></a>
-<span class="sourceLineNo">126</span>  public static Quotas getUserQuota(final 
Connection connection, final String user,<a name="line.126"></a>
-<span class="sourceLineNo">127</span>      final TableName table) throws 
IOException {<a name="line.127"></a>
-<span class="sourceLineNo">128</span>    return getQuotas(connection, 
getUserRowKey(user), getSettingsQualifierForUserTable(table));<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>
-<span class="sourceLineNo">131</span>  public static Quotas getUserQuota(final 
Connection connection, final String user,<a name="line.131"></a>
-<span class="sourceLineNo">132</span>      final String namespace) throws 
IOException {<a name="line.132"></a>
-<span class="sourceLineNo">133</span>    return getQuotas(connection, 
getUserRowKey(user),<a name="line.133"></a>
-<span class="sourceLineNo">134</span>      
getSettingsQualifierForUserNamespace(namespace));<a name="line.134"></a>
-<span class="sourceLineNo">135</span>  }<a name="line.135"></a>
-<span class="sourceLineNo">136</span><a name="line.136"></a>
-<span class="sourceLineNo">137</span>  private static Quotas getQuotas(final 
Connection connection, final byte[] rowKey)<a name="line.137"></a>
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name="line.138"></a>
-<span class="sourceLineNo">139</span>    return getQuotas(connection, rowKey, 
QUOTA_QUALIFIER_SETTINGS);<a name="line.139"></a>
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Connection connection, final byte[] rowKey,<a name="line.142"></a>
-<span class="sourceLineNo">143</span>      final byte[] qualifier) throws 
IOException {<a name="line.143"></a>
-<span class="sourceLineNo">144</span>    Get get = new Get(rowKey);<a 
name="line.144"></a>
-<span class="sourceLineNo">145</span>    get.addColumn(QUOTA_FAMILY_INFO, 
qualifier);<a name="line.145"></a>
-<span class="sourceLineNo">146</span>    Result result = doGet(connection, 
get);<a name="line.146"></a>
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name="line.147"></a>
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-<span class="sourceLineNo">149</span>    }<a name="line.149"></a>
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quotasFromData(result.getValue(QUOTA_FAMILY_INFO, qualifier));<a 
name="line.150"></a>
-<span class="sourceLineNo">151</span>  }<a name="line.151"></a>
-<span class="sourceLineNo">152</span><a name="line.152"></a>
-<span class="sourceLineNo">153</span>  public static Get 
makeGetForTableQuotas(final TableName table) {<a name="line.153"></a>
-<span class="sourceLineNo">154</span>    Get get = new 
Get(getTableRowKey(table));<a name="line.154"></a>
-<span class="sourceLineNo">155</span>    get.addFamily(QUOTA_FAMILY_INFO);<a 
name="line.155"></a>
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-<span class="sourceLineNo">157</span>  }<a name="line.157"></a>
-<span class="sourceLineNo">158</span><a name="line.158"></a>
-<span class="sourceLineNo">159</span>  public static Get 
makeGetForNamespaceQuotas(final String namespace) {<a name="line.159"></a>
-<span class="sourceLineNo">160</span>    Get get = new 
Get(getNamespaceRowKey(namespace));<a name="line.160"></a>
-<span class="sourceLineNo">161</span>    get.addFamily(QUOTA_FAMILY_INFO);<a 
name="line.161"></a>
-<span class="sourceLineNo">162</span>    return get;<a name="line.162"></a>
-<span class="sourceLineNo">163</span>  }<a name="line.163"></a>
-<span class="sourceLineNo">164</span><a name="line.164"></a>
-<span class="sourceLineNo">165</span>  public static Get 
makeGetForUserQuotas(final String user, final Iterable&lt;TableName&gt; 
tables,<a name="line.165"></a>
-<span class="sourceLineNo">166</span>      final Iterable&lt;String&gt; 
namespaces) {<a name="line.166"></a>
-<span class="sourceLineNo">167</span>    Get get = new 
Get(getUserRowKey(user));<a name="line.167"></a>
-<span class="sourceLineNo">168</span>    get.addColumn(QUOTA_FAMILY_INFO, 
QUOTA_QUALIFIER_SETTINGS);<a name="line.168"></a>
-<span class="sourceLineNo">169</span>    for (final TableName table: tables) 
{<a name="line.169"></a>
-<span class="sourceLineNo">170</span>      get.addColumn(QUOTA_FAMILY_INFO, 
getSettingsQualifierForUserTable(table));<a name="line.170"></a>
-<span class="sourceLineNo">171</span>    }<a name="line.171"></a>
-<span class="sourceLineNo">172</span>    for (final String ns: namespaces) {<a 
name="line.172"></a>
-<span class="sourceLineNo">173</span>      get.addColumn(QUOTA_FAMILY_INFO, 
getSettingsQualifierForUserNamespace(ns));<a name="line.173"></a>
-<span class="sourceLineNo">174</span>    }<a name="line.174"></a>
-<span class="sourceLineNo">175</span>    return get;<a name="line.175"></a>
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-<span class="sourceLineNo">177</span><a name="line.177"></a>
-<span class="sourceLineNo">178</span>  public static Scan makeScan(final 
QuotaFilter filter) {<a name="line.178"></a>
-<span class="sourceLineNo">179</span>    Scan scan = new Scan();<a 
name="line.179"></a>
-<span class="sourceLineNo">180</span>    scan.addFamily(QUOTA_FAMILY_INFO);<a 
name="line.180"></a>
-<span class="sourceLineNo">181</span>    if (filter != null &amp;&amp; 
!filter.isNull()) {<a name="line.181"></a>
-<span class="sourceLineNo">182</span>      
scan.setFilter(makeFilter(filter));<a name="line.182"></a>
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-<span class="sourceLineNo">184</span>    return scan;<a name="line.184"></a>
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-<span class="sourceLineNo">186</span><a name="line.186"></a>
-<span class="sourceLineNo">187</span>  /**<a name="line.187"></a>
-<span class="sourceLineNo">188</span>   * converts quotafilter to 
serializeable filterlists.<a name="line.188"></a>
-<span class="sourceLineNo">189</span>   */<a name="line.189"></a>
-<span class="sourceLineNo">190</span>  public static Filter makeFilter(final 
QuotaFilter filter) {<a name="line.190"></a>
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FilterList(FilterList.Operator.MUST_PASS_ALL);<a name="line.191"></a>
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(!Strings.isEmpty(filter.getUserFilter())) {<a name="line.192"></a>
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FilterList(FilterList.Operator.MUST_PASS_ONE);<a name="line.193"></a>
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name="line.194"></a>
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(!Strings.isEmpty(filter.getNamespaceFilter())) {<a name="line.196"></a>
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FilterList(FilterList.Operator.MUST_PASS_ALL);<a name="line.197"></a>
-<span class="sourceLineNo">198</span>        nsFilters.addFilter(new 
RowFilter(CompareFilter.CompareOp.EQUAL,<a name="line.198"></a>
-<span class="sourceLineNo">199</span>            new 
RegexStringComparator(getUserRowKeyRegex(filter.getUserFilter()), 0)));<a 
name="line.199"></a>
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QualifierFilter(CompareFilter.CompareOp.EQUAL,<a name="line.200"></a>
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name="line.201"></a>
-<span class="sourceLineNo">202</span>              
getSettingsQualifierRegexForUserNamespace(filter.getNamespaceFilter()), 0)));<a 
name="line.202"></a>
-<span class="sourceLineNo">203</span>        
userFilters.addFilter(nsFilters);<a name="line.203"></a>
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name="line.204"></a>
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(!Strings.isEmpty(filter.getTableFilter())) {<a name="line.206"></a>
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FilterList(FilterList.Operator.MUST_PASS_ALL);<a name="line.207"></a>
-<span class="sourceLineNo">208</span>        tableFilters.addFilter(new 
RowFilter(CompareFilter.CompareOp.EQUAL,<a name="line.208"></a>
-<span class="sourceLineNo">209</span>            new 
RegexStringComparator(getUserRowKeyRegex(filter.getUserFilter()), 0)));<a 
name="line.209"></a>
-<span class="sourceLineNo">210</span>        tableFilters.addFilter(new 
QualifierFilter(CompareFilter.CompareOp.EQUAL,<a name="line.210"></a>
-<span class="sourceLineNo">211</span>            new RegexStringComparator(<a 
name="line.211"></a>
-<span class="sourceLineNo">212</span>              
getSettingsQualifierRegexForUserTable(filter.getTableFilter()), 0)));<a 
name="line.212"></a>
-<span class="sourceLineNo">213</span>        
userFilters.addFilter(tableFilters);<a name="line.213"></a>
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quotaSettings.addAll(QuotaSettingsFactory.fromUserQuotas(userName, table, 
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quotaSettings.addAll(QuotaSettingsFactory.fromUserQuotas(userName, namespace, 
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quotaSettings.addAll(QuotaSettingsFactory.fromTableQuotas(tableName, 
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quotaSettings.addAll(QuotaSettingsFactory.fromNamespaceQuotas(namespace, 
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visitor.visitNamespaceQuotas(namespace, quotas);<a name="line.386"></a>
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given Cell's value.<a name="line.508"></a>
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getTableRowKey(table);<a name="line.517"></a>
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=========================================================================<a 
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filesystem as tracked by the HBase Master.<a name="line.532"></a>
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getMasterReportedTableSizes(<a name="line.534"></a>
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{<a name="line.535"></a>
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response.getSizesList()) {<a name="line.543"></a>
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Map&lt;TableName,SpaceQuotaSnapshot&gt; getRegionServerQuotaSnapshots(<a 
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regionServer) throws IOException {<a name="line.554"></a>
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Map&lt;TableName,SpaceQuotaSnapshot&gt; snapshots = new HashMap&lt;&gt;();<a 
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ProtobufUtil.toTableName(snapshot.getTableName()),<a name="line.564"></a>
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SpaceQuotaSnapshot.toSpaceQuotaSnapshot(snapshot.getSnapshot()));<a 
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on the given {@code tableName} or null if the<a name="line.571"></a>
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that table.<a name="line.572"></a>
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(GetQuotaStatesResponse.TableQuotaSnapshot tableSnapshot : 
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(protoTableName.equals(tableSnapshot.getTableName())) {<a name="line.583"></a>
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on the given {@code namespace} or null if the<a name="line.591"></a>
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that namespace.<a name="line.592"></a>
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getCurrentSnapshot(<a name="line.594"></a>
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throws IOException {<a name="line.595"></a>
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ClusterConnection)) {<a name="line.596"></a>
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IllegalArgumentException("Expected a ClusterConnection");<a name="line.597"></a>
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QuotaStatusCalls.getMasterQuotaStates(clusterConn, 0);<a name="line.600"></a>
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(GetQuotaStatesResponse.NamespaceQuotaSnapshot nsSnapshot : 
resp.getNsSnapshotsList()) {<a name="line.601"></a>
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(namespace.equals(nsSnapshot.getNamespace())) {<a name="line.602"></a>
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SpaceQuotaSnapshot.toSpaceQuotaSnapshot(nsSnapshot.getSnapshot());<a 
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=========================================================================<a 
name="line.609"></a>
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name="line.610"></a>
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quotasFromData(final byte[] data) throws IOException {<a name="line.612"></a>
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data.length);<a name="line.613"></a>
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quotasFromData(<a name="line.616"></a>
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length) throws IOException {<a name="line.617"></a>
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(!ProtobufMagic.isPBMagicPrefix(data, offset, magicLen)) {<a 
name="line.619"></a>
-<span class="sourceLineNo">620</span>      throw new IOException("Missing pb 
magic prefix");<a name="line.620"></a>
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org.apache.hadoop.hbase.CellScanner;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import 
org.apache.hadoop.hbase.NamespaceDescriptor;<a name="line.35"></a>
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org.apache.hadoop.hbase.ServerName;<a name="line.36"></a>
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org.apache.hadoop.hbase.TableName;<a name="line.37"></a>
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org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.38"></a>
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org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.39"></a>
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org.apache.hadoop.hbase.client.ClusterConnection;<a name="line.40"></a>
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org.apache.hadoop.hbase.client.Connection;<a name="line.41"></a>
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org.apache.hadoop.hbase.client.Get;<a name="line.42"></a>
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org.apache.hadoop.hbase.client.Put;<a name="line.43"></a>
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org.apache.hadoop.hbase.client.QuotaStatusCalls;<a name="line.44"></a>
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org.apache.hadoop.hbase.client.Result;<a name="line.45"></a>
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org.apache.hadoop.hbase.client.ResultScanner;<a name="line.46"></a>
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org.apache.hadoop.hbase.client.Scan;<a name="line.47"></a>
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org.apache.hadoop.hbase.client.Table;<a name="line.48"></a>
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org.apache.hadoop.hbase.filter.ColumnPrefixFilter;<a name="line.49"></a>
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org.apache.hadoop.hbase.filter.CompareFilter;<a name="line.50"></a>
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org.apache.hadoop.hbase.filter.Filter;<a name="line.51"></a>
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org.apache.hadoop.hbase.filter.FilterList;<a name="line.52"></a>
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org.apache.hadoop.hbase.filter.QualifierFilter;<a name="line.53"></a>
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org.apache.hadoop.hbase.filter.RegexStringComparator;<a name="line.54"></a>
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org.apache.hadoop.hbase.filter.RowFilter;<a name="line.55"></a>
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org.apache.hadoop.hbase.protobuf.ProtobufMagic;<a name="line.56"></a>
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org.apache.hadoop.hbase.shaded.com.google.protobuf.ByteString;<a 
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org.apache.hadoop.hbase.shaded.com.google.protobuf.InvalidProtocolBufferException;<a
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org.apache.hadoop.hbase.shaded.com.google.protobuf.UnsafeByteOperations;<a 
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org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.60"></a>
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org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a 
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org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos;<a 
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org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetQuotaStatesResponse;<a
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org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaRegionSizesResponse;<a
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org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse;<a
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+<span class="sourceLineNo">066</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse.TableQuotaSnapshot;<a
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+<span class="sourceLineNo">067</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaRegionSizesResponse.RegionSizes;<a
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+<span class="sourceLineNo">068</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.Quotas;<a 
name="line.68"></a>
+<span class="sourceLineNo">069</span>import 
org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.SpaceQuota;<a 
name="line.69"></a>
+<span class="sourceLineNo">070</span>import 
org.apache.hadoop.hbase.util.Bytes;<a name="line.70"></a>
+<span class="sourceLineNo">071</span>import 
org.apache.hadoop.hbase.util.Strings;<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> * Helper class to interact with the 
quota table.<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * &lt;table&gt;<a name="line.75"></a>
+<span class="sourceLineNo">076</span> *   
&lt;tr&gt;&lt;th&gt;ROW-KEY&lt;/th&gt;&lt;th&gt;FAM/QUAL&lt;/th&gt;&lt;th&gt;DATA&lt;/th&gt;&lt;/tr&gt;<a
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+<span class="sourceLineNo">077</span> *   
&lt;tr&gt;&lt;td&gt;n.&amp;lt;namespace&amp;gt;&lt;/td&gt;&lt;td&gt;q:s&lt;/td&gt;&lt;td&gt;&amp;lt;global-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
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+<span class="sourceLineNo">078</span> *   
&lt;tr&gt;&lt;td&gt;n.&amp;lt;namespace&amp;gt;&lt;/td&gt;&lt;td&gt;u:p&lt;/td&gt;&lt;td&gt;&amp;lt;namespace-quota
 policy&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a name="line.78"></a>
+<span class="sourceLineNo">079</span> *   
&lt;tr&gt;&lt;td&gt;n.&amp;lt;namespace&amp;gt;&lt;/td&gt;&lt;td&gt;u:s&lt;/td&gt;&lt;td&gt;&amp;lt;SpaceQuotaSnapshot&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
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+<span class="sourceLineNo">080</span> *   
&lt;tr&gt;&lt;td&gt;t.&amp;lt;table&amp;gt;&lt;/td&gt;&lt;td&gt;q:s&lt;/td&gt;&lt;td&gt;&amp;lt;global-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
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+<span class="sourceLineNo">081</span> *   
&lt;tr&gt;&lt;td&gt;t.&amp;lt;table&amp;gt;&lt;/td&gt;&lt;td&gt;u:p&lt;/td&gt;&lt;td&gt;&amp;lt;table-quota
 policy&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a name="line.81"></a>
+<span class="sourceLineNo">082</span> *   
&lt;tr&gt;&lt;td&gt;t.&amp;lt;table&amp;gt;&lt;/td&gt;&lt;td&gt;u:ss.&amp;lt;snapshot
 
name&amp;gt;&lt;/td&gt;&lt;td&gt;&amp;lt;SpaceQuotaSnapshot&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
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+<span class="sourceLineNo">083</span> *   
&lt;tr&gt;&lt;td&gt;u.&amp;lt;user&amp;gt;&lt;/td&gt;&lt;td&gt;q:s&lt;/td&gt;&lt;td&gt;&amp;lt;global-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
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+<span class="sourceLineNo">084</span> *   
&lt;tr&gt;&lt;td&gt;u.&amp;lt;user&amp;gt;&lt;/td&gt;&lt;td&gt;q:s.&amp;lt;table&amp;gt;&lt;/td&gt;&lt;td&gt;&amp;lt;table-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
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+<span class="sourceLineNo">085</span> *   
&lt;tr&gt;&lt;td&gt;u.&amp;lt;user&amp;gt;&lt;/td&gt;&lt;td&gt;q:s.&amp;lt;ns&amp;gt;&lt;/td&gt;&lt;td&gt;&amp;lt;namespace-quotas&amp;gt;&lt;/td&gt;&lt;/tr&gt;<a
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+<span class="sourceLineNo">086</span> * &lt;/table<a name="line.86"></a>
+<span class="sourceLineNo">087</span> */<a name="line.87"></a>
+<span class="sourceLineNo">088</span>@InterfaceAudience.Private<a 
name="line.88"></a>
+<span class="sourceLineNo">089</span>@InterfaceStability.Evolving<a 
name="line.89"></a>
+<span class="sourceLineNo">090</span>public class QuotaTableUtil {<a 
name="line.90"></a>
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LogFactory.getLog(QuotaTableUtil.class);<a name="line.91"></a>
+<span class="sourceLineNo">092</span><a name="line.92"></a>
+<span class="sourceLineNo">093</span>  /** System table for quotas */<a 
name="line.93"></a>
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QUOTA_TABLE_NAME =<a name="line.94"></a>
+<span class="sourceLineNo">095</span>      
TableName.valueOf(NamespaceDescriptor.SYSTEM_NAMESPACE_NAME_STR, "quota");<a 
name="line.95"></a>
+<span class="sourceLineNo">096</span><a name="line.96"></a>
+<span class="sourceLineNo">097</span>  protected static final byte[] 
QUOTA_FAMILY_INFO = Bytes.toBytes("q");<a name="line.97"></a>
+<span class="sourceLineNo">098</span>  protected static final byte[] 
QUOTA_FAMILY_USAGE = Bytes.toBytes("u");<a name="line.98"></a>
+<span class="sourceLineNo">099</span>  protected static final byte[] 
QUOTA_QUALIFIER_SETTINGS = Bytes.toBytes("s");<a name="line.99"></a>
+<span class="sourceLineNo">100</span>  protected static final byte[] 
QUOTA_QUALIFIER_SETTINGS_PREFIX = Bytes.toBytes("s.");<a name="line.100"></a>
+<span class="sourceLineNo">101</span>  protected static final byte[] 
QUOTA_QUALIFIER_POLICY = Bytes.toBytes("p");<a name="line.101"></a>
+<span class="sourceLineNo">102</span>  protected static final byte[] 
QUOTA_SNAPSHOT_SIZE_QUALIFIER = Bytes.toBytes("ss");<a name="line.102"></a>
+<span class="sourceLineNo">103</span>  protected static final String 
QUOTA_POLICY_COLUMN =<a name="line.103"></a>
+<span class="sourceLineNo">104</span>      Bytes.toString(QUOTA_FAMILY_USAGE) 
+ ":" + Bytes.toString(QUOTA_QUALIFIER_POLICY);<a name="line.104"></a>
+<span class="sourceLineNo">105</span>  protected static final byte[] 
QUOTA_USER_ROW_KEY_PREFIX = Bytes.toBytes("u.");<a name="line.105"></a>
+<span class="sourceLineNo">106</span>  protected static final byte[] 
QUOTA_TABLE_ROW_KEY_PREFIX = Bytes.toBytes("t.");<a name="line.106"></a>
+<span class="sourceLineNo">107</span>  protected static final byte[] 
QUOTA_NAMESPACE_ROW_KEY_PREFIX = Bytes.toBytes("n.");<a name="line.107"></a>
+<span class="sourceLineNo">108</span><a name="line.108"></a>
+<span class="sourceLineNo">109</span>  /* 
=========================================================================<a 
name="line.109"></a>
+<span class="sourceLineNo">110</span>   *  Quota "settings" helpers<a 
name="line.110"></a>
+<span class="sourceLineNo">111</span>   */<a name="line.111"></a>
+<span class="sourceLineNo">112</span>  public static Quotas 
getTableQuota(final Connection connection, final TableName table)<a 
name="line.112"></a>
+<span class="sourceLineNo">113</span>      throws IOException {<a 
name="line.113"></a>
+<span class="sourceLineNo">114</span>    return getQuotas(connection, 
getTableRowKey(table));<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>  public static Quotas 
getNamespaceQuota(final Connection connection, final String namespace)<a 
name="line.117"></a>
+<span class="sourceLineNo">118</span>      throws IOException {<a 
name="line.118"></a>
+<span class="sourceLineNo">119</span>    return getQuotas(connection, 
getNamespaceRowKey(namespace));<a name="line.119"></a>
+<span class="sourceLineNo">120</span>  }<a name="line.120"></a>
+<span class="sourceLineNo">121</span><a name="line.121"></a>
+<span class="sourceLineNo">122</span>  public static Quotas getUserQuota(final 
Connection connection, final String user)<a name="line.122"></a>
+<span class="sourceLineNo">123</span>      throws IOException {<a 
name="line.123"></a>
+<span class="sourceLineNo">124</span>    return getQuotas(connection, 
getUserRowKey(user));<a name="line.124"></a>
+<span class="sourceLineNo">125</span>  }<a name="line.125"></a>
+<span class="sourceLineNo">126</span><a name="line.126"></a>
+<span class="sourceLineNo">127</span>  public static Quotas getUserQuota(final 
Connection connection, final String user,<a name="line.127"></a>
+<span class="sourceLineNo">128</span>      final TableName table) throws 
IOException {<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    return getQuotas(connection, 
getUserRowKey(user), getSettingsQualifierForUserTable(table));<a 
name="line.129"></a>
+<span class="sourceLineNo">130</span>  }<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span>  public static Quotas getUserQuota(final 
Connection connection, final String user,<a name="line.132"></a>
+<span class="sourceLineNo">133</span>      final String namespace) throws 
IOException {<a name="line.133"></a>
+<span class="sourceLineNo">134</span>    return getQuotas(connection, 
getUserRowKey(user),<a name="line.134"></a>
+<span class="sourceLineNo">135</span>      
getSettingsQualifierForUserNamespace(namespace));<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>  private static Quotas getQuotas(final 
Connection connection, final byte[] rowKey)<a name="line.138"></a>
+<span class="sourceLineNo">139</span>      throws IOException {<a 
name="line.139"></a>
+<span class="sourceLineNo">140</span>    return getQuotas(connection, rowKey, 
QUOTA_QUALIFIER_SETTINGS);<a name="line.140"></a>
+<span class="sourceLineNo">141</span>  }<a name="line.141"></a>
+<span class="sourceLineNo">142</span><a name="line.142"></a>
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Connection connection, final byte[] rowKey,<a name="line.143"></a>
+<span class="sourceLineNo">144</span>      final byte[] qualifier) throws 
IOException {<a name="line.144"></a>
+<span class="sourceLineNo">145</span>    Get get = new Get(rowKey);<a 
name="line.145"></a>
+<span class="sourceLineNo">146</span>    get.addColumn(QUOTA_FAMILY_INFO, 
qualifier);<a name="line.146"></a>
+<span class="sourceLineNo">147</span>    Result result = doGet(connection, 
get);<a name="line.147"></a>
+<span class="sourceLineNo">148</span>    if (result.isEmpty()) {<a 
name="line.148"></a>
+<span class="sourceLineNo">149</span>      return null;<a name="line.149"></a>
+<span class="sourceLineNo">150</span>    }<a name="line.150"></a>
+<span class="sourceLineNo">151</span>    return 
quotasFromData(result.getValue(QUOTA_FAMILY_INFO, qualifier));<a 
name="line.151"></a>
+<span class="sourceLineNo">152</span>  }<a name="line.152"></a>
+<span class="sourceLineNo">153</span><a name="line.153"></a>
+<span class="sourceLineNo">154</span>  public static Get 
makeGetForTableQuotas(final TableName table) {<a name="line.154"></a>
+<span class="sourceLineNo">155</span>    Get get = new 
Get(getTableRowKey(table));<a name="line.155"></a>
+<span class="sourceLineNo">156</span>    get.addFamily(QUOTA_FAMILY_INFO);<a 
name="line.156"></a>
+<span class="sourceLineNo">157</span>    return get;<a name="line.157"></a>
+<span class="sourceLineNo">158</span>  }<a name="line.158"></a>
+<span class="sourceLineNo">159</span><a name="line.159"></a>
+<span class="sourceLineNo">160</span>  public static Get 
makeGetForNamespaceQuotas(final String namespace) {<a name="line.160"></a>
+<span class="sourceLineNo">161</span>    Get get = new 
Get(getNamespaceRowKey(namespace));<a name="line.161"></a>
+<span class="sourceLineNo">162</span>    get.addFamily(QUOTA_FAMILY_INFO);<a 
name="line.162"></a>
+<span class="sourceLineNo">163</span>    return get;<a name="line.163"></a>
+<span class="sourceLineNo">164</span>  }<a name="line.164"></a>
+<span class="sourceLineNo">165</span><a name="line.165"></a>
+<span class="sourceLineNo">166</span>  public static Get 
makeGetForUserQuotas(final String user, final Iterable&lt;TableName&gt; 
tables,<a name="line.166"></a>
+<span class="sourceLineNo">167</span>      final Iterable&lt;String&gt; 
namespaces) {<a name="line.167"></a>
+<span class="sourceLineNo">168</span>    Get get = new 
Get(getUserRowKey(user));<a name="line.168"></a>
+<span class="sourceLineNo">169</span>    get.addColumn(QUOTA_FAMILY_INFO, 
QUOTA_QUALIFIER_SETTINGS);<a name="line.169"></a>
+<span class="sourceLineNo">170</span>    for (final TableName table: tables) 
{<a name="line.170"></a>
+<span class="sourceLineNo">171</span>      get.addColumn(QUOTA_FAMILY_INFO, 
getSettingsQualifierForUserTable(table));<a name="line.171"></a>
+<span class="sourceLineNo">172</span>    }<a name="line.172"></a>
+<span class="sourceLineNo">173</span>    for (final String ns: namespaces) {<a 
name="line.173"></a>
+<span class="sourceLineNo">174</span>      get.addColumn(QUOTA_FAMILY_INFO, 
getSettingsQualifierForUserNamespace(ns));<a name="line.174"></a>
+<span class="sourceLineNo">175</span>    }<a name="line.175"></a>
+<span class="sourceLineNo">176</span>    return get;<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>  public static Scan makeScan(final 
QuotaFilter filter) {<a name="line.179"></a>
+<span class="sourceLineNo">180</span>    Scan scan = new Scan();<a 
name="line.180"></a>
+<span class="sourceLineNo">181</span>    scan.addFamily(QUOTA_FAMILY_INFO);<a 
name="line.181"></a>
+<span class="sourceLineNo">182</span>    if (filter != null &amp;&amp; 
!filter.isNull()) {<a name="line.182"></a>
+<span class="sourceLineNo">183</span>      
scan.setFilter(makeFilter(filter));<a name="line.183"></a>
+<span class="sourceLineNo">184</span>    }<a name="line.184"></a>
+<span class="sourceLineNo">185</span>    return scan;<a name="line.185"></a>
+<span class="sourceLineNo">186</span>  }<a name="line.186"></a>
+<span class="sourceLineNo">187</span><a name="line.187"></a>
+<span class="sourceLineNo">188</span>  /**<a name="line.188"></a>
+<span class="sourceLineNo">189</span>   * converts quotafilter to 
serializeable filterlists.<a name="line.189"></a>
+<span class="sourceLineNo">190</span>   */<a name="line.190"></a>
+<span class="sourceLineNo">191</span>  public static Filter makeFilter(final 
QuotaFilter filter) {<a name="line.191"></a>
+<span class="sourceLineNo">192</span>    FilterList filterList = new 
FilterList(FilterList.Operator.MUST_PASS_ALL);<a name="line.192"></a>
+<span class="sourceLineNo">193</span>    if 
(!Strings.isEmpty(filter.getUserFilter())) {<a name="line.193"></a>
+<span class="sourceLineNo">194</span>      FilterList userFilters = new 
FilterList(FilterList.Operator.MUST_PASS_ONE);<a name="line.194"></a>
+<span class="sourceLineNo">195</span>      boolean hasFilter = false;<a 
name="line.195"></a>
+<span class="sourceLineNo">196</span><a name="line.196"></a>
+<span class="sourceLineNo">197</span>      if 
(!Strings.isEmpty(filter.getNamespaceFilter())) {<a name="line.197"></a>
+<span class="sourceLineNo">198</span>        FilterList nsFilters = new 
FilterList(FilterList.Operator.MUST_PASS_ALL);<a name="line.198"></a>
+<span class="sourceLineNo">199</span>        nsFilters.addFilter(new 
RowFilter(CompareFilter.CompareOp.EQUAL,<a name="line.199"></a>
+<span class="sourceLineNo">200</span>            new 
RegexStringComparator(getUserRowKeyRegex(filter.getUserFilter()), 0)));<a 
name="line.200"></a>
+<span class="sourceLineNo">201</span>        nsFilters.addFilter(new 
QualifierFilter(CompareFilter.CompareOp.EQUAL,<a name="line.201"></a>
+<span class="sourceLineNo">202</span>            new RegexStringComparator(<a 
name="line.202"></a>
+<span class="sourceLineNo">203</span>              
getSettingsQualifierRegexForUserNamespace(filter.getNamespaceFilter()), 0)));<a 
name="line.203"></a>
+<span class="sourceLineNo">204</span>        
userFilters.addFilter(nsFilters);<a name="line.204"></a>
+<span class="sourceLineNo">205</span>        hasFilter = true;<a 
name="line.205"></a>
+<span class="sourceLineNo">206</span>      }<a name="line.206"></a>
+<span class="sourceLineNo">207</span>      if 
(!Strings.isEmpty(filter.getTableFilter())) {<a name="line.207"></a>
+<span class="sourceLineNo">208</span>        FilterList tableFilters = new 
FilterList(FilterList.Operator.MUST_PASS_ALL);<a name="line.208"></a>
+<span class="sourceLineNo">209</span>        tableFilters.addFilter(new 
RowFilter(CompareFilter.CompareOp.EQUAL,<a name="line.209"></a>
+<span class="sourceLineNo">210</span>            new 
RegexStringComparator(getUserRowKeyRegex(filter.getUserFilter()), 0)));<a 
name="line.210"></a>
+<span class="sourceLineNo">211</span>        tableFilters.addFilter(new 
QualifierFilter(CompareFilter.CompareOp.EQUAL,<a name="line.211"></a>
+<span class="sourceLineNo">212</span>            new RegexStringComparator(<a 
name="line.212"></a>
+<span class="sourceLineNo">213</span>              
getSettingsQualifierRegexForUserTable(filter.getTableFilter()), 0)));<a 
name="line.213"></a>
+<span class="sourceLineNo">214</span>        
userFilters.addFilter(tableFilters);<a name="line.214"></a>
+<span class="sourceLineNo">215</span>        hasFilter = true;<a 
name="line.215"></a>
+<span class="sourceLineNo">216</span>      }<a name="line.216"></a>
+<span class="sourceLineNo">217</span>      if (!hasFilter) {<a 
name="line.217"></a>
+<span class="sourceLineNo">218</span>        userFilters.addFilter(new 
RowFilter(CompareFilter.CompareOp.EQUAL,<a name="line.218"></a>
+<span class="sourceLineNo">219</span>            new 
RegexStringComparator(getUserRowKeyRegex(filter.getUserFilter()), 0)));<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>      
filterList.addFilter(userFilters);<a name="line.222"></a>
+<span class="sourceLineNo">223</span>    } else if 
(!Strings.isEmpty(filter.getTableFilter())) {<a name="line.223"></a>
+<span class="sourceLineNo">224</span>      filterList.addFilter(new 
RowFilter(CompareFilter.CompareOp.EQUAL,<a name="line.224"></a>
+<span class="sourceLineNo">225</span>          new 
RegexStringComparator(getTableRowKeyRegex(filter.getTableFilter()), 0)));<a 
name="line.225"></a>
+<span class="sourceLineNo">226</span>    } else if 
(!Strings.isEmpty(filter.getNamespaceFilter())) {<a name="line.226"></a>
+<span class="sourceLineNo">227</span>      filterList.addFilter(new 
RowFilter(CompareFilter.CompareOp.EQUAL,<a name="line.227"></a>
+<span class="sourceLineNo">228</span>          new 
RegexStringComparator(getNamespaceRowKeyRegex(filter.getNamespaceFilter()), 
0)));<a name="line.228"></a>
+<span class="sourceLineNo">229</span>    }<a name="line.229"></a>
+<span class="sourceLineNo">230</span>    return filterList;<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>
+<span class="sourceLineNo">233</span>  /**<a name="line.233"></a>
+<span class="sourceLineNo">234</span>   * Creates a {@link Scan} which returns 
only quota snapshots from the quota table.<a name="line.234"></a>
+<span class="sourceLineNo">235</span>   */<a name="line.235"></a>
+<span class="sourceLineNo">236</span>  public static Scan 
makeQuotaSnapshotScan() {<a name="line.236"></a>
+<span class="sourceLineNo">237</span>    return 
makeQuotaSnapshotScanForTable(null);<a name="line.237"></a>
+<span class="sourceLineNo">238</span>  }<a name="line.238"></a>
+<span class="sourceLineNo">239</span><a name="line.239"></a>
+<span class="sourceLineNo">240</span>  /**<a name="line.240"></a>
+<span class="sourceLineNo">241</span>   * Fetches all {@link 
SpaceQuotaSnapshot} objects from the {@code hbase:quota} table.<a 
name="line.241"></a>
+<span class="sourceLineNo">242</span>   *<a name="line.242"></a>
+<span class="sourceLineNo">243</span>   * @param conn The HBase connection<a 
name="line.243"></a>
+<span class="sourceLineNo">244</span>   * @return A map of table names and 
their computed snapshot.<a name="line.244"></a>
+<span class="sourceLineNo">245</span>   */<a name="line.245"></a>
+<span class="sourceLineNo">246</span>  public static 
Map&lt;TableName,SpaceQuotaSnapshot&gt; getSnapshots(Connection conn) throws 
IOException {<a name="line.246"></a>
+<span class="sourceLineNo">247</span>    
Map&lt;TableName,SpaceQuotaSnapshot&gt; snapshots = new HashMap&lt;&gt;();<a 
name="line.247"></a>
+<span class="sourceLineNo">248</span>    try (Table quotaTable = 
conn.getTable(QUOTA_TABLE_NAME);<a name="line.248"></a>
+<span class="sourceLineNo">249</span>        ResultScanner rs = 
quotaTable.getScanner(makeQuotaSnapshotScan())) {<a name="line.249"></a>
+<span class="sourceLineNo">250</span>      for (Result r : rs) {<a 
name="line.250"></a>
+<span class="sourceLineNo">251</span>        extractQuotaSnapshot(r, 
snapshots);<a name="line.251"></a>
+<span class="sourceLineNo">252</span>      }<a name="line.252"></a>
+<span class="sourceLineNo">253</span>    }<a name="line.253"></a>
+<span class="sourceLineNo">254</span>    return snapshots;<a 
name="line.254"></a>
+<span class="sourceLineNo">255</span>  }<a name="line.255"></a>
+<span class="sourceLineNo">256</span><a name="line.256"></a>
+<span class="sourceLineNo">257</span>  /**<a name="line.257"></a>
+<span class="sourceLineNo">258</span>   * Creates a {@link Scan} which returns 
only {@link SpaceQuotaSnapshot} from the quota table for a<a 
name="line.258"></a>
+<span class="sourceLineNo">259</span>   * specific table.<a 
name="line.259"></a>
+<span class="sourceLineNo">260</span>   * @param tn Optionally, a table name 
to limit the scan's rowkey space. Can be null.<a name="line.260"></a>
+<span class="sourceLineNo">261</span>   */<a name="line.261"></a>
+<span class="sourceLineNo">262</span>  public static Scan 
makeQuotaSnapshotScanForTable(TableName tn) {<a name="line.262"></a>
+<span class="sourceLineNo">263</span>    Scan s = new Scan();<a 
name="line.263"></a>
+<span class="sourceLineNo">264</span>    // Limit to "u:v" column<a 
name="line.264"></a>
+<span class="sourceLineNo">265</span>    s.addColumn(QUOTA_FAMILY_USAGE, 
QUOTA_QUALIFIER_POLICY);<a name="line.265"></a>
+<span class="sourceLineNo">266</span>    if (null == tn) {<a 
name="line.266"></a>
+<span class="sourceLineNo">267</span>      
s.setRowPrefixFilter(QUOTA_TABLE_ROW_KEY_PREFIX);<a name="line.267"></a>
+<span class="sourceLineNo">268</span>    } else {<a name="line.268"></a>
+<span class="sourceLineNo">269</span>      byte[] row = getTableRowKey(tn);<a 
name="line.269"></a>
+<span class="sourceLineNo">270</span>      // Limit rowspace to the "t:" 
prefix<a name="line.270"></a>
+<span class="sourceLineNo">271</span>      s.withStartRow(row, 
true).withStopRow(row, true);<a name="line.271"></a>
+<span class="sourceLineNo">272</span>    }<a name="line.272"></a>
+<span class="sourceLineNo">273</span>    return s;<a name="line.273"></a>
+<span class="sourceLineNo">274</span>  }<a name="line.274"></a>
+<span class="sourceLineNo">275</span><a name="line.275"></a>
+<span class="sourceLineNo">276</span>  /**<a name="line.276"></a>
+<span class="sourceLineNo">277</span>   * Extracts the {@link 
SpaceViolationPolicy} and {@link TableName} f

<TRUNCATED>

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