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| <pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a> |
| <span class="sourceLineNo">002</span> *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * or more contributor license agreements. See the NOTICE file<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * distributed with this work for additional information<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * regarding copyright ownership. The ASF licenses this file<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * to you under the Apache License, Version 2.0 (the<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * "License"); you may not use this file except in compliance<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * with the License. You may obtain a copy of the License at<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> *<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * Unless required by applicable law or agreed to in writing, software<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * See the License for the specific language governing permissions and<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * limitations under the License.<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> */<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>package org.apache.hadoop.hbase.rest;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Base64;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import javax.ws.rs.DELETE;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import javax.ws.rs.GET;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import javax.ws.rs.Produces;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import javax.ws.rs.QueryParam;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import javax.ws.rs.core.CacheControl;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import javax.ws.rs.core.Context;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import javax.ws.rs.core.Response;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import javax.ws.rs.core.Response.ResponseBuilder;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import javax.ws.rs.core.UriInfo;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span><a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.Cell;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.TableNotFoundException;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span>import org.slf4j.Logger;<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>import org.slf4j.LoggerFactory;<a name="line.40"></a> |
| <span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.rest.model.CellModel;<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.rest.model.CellSetModel;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.rest.model.RowModel;<a name="line.43"></a> |
| <span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.44"></a> |
| <span class="sourceLineNo">045</span><a name="line.45"></a> |
| <span class="sourceLineNo">046</span>@InterfaceAudience.Private<a name="line.46"></a> |
| <span class="sourceLineNo">047</span>public class ScannerInstanceResource extends ResourceBase {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private static final Logger LOG =<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> LoggerFactory.getLogger(ScannerInstanceResource.class);<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> static CacheControl cacheControl;<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> static {<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> cacheControl = new CacheControl();<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> cacheControl.setNoCache(true);<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> cacheControl.setNoTransform(false);<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> }<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> ResultGenerator generator = null;<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> String id = null;<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> int batch = 1;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public ScannerInstanceResource() throws IOException { }<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> public ScannerInstanceResource(String table, String id,<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> ResultGenerator generator, int batch) throws IOException {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> this.id = id;<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> this.generator = generator;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> this.batch = batch;<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> }<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> @GET<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> @Produces({MIMETYPE_XML, MIMETYPE_JSON, MIMETYPE_PROTOBUF,<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> MIMETYPE_PROTOBUF_IETF})<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public Response get(final @Context UriInfo uriInfo,<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> @QueryParam("n") int maxRows, final @QueryParam("c") int maxValues) {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> if (LOG.isTraceEnabled()) {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> LOG.trace("GET " + uriInfo.getAbsolutePath());<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> }<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> servlet.getMetrics().incrementRequests(1);<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> if (generator == null) {<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> servlet.getMetrics().incrementFailedGetRequests(1);<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> return Response.status(Response.Status.NOT_FOUND)<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> .type(MIMETYPE_TEXT).entity("Not found" + CRLF)<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> .build();<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> } else {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> // Updated the connection access time for each client next() call<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> RESTServlet.getInstance().getConnectionCache().updateConnectionAccessTime();<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> }<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> CellSetModel model = new CellSetModel();<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> RowModel rowModel = null;<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> byte[] rowKey = null;<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> int limit = batch;<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> if (maxValues > 0) {<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> limit = maxValues;<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> }<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> int count = limit;<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> do {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> Cell value = null;<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> try {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> value = generator.next();<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> } catch (IllegalStateException e) {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> if (ScannerResource.delete(id)) {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> servlet.getMetrics().incrementSucessfulDeleteRequests(1);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> } else {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> servlet.getMetrics().incrementFailedDeleteRequests(1);<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> servlet.getMetrics().incrementFailedGetRequests(1);<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> return Response.status(Response.Status.GONE)<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> .type(MIMETYPE_TEXT).entity("Gone" + CRLF)<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> .build();<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> } catch (IllegalArgumentException e) {<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> Throwable t = e.getCause();<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> if (t instanceof TableNotFoundException) {<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> return Response.status(Response.Status.NOT_FOUND)<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> .type(MIMETYPE_TEXT).entity("Not found" + CRLF)<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> .build();<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> }<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> throw e;<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> if (value == null) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> if (LOG.isTraceEnabled()) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> LOG.trace("generator exhausted");<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // respond with 204 (No Content) if an empty cell set would be<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // returned<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> if (count == limit) {<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> return Response.noContent().build();<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> }<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> break;<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> }<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> if (rowKey == null) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> rowKey = CellUtil.cloneRow(value);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> rowModel = new RowModel(rowKey);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> }<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> if (!Bytes.equals(CellUtil.cloneRow(value), rowKey)) {<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> // if maxRows was given as a query param, stop if we would exceed the<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> // specified number of rows<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> if (maxRows > 0) {<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> if (--maxRows == 0) {<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> generator.putBack(value);<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> break;<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> }<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> model.addRow(rowModel);<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> rowKey = CellUtil.cloneRow(value);<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> rowModel = new RowModel(rowKey);<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> rowModel.addCell(<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> new CellModel(CellUtil.cloneFamily(value), CellUtil.cloneQualifier(value),<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> value.getTimestamp(), CellUtil.cloneValue(value)));<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> } while (--count > 0);<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> model.addRow(rowModel);<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> ResponseBuilder response = Response.ok(model);<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> response.cacheControl(cacheControl);<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> servlet.getMetrics().incrementSucessfulGetRequests(1);<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> return response.build();<a name="line.156"></a> |
| <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> @GET<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> @Produces(MIMETYPE_BINARY)<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> public Response getBinary(final @Context UriInfo uriInfo) {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> if (LOG.isTraceEnabled()) {<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> LOG.trace("GET " + uriInfo.getAbsolutePath() + " as " +<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> MIMETYPE_BINARY);<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> servlet.getMetrics().incrementRequests(1);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> try {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> Cell value = generator.next();<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> if (value == null) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> if (LOG.isTraceEnabled()) {<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> LOG.trace("generator exhausted");<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> }<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> return Response.noContent().build();<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> }<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> ResponseBuilder response = Response.ok(CellUtil.cloneValue(value));<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> response.cacheControl(cacheControl);<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> response.header("X-Row", Bytes.toString(Base64.getEncoder().encode(<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> CellUtil.cloneRow(value))));<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> response.header("X-Column", Bytes.toString(Base64.getEncoder().encode(<a name="line.179"></a> |
| <span class="sourceLineNo">180</span> CellUtil.makeColumn(CellUtil.cloneFamily(value), CellUtil.cloneQualifier(value)))));<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> response.header("X-Timestamp", value.getTimestamp());<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> servlet.getMetrics().incrementSucessfulGetRequests(1);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> return response.build();<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> } catch (IllegalStateException e) {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> if (ScannerResource.delete(id)) {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> servlet.getMetrics().incrementSucessfulDeleteRequests(1);<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> } else {<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> servlet.getMetrics().incrementFailedDeleteRequests(1);<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> }<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> servlet.getMetrics().incrementFailedGetRequests(1);<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> return Response.status(Response.Status.GONE)<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> .type(MIMETYPE_TEXT).entity("Gone" + CRLF)<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> .build();<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span><a name="line.196"></a> |
| <span class="sourceLineNo">197</span> @DELETE<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> public Response delete(final @Context UriInfo uriInfo) {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> if (LOG.isTraceEnabled()) {<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> LOG.trace("DELETE " + uriInfo.getAbsolutePath());<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> servlet.getMetrics().incrementRequests(1);<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> if (servlet.isReadOnly()) {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> return Response.status(Response.Status.FORBIDDEN)<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> .type(MIMETYPE_TEXT).entity("Forbidden" + CRLF)<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> .build();<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> }<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> if (ScannerResource.delete(id)) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> servlet.getMetrics().incrementSucessfulDeleteRequests(1);<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> } else {<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> servlet.getMetrics().incrementFailedDeleteRequests(1);<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> }<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> return Response.ok().build();<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<a name="line.214"></a> |
| <span class="sourceLineNo">215</span>}<a name="line.215"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |