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| Design |
| <!----></a></div><div class="nav-item"><a href="/Download/" class="nav-link">Download</a></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">Community</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/Community/About.html" class="nav-link">About</a></li><li class="dropdown-item"><!----> <a href="https://cwiki.apache.org/confluence/display/iotdb" class="nav-link external"> |
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| <!----></a></li><li class="dropdown-item"><!----> <a href="/Community/Community-Project Committers.html" class="nav-link">People</a></li><li class="dropdown-item"><!----> <a href="/Community/Community-Powered By.html" class="nav-link">Powered By</a></li><li class="dropdown-item"><!----> <a href="/Community/Materials.html" class="nav-link">Resources</a></li><li class="dropdown-item"><!----> <a href="/Community/Feedback.html" class="nav-link">Feedback</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">Development</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/Development/VoteRelease.html" class="nav-link">How to vote</a></li><li class="dropdown-item"><!----> <a href="/Development/HowToCommit.html" class="nav-link">How to Commit</a></li><li class="dropdown-item"><!----> <a href="/Development/HowToJoin.html" class="nav-link">Become a Contributor</a></li><li class="dropdown-item"><!----> <a href="/Development/Committer.html" class="nav-link">Become a Committer</a></li><li class="dropdown-item"><!----> <a href="/Development/ContributeGuide.html" class="nav-link">ContributeGuide</a></li><li class="dropdown-item"><!----> <a href="/Development/HowtoContributeCode.html" class="nav-link">How to Contribute Code</a></li><li class="dropdown-item"><!----> <a href="/Development/format-changelist.html" class="nav-link">Changelist of TsFile</a></li><li class="dropdown-item"><!----> <a href="/Development/rpc-changelist.html" class="nav-link">Changelist of RPC</a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">ASF</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="http://www.apache.org/" class="nav-link external"> |
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| <!----></a></li></ul></div></div><div class="nav-item"><div class="dropdown-wrapper"><a class="dropdown-title"><span class="title">Languages</span> <span class="arrow right"></span></a> <ul class="nav-dropdown" style="display:none;"><li class="dropdown-item"><!----> <a href="/UserGuide/Master/Ecosystem Integration/Flink TsFile.html" class="nav-link">English</a></li><li class="dropdown-item"><!----> <a href="/zh/UserGuide/Master/Ecosystem Integration/Flink TsFile.html" class="nav-link">简体中文</a></li></ul></div></div> <a href="https://github.com/apache/iotdb.git" target="_blank" rel="noopener noreferrer" class="repo-link"> |
| GitHub |
| <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav> <ul class="sidebar-links"><li><section class="sidebar-group depth-0"><p class="sidebar-heading"><span>IoTDB User Guide (latest)</span> <!----></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>IoTDB Introduction</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Quick Start</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Data Concept</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Syntax Conventions</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>API</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Operate Metadata</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Write and Delete Data</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Query Data</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Process Data</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Administration Management</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Maintenance Tools</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>Ecosystem Integration</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/UserGuide/Master/Ecosystem Integration/Grafana Plugin.html" class="sidebar-link">Grafana Plugin</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/Grafana Connector.html" class="sidebar-link">Grafana Connector (Not Recommended)</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/Zeppelin-IoTDB.html" class="sidebar-link">Zeppelin-IoTDB</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/DBeaver.html" class="sidebar-link">DBeaver-IoTDB</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/MapReduce TsFile.html" class="sidebar-link">MapReduce TsFile</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/Spark TsFile.html" class="sidebar-link">Spark TsFile</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/Spark IoTDB.html" class="sidebar-link">Spark IoTDB</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/Hive TsFile.html" class="sidebar-link">Hive TsFile</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/Flink IoTDB.html" class="sidebar-link">Flink IoTDB</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/Flink TsFile.html" class="active sidebar-link">Flink TsFile</a></li><li><a href="/UserGuide/Master/Ecosystem Integration/Writing Data on HDFS.html" class="sidebar-link">Writing Data on HDFS</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Cluster</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>UDF Library</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>Reference</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <main class="page"> <div class="content content__default"><h2 id="flink-tsfile-connector"><a href="#flink-tsfile-connector" class="header-anchor">#</a> Flink-TsFile-Connector</h2> <h3 id="about-flink-tsfile-connector"><a href="#about-flink-tsfile-connector" class="header-anchor">#</a> About Flink-TsFile-Connector</h3> <p>Flink-TsFile-Connector implements the support of Flink for external data sources of Tsfile type. |
| This enables users to read and write Tsfile by Flink via DataStream/DataSet API.</p> <p>With this connector, you can</p> <ul><li>load a single TsFile or multiple TsFiles(only for DataSet), from either the local file system or hdfs, into Flink</li> <li>load all files in a specific directory, from either the local file system or hdfs, into Flink</li></ul> <h3 id="quick-start"><a href="#quick-start" class="header-anchor">#</a> Quick Start</h3> <h4 id="tsfileinputformat-example"><a href="#tsfileinputformat-example" class="header-anchor">#</a> TsFileInputFormat Example</h4> <ol><li>create TsFileInputFormat with default RowRowRecordParser.</li></ol> <div class="language-java line-numbers-mode"><pre class="language-java"><code><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> filedNames <span class="token operator">=</span> <span class="token punctuation">{</span> |
| <span class="token class-name">QueryConstant</span><span class="token punctuation">.</span>RESERVED_TIME<span class="token punctuation">,</span> |
| <span class="token string">"device_1.sensor_1"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_1.sensor_2"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_1.sensor_3"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_2.sensor_1"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_2.sensor_2"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_2.sensor_3"</span> |
| <span class="token punctuation">}</span><span class="token punctuation">;</span> |
| <span class="token class-name">TypeInformation</span><span class="token punctuation">[</span><span class="token punctuation">]</span> typeInformations <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">TypeInformation</span><span class="token punctuation">[</span><span class="token punctuation">]</span> <span class="token punctuation">{</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>FLOAT<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>INT<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>INT<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>FLOAT<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>INT<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>INT |
| <span class="token punctuation">}</span><span class="token punctuation">;</span> |
| <span class="token class-name">List</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">Path</span><span class="token punctuation">></span></span> paths <span class="token operator">=</span> <span class="token class-name">Arrays</span><span class="token punctuation">.</span><span class="token function">stream</span><span class="token punctuation">(</span>filedNames<span class="token punctuation">)</span> |
| <span class="token punctuation">.</span><span class="token function">filter</span><span class="token punctuation">(</span>s <span class="token operator">-></span> <span class="token operator">!</span>s<span class="token punctuation">.</span><span class="token function">equals</span><span class="token punctuation">(</span><span class="token class-name">QueryConstant</span><span class="token punctuation">.</span>RESERVED_TIME<span class="token punctuation">)</span><span class="token punctuation">)</span> |
| <span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span><span class="token class-name">Path</span><span class="token operator">::</span><span class="token keyword">new</span><span class="token punctuation">)</span> |
| <span class="token punctuation">.</span><span class="token function">collect</span><span class="token punctuation">(</span><span class="token class-name">Collectors</span><span class="token punctuation">.</span><span class="token function">toList</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">RowTypeInfo</span> rowTypeInfo <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">RowTypeInfo</span><span class="token punctuation">(</span>typeInformations<span class="token punctuation">,</span> filedNames<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">QueryExpression</span> queryExpression <span class="token operator">=</span> <span class="token class-name">QueryExpression</span><span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span>paths<span class="token punctuation">,</span> <span class="token keyword">null</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">RowRowRecordParser</span> parser <span class="token operator">=</span> <span class="token class-name">RowRowRecordParser</span><span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span>rowTypeInfo<span class="token punctuation">,</span> queryExpression<span class="token punctuation">.</span><span class="token function">getSelectedSeries</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">TsFileInputFormat</span> inputFormat <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">TsFileInputFormat</span><span class="token generics"><span class="token punctuation"><</span><span class="token punctuation">></span></span><span class="token punctuation">(</span>queryExpression<span class="token punctuation">,</span> parser<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br></div></div><ol start="2"><li>Read data from the input format and print to stdout:</li></ol> <p>DataStream:</p> <div class="language-java line-numbers-mode"><pre class="language-java"><code><span class="token class-name">StreamExecutionEnvironment</span> senv <span class="token operator">=</span> <span class="token class-name">StreamExecutionEnvironment</span><span class="token punctuation">.</span><span class="token function">getExecutionEnvironment</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| inputFormat<span class="token punctuation">.</span><span class="token function">setFilePath</span><span class="token punctuation">(</span><span class="token string">"source.tsfile"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">DataStream</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">Row</span><span class="token punctuation">></span></span> source <span class="token operator">=</span> senv<span class="token punctuation">.</span><span class="token function">createInput</span><span class="token punctuation">(</span>inputFormat<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">DataStream</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">String</span><span class="token punctuation">></span></span> rowString <span class="token operator">=</span> source<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span><span class="token class-name">Row</span><span class="token operator">::</span><span class="token function">toString</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">Iterator</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">String</span><span class="token punctuation">></span></span> result <span class="token operator">=</span> <span class="token class-name">DataStreamUtils</span><span class="token punctuation">.</span><span class="token function">collect</span><span class="token punctuation">(</span>rowString<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">while</span> <span class="token punctuation">(</span>result<span class="token punctuation">.</span><span class="token function">hasNext</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| <span class="token class-name">System</span><span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span>result<span class="token punctuation">.</span><span class="token function">next</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br></div></div><p>DataSet:</p> <div class="language-java line-numbers-mode"><pre class="language-java"><code><span class="token class-name">ExecutionEnvironment</span> env <span class="token operator">=</span> <span class="token class-name">ExecutionEnvironment</span><span class="token punctuation">.</span><span class="token function">getExecutionEnvironment</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| inputFormat<span class="token punctuation">.</span><span class="token function">setFilePath</span><span class="token punctuation">(</span><span class="token string">"source.tsfile"</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">DataSet</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">Row</span><span class="token punctuation">></span></span> source <span class="token operator">=</span> env<span class="token punctuation">.</span><span class="token function">createInput</span><span class="token punctuation">(</span>inputFormat<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">List</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">String</span><span class="token punctuation">></span></span> result <span class="token operator">=</span> source<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span><span class="token class-name">Row</span><span class="token operator">::</span><span class="token function">toString</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">collect</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token class-name">String</span> s <span class="token operator">:</span> result<span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| <span class="token class-name">System</span><span class="token punctuation">.</span>out<span class="token punctuation">.</span><span class="token function">println</span><span class="token punctuation">(</span>s<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><h4 id="example-of-tsrecordoutputformat"><a href="#example-of-tsrecordoutputformat" class="header-anchor">#</a> Example of TSRecordOutputFormat</h4> <ol><li>create TSRecordOutputFormat with default RowTSRecordConverter.</li></ol> <div class="language-java line-numbers-mode"><pre class="language-java"><code><span class="token class-name">String</span><span class="token punctuation">[</span><span class="token punctuation">]</span> filedNames <span class="token operator">=</span> <span class="token punctuation">{</span> |
| <span class="token class-name">QueryConstant</span><span class="token punctuation">.</span>RESERVED_TIME<span class="token punctuation">,</span> |
| <span class="token string">"device_1.sensor_1"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_1.sensor_2"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_1.sensor_3"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_2.sensor_1"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_2.sensor_2"</span><span class="token punctuation">,</span> |
| <span class="token string">"device_2.sensor_3"</span> |
| <span class="token punctuation">}</span><span class="token punctuation">;</span> |
| <span class="token class-name">TypeInformation</span><span class="token punctuation">[</span><span class="token punctuation">]</span> typeInformations <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">TypeInformation</span><span class="token punctuation">[</span><span class="token punctuation">]</span> <span class="token punctuation">{</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> |
| <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG |
| <span class="token punctuation">}</span><span class="token punctuation">;</span> |
| <span class="token class-name">RowTypeInfo</span> rowTypeInfo <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">RowTypeInfo</span><span class="token punctuation">(</span>typeInformations<span class="token punctuation">,</span> filedNames<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">Schema</span> schema <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Schema</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| schema<span class="token punctuation">.</span><span class="token function">extendTemplate</span><span class="token punctuation">(</span><span class="token string">"template"</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">MeasurementSchema</span><span class="token punctuation">(</span><span class="token string">"sensor_1"</span><span class="token punctuation">,</span> <span class="token class-name">TSDataType</span><span class="token punctuation">.</span>INT64<span class="token punctuation">,</span> <span class="token class-name">TSEncoding</span><span class="token punctuation">.</span>TS_2DIFF<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| schema<span class="token punctuation">.</span><span class="token function">extendTemplate</span><span class="token punctuation">(</span><span class="token string">"template"</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">MeasurementSchema</span><span class="token punctuation">(</span><span class="token string">"sensor_2"</span><span class="token punctuation">,</span> <span class="token class-name">TSDataType</span><span class="token punctuation">.</span>INT64<span class="token punctuation">,</span> <span class="token class-name">TSEncoding</span><span class="token punctuation">.</span>TS_2DIFF<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| schema<span class="token punctuation">.</span><span class="token function">extendTemplate</span><span class="token punctuation">(</span><span class="token string">"template"</span><span class="token punctuation">,</span> <span class="token keyword">new</span> <span class="token class-name">MeasurementSchema</span><span class="token punctuation">(</span><span class="token string">"sensor_3"</span><span class="token punctuation">,</span> <span class="token class-name">TSDataType</span><span class="token punctuation">.</span>INT64<span class="token punctuation">,</span> <span class="token class-name">TSEncoding</span><span class="token punctuation">.</span>TS_2DIFF<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">RowTSRecordConverter</span> converter <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">RowTSRecordConverter</span><span class="token punctuation">(</span>rowTypeInfo<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">TSRecordOutputFormat</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">Row</span><span class="token punctuation">></span></span> outputFormat <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">TSRecordOutputFormat</span><span class="token generics"><span class="token punctuation"><</span><span class="token punctuation">></span></span><span class="token punctuation">(</span>schema<span class="token punctuation">,</span> converter<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br></div></div><ol start="2"><li>write data via the output format:</li></ol> <p>DataStream:</p> <div class="language-java line-numbers-mode"><pre class="language-java"><code><span class="token class-name">StreamExecutionEnvironment</span> senv <span class="token operator">=</span> <span class="token class-name">StreamExecutionEnvironment</span><span class="token punctuation">.</span><span class="token function">getExecutionEnvironment</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| senv<span class="token punctuation">.</span><span class="token function">setParallelism</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">List</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">Tuple7</span><span class="token punctuation">></span></span> data <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">ArrayList</span><span class="token generics"><span class="token punctuation"><</span><span class="token punctuation">></span></span><span class="token punctuation">(</span><span class="token number">7</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">1L</span><span class="token punctuation">,</span> <span class="token number">2L</span><span class="token punctuation">,</span> <span class="token number">3L</span><span class="token punctuation">,</span> <span class="token number">4L</span><span class="token punctuation">,</span> <span class="token number">5L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">2L</span><span class="token punctuation">,</span> <span class="token number">3L</span><span class="token punctuation">,</span> <span class="token number">4L</span><span class="token punctuation">,</span> <span class="token number">5L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">3L</span><span class="token punctuation">,</span> <span class="token number">4L</span><span class="token punctuation">,</span> <span class="token number">5L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">4L</span><span class="token punctuation">,</span> <span class="token number">5L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">,</span> <span class="token number">10L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">,</span> <span class="token number">10L</span><span class="token punctuation">,</span> <span class="token number">11L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">,</span> <span class="token number">10L</span><span class="token punctuation">,</span> <span class="token number">11L</span><span class="token punctuation">,</span> <span class="token number">12L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">,</span> <span class="token number">10L</span><span class="token punctuation">,</span> <span class="token number">11L</span><span class="token punctuation">,</span> <span class="token number">12L</span><span class="token punctuation">,</span> <span class="token number">13L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| outputFormat<span class="token punctuation">.</span><span class="token function">setOutputFilePath</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name"><span class="token namespace">org<span class="token punctuation">.</span>apache<span class="token punctuation">.</span>flink<span class="token punctuation">.</span>core<span class="token punctuation">.</span>fs<span class="token punctuation">.</span></span>Path</span><span class="token punctuation">(</span>path<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">DataStream</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">Tuple7</span><span class="token punctuation">></span></span> source <span class="token operator">=</span> senv<span class="token punctuation">.</span><span class="token function">fromCollection</span><span class="token punctuation">(</span> |
| data<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span><span class="token function">TUPLE</span><span class="token punctuation">(</span><span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| source<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span>t <span class="token operator">-></span> <span class="token punctuation">{</span> |
| <span class="token class-name">Row</span> row <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Row</span><span class="token punctuation">(</span><span class="token number">7</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">int</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> <span class="token number">7</span><span class="token punctuation">;</span> i<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| row<span class="token punctuation">.</span><span class="token function">setField</span><span class="token punctuation">(</span>i<span class="token punctuation">,</span> t<span class="token punctuation">.</span><span class="token function">getField</span><span class="token punctuation">(</span>i<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span> |
| <span class="token keyword">return</span> row<span class="token punctuation">;</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">returns</span><span class="token punctuation">(</span>rowTypeInfo<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">writeUsingOutputFormat</span><span class="token punctuation">(</span>outputFormat<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| senv<span class="token punctuation">.</span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br></div></div><p>DataSet:</p> <div class="language-java line-numbers-mode"><pre class="language-java"><code><span class="token class-name">ExecutionEnvironment</span> env <span class="token operator">=</span> <span class="token class-name">ExecutionEnvironment</span><span class="token punctuation">.</span><span class="token function">getExecutionEnvironment</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| env<span class="token punctuation">.</span><span class="token function">setParallelism</span><span class="token punctuation">(</span><span class="token number">1</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">List</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">Tuple7</span><span class="token punctuation">></span></span> data <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">ArrayList</span><span class="token generics"><span class="token punctuation"><</span><span class="token punctuation">></span></span><span class="token punctuation">(</span><span class="token number">7</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">1L</span><span class="token punctuation">,</span> <span class="token number">2L</span><span class="token punctuation">,</span> <span class="token number">3L</span><span class="token punctuation">,</span> <span class="token number">4L</span><span class="token punctuation">,</span> <span class="token number">5L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">2L</span><span class="token punctuation">,</span> <span class="token number">3L</span><span class="token punctuation">,</span> <span class="token number">4L</span><span class="token punctuation">,</span> <span class="token number">5L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">3L</span><span class="token punctuation">,</span> <span class="token number">4L</span><span class="token punctuation">,</span> <span class="token number">5L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">4L</span><span class="token punctuation">,</span> <span class="token number">5L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">,</span> <span class="token number">10L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">6L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">,</span> <span class="token number">10L</span><span class="token punctuation">,</span> <span class="token number">11L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">7L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">,</span> <span class="token number">10L</span><span class="token punctuation">,</span> <span class="token number">11L</span><span class="token punctuation">,</span> <span class="token number">12L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| data<span class="token punctuation">.</span><span class="token function">add</span><span class="token punctuation">(</span><span class="token keyword">new</span> <span class="token class-name">Tuple7</span><span class="token punctuation">(</span><span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">8L</span><span class="token punctuation">,</span> <span class="token number">9L</span><span class="token punctuation">,</span> <span class="token number">10L</span><span class="token punctuation">,</span> <span class="token number">11L</span><span class="token punctuation">,</span> <span class="token number">12L</span><span class="token punctuation">,</span> <span class="token number">13L</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token class-name">DataSet</span><span class="token generics"><span class="token punctuation"><</span><span class="token class-name">Tuple7</span><span class="token punctuation">></span></span> source <span class="token operator">=</span> env<span class="token punctuation">.</span><span class="token function">fromCollection</span><span class="token punctuation">(</span> |
| data<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span><span class="token function">TUPLE</span><span class="token punctuation">(</span><span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">,</span> <span class="token class-name">Types</span><span class="token punctuation">.</span>LONG<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| source<span class="token punctuation">.</span><span class="token function">map</span><span class="token punctuation">(</span>t <span class="token operator">-></span> <span class="token punctuation">{</span> |
| <span class="token class-name">Row</span> row <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Row</span><span class="token punctuation">(</span><span class="token number">7</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">int</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator"><</span> <span class="token number">7</span><span class="token punctuation">;</span> i<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span> |
| row<span class="token punctuation">.</span><span class="token function">setField</span><span class="token punctuation">(</span>i<span class="token punctuation">,</span> t<span class="token punctuation">.</span><span class="token function">getField</span><span class="token punctuation">(</span>i<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| <span class="token punctuation">}</span> |
| <span class="token keyword">return</span> row<span class="token punctuation">;</span> |
| <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">returns</span><span class="token punctuation">(</span>rowTypeInfo<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">write</span><span class="token punctuation">(</span>outputFormat<span class="token punctuation">,</span> path<span class="token punctuation">)</span><span class="token punctuation">;</span> |
| env<span class="token punctuation">.</span><span class="token function">execute</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> |
| </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br></div></div></div> <div class="page-nav"><p class="inner"><span class="prev"> |
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