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| <h2>D Tutorial</h2> |
| |
| <h3>Introduction</h3> |
| |
| <p> |
| All Apache Thrift tutorials require that you have: |
| |
| <ol> |
| <li>The Apache Thrift Compiler and Libraries, see <a href="/download">Download</a> and <a href="/docs/BuildingFromSource">Building from Source</a> for more details.</li> |
| <li>Generated the <a href="https://github.com/apache/thrift/blob/master/tutorial/tutorial.thrift">tutorial.thrift</a> and <a href="https://github.com/apache/thrift/blob/master/tutorial/shared.thrift">shared.thrift</a> files:<br> |
| <pre><code>thrift -r --gen d tutorial.thrift</code></pre> |
| </li> |
| <li>Followed all prerequisites listed below.</li> |
| </ol> |
| |
| <h3 id="prerequisites">Prerequisites</h3> |
| |
| <h3 id="client">Client</h3> |
| |
| <div class="highlight"><pre class="codehilite"><code><span class="n">module</span> <span class="n">client</span><span class="p">;</span> |
| |
| <span class="n">import</span> <span class="n">std</span><span class="p">.</span><span class="n">stdio</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">base</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">codegen</span><span class="p">.</span><span class="n">client</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">protocol</span><span class="p">.</span><span class="n">binary</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">transport</span><span class="p">.</span><span class="n">buffered</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">transport</span><span class="p">.</span><span class="n">socket</span><span class="p">;</span> |
| |
| <span class="n">import</span> <span class="n">tutorial</span><span class="p">.</span><span class="n">Calculator</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">tutorial</span><span class="p">.</span><span class="n">tutorial_types</span><span class="p">;</span> |
| |
| <span class="kt">void</span> <span class="nf">main</span><span class="p">()</span> <span class="p">{</span> |
| <span class="k">auto</span> <span class="n">socket</span> <span class="o">=</span> <span class="k">new</span> <span class="n">TSocket</span><span class="p">(</span><span class="s">"localhost"</span><span class="p">,</span> <span class="mi">9090</span><span class="p">);</span> |
| <span class="k">auto</span> <span class="n">transport</span> <span class="o">=</span> <span class="k">new</span> <span class="n">TBufferedTransport</span><span class="p">(</span><span class="n">socket</span><span class="p">);</span> |
| <span class="k">auto</span> <span class="n">protocol</span> <span class="o">=</span> <span class="n">tBinaryProtocol</span><span class="p">(</span><span class="n">transport</span><span class="p">);</span> |
| <span class="k">auto</span> <span class="n">client</span> <span class="o">=</span> <span class="n">tClient</span><span class="o">!</span><span class="n">Calculator</span><span class="p">(</span><span class="n">protocol</span><span class="p">);</span> |
| |
| <span class="n">transport</span><span class="p">.</span><span class="n">open</span><span class="p">();</span> |
| |
| <span class="n">client</span><span class="p">.</span><span class="n">ping</span><span class="p">();</span> |
| <span class="n">writeln</span><span class="p">(</span><span class="s">"ping()"</span><span class="p">);</span> |
| |
| <span class="kt">int</span> <span class="n">sum</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="n">add</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">);</span> |
| <span class="n">writefln</span><span class="p">(</span><span class="s">"1 + 1 = %s"</span><span class="p">,</span> <span class="n">sum</span><span class="p">);</span> |
| |
| <span class="k">auto</span> <span class="n">work</span> <span class="o">=</span> <span class="n">Work</span><span class="p">();</span> |
| <span class="n">work</span><span class="p">.</span><span class="n">op</span> <span class="o">=</span> <span class="n">Operation</span><span class="p">.</span><span class="n">DIVIDE</span><span class="p">;</span> |
| <span class="n">work</span><span class="p">.</span><span class="n">num1</span> <span class="o">=</span> <span class="mi">1</span><span class="p">;</span> |
| <span class="n">work</span><span class="p">.</span><span class="n">num2</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span> |
| <span class="k">try</span> <span class="p">{</span> |
| <span class="kt">int</span> <span class="n">quotient</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="n">calculate</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">work</span><span class="p">);</span> |
| <span class="n">writeln</span><span class="p">(</span><span class="s">"Whoa we can divide by 0"</span><span class="p">);</span> |
| <span class="p">}</span> <span class="k">catch</span> <span class="p">(</span><span class="n">InvalidOperation</span> <span class="n">io</span><span class="p">)</span> <span class="p">{</span> |
| <span class="n">writeln</span><span class="p">(</span><span class="s">"Invalid operation: "</span> <span class="o">~</span> <span class="n">io</span><span class="p">.</span><span class="n">why</span><span class="p">);</span> |
| <span class="p">}</span> |
| |
| <span class="n">work</span><span class="p">.</span><span class="n">op</span> <span class="o">=</span> <span class="n">Operation</span><span class="p">.</span><span class="n">SUBTRACT</span><span class="p">;</span> |
| <span class="n">work</span><span class="p">.</span><span class="n">num1</span> <span class="o">=</span> <span class="mi">15</span><span class="p">;</span> |
| <span class="n">work</span><span class="p">.</span><span class="n">num2</span> <span class="o">=</span> <span class="mi">10</span><span class="p">;</span> |
| <span class="kt">int</span> <span class="n">diff</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="n">calculate</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">work</span><span class="p">);</span> |
| <span class="n">writefln</span><span class="p">(</span><span class="s">"15 - 10 = %s"</span><span class="p">,</span> <span class="n">diff</span><span class="p">);</span> |
| |
| <span class="k">auto</span> <span class="n">log</span> <span class="o">=</span> <span class="n">client</span><span class="p">.</span><span class="n">getStruct</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span> |
| <span class="n">writefln</span><span class="p">(</span><span class="s">"Check log: %s"</span><span class="p">,</span> <span class="n">log</span><span class="p">.</span><span class="n">value</span><span class="p">);</span> |
| <span class="p">}</span> |
| </code></pre></div> |
| <p class="snippet_footer">This snippet was generated by Apache Thrift's <strong>source tree docs</strong>: |
| <a href="https://gitbox.apache.org/repos/asf?p=thrift.git;a=blob;hb=HEAD;f=tutorial/d/client.d">tutorial/d/client.d</a> |
| </p> |
| |
| <h3 id="server">Server</h3> |
| |
| <div class="highlight"><pre class="codehilite"><code><span class="n">module</span> <span class="n">server</span><span class="p">;</span> |
| |
| <span class="n">import</span> <span class="n">std</span><span class="p">.</span><span class="n">conv</span> <span class="o">:</span> <span class="n">to</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">std</span><span class="p">.</span><span class="n">stdio</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">codegen</span><span class="p">.</span><span class="n">processor</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">protocol</span><span class="p">.</span><span class="n">binary</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">server</span><span class="p">.</span><span class="n">simple</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">server</span><span class="p">.</span><span class="n">transport</span><span class="p">.</span><span class="n">socket</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">thrift</span><span class="p">.</span><span class="n">transport</span><span class="p">.</span><span class="n">buffered</span><span class="p">;</span> |
| |
| <span class="n">import</span> <span class="n">share</span><span class="p">.</span><span class="n">SharedService</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">share</span><span class="p">.</span><span class="n">shared_types</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">tutorial</span><span class="p">.</span><span class="n">Calculator</span><span class="p">;</span> |
| <span class="n">import</span> <span class="n">tutorial</span><span class="p">.</span><span class="n">tutorial_types</span><span class="p">;</span> |
| |
| <span class="cm">/** |
| * The actual implementation of the Calculator interface that is called by |
| * the server to answer the requests. |
| */</span> |
| <span class="k">class</span> <span class="nc">CalculatorHandler</span> <span class="o">:</span> <span class="n">Calculator</span> <span class="p">{</span> |
| <span class="kt">void</span> <span class="n">ping</span><span class="p">()</span> <span class="p">{</span> |
| <span class="n">writeln</span><span class="p">(</span><span class="s">"ping()"</span><span class="p">);</span> |
| <span class="p">}</span> |
| |
| <span class="kt">int</span> <span class="n">add</span><span class="p">(</span><span class="kt">int</span> <span class="n">n1</span><span class="p">,</span> <span class="kt">int</span> <span class="n">n2</span><span class="p">)</span> <span class="p">{</span> |
| <span class="n">writefln</span><span class="p">(</span><span class="s">"add(%s,%s)"</span><span class="p">,</span> <span class="n">n1</span><span class="p">,</span> <span class="n">n2</span><span class="p">);</span> |
| <span class="k">return</span> <span class="n">n1</span> <span class="o">+</span> <span class="n">n2</span><span class="p">;</span> |
| <span class="p">}</span> |
| |
| <span class="kt">int</span> <span class="n">calculate</span><span class="p">(</span><span class="kt">int</span> <span class="n">logid</span><span class="p">,</span> <span class="n">ref</span> <span class="k">const</span><span class="p">(</span><span class="n">Work</span><span class="p">)</span> <span class="n">work</span><span class="p">)</span> <span class="p">{</span> |
| <span class="n">writefln</span><span class="p">(</span><span class="s">"calculate(%s, {%s, %s, %s})"</span><span class="p">,</span> <span class="n">logid</span><span class="p">,</span> <span class="n">work</span><span class="p">.</span><span class="n">op</span><span class="p">,</span> <span class="n">work</span><span class="p">.</span><span class="n">num1</span><span class="p">,</span> <span class="n">work</span><span class="p">.</span><span class="n">num2</span><span class="p">);</span> |
| <span class="kt">int</span> <span class="n">val</span><span class="p">;</span> |
| |
| <span class="k">switch</span> <span class="p">(</span><span class="n">work</span><span class="p">.</span><span class="n">op</span><span class="p">)</span> <span class="p">{</span> |
| <span class="k">case</span> <span class="n">Operation</span><span class="p">.</span><span class="n">ADD</span><span class="p">:</span> |
| <span class="n">val</span> <span class="o">=</span> <span class="n">work</span><span class="p">.</span><span class="n">num1</span> <span class="o">+</span> <span class="n">work</span><span class="p">.</span><span class="n">num2</span><span class="p">;</span> |
| <span class="k">break</span><span class="p">;</span> |
| <span class="k">case</span> <span class="n">Operation</span><span class="p">.</span><span class="n">SUBTRACT</span><span class="p">:</span> |
| <span class="n">val</span> <span class="o">=</span> <span class="n">work</span><span class="p">.</span><span class="n">num1</span> <span class="o">-</span> <span class="n">work</span><span class="p">.</span><span class="n">num2</span><span class="p">;</span> |
| <span class="k">break</span><span class="p">;</span> |
| <span class="k">case</span> <span class="n">Operation</span><span class="p">.</span><span class="n">MULTIPLY</span><span class="p">:</span> |
| <span class="n">val</span> <span class="o">=</span> <span class="n">work</span><span class="p">.</span><span class="n">num1</span> <span class="o">*</span> <span class="n">work</span><span class="p">.</span><span class="n">num2</span><span class="p">;</span> |
| <span class="k">break</span><span class="p">;</span> |
| <span class="k">case</span> <span class="n">Operation</span><span class="p">.</span><span class="n">DIVIDE</span><span class="p">:</span> |
| <span class="k">if</span> <span class="p">(</span><span class="n">work</span><span class="p">.</span><span class="n">num2</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span> <span class="p">{</span> |
| <span class="k">auto</span> <span class="n">io</span> <span class="o">=</span> <span class="k">new</span> <span class="n">InvalidOperation</span><span class="p">();</span> |
| <span class="n">io</span><span class="p">.</span><span class="n">whatOp</span> <span class="o">=</span> <span class="n">work</span><span class="p">.</span><span class="n">op</span><span class="p">;</span> |
| <span class="n">io</span><span class="p">.</span><span class="n">why</span> <span class="o">=</span> <span class="s">"Cannot divide by 0"</span><span class="p">;</span> |
| <span class="k">throw</span> <span class="n">io</span><span class="p">;</span> |
| <span class="p">}</span> |
| <span class="n">val</span> <span class="o">=</span> <span class="n">work</span><span class="p">.</span><span class="n">num1</span> <span class="o">/</span> <span class="n">work</span><span class="p">.</span><span class="n">num2</span><span class="p">;</span> |
| <span class="k">break</span><span class="p">;</span> |
| <span class="nl">default:</span> |
| <span class="k">auto</span> <span class="n">io</span> <span class="o">=</span> <span class="k">new</span> <span class="n">InvalidOperation</span><span class="p">();</span> |
| <span class="n">io</span><span class="p">.</span><span class="n">whatOp</span> <span class="o">=</span> <span class="n">work</span><span class="p">.</span><span class="n">op</span><span class="p">;</span> |
| <span class="n">io</span><span class="p">.</span><span class="n">why</span> <span class="o">=</span> <span class="s">"Invalid Operation"</span><span class="p">;</span> |
| <span class="k">throw</span> <span class="n">io</span><span class="p">;</span> |
| <span class="p">}</span> |
| |
| <span class="k">auto</span> <span class="n">ss</span> <span class="o">=</span> <span class="n">SharedStruct</span><span class="p">();</span> |
| <span class="n">ss</span><span class="p">.</span><span class="n">key</span> <span class="o">=</span> <span class="n">logid</span><span class="p">;</span> |
| <span class="n">ss</span><span class="p">.</span><span class="n">value</span> <span class="o">=</span> <span class="n">to</span><span class="o">!</span><span class="n">string</span><span class="p">(</span><span class="n">val</span><span class="p">);</span> |
| <span class="n">log</span><span class="p">[</span><span class="n">logid</span><span class="p">]</span> <span class="o">=</span> <span class="n">ss</span><span class="p">;</span> |
| |
| <span class="k">return</span> <span class="n">val</span><span class="p">;</span> |
| <span class="p">}</span> |
| |
| <span class="n">SharedStruct</span> <span class="n">getStruct</span><span class="p">(</span><span class="kt">int</span> <span class="n">logid</span><span class="p">)</span> <span class="p">{</span> |
| <span class="n">writefln</span><span class="p">(</span><span class="s">"getStruct(%s)"</span><span class="p">,</span> <span class="n">logid</span><span class="p">);</span> |
| <span class="k">return</span> <span class="n">log</span><span class="p">[</span><span class="n">logid</span><span class="p">];</span> |
| <span class="p">}</span> |
| |
| <span class="kt">void</span> <span class="n">zip</span><span class="p">()</span> <span class="p">{</span> |
| <span class="n">writeln</span><span class="p">(</span><span class="s">"zip()"</span><span class="p">);</span> |
| <span class="p">}</span> |
| |
| <span class="nl">protected:</span> |
| <span class="n">SharedStruct</span><span class="p">[</span><span class="kt">int</span><span class="p">]</span> <span class="n">log</span><span class="p">;</span> |
| <span class="p">}</span> |
| |
| <span class="kt">void</span> <span class="nf">main</span><span class="p">()</span> <span class="p">{</span> |
| <span class="k">auto</span> <span class="n">protocolFactory</span> <span class="o">=</span> <span class="k">new</span> <span class="n">TBinaryProtocolFactory</span><span class="o">!</span><span class="p">();</span> |
| <span class="k">auto</span> <span class="n">processor</span> <span class="o">=</span> <span class="k">new</span> <span class="n">TServiceProcessor</span><span class="o">!</span><span class="n">Calculator</span><span class="p">(</span><span class="k">new</span> <span class="n">CalculatorHandler</span><span class="p">);</span> |
| <span class="k">auto</span> <span class="n">serverTransport</span> <span class="o">=</span> <span class="k">new</span> <span class="n">TServerSocket</span><span class="p">(</span><span class="mi">9090</span><span class="p">);</span> |
| <span class="k">auto</span> <span class="n">transportFactory</span> <span class="o">=</span> <span class="k">new</span> <span class="n">TBufferedTransportFactory</span><span class="p">;</span> |
| |
| <span class="k">auto</span> <span class="n">server</span> <span class="o">=</span> <span class="k">new</span> <span class="n">TSimpleServer</span><span class="p">(</span> |
| <span class="n">processor</span><span class="p">,</span> <span class="n">serverTransport</span><span class="p">,</span> <span class="n">transportFactory</span><span class="p">,</span> <span class="n">protocolFactory</span><span class="p">);</span> |
| |
| <span class="n">writeln</span><span class="p">(</span><span class="s">"Starting the server on port 9090..."</span><span class="p">);</span> |
| <span class="n">server</span><span class="p">.</span><span class="n">serve</span><span class="p">();</span> |
| <span class="n">writeln</span><span class="p">(</span><span class="s">"done."</span><span class="p">);</span> |
| <span class="p">}</span> |
| </code></pre></div> |
| <p class="snippet_footer">This snippet was generated by Apache Thrift's <strong>source tree docs</strong>: |
| <a href="https://gitbox.apache.org/repos/asf?p=thrift.git;a=blob;hb=HEAD;f=tutorial/d/server.d">tutorial/d/server.d</a> |
| </p> |
| |
| <h2 id="additional-information">Additional Information</h2> |
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