| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> |
| <meta http-equiv="X-UA-Compatible" content="IE=9"/> |
| <meta name="generator" content="Doxygen 1.8.5"/> |
| <title>Apache Mesos: 3rdparty/stout/include/stout/flags/fetch.hpp Source File</title> |
| <link href="tabs.css" rel="stylesheet" type="text/css"/> |
| <script type="text/javascript" src="jquery.js"></script> |
| <script type="text/javascript" src="dynsections.js"></script> |
| <link href="doxygen.css" rel="stylesheet" type="text/css" /> |
| </head> |
| <body> |
| <div id="top"><!-- do not remove this div, it is closed by doxygen! --> |
| <div id="titlearea"> |
| <table cellspacing="0" cellpadding="0"> |
| <tbody> |
| <tr style="height: 56px;"> |
| <td style="padding-left: 0.5em;"> |
| <div id="projectname">Apache Mesos |
| </div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <!-- end header part --> |
| <!-- Generated by Doxygen 1.8.5 --> |
| <div id="navrow1" class="tabs"> |
| <ul class="tablist"> |
| <li><a href="index.html"><span>Main Page</span></a></li> |
| <li><a href="pages.html"><span>Related Pages</span></a></li> |
| <li><a href="namespaces.html"><span>Namespaces</span></a></li> |
| <li><a href="annotated.html"><span>Classes</span></a></li> |
| <li class="current"><a href="files.html"><span>Files</span></a></li> |
| <li><a href="examples.html"><span>Examples</span></a></li> |
| </ul> |
| </div> |
| <div id="navrow2" class="tabs2"> |
| <ul class="tablist"> |
| <li><a href="files.html"><span>File List</span></a></li> |
| <li><a href="globals.html"><span>File Members</span></a></li> |
| </ul> |
| </div> |
| <div id="nav-path" class="navpath"> |
| <ul> |
| <li class="navelem"><a class="el" href="dir_8cab8f464681f7cc51cee77e79a434cd.html">3rdparty</a></li><li class="navelem"><a class="el" href="dir_aa547de1d719d14adccfca1dfb1735b3.html">stout</a></li><li class="navelem"><a class="el" href="dir_1a1b923d951dd999d43396870333fc33.html">include</a></li><li class="navelem"><a class="el" href="dir_dbd52553d038069c1ed93e3477ea333d.html">stout</a></li><li class="navelem"><a class="el" href="dir_230307e57c5539b503664ee0a2412f20.html">flags</a></li> </ul> |
| </div> |
| </div><!-- top --> |
| <div class="header"> |
| <div class="headertitle"> |
| <div class="title">fetch.hpp</div> </div> |
| </div><!--header--> |
| <div class="contents"> |
| <a href="fetch_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// Licensed under the Apache License, Version 2.0 (the "License");</span></div> |
| <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">// you may not use this file except in compliance with the License.</span></div> |
| <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// You may obtain a copy of the License at</span></div> |
| <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">//</span></div> |
| <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// Unless required by applicable law or agreed to in writing, software</span></div> |
| <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// distributed under the License is distributed on an "AS IS" BASIS,</span></div> |
| <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div> |
| <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">// See the License for the specific language governing permissions and</span></div> |
| <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// limitations under the License.</span></div> |
| <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> </div> |
| <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="preprocessor">#ifndef __STOUT_FLAGS_FETCH_HPP__</span></div> |
| <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="preprocessor"></span><span class="preprocessor">#define __STOUT_FLAGS_FETCH_HPP__</span></div> |
| <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="preprocessor"></span></div> |
| <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="preprocessor">#include <sstream></span> <span class="comment">// For istringstream.</span></div> |
| <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="preprocessor">#include <string></span></div> |
| <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> </div> |
| <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="preprocessor">#include <<a class="code" href="duration_8hpp.html">stout/duration.hpp</a>></span></div> |
| <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="preprocessor">#include <<a class="code" href="error_8hpp.html">stout/error.hpp</a>></span></div> |
| <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="preprocessor">#include <<a class="code" href="json_8hpp.html">stout/json.hpp</a>></span></div> |
| <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="preprocessor">#include <<a class="code" href="path_8hpp.html">stout/path.hpp</a>></span></div> |
| <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#include <<a class="code" href="strings_8hpp.html">stout/strings.hpp</a>></span></div> |
| <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor">#include <<a class="code" href="try_8hpp.html">stout/try.hpp</a>></span></div> |
| <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> </div> |
| <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2flags_2parse_8hpp.html">stout/flags/parse.hpp</a>></span></div> |
| <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div> |
| <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <<a class="code" href="3rdparty_2stout_2include_2stout_2os_2read_8hpp.html">stout/os/read.hpp</a>></span></div> |
| <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> </div> |
| <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="keyword">namespace </span><a class="code" href="namespacemesos_1_1internal_1_1tests.html#af8289f648a916c3f66923867452c7b1b">flags</a> {</div> |
| <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> </div> |
| <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// Allow the value for a flag to be fetched/resolved from a URL such</span></div> |
| <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// as file://foo/bar/baz. Use template specialization to add a custom</span></div> |
| <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// fetcher for a given type, such as Path from <stout/path.hpp> Path</span></div> |
| <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">// has a custom fetcher so that it returns the path given rather than</span></div> |
| <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment">// the value read from that path.</span></div> |
| <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="keyword">template</span> <<span class="keyword">typename</span> T></div> |
| <div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="namespaceflags.html#a27c0d145bbd7c2870512fd59a50222d9"> 38</a></span> <a class="code" href="classTry.html">Try<T></a> <a class="code" href="namespaceflags.html#a27c0d145bbd7c2870512fd59a50222d9">fetch</a>(<span class="keyword">const</span> std::string& value)</div> |
| <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div> |
| <div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="comment">// If the flag value corresponds to a file indicated by file://</span></div> |
| <div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="comment">// fetch and then parse the contents of that file.</span></div> |
| <div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  <span class="comment">//</span></div> |
| <div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  <span class="comment">// TODO(cmaloney): Introduce fetching for things beyond just file://</span></div> |
| <div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="comment">// such as http:// as well!</span></div> |
| <div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">if</span> (<a class="code" href="namespacestrings.html#aa5513faacb213c7e097c0d43af43d9c7">strings::startsWith</a>(value, <span class="stringliteral">"file://"</span>)) {</div> |
| <div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keyword">const</span> std::string path = value.substr(7);</div> |
| <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div> |
| <div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <a class="code" href="classTry.html">Try<std::string></a> <a class="code" href="namespacemesos_1_1internal_1_1credentials.html#a137c93d60149616181a10e9f39986f7f">read</a> = <a class="code" href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">os::read</a>(path);</div> |
| <div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">if</span> (read.<a class="code" href="classTry.html#a0b98f95163b8a38daafd1651b043a276">isError</a>()) {</div> |
| <div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">return</span> <a class="code" href="classError.html">Error</a>(<span class="stringliteral">"Error reading file '"</span> + path + <span class="stringliteral">"': "</span> + read.<a class="code" href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">error</a>());</div> |
| <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  }</div> |
| <div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div> |
| <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="keywordflow">return</span> parse<T>(read.<a class="code" href="classTry.html#a7be0768038e0628632492edf6cc1515a">get</a>());</div> |
| <div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div> |
| <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div> |
| <div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">return</span> parse<T>(value);</div> |
| <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> }</div> |
| <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div> |
| <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div> |
| <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">template</span> <></div> |
| <div class="line"><a name="l00061"></a><span class="lineno"><a class="line" href="namespaceflags.html#a2b526cb7a619bb46ffae7507bdeb506c"> 61</a></span> <span class="keyword">inline</span> <a class="code" href="classTry.html">Try<Path></a> <a class="code" href="namespaceflags.html#a27c0d145bbd7c2870512fd59a50222d9">fetch</a>(<span class="keyword">const</span> std::string& value)</div> |
| <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> {</div> |
| <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// Explicitly skip fetching the file if this is for a Path flag!</span></div> |
| <div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  <span class="keywordflow">return</span> parse<Path>(value);</div> |
| <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> }</div> |
| <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div> |
| <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> } <span class="comment">// namespace flags {</span></div> |
| <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> </div> |
| <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#endif // __STOUT_FLAGS_FETCH_HPP__</span></div> |
| <div class="ttc" id="classError_html"><div class="ttname"><a href="classError.html">Error</a></div><div class="ttdef"><b>Definition:</b> errorbase.hpp:35</div></div> |
| <div class="ttc" id="classTry_html"><div class="ttname"><a href="classTry.html">Try</a></div><div class="ttdef"><b>Definition:</b> try.hpp:34</div></div> |
| <div class="ttc" id="3rdparty_2stout_2include_2stout_2flags_2parse_8hpp_html"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2flags_2parse_8hpp.html">parse.hpp</a></div></div> |
| <div class="ttc" id="json_8hpp_html"><div class="ttname"><a href="json_8hpp.html">json.hpp</a></div></div> |
| <div class="ttc" id="3rdparty_2stout_2include_2stout_2os_2read_8hpp_html"><div class="ttname"><a href="3rdparty_2stout_2include_2stout_2os_2read_8hpp.html">read.hpp</a></div></div> |
| <div class="ttc" id="namespaceflags_html_a27c0d145bbd7c2870512fd59a50222d9"><div class="ttname"><a href="namespaceflags.html#a27c0d145bbd7c2870512fd59a50222d9">flags::fetch</a></div><div class="ttdeci">Try< T > fetch(const std::string &value)</div><div class="ttdef"><b>Definition:</b> fetch.hpp:38</div></div> |
| <div class="ttc" id="duration_8hpp_html"><div class="ttname"><a href="duration_8hpp.html">duration.hpp</a></div></div> |
| <div class="ttc" id="path_8hpp_html"><div class="ttname"><a href="path_8hpp.html">path.hpp</a></div></div> |
| <div class="ttc" id="classTry_html_aec4a11ddd3c036e889d90b7eb6258ba7"><div class="ttname"><a href="classTry.html#aec4a11ddd3c036e889d90b7eb6258ba7">Try::error</a></div><div class="ttdeci">static Try error(const E &e)</div><div class="ttdef"><b>Definition:</b> try.hpp:42</div></div> |
| <div class="ttc" id="namespaceos_html_aa1d97ff0a93229e1fe6b33e3e2d567f7"><div class="ttname"><a href="namespaceos.html#aa1d97ff0a93229e1fe6b33e3e2d567f7">os::read</a></div><div class="ttdeci">Result< std::string > read(int_fd fd, size_t size)</div><div class="ttdef"><b>Definition:</b> read.hpp:50</div></div> |
| <div class="ttc" id="error_8hpp_html"><div class="ttname"><a href="error_8hpp.html">error.hpp</a></div></div> |
| <div class="ttc" id="classTry_html_a0b98f95163b8a38daafd1651b043a276"><div class="ttname"><a href="classTry.html#a0b98f95163b8a38daafd1651b043a276">Try::isError</a></div><div class="ttdeci">bool isError() const </div><div class="ttdef"><b>Definition:</b> try.hpp:71</div></div> |
| <div class="ttc" id="namespacemesos_1_1internal_1_1credentials_html_a137c93d60149616181a10e9f39986f7f"><div class="ttname"><a href="namespacemesos_1_1internal_1_1credentials.html#a137c93d60149616181a10e9f39986f7f">mesos::internal::credentials::read</a></div><div class="ttdeci">Result< Credentials > read(const Path &path)</div><div class="ttdef"><b>Definition:</b> credentials.hpp:35</div></div> |
| <div class="ttc" id="try_8hpp_html"><div class="ttname"><a href="try_8hpp.html">try.hpp</a></div></div> |
| <div class="ttc" id="namespacestrings_html_aa5513faacb213c7e097c0d43af43d9c7"><div class="ttname"><a href="namespacestrings.html#aa5513faacb213c7e097c0d43af43d9c7">strings::startsWith</a></div><div class="ttdeci">bool startsWith(const std::string &s, const std::string &prefix)</div><div class="ttdef"><b>Definition:</b> strings.hpp:368</div></div> |
| <div class="ttc" id="classTry_html_a7be0768038e0628632492edf6cc1515a"><div class="ttname"><a href="classTry.html#a7be0768038e0628632492edf6cc1515a">Try::get</a></div><div class="ttdeci">const T & get() const </div><div class="ttdef"><b>Definition:</b> try.hpp:73</div></div> |
| <div class="ttc" id="strings_8hpp_html"><div class="ttname"><a href="strings_8hpp.html">strings.hpp</a></div></div> |
| <div class="ttc" id="namespacemesos_1_1internal_1_1tests_html_af8289f648a916c3f66923867452c7b1b"><div class="ttname"><a href="namespacemesos_1_1internal_1_1tests.html#af8289f648a916c3f66923867452c7b1b">mesos::internal::tests::flags</a></div><div class="ttdeci">Flags flags</div></div> |
| </div><!-- fragment --></div><!-- contents --> |
| <!-- start footer part --> |
| <hr class="footer"/><address class="footer"><small> |
| Generated by  <a href="http://www.doxygen.org/index.html"> |
| <img class="footer" src="doxygen.png" alt="doxygen"/> |
| </a> 1.8.5 |
| </small></address> |
| </body> |
| </html> |
