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<h1>AISMerge.cc</h1><a href="AISMerge_8cc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001
<a name="l00002"></a>00002 <span class="comment">// -*- mode: c++; c-basic-offset:4 -*-</span>
<a name="l00003"></a>00003
<a name="l00004"></a>00004 <span class="comment">// This file is part of libdap, A C++ implementation of the OPeNDAP Data</span>
<a name="l00005"></a>00005 <span class="comment">// Access Protocol.</span>
<a name="l00006"></a>00006
<a name="l00007"></a>00007 <span class="comment">// Copyright (c) 2003 OPeNDAP, Inc.</span>
<a name="l00008"></a>00008 <span class="comment">// Author: James Gallagher <jgallagher@opendap.org></span>
<a name="l00009"></a>00009 <span class="comment">// Dan Holloway <dan@hollywood.gso.uri.edu></span>
<a name="l00010"></a>00010 <span class="comment">// Reza Nekovei <reza@intcomm.net></span>
<a name="l00011"></a>00011 <span class="comment">//</span>
<a name="l00012"></a>00012 <span class="comment">// This library is free software; you can redistribute it and/or</span>
<a name="l00013"></a>00013 <span class="comment">// modify it under the terms of the GNU Lesser General Public</span>
<a name="l00014"></a>00014 <span class="comment">// License as published by the Free Software Foundation; either</span>
<a name="l00015"></a>00015 <span class="comment">// version 2.1 of the License, or (at your option) any later version.</span>
<a name="l00016"></a>00016 <span class="comment">//</span>
<a name="l00017"></a>00017 <span class="comment">// This library is distributed in the hope that it will be useful,</span>
<a name="l00018"></a>00018 <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<a name="l00019"></a>00019 <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</span>
<a name="l00020"></a>00020 <span class="comment">// Lesser General Public License for more details.</span>
<a name="l00021"></a>00021 <span class="comment">//</span>
<a name="l00022"></a>00022 <span class="comment">// You should have received a copy of the GNU Lesser General Public</span>
<a name="l00023"></a>00023 <span class="comment">// License along with this library; if not, write to the Free Software</span>
<a name="l00024"></a>00024 <span class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<a name="l00025"></a>00025 <span class="comment">//</span>
<a name="l00026"></a>00026 <span class="comment">// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.</span>
<a name="l00027"></a>00027
<a name="l00028"></a>00028 <span class="preprocessor">#include "<a class="code" href="config_8h.html">config.h</a>"</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include <cstdio></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <fstream></span>
<a name="l00032"></a>00032
<a name="l00033"></a>00033 <span class="preprocessor">#include "<a class="code" href="AISMerge_8h.html">AISMerge.h</a>"</span>
<a name="l00034"></a>00034 <span class="preprocessor">#include "<a class="code" href="AISExceptions_8h.html">AISExceptions.h</a>"</span>
<a name="l00035"></a>00035 <span class="preprocessor">#include "<a class="code" href="Response_8h.html">Response.h</a>"</span>
<a name="l00036"></a>00036
<a name="l00037"></a>00037 <span class="keyword">namespace </span>libdap {
<a name="l00038"></a>00038
<a name="l00051"></a><a class="code" href="classlibdap_1_1AISMerge.html#998f5e989f6707d1a4c40a1f6b22b8a7">00051</a> <a class="code" href="classlibdap_1_1Response.html">Response</a> *<a class="code" href="classlibdap_1_1AISMerge.html#998f5e989f6707d1a4c40a1f6b22b8a7">AISMerge::get_ais_resource</a>(<span class="keyword">const</span> <span class="keywordtype">string</span> & res)
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="keywordflow">if</span> (res.find(<span class="stringliteral">"http:"</span>) == 0
<a name="l00054"></a>00054 || res.find(<span class="stringliteral">"file:"</span>) == 0 || res.find(<span class="stringliteral">"https:"</span>) == 0) {
<a name="l00055"></a>00055 <span class="keywordflow">return</span> d_http.<a class="code" href="classlibdap_1_1HTTPConnect.html#5e3558838e245a96c9392b33ef4ba298">fetch_url</a>(res);
<a name="l00056"></a>00056 }
<a name="l00057"></a>00057 <span class="keywordflow">else</span> {
<a name="l00058"></a>00058 <span class="preprocessor">#if 0</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span> ifstream s(res);
<a name="l00060"></a>00060 <span class="preprocessor">#endif</span>
<a name="l00061"></a>00061 <span class="preprocessor"></span> FILE *s = fopen(res.c_str(), <span class="stringliteral">"r"</span>);
<a name="l00062"></a>00062 <span class="keywordflow">if</span> (!s)
<a name="l00063"></a>00063 <span class="keywordflow">throw</span> <a class="code" href="classlibdap_1_1Error.html" title="A class for error processing.">Error</a>(<span class="stringliteral">"I could not open local AIS resource '"</span>
<a name="l00064"></a>00064 + res + <span class="stringliteral">"'."</span>);
<a name="l00065"></a>00065 <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classlibdap_1_1Response.html">Response</a>(s, 0);
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067 }
<a name="l00068"></a>00068
<a name="l00082"></a><a class="code" href="classlibdap_1_1AISMerge.html#39cdca8a9bcf3834f826ebbb45694961">00082</a> <span class="keywordtype">void</span> <a class="code" href="classlibdap_1_1AISMerge.html#39cdca8a9bcf3834f826ebbb45694961">AISMerge::merge</a>(<span class="keyword">const</span> <span class="keywordtype">string</span> & primary, <a class="code" href="classlibdap_1_1DAS.html" title="Hold attribute data for a DAP2 dataset.">DAS</a> & das)
<a name="l00083"></a>00083 {
<a name="l00084"></a>00084 <span class="keywordflow">if</span> (!d_ais_db.<a class="code" href="classlibdap_1_1AISResources.html#c0dd664de9dabcecf3b63a217f27dfc2">has_resource</a>(primary))
<a name="l00085"></a>00085 <span class="keywordflow">return</span>;
<a name="l00086"></a>00086
<a name="l00087"></a>00087 <span class="keywordflow">try</span> {
<a name="l00088"></a>00088 <a class="code" href="namespacelibdap.html#5b62739b998b8aad79bfa8e5eafa3ca2">ResourceVector</a> rv = d_ais_db.<a class="code" href="classlibdap_1_1AISResources.html#35cb470d61a9e94a013520f45514f600">get_resource</a>(primary);
<a name="l00089"></a>00089
<a name="l00090"></a>00090 <span class="keywordflow">for</span> (<a class="code" href="namespacelibdap.html#8d78bc479487a8309d715ff0ecb1f770">ResourceVectorIter</a> i = rv.begin(); i != rv.end(); ++i) {
<a name="l00091"></a>00091 <a class="code" href="classlibdap_1_1Response.html">Response</a> *ais_resource = <a class="code" href="classlibdap_1_1AISMerge.html#998f5e989f6707d1a4c40a1f6b22b8a7">get_ais_resource</a>(i->get_url());
<a name="l00092"></a>00092 <span class="keywordflow">switch</span> (i->get_rule()) {
<a name="l00093"></a>00093 <span class="keywordflow">case</span> <a class="code" href="classlibdap_1_1Resource.html#d59dde2f5e40839ae61430f746faa9db6f45d9ce9f7ef1a86bf61f0b8a0a05e6">Resource::overwrite</a>:
<a name="l00094"></a>00094 das.<a class="code" href="classlibdap_1_1DAS.html#a84ac295a96a12f9f083a8210732f5a8" title="Reads a DAS from the named file.">parse</a>(ais_resource-><a class="code" href="classlibdap_1_1Response.html#5b4903bb627c5e6ccd4cd50712e1f0a1">get_stream</a>());
<a name="l00095"></a>00095 <span class="keywordflow">break</span>;
<a name="l00096"></a>00096 <span class="keywordflow">case</span> <a class="code" href="classlibdap_1_1Resource.html#d59dde2f5e40839ae61430f746faa9db57f09b056e2330d476992375e735a2d9">Resource::replace</a>:
<a name="l00097"></a>00097 das.<a class="code" href="classlibdap_1_1DAS.html#ee2b84645cf0825b20e0e68cca07bd2f" title="erase all attributes in this DAS">erase</a>();
<a name="l00098"></a>00098 das.<a class="code" href="classlibdap_1_1DAS.html#a84ac295a96a12f9f083a8210732f5a8" title="Reads a DAS from the named file.">parse</a>(ais_resource-><a class="code" href="classlibdap_1_1Response.html#5b4903bb627c5e6ccd4cd50712e1f0a1">get_stream</a>());
<a name="l00099"></a>00099 <span class="keywordflow">break</span>;
<a name="l00100"></a>00100 <span class="keywordflow">case</span> <a class="code" href="classlibdap_1_1Resource.html#d59dde2f5e40839ae61430f746faa9dbab6da0bd4132968a72d1fc30b00eac15">Resource::fallback</a>:
<a name="l00101"></a>00101 <span class="keywordflow">if</span> (das.<a class="code" href="classlibdap_1_1DAS.html#8a5f524429cf5c3838f187d9651da80e" title="Returns the number of attributes in the current attribute table.">get_size</a>() == 0)
<a name="l00102"></a>00102 das.<a class="code" href="classlibdap_1_1DAS.html#a84ac295a96a12f9f083a8210732f5a8" title="Reads a DAS from the named file.">parse</a>(ais_resource-><a class="code" href="classlibdap_1_1Response.html#5b4903bb627c5e6ccd4cd50712e1f0a1">get_stream</a>());
<a name="l00103"></a>00103 <span class="keywordflow">break</span>;
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105 <span class="keyword">delete</span> ais_resource;
<a name="l00106"></a>00106 ais_resource = 0;
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109 <span class="keywordflow">catch</span> (<a class="code" href="classlibdap_1_1NoSuchPrimaryResource.html">NoSuchPrimaryResource</a> & e) {
<a name="l00110"></a>00110 <span class="keywordflow">throw</span>
<a name="l00111"></a>00111 <a class="code" href="classlibdap_1_1InternalErr.html" title="A class for software fault reporting.">InternalErr</a>(<span class="keywordtype">string</span>
<a name="l00112"></a>00112 (<span class="stringliteral">"I caught a 'NoSuchPrimaryResource' exception, it said:\n"</span>)
<a name="l00113"></a>00113 + e.<a class="code" href="classlibdap_1_1Error.html#917fdf537b7dd7e587e9cf6dc7e4c687">get_error_message</a>() + string(<span class="stringliteral">"\n"</span>));
<a name="l00114"></a>00114 }
<a name="l00115"></a>00115 }
<a name="l00116"></a>00116
<a name="l00117"></a>00117 } <span class="comment">// namespace libdap</span>
</pre></div></div>
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