OPeNDAP Hyrax Back End Server (BES) Updated for version 3.8.3
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00001 // BESCatalogList.cc 00002 00003 // This file is part of bes, A C++ back-end server implementation framework 00004 // for the OPeNDAP Data Access Protocol. 00005 00006 // Copyright (c) 2004-2009 University Corporation for Atmospheric Research 00007 // Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu> 00008 // 00009 // This library is free software; you can redistribute it and/or 00010 // modify it under the terms of the GNU Lesser General Public 00011 // License as published by the Free Software Foundation; either 00012 // version 2.1 of the License, or (at your option) any later version. 00013 // 00014 // This library is distributed in the hope that it will be useful, 00015 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00016 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00017 // Lesser General Public License for more details. 00018 // 00019 // You should have received a copy of the GNU Lesser General Public 00020 // License along with this library; if not, write to the Free Software 00021 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00022 // 00023 // You can contact University Corporation for Atmospheric Research at 00024 // 3080 Center Green Drive, Boulder, CO 80301 00025 00026 // (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005 00027 // Please read the full copyright statement in the file COPYRIGHT_UCAR. 00028 // 00029 // Authors: 00030 // pwest Patrick West <pwest@ucar.edu> 00031 // jgarcia Jose Garcia <jgarcia@ucar.edu> 00032 00033 #include <sstream> 00034 00035 using std::ostringstream ; 00036 00037 #include "BESCatalogList.h" 00038 #include "BESCatalog.h" 00039 #include "BESInfo.h" 00040 #include "BESSyntaxUserError.h" 00041 #include "TheBESKeys.h" 00042 #include "BESDapNames.h" 00043 00044 BESCatalogList *BESCatalogList::_instance = 0 ; 00045 00050 BESCatalogList::BESCatalogList() 00051 { 00052 bool found = false ; 00053 string key = "BES.Catalog.Default" ; 00054 try 00055 { 00056 TheBESKeys::TheKeys()->get_value( key, _default_catalog, found ) ; 00057 } 00058 catch( BESError & ) 00059 { 00060 found = false ; 00061 } 00062 if( !found || _default_catalog.empty() ) 00063 { 00064 _default_catalog = BES_DEFAULT_CATALOG ; 00065 } 00066 } 00067 00072 BESCatalogList::~BESCatalogList() 00073 { 00074 catalog_iter i = _catalogs.begin() ; 00075 catalog_iter e = _catalogs.end() ; 00076 for( ; i != e; i++ ) 00077 { 00078 BESCatalog *catalog = (*i).second ; 00079 if( catalog ) delete catalog ; 00080 } 00081 } 00082 00090 bool 00091 BESCatalogList::add_catalog(BESCatalog * catalog) 00092 { 00093 bool result = false; 00094 if (find_catalog(catalog->get_catalog_name()) == 0) { 00095 #if 0 00096 _catalogs[catalog->get_catalog_name()] = catalog; 00097 #endif 00098 string name = catalog->get_catalog_name() ; 00099 std::pair<const std::string, BESCatalog*> p = 00100 std::make_pair( name, catalog ) ; 00101 result = _catalogs.insert(p).second; 00102 #if 0 00103 result = true; 00104 #endif 00105 } 00106 return result; 00107 } 00108 00119 bool 00120 BESCatalogList::ref_catalog( const string &catalog_name ) 00121 { 00122 bool ret = false ; 00123 BESCatalog *cat = 0 ; 00124 BESCatalogList::catalog_iter i ; 00125 i = _catalogs.find( catalog_name ) ; 00126 if( i != _catalogs.end() ) 00127 { 00128 cat = (*i).second; 00129 cat->reference_catalog() ; 00130 ret = true ; 00131 } 00132 return ret ; 00133 } 00134 00146 bool 00147 BESCatalogList::deref_catalog( const string &catalog_name ) 00148 { 00149 bool ret = false ; 00150 BESCatalog *cat = 0 ; 00151 BESCatalogList::catalog_iter i ; 00152 i = _catalogs.find( catalog_name ) ; 00153 if( i != _catalogs.end() ) 00154 { 00155 cat = (*i).second; 00156 if( !cat->dereference_catalog() ) 00157 { 00158 _catalogs.erase( i ) ; 00159 delete cat ; 00160 } 00161 ret = true ; 00162 } 00163 return ret ; 00164 } 00165 00172 BESCatalog * 00173 BESCatalogList::find_catalog( const string &catalog_name ) 00174 { 00175 BESCatalog *ret = 0 ; 00176 BESCatalogList::catalog_citer i ; 00177 i = _catalogs.find( catalog_name ) ; 00178 if( i != _catalogs.end() ) 00179 { 00180 ret = (*i).second; 00181 } 00182 return ret ; 00183 } 00184 00217 void 00218 BESCatalogList::show_catalog( const string &container, 00219 const string &coi, 00220 BESInfo *info ) 00221 { 00222 string cat_name ; 00223 string cat_node ; 00224 BESCatalog *catalog = 0 ; 00225 if( container.empty() ) 00226 { 00227 if( _catalogs.size() == 1 ) 00228 { 00229 catalog_citer i = _catalogs.begin() ; 00230 catalog = (*i).second ; 00231 catalog->show_catalog( container, coi, info ) ; 00232 } 00233 else 00234 { 00235 map<string,string> props ; 00236 props["name"] = "/" ; 00237 props["catalog"] = "/" ; 00238 ostringstream ssize ; 00239 ssize << _catalogs.size() ; 00240 props["count"] = ssize.str() ; 00241 props["node"] = "true" ; 00242 info->begin_tag( "dataset", &props ) ; 00243 00244 catalog_citer i = _catalogs.begin() ; 00245 catalog_citer e = _catalogs.end() ; 00246 for( ; i != e; i++ ) 00247 { 00248 BESCatalog *catalog = (*i).second ; 00249 catalog->show_catalog( "", SHOW_INFO_RESPONSE, info ) ; 00250 } 00251 00252 info->end_tag( "dataset" ) ; 00253 } 00254 } 00255 else 00256 { 00257 string::size_type colon = container.find( ":" ) ; 00258 if( colon == string::npos ) 00259 { 00260 // no colon, so if only one catalog then use it, otherwise use 00261 // the default name 00262 if( _catalogs.size() == 1 ) 00263 { 00264 catalog_citer i = _catalogs.begin() ; 00265 catalog = (*i).second ; 00266 cat_name = catalog->get_catalog_name() ; 00267 } 00268 else 00269 { 00270 cat_name = _default_catalog ; 00271 } 00272 cat_node = container ; 00273 } 00274 else 00275 { 00276 // there is a colon. The name is the part before the colon. 00277 cat_name = container.substr( 0, colon ) ; 00278 cat_node = container.substr( colon+1, container.length() - colon ) ; 00279 } 00280 00281 catalog = _catalogs[ cat_name ] ; 00282 if( catalog ) 00283 { 00284 catalog->show_catalog( cat_node, coi, info ) ; 00285 } 00286 else 00287 { 00288 string serr = "The catalog " + cat_name + " does not exist." ; 00289 throw BESSyntaxUserError( serr, __FILE__, __LINE__ ) ; 00290 } 00291 } 00292 } 00293 00296 BESCatalogList * 00297 BESCatalogList::TheCatalogList() 00298 { 00299 if( _instance == 0 ) 00300 { 00301 _instance = new BESCatalogList ; 00302 } 00303 return _instance ; 00304 } 00305 00313 void 00314 BESCatalogList::dump( ostream &strm ) const 00315 { 00316 strm << BESIndent::LMarg << "BESCatalogList::dump - (" 00317 << (void *)this << ")" << endl ; 00318 BESIndent::Indent() ; 00319 if( _catalogs.size() ) 00320 { 00321 strm << BESIndent::LMarg << "catalog list:" << endl ; 00322 BESIndent::Indent() ; 00323 catalog_citer i = _catalogs.begin() ; 00324 catalog_citer e = _catalogs.end() ; 00325 for( ; i != e; i++ ) 00326 { 00327 BESCatalog *catalog = (*i).second ; 00328 strm << BESIndent::LMarg << (*i).first << catalog << endl ; 00329 } 00330 BESIndent::UnIndent() ; 00331 } 00332 else 00333 { 00334 strm << BESIndent::LMarg << "catalog list: empty" << endl ; 00335 } 00336 BESIndent::UnIndent() ; 00337 } 00338