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00032 #ifndef _dodsfilter_h
00033 #define _dodsfilter_h
00034
00035 #include <string>
00036
00037 #ifndef _das_h
00038 #include "DAS.h"
00039 #endif
00040
00041 #ifndef _dds_h
00042 #include "DDS.h"
00043 #endif
00044
00045 #ifndef constraint_evaluator_h
00046 #include "ConstraintEvaluator.h"
00047 #endif
00048
00049 #define FILE_METHODS 1
00050
00051 namespace libdap
00052 {
00053
00080 class DODSFilter
00081 {
00082 public:
00084 enum Response {
00085 Unknown_Response,
00086 DAS_Response,
00087 DDS_Response,
00088 DataDDS_Response,
00089 DDX_Response,
00090 DataDDX_Response,
00091 BLOB_Response,
00092 Version_Response
00093 };
00094
00095 protected:
00096 bool d_comp;
00097 bool d_bad_options;
00098 bool d_conditional_request;
00099
00100 string d_program_name;
00101 string d_dataset;
00102 string d_ce;
00103 string d_cgi_ver;
00104 string d_anc_dir;
00105 string d_anc_file;
00106 string d_cache_dir;
00107 string d_url;
00108
00109 Response d_response;
00110 string d_action;
00111
00112 int d_timeout;
00113
00114 time_t d_anc_das_lmt;
00115 time_t d_anc_dds_lmt;
00116 time_t d_if_modified_since;
00117
00118 void initialize();
00119 void initialize(int argc, char *argv[]);
00120
00121 virtual int process_options(int argc, char *argv[]);
00122
00123 public:
00131 DODSFilter()
00132 {
00133 initialize();
00134 }
00135 DODSFilter(int argc, char *argv[]) throw(Error);
00136
00137 virtual ~DODSFilter();
00138
00139 virtual bool is_conditional() const;
00140
00141 virtual string get_cgi_version() const;
00142 virtual void set_cgi_version(string version);
00143
00144 virtual string get_ce() const;
00145 virtual void set_ce(string _ce);
00146
00147 virtual string get_dataset_name() const;
00148 virtual void set_dataset_name(const string _dataset);
00149
00150 virtual string get_URL() const;
00151 virtual void set_URL(const string &url);
00152
00153 virtual string get_dataset_version() const;
00154
00155 virtual Response get_response() const;
00156 virtual string get_action() const;
00157 virtual void set_response(const string &r);
00158
00159 virtual time_t get_dataset_last_modified_time() const;
00160
00161 virtual time_t get_das_last_modified_time(const string &anc_location = "") const;
00162
00163 virtual time_t get_dds_last_modified_time(const string &anc_location = "") const;
00164
00165 virtual time_t get_data_last_modified_time(const string &anc_location = "") const;
00166
00167 virtual time_t get_request_if_modified_since() const;
00168
00169 virtual string get_cache_dir() const;
00170
00171 void set_timeout(int timeout = 0);
00172
00173 int get_timeout() const;
00174
00175 virtual void establish_timeout(ostream &stream) const;
00176
00177 virtual void print_usage() const;
00178
00179 virtual void send_version_info() const;
00180
00181 virtual void send_das(DAS &das, const string &anc_location = "",
00182 bool with_mime_headers = true) const;
00183 virtual void send_das(ostream &out, DAS &das, const string &anc_location = "",
00184 bool with_mime_headers = true) const;
00185
00186 virtual void send_dds(DDS &dds, ConstraintEvaluator &eval,
00187 bool constrained = false,
00188 const string &anc_location = "",
00189 bool with_mime_headers = true) const;
00190 virtual void send_dds(ostream &out, DDS &dds, ConstraintEvaluator &eval,
00191 bool constrained = false,
00192 const string &anc_location = "",
00193 bool with_mime_headers = true) const;
00194
00195 virtual void functional_constraint(BaseType &var, DDS &dds,
00196 ConstraintEvaluator &eval, ostream &out) const;
00197
00198 virtual void dataset_constraint(DDS &dds, ConstraintEvaluator &eval,
00199 ostream &out, bool ce_eval = true) const;
00200 virtual void dataset_constraint_ddx(DDS & dds, ConstraintEvaluator & eval,
00201 ostream &out, const string &boundary,
00202 const string &start,
00203 bool ce_eval = true) const;
00204
00205 virtual void send_data(DDS &dds, ConstraintEvaluator &eval,
00206 ostream &data_stream,
00207 const string &anc_location = "",
00208 bool with_mime_headers = true) const;
00209 virtual void send_ddx(DDS &dds, ConstraintEvaluator &eval, ostream &out,
00210 bool with_mime_headers = true) const;
00211 virtual void send_data_ddx(DDS &dds, ConstraintEvaluator &eval,
00212 ostream &data_stream, const string &start,
00213 const string &boundary,
00214 const string &anc_location = "",
00215 bool with_mime_headers = true) const;
00216
00217 #if FILE_METHODS
00218 virtual void establish_timeout(FILE *stream) const;
00219 virtual void send_das(FILE *out, DAS &das, const string &anc_location = "",
00220 bool with_mime_headers = true) const;
00221 virtual void send_dds(FILE *out, DDS &dds, ConstraintEvaluator &eval,
00222 bool constrained = false,
00223 const string &anc_location = "",
00224 bool with_mime_headers = true) const;
00225
00226 virtual void functional_constraint(BaseType &var, DDS &dds,
00227 ConstraintEvaluator &eval, FILE *out) const;
00228
00229 virtual void dataset_constraint(DDS &dds, ConstraintEvaluator &eval,
00230 FILE *out, bool ce_eval = true) const;
00231 virtual void send_data(DDS &dds, ConstraintEvaluator &eval,
00232 FILE *data_stream,
00233 const string &anc_location = "",
00234 bool with_mime_headers = true) const;
00235 virtual void send_ddx(DDS &dds, ConstraintEvaluator &eval, FILE *out,
00236 bool with_mime_headers = true) const;
00237 #endif
00238 };
00239
00240 }
00241
00242 #endif // _dodsfilter_h