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| 1 | +<?xml version="1.0" encoding="UTF-8"?> |
| 2 | +<xsd:schema targetNamespace="http://www.unidata.ucar.edu/namespaces/thredds/queryCapability/v0.4" |
| 3 | + xmlns="http://www.unidata.ucar.edu/namespaces/thredds/queryCapability/v0.4" |
| 4 | + xmlns:xsd="http://www.w3.org/2001/XMLSchema" |
| 5 | + xmlns:cat="http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0" |
| 6 | + xmlns:xlink="http://www.w3.org/1999/xlink" |
| 7 | + elementFormDefault="qualified"> |
| 8 | + |
| 9 | + <xsd:import namespace="http://www.unidata.ucar.edu/namespaces/thredds/InvCatalog/v1.0" |
| 10 | + schemaLocation="https://schemas.unidata.ucar.edu/thredds/InvCatalog.1.0.xsd" /> |
| 11 | + |
| 12 | + <!-- |
| 13 | + The queryCapability element. |
| 14 | + --> |
| 15 | + <xsd:element name="queryCapability"> |
| 16 | + <xsd:complexType> |
| 17 | + <xsd:sequence> |
| 18 | + <xsd:element ref="query"/> |
| 19 | + <!-- Require a selectService, more allowed because of selector elements. --> |
| 20 | + <xsd:element ref="selectService"/> |
| 21 | + <xsd:element ref="selector" minOccurs="1" maxOccurs="unbounded"/> |
| 22 | + <xsd:element ref="userInterface" minOccurs="0" maxOccurs="unbounded"/> |
| 23 | + </xsd:sequence> |
| 24 | + <xsd:attribute name="version" type="xsd:token" default="0.4"/> |
| 25 | + <xsd:attribute name="name" type="xsd:token"/> |
| 26 | + </xsd:complexType> |
| 27 | + |
| 28 | + <!-- The id attribute of the selector element must be unique. --> |
| 29 | + <xsd:unique name="selectorID"> |
| 30 | + <xsd:selector xpath=".//selector"/> |
| 31 | + <xsd:field xpath="@id"/> |
| 32 | + </xsd:unique> |
| 33 | + </xsd:element> |
| 34 | + |
| 35 | + <!-- |
| 36 | + The query element. |
| 37 | + --> |
| 38 | + <xsd:element name="query"> |
| 39 | + <xsd:complexType> |
| 40 | + <xsd:attribute name="base" type="xsd:string" use="required"/> |
| 41 | + </xsd:complexType> |
| 42 | + </xsd:element> |
| 43 | + |
| 44 | + <!-- |
| 45 | + An abstract base class for all selector elements. |
| 46 | + --> |
| 47 | + <xsd:element name="selector" type="selectorType" abstract="true"/> |
| 48 | + <xsd:complexType name="selectorType"> |
| 49 | + <xsd:sequence> |
| 50 | + <xsd:element name="description" type="cat:documentationType" minOccurs="0" maxOccurs="1"/> |
| 51 | + </xsd:sequence> |
| 52 | + <xsd:attribute name="id" type="xsd:token" use="required"/> |
| 53 | + <xsd:attribute name="title" type="xsd:token" use="required"/> |
| 54 | + <xsd:attribute name="template" type="xsd:token"/> |
| 55 | + <xsd:attribute name="required" type="xsd:boolean" default="true"/> |
| 56 | + </xsd:complexType> |
| 57 | + |
| 58 | + <!-- |
| 59 | + compound selectors. |
| 60 | + --> |
| 61 | + <xsd:element name="compound" substitutionGroup="selector"> |
| 62 | + <xsd:complexType> |
| 63 | + <xsd:complexContent> |
| 64 | + <xsd:extension base="selectorType"> |
| 65 | + <xsd:sequence> |
| 66 | + <xsd:element ref="selector"/> |
| 67 | + <xsd:element name="or"/> |
| 68 | + <xsd:element ref="selector"/> |
| 69 | + </xsd:sequence> |
| 70 | + </xsd:extension> |
| 71 | + </xsd:complexContent> |
| 72 | + </xsd:complexType> |
| 73 | + </xsd:element> |
| 74 | + |
| 75 | + <xsd:simpleType name="operator"> |
| 76 | + <xsd:union memberTypes="xsd:token"> |
| 77 | + <xsd:simpleType> |
| 78 | + <xsd:restriction base="xsd:token"> |
| 79 | + <xsd:enumeration value="and"/> |
| 80 | + <xsd:enumeration value="or"/> |
| 81 | + </xsd:restriction> |
| 82 | + </xsd:simpleType> |
| 83 | + </xsd:union> |
| 84 | + </xsd:simpleType> |
| 85 | + |
| 86 | + <!-- |
| 87 | + The selectList element defines a list of choices from which a user can |
| 88 | + select one or more entries. |
| 89 | + --> |
| 90 | + <!-- When the construct method is set to "template", the |
| 91 | + template string must contain exactly one replacement string. |
| 92 | + The template string does not have to be related to the id |
| 93 | + of the selector, if one is given. No matter the actual |
| 94 | + replacement string used, it will be replaced with the value |
| 95 | + of the selection. When the "paramValue" construct method |
| 96 | + is chosen, the parameter name will be the value of the id |
| 97 | + or "item" if no id is given, i.e., "<id>=<value>" or |
| 98 | + "item=<value>". |
| 99 | + --> |
| 100 | + <xsd:element name="selectList" substitutionGroup="selector"> |
| 101 | + <xsd:complexType> |
| 102 | + <xsd:complexContent> |
| 103 | + <xsd:extension base="selectorType"> |
| 104 | + <xsd:sequence> |
| 105 | + <xsd:element ref="choice" minOccurs="1" maxOccurs="unbounded"/> |
| 106 | + </xsd:sequence> |
| 107 | + <xsd:attribute name="multiple" type="xsd:boolean" default="false"/> |
| 108 | + </xsd:extension> |
| 109 | + </xsd:complexContent> |
| 110 | + </xsd:complexType> |
| 111 | + </xsd:element> |
| 112 | + |
| 113 | + <xsd:element name="choice" type="choiceType"/> |
| 114 | + <xsd:complexType name="choiceType"> |
| 115 | + <xsd:sequence> |
| 116 | + <xsd:element name="description" type="cat:documentationType" minOccurs="0" maxOccurs="1"/> |
| 117 | + <xsd:element ref="selectList" minOccurs="0" maxOccurs="unbounded"/> |
| 118 | + </xsd:sequence> |
| 119 | + <xsd:attribute name="name" type="xsd:string" use="required"/> |
| 120 | + <xsd:attribute name="value" type="xsd:string" use="required"/> |
| 121 | + </xsd:complexType> |
| 122 | + |
| 123 | + <!-- |
| 124 | + A selectService element defines the list of serviceTypes available through |
| 125 | + a query. The user can select the service type(s) they understand and limit the |
| 126 | + datasets returned to only those service types.. |
| 127 | + --> |
| 128 | + <xsd:element name="selectService" substitutionGroup="selector"> |
| 129 | + <xsd:complexType> |
| 130 | + <xsd:complexContent> |
| 131 | + <xsd:extension base="selectorType"> |
| 132 | + <xsd:sequence> |
| 133 | + <xsd:element name="serviceType" minOccurs="1" maxOccurs="unbounded"> |
| 134 | + <xsd:complexType> |
| 135 | + <xsd:simpleContent> |
| 136 | + <xsd:extension base="cat:serviceTypes"> |
| 137 | + <xsd:attribute name="title" type="xsd:token"/> |
| 138 | + <xsd:attribute name="dataFormatType" type="cat:dataFormatTypes"/> |
| 139 | + <xsd:attribute name="returns" type="xsd:token" use="required"/> |
| 140 | + <xsd:attribute name="value" type="xsd:token" use="required"/> |
| 141 | + </xsd:extension> |
| 142 | + </xsd:simpleContent> |
| 143 | + </xsd:complexType> |
| 144 | + </xsd:element> |
| 145 | + </xsd:sequence> |
| 146 | + <xsd:attribute name="multiple" type="xsd:boolean" default="false"/> |
| 147 | + </xsd:extension> |
| 148 | + </xsd:complexContent> |
| 149 | + </xsd:complexType> |
| 150 | + </xsd:element> |
| 151 | + |
| 152 | + <!-- |
| 153 | + A selectStation element defines a list of stations from which a user can select. |
| 154 | + --> |
| 155 | + <!-- When the construct method is set to "template", the |
| 156 | + template string must contain exactly one replacement string. |
| 157 | + The template string does not have to be related to the id |
| 158 | + of the selector, if one is given. No matter the actual |
| 159 | + replacement string used, it will be replaced with the value |
| 160 | + of the selection. When the "paramValue" construct method |
| 161 | + is chosen, the parameter name will be the value of the id |
| 162 | + or "stn" if no id is given, i.e., "<id>=<value>" or |
| 163 | + "stn=<value>". |
| 164 | + --> |
| 165 | + <xsd:element name="selectStation" substitutionGroup="selector"> |
| 166 | + <xsd:complexType> |
| 167 | + <xsd:complexContent> |
| 168 | + <xsd:extension base="selectorType"> |
| 169 | + <xsd:sequence> |
| 170 | + <xsd:element ref="station" minOccurs="1" maxOccurs="unbounded"/> |
| 171 | + </xsd:sequence> |
| 172 | + <xsd:attribute name="multiple" type="xsd:boolean" default="false"/> |
| 173 | + </xsd:extension> |
| 174 | + </xsd:complexContent> |
| 175 | + </xsd:complexType> |
| 176 | + </xsd:element> |
| 177 | + |
| 178 | + <xsd:element name="station" substitutionGroup="choice"> |
| 179 | + <xsd:complexType> |
| 180 | + <xsd:complexContent> |
| 181 | + <xsd:extension base="choiceType"> |
| 182 | + <xsd:sequence> |
| 183 | + <xsd:element ref="location"/> |
| 184 | + </xsd:sequence> |
| 185 | + </xsd:extension> |
| 186 | + </xsd:complexContent> |
| 187 | + </xsd:complexType> |
| 188 | + </xsd:element> |
| 189 | + |
| 190 | + <xsd:element name="location" type="locationType"/> |
| 191 | + <xsd:complexType name="locationType"> |
| 192 | + <xsd:attribute name="latitude" type="xsd:float" use="required"/> |
| 193 | + <xsd:attribute name="longitude" type="xsd:float" use="required"/> |
| 194 | + <xsd:attribute name="latitude_units" type="xsd:token" default="degrees_north"/> |
| 195 | + <xsd:attribute name="longitude_units" type="xsd:token" default="degrees_east"/> |
| 196 | + </xsd:complexType> |
| 197 | + |
| 198 | + <xsd:element name="location3D" substitutionGroup="location"> |
| 199 | + <xsd:complexType> |
| 200 | + <xsd:complexContent> |
| 201 | + <xsd:extension base="locationType"> |
| 202 | + <xsd:attribute name="elevation" type="xsd:float" use="required"/> |
| 203 | + <xsd:attribute name="elevation_units" type="xsd:token" default="msl"/> |
| 204 | + </xsd:extension> |
| 205 | + </xsd:complexContent> |
| 206 | + </xsd:complexType> |
| 207 | + </xsd:element> |
| 208 | + |
| 209 | + <!-- |
| 210 | + A selectFromRange element defines a range from which a user may select |
| 211 | + a point or a range. |
| 212 | +
|
| 213 | + To select a point, a single replacement string is required: {point}. To |
| 214 | + select a range, two replacement strings are required: {min} and {max}. |
| 215 | + --> |
| 216 | + <xsd:element name="selectFromRange" substitutionGroup="selector"> |
| 217 | + <xsd:complexType> |
| 218 | + <xsd:complexContent> |
| 219 | + <xsd:extension base="selectorType"> |
| 220 | + <xsd:attribute name="min" type="xsd:decimal" use="required"/> |
| 221 | + <xsd:attribute name="max" type="xsd:decimal" use="required"/> |
| 222 | + <xsd:attribute name="units" type="xsd:string"/> |
| 223 | + <xsd:attribute name="modulo" type="xsd:boolean" default="false"/> |
| 224 | + <xsd:attribute name="resolution" type="xsd:float" use="required"/> |
| 225 | + <xsd:attribute name="selectType" type="rangeSelectTypeEnum" default="subrange" /> |
| 226 | + </xsd:extension> |
| 227 | + </xsd:complexContent> |
| 228 | + </xsd:complexType> |
| 229 | + </xsd:element> |
| 230 | + |
| 231 | + <!-- Enumeration of allowed types of selections from a range. --> |
| 232 | + <xsd:simpleType name="rangeSelectTypeEnum"> |
| 233 | + <xsd:restriction base="xsd:token"> |
| 234 | + <xsd:enumeration value="point"/> |
| 235 | + <xsd:enumeration value="subrange"/> |
| 236 | + <!--xsd:enumeration value="pointOrRange"/--> |
| 237 | + </xsd:restriction> |
| 238 | + </xsd:simpleType> |
| 239 | + |
| 240 | + <!-- |
| 241 | + A selectFromDateRange element defines a date range from which a user may |
| 242 | + select a point or a date range. |
| 243 | +
|
| 244 | + To select a point, a single replacement string is required: {point}. To |
| 245 | + select a range, two replacement strings are required: {min} and {max}. |
| 246 | + --> |
| 247 | + <xsd:element name="selectFromDateRange" substitutionGroup="selector"> |
| 248 | + <xsd:complexType> |
| 249 | + <xsd:complexContent> |
| 250 | + <xsd:extension base="selectorType"> |
| 251 | + <xsd:attribute name="start" type="cat:dateType"/> |
| 252 | + <xsd:attribute name="end" type="cat:dateType"/> |
| 253 | + <xsd:attribute name="duration" type="cat:duration"/> |
| 254 | + <xsd:attribute name="resolution" type="cat:duration" use="required"/> |
| 255 | + <xsd:attribute name="selectType" type="rangeSelectTypeEnum" default="subrange"/> |
| 256 | + </xsd:extension> |
| 257 | + </xsd:complexContent> |
| 258 | + </xsd:complexType> |
| 259 | + </xsd:element> |
| 260 | + |
| 261 | + <!-- |
| 262 | + The selectFromGeoRegion element defines a geographic region from which the |
| 263 | + user can select a geographic region, currently limited to a bounding box. |
| 264 | + --> |
| 265 | + <xsd:element name="selectFromGeoRegion" substitutionGroup="selector"> |
| 266 | + <xsd:complexType> |
| 267 | + <xsd:complexContent> |
| 268 | + <xsd:extension base="selectorType"> |
| 269 | + <xsd:sequence> |
| 270 | + <xsd:element ref="geoBoundingBox"/> |
| 271 | + </xsd:sequence> |
| 272 | + </xsd:extension> |
| 273 | + </xsd:complexContent> |
| 274 | + </xsd:complexType> |
| 275 | + </xsd:element> |
| 276 | + |
| 277 | + <xsd:element name="geoBoundingBox"> |
| 278 | + <xsd:complexType> |
| 279 | + <xsd:sequence> |
| 280 | + <xsd:element name="lowerLeft" type="locationType"/> |
| 281 | + <xsd:element name="upperRight" type="locationType"/> |
| 282 | + </xsd:sequence> |
| 283 | + </xsd:complexType> |
| 284 | + </xsd:element> |
| 285 | + |
| 286 | + <!-- |
| 287 | + The userInterface element definition. |
| 288 | + --> |
| 289 | + <xsd:element name="userInterface"> |
| 290 | + <xsd:complexType> |
| 291 | + <xsd:sequence> |
| 292 | + <xsd:any minOccurs="0" maxOccurs="unbounded" processContents="skip"/> |
| 293 | + </xsd:sequence> |
| 294 | + </xsd:complexType> |
| 295 | + </xsd:element> |
| 296 | + |
| 297 | +</xsd:schema> |
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