/**
* Queries the configured feature source and returns a MgReader based on the current GET query parameters and adapter configuration
*/
protected function CreateQueryOptions($single)
{
$query = new MgFeatureQueryOptions();
$this->EnsureQualifiedClassName();
$tokens = explode(":", $this->className);
$clsDef = null;
$clsDef = $this->featSvc->GetClassDefinition($this->featureSourceId, $tokens[0], $tokens[1]);
if ($single === true) {
if ($this->featureId == null) {
throw new Exception($this->app->localizer->getText("E_NO_FEATURE_ID_SET"));
}
$idType = MgPropertyType::String;
if ($this->featureIdProp == null) {
$idProps = $clsDef->GetIdentityProperties();
if ($idProps->GetCount() == 0) {
throw new Exception($this->app->localizer->getText("E_CANNOT_QUERY_NO_ID_PROPS", $this->className, $this->featureSourceId->ToString()));
} else {
if ($idProps->GetCount() > 1) {
throw new Exception($this->app->localizer->getText("E_CANNOT_QUERY_MULTIPLE_ID_PROPS", $this->className, $this->featureSourceId->ToString()));
} else {
$idProp = $idProps->GetItem(0);
$this->featureIdProp = $idProp->GetName();
$idType = $idProp->GetDataType();
}
}
} else {
$props = $clsDef->GetProperties();
$iidx = $props->IndexOf($this->featureIdProp);
if ($iidx >= 0) {
$propDef = $props->GetItem($iidx);
if ($propDef->GetPropertyType() != MgFeaturePropertyType::DataProperty) {
throw new Exception($this->app->localizer->getText("E_ID_PROP_NOT_DATA", $this->featureIdProp));
}
} else {
throw new Exception($this->app->localizer->getText("E_ID_PROP_NOT_FOUND", $this->featureIdProp));
}
}
if ($idType == MgPropertyType::String) {
$query->SetFilter($this->featureIdProp . " = '" . $this->featureId . "'");
} else {
$query->SetFilter($this->featureIdProp . " = " . $this->featureId);
}
} else {
$flt = $this->app->request->get("filter");
if ($flt != null) {
$query->SetFilter($flt);
}
$bbox = $this->app->request->get("bbox");
if ($bbox != null) {
$parts = explode(",", $bbox);
if (count($parts) == 4) {
$wktRw = new MgWktReaderWriter();
$geom = $wktRw->Read(MgUtils::MakeWktPolygon($parts[0], $parts[1], $parts[2], $parts[3]));
$query->SetSpatialFilter($clsDef->GetDefaultGeometryPropertyName(), $geom, MgFeatureSpatialOperations::EnvelopeIntersects);
}
}
}
if (isset($this->app->ComputedProperties)) {
$compProps = $this->app->ComputedProperties;
foreach ($compProps as $alias => $expression) {
$this->computedPropertyList[$alias] = $expression;
}
}
$bAppliedComputedProperties = false;
if (count($this->computedPropertyList) > 0) {
foreach ($this->computedPropertyList as $alias => $expression) {
$query->AddComputedProperty($alias, $expression);
$bAppliedComputedProperties = true;
}
}
//If computed properties were applied, add all properties from the class definition if no
//explicit property list supplied
if ($bAppliedComputedProperties && count($this->propertyList) == 0) {
$clsProps = $clsDef->GetProperties();
for ($i = 0; $i < $clsProps->GetCount(); $i++) {
$propDef = $clsProps->GetItem($i);
$query->AddFeatureProperty($propDef->GetName());
}
} else {
if (count($this->propertyList) > 0) {
foreach ($this->propertyList as $propName) {
$query->AddFeatureProperty($propName);
}
}
}
$orderby = $this->app->request->get("orderby");
$orderOptions = $this->app->request->get("orderoption");
if ($orderby != null) {
if ($orderOptions == null) {
$orderOptions = "asc";
}
$orderPropNames = explode(",", $orderby);
//If you have a comma in your property names, it's your own fault :)
$orderProps = new MgStringCollection();
foreach ($orderPropNames as $propName) {
$orderProps->Add($propName);
}
$orderOpt = MgOrderingOption::Ascending;
if (strtolower($orderOptions) === "desc") {
$orderOpt = MgOrderingOption::Descending;
}
$query->SetOrderingFilter($orderProps, $orderOpt);
}
return $query;
}
public function SelectLayerFeatures($ldfId, $format)
{
//Check for unsupported representations
$fmt = $this->ValidateRepresentation($format, array("xml", "geojson", "html", "czml"));
$mimeType = $this->GetMimeTypeForFormat($fmt);
try {
$sessionId = "";
if ($ldfId->GetRepositoryType() == MgRepositoryType::Session) {
$sessionId = $ldfId->GetRepositoryName();
}
$this->EnsureAuthenticationForSite($sessionId, true, $mimeType);
$siteConn = new MgSiteConnection();
$siteConn->Open($this->userInfo);
$featSvc = $siteConn->CreateService(MgServiceType::FeatureService);
$query = new MgFeatureQueryOptions();
$propList = $this->GetRequestParameter("properties", "");
$filter = $this->GetRequestParameter("filter", "");
$orderby = $this->GetRequestParameter("orderby", "");
$orderOptions = $this->GetRequestParameter("orderoption", "");
$maxFeatures = $this->GetRequestParameter("maxfeatures", "");
$transformto = $this->GetRequestParameter("transformto", "");
$bbox = $this->GetRequestParameter("bbox", "");
$pageSize = $this->GetRequestParameter("pagesize", -1);
$pageNo = $this->GetRequestParameter("page", -1);
//Internal debugging flag
$chunk = $this->GetBooleanRequestParameter("chunk", true);
if ($pageNo >= 0 && $pageSize === -1) {
$this->BadRequest($this->app->localizer->getText("E_MISSING_REQUIRED_PARAMETER", "pagesize"), $mimeType);
} else {
//The way that CZML output is done means we cannot support pagination
if ($pageNo >= 0 && $pageSize > 0 && $fmt === "czml") {
$this->BadRequest($this->app->localizer->getText("E_CZML_PAGINATION_NOT_SUPPORTED"), $mimeType);
}
}
$limit = -1;
if ($maxFeatures !== "") {
$limit = intval($maxFeatures);
}
//Load the Layer Definition document and extract the relevant bits of information
//we're interested in
$resSvc = $siteConn->CreateService(MgServiceType::ResourceService);
$ldfContent = $resSvc->GetResourceContent($ldfId);
$doc = new DOMDocument();
$doc->loadXML($ldfContent->ToString());
$vl = $doc->getElementsByTagName("VectorLayerDefinition");
if ($vl->length == 1) {
$vlNode = $vl->item(0);
$fsId = $vlNode->getElementsByTagName("ResourceId");
$fc = $vlNode->getElementsByTagName("FeatureName");
$hlink = $vlNode->getElementsByTagName("Url");
$tt = $vlNode->getElementsByTagName("ToolTip");
$flt = $vlNode->getElementsByTagName("Filter");
$elev = $vlNode->getElementsByTagName("ElevationSettings");
if ($fsId->length == 1) {
$fsId = new MgResourceIdentifier($fsId->item(0)->nodeValue);
$site = $siteConn->GetSite();
$this->VerifyWhitelist($fsId->ToString(), $this->GetMimeTypeForFormat($fmt), "SELECTFEATURES", $fmt, $site, $this->userName);
if ($fc->length == 1) {
//Add hyperlink, tooltip and elevation as special computed properties
if ($hlink->length == 1 && strlen($hlink->item(0)->nodeValue) > 0) {
$query->AddComputedProperty(MgRestConstants::PROP_HYPERLINK, $hlink->item(0)->nodeValue);
}
if ($tt->length == 1 && strlen($tt->item(0)->nodeValue) > 0) {
$query->AddComputedProperty(MgRestConstants::PROP_TOOLTIP, $tt->item(0)->nodeValue);
}
if ($elev->length == 1) {
$elevNode = $elev->item(0);
$zoff = $elevNode->getElementsByTagName("ZOffset");
$zofftype = $elevNode->getElementsByTagName("ZOffsetType");
$zext = $elevNode->getElementsByTagName("ZExtrusion");
$unit = $elevNode->getElementsByTagName("Unit");
if ($zoff->length == 1 && strlen($zoff->item(0)->nodeValue) > 0) {
$query->AddComputedProperty(MgRestConstants::PROP_Z_OFFSET, $zoff->item(0)->nodeValue);
} else {
$query->AddComputedProperty(MgRestConstants::PROP_Z_OFFSET, "0");
}
if ($zofftype->length == 1 && strlen($zofftype->item(0)->nodeValue) > 0) {
$query->AddComputedProperty(MgRestConstants::PROP_Z_OFFSET_TYPE, "'" . $zofftype->item(0)->nodeValue . "'");
} else {
$query->AddComputedProperty(MgRestConstants::PROP_Z_OFFSET_TYPE, "'RelativeToGround'");
}
if ($zext->length == 1 && strlen($zext->item(0)->nodeValue) > 0) {
$query->AddComputedProperty(MgRestConstants::PROP_Z_EXTRUSION, $zext->item(0)->nodeValue);
} else {
$query->AddComputedProperty(MgRestConstants::PROP_Z_EXTRUSION, "0");
}
if ($unit->length == 1 && strlen($unit->item(0)->nodeValue) > 0) {
$query->AddComputedProperty(MgRestConstants::PROP_Z_UNITS, "'" . $unit->item(0)->nodeValue . "'");
} else {
$query->AddComputedProperty(MgRestConstants::PROP_Z_UNITS, "'Meters'");
}
}
$baseFilter = "";
//Set filter from layer if defined
if ($flt->length == 1 && strlen($flt->item(0)->nodeValue) > 0) {
if ($filter !== "") {
//logical AND with the layer's filter to combine them
$baseFilter = "(" . $flt->item(0)->nodeValue . ") AND (" . $filter . ")";
$query->SetFilter($baseFilter);
} else {
$baseFilter = $flt->item(0)->nodeValue;
$query->SetFilter($baseFilter);
}
} else {
if ($filter !== "") {
$baseFilter = $filter;
$query->SetFilter($baseFilter);
}
}
$tokens = explode(":", $fc->item(0)->nodeValue);
$schemaName = $tokens[0];
$className = $tokens[1];
$clsDef = NULL;
//Unless an explicit property list has been specified, we're explicitly adding all properties
//from the class definition
if ($propList !== "") {
$propNames = explode(",", $propList);
//If you have a comma in your property names, it's your own fault :)
foreach ($propNames as $propName) {
$query->AddFeatureProperty($propName);
}
} else {
if ($clsDef == NULL) {
$clsDef = $featSvc->GetClassDefinition($fsId, $schemaName, $className);
}
$clsProps = $clsDef->GetProperties();
for ($i = 0; $i < $clsProps->GetCount(); $i++) {
$propDef = $clsProps->GetItem($i);
$query->AddFeatureProperty($propDef->GetName());
}
}
if ($orderby !== "") {
$orderPropNames = explode(",", $orderby);
//If you have a comma in your property names, it's your own fault :)
$orderProps = new MgStringCollection();
foreach ($orderPropNames as $propName) {
$orderProps->Add($propName);
}
$orderOpt = MgOrderingOption::Ascending;
if (strtolower($orderOptions) === "desc") {
$orderOpt = MgOrderingOption::Descending;
}
$query->SetOrderingFilter($orderProps, $orderOpt);
}
//We must require features as LL84 for CZML output
if ($fmt == "czml") {
$transformto = "LL84";
}
$transform = null;
if ($transformto !== "") {
$transform = MgUtils::GetTransform($featSvc, $fsId, $schemaName, $className, $transformto);
}
if ($bbox !== "") {
$parts = explode(",", $bbox);
if (count($parts) == 4) {
$wktRw = new MgWktReaderWriter();
if ($clsDef == NULL) {
$clsDef = $featSvc->GetClassDefinition($fsId, $schemaName, $className);
}
$geom = $wktRw->Read(MgUtils::MakeWktPolygon($parts[0], $parts[1], $parts[2], $parts[3]));
//Transform bbox to target cs if flag specified
$bboxIsTargetCs = $this->GetBooleanRequestParameter("bboxistargetcs", false);
if ($bboxIsTargetCs) {
//Because it has been declared the bbox is in target coordiantes, we have to transform that bbox back to the
//source, which means we need an inverse transform
$invTx = MgUtils::GetTransform($featSvc, $fsId, $schemaName, $className, $transformto, true);
$geom = $geom->Transform($invTx);
}
$query->SetSpatialFilter($clsDef->GetDefaultGeometryPropertyName(), $geom, MgFeatureSpatialOperations::EnvelopeIntersects);
}
}
//Ensure valid page number if specified
if ($pageSize > 0) {
if ($pageNo < 1) {
$pageNo = 1;
}
}
$owriter = null;
if ($chunk === "0") {
$owriter = new MgSlimChunkWriter($this->app);
} else {
$owriter = new MgHttpChunkWriter();
}
if ($fmt == "czml") {
$result = new MgCzmlResult($featSvc, $fsId, "{$schemaName}:{$className}", $query, $limit, $baseFilter, $vlNode, $owriter);
$result->CheckAndSetDownloadHeaders($this->app, $format);
if ($transform != null) {
$result->SetTransform($transform);
}
$result->Output($format);
} else {
$reader = $featSvc->SelectFeatures($fsId, "{$schemaName}:{$className}", $query);
if ($pageSize > 0) {
$pageReader = new MgPaginatedFeatureReader($reader, $pageSize, $pageNo, $limit);
$result = new MgReaderChunkedResult($featSvc, $pageReader, $limit, $owriter, $this->app->localizer);
} else {
$result = new MgReaderChunkedResult($featSvc, $reader, $limit, $owriter, $this->app->localizer);
}
$result->CheckAndSetDownloadHeaders($this->app, $format);
if ($transform != null) {
$result->SetTransform($transform);
}
if ($fmt === "html") {
$result->SetHtmlParams($this->app);
}
$result->Output($format);
}
} else {
throw new Exception($this->app->localizer->getText("E_LAYER_HAS_INVALID_FEATURE_CLASS", $ldfId->ToString()));
}
} else {
throw new Exception($this->app->localizer->getText("E_LAYER_HAS_INVALID_FEATURE_SOURCE", $ldfId->ToString()));
}
}
} catch (MgException $ex) {
$this->OnException($ex, $mimeType);
}
}
private function PutVectorTileXYZ($map, $groupName, $siteConn, $metersPerUnit, $csFactory, $path, $boundsMinx, $boundsMinY, $boundsMaxX, $boundsMaxY, $layerNames)
{
$wktRw = new MgWktReaderWriter();
$agfRw = new MgAgfReaderWriter();
$resSvc = $siteConn->CreateService(MgServiceType::ResourceService);
$featSvc = $siteConn->CreateService(MgServiceType::FeatureService);
$mapCsWkt = $map->GetMapSRS();
$layers = $map->GetLayers();
$groups = $map->GetLayerGroups();
$baseGroup = $groups->GetItem($groupName);
$layerCount = $layers->GetCount();
$firstFeature = true;
$scale = self::GetScaleFromBounds($map, self::XYZ_TILE_WIDTH, self::XYZ_TILE_HEIGHT, $metersPerUnit, $boundsMinx, $boundsMinY, $boundsMaxX, $boundsMaxY);
$fp = fopen($path, "w");
fwrite($fp, '{ "type": "FeatureCollection", "features": [');
for ($i = 0; $i < $layerCount; $i++) {
$layer = $layers->GetItem($i);
$parentGroup = $layer->GetGroup();
if ($parentGroup != null && $parentGroup->GetObjectId() == $baseGroup->GetObjectId()) {
if (!self::IsLayerVisibleAtScale($layer, $resSvc, $scale)) {
continue;
}
//If list of layer names specified, skip if this layer is not in that list
if ($layerNames != null) {
$bFound = false;
foreach ($layerNames as $layerName) {
if ($layer->GetName() == $layerName) {
$bFound = true;
break;
}
}
if (!$bFound) {
continue;
}
}
$wktPoly = MgUtils::MakeWktPolygon($boundsMinx, $boundsMinY, $boundsMaxX, $boundsMaxY);
$geom = $wktRw->Read($wktPoly);
$clsDef = $layer->GetClassDefinition();
$clsProps = $clsDef->GetProperties();
$idProps = $clsDef->GetIdentityProperties();
$idName = NULL;
if ($idProps->GetCount() == 1) {
$idp = $idProps->GetItem(0);
$idName = $idp->GetName();
}
$fsId = new MgResourceIdentifier($layer->GetFeatureSourceId());
//Set up forward and inverse transforms. Inverse for transforming map bounding box
//Forward for transforming source geometries to map space
$xform = self::GetTransform($featSvc, $fsId, $clsDef, $mapCsWkt, $csFactory);
$query = new MgFeatureQueryOptions();
$geomName = $layer->GetFeatureGeometryName();
if ($xform != null) {
$sourceCs = $xform->GetSource();
$targetCs = $xform->GetTarget();
$invXform = $csFactory->GetTransform($targetCs, $sourceCs);
$txgeom = $geom->Transform($invXform);
$query->SetSpatialFilter($geomName, $txgeom, MgFeatureSpatialOperations::EnvelopeIntersects);
} else {
$query->SetSpatialFilter($geomName, $geom, MgFeatureSpatialOperations::EnvelopeIntersects);
}
for ($p = 0; $p < $clsProps->GetCount(); $p++) {
$propDef = $clsProps->GetItem($p);
$query->AddFeatureProperty($propDef->GetName());
}
//If we're rendering a vector tile for a single layer, we don't need these special attributes
if ($layerNames == NULL || count($layerNames) > 1) {
$query->AddComputedProperty("_displayIndex", $layerCount - $i);
$query->AddComputedProperty("_layer", "'" . $layer->GetName() . "'");
$query->AddComputedProperty("_selectable", $layer->GetSelectable() ? "true" : "false");
}
$reader = $layer->SelectFeatures($query);
$read = 0;
while ($reader->ReadNext()) {
$read++;
if (!$reader->IsNull($geomName)) {
if (!$firstFeature) {
fwrite($fp, ",");
}
try {
$output = MgGeoJsonWriter::FeatureToGeoJson($reader, $agfRw, $xform, $idName);
fwrite($fp, $output);
$firstFeature = false;
} catch (MgException $ex) {
}
}
}
$reader->Close();
}
}
fwrite($fp, ']}');
fclose($fp);
return $path;
}
