public function SelectFeatures($resId, $schemaName, $className, $format)
{
//Check for unsupported representations
$fmt = $this->ValidateRepresentation($format, array("xml", "html", "geojson"));
$mimeType = $this->GetMimeTypeForFormat($fmt);
try {
$sessionId = "";
if ($resId->GetRepositoryType() == MgRepositoryType::Session) {
$sessionId = $resId->GetRepositoryName();
}
$this->EnsureAuthenticationForSite($sessionId, true, $mimeType);
$siteConn = new MgSiteConnection();
$siteConn->Open($this->userInfo);
$site = $siteConn->GetSite();
$this->VerifyWhitelist($resId->ToString(), $mimeType, "SELECTFEATURES", $fmt, $site, $this->userName);
$featSvc = $siteConn->CreateService(MgServiceType::FeatureService);
$query = new MgFeatureQueryOptions();
$filter = $this->GetRequestParameter("filter", "");
$propList = $this->GetRequestParameter("properties", "");
$orderby = $this->GetRequestParameter("orderby", "");
$orderOptions = $this->GetRequestParameter("orderoption", "asc");
$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"), $mimeType);
}
if ($filter !== "") {
$query->SetFilter($filter);
}
$limit = -1;
if ($maxFeatures !== "") {
$limit = intval($maxFeatures);
}
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);
}
}
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);
}
$transform = null;
if ($transformto !== "") {
$transform = MgUtils::GetTransform($featSvc, $resId, $schemaName, $className, $transformto);
}
if ($bbox !== "") {
$parts = explode(",", $bbox);
if (count($parts) == 4) {
$wktRw = new MgWktReaderWriter();
$geom = $wktRw->Read(MgUtils::MakeWktPolygon($parts[0], $parts[1], $parts[2], $parts[3]));
//Transform the bbox if we have the flag indicating so
$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, $resId, $schemaName, $className, $transformto, true);
$geom = $geom->Transform($invTx);
}
$clsDef = $featSvc->GetClassDefinition($resId, $schemaName, $className);
$query->SetSpatialFilter($clsDef->GetDefaultGeometryPropertyName(), $geom, MgFeatureSpatialOperations::EnvelopeIntersects);
}
}
$reader = $featSvc->SelectFeatures($resId, "{$schemaName}:{$className}", $query);
$owriter = null;
if ($chunk === "0") {
$owriter = new MgSlimChunkWriter($this->app);
} else {
$owriter = new MgHttpChunkWriter();
}
if ($pageSize > 0) {
if ($pageNo < 1) {
$pageNo = 1;
}
$pageReader = new MgPaginatedFeatureReader($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);
} catch (MgException $ex) {
$this->OnException($ex, $mimeType);
}
}
}
/* get the feature source from the layer */
$featureResId = new MgResourceIdentifier($layerObj->GetFeatureSourceId());
$featureGeometryName = $layerObj->GetFeatureGeometryName();
$queryOptions = new MgFeatureQueryOptions();
/* the class that is used for this layer will be used to select
features */
$class = $layerObj->GetFeatureClassName();
//only retrieve properties that we actually need
$mappings = $_SESSION['property_mappings'][$layerObj->GetObjectId()];
//TODO : seems that property mapping breaks the selection ????
//could it be that $selection->AddFeatures($layerObj, $featureReader, 0) is
//the one causing a problem when the properies are limited ?
if (0 && count($mappings) > 0) {
foreach ($mappings as $name => $value) {
$queryOptions->AddFeatureProperty($name);
//echo "$name $value <br>\n";
}
$geomName = $layerObj->GetFeatureGeometryName();
$queryOptions->AddFeatureProperty($geomName);
}
//get the layer filter value if supplied
$layerReader = $resourceService->GetResourceContent($layerObj->GetLayerDefinition());
$xmldoc = new DOMDocument();
$xmldoc->loadXML(ByteReaderToString($layerReader));
$xpathObj = new domXPath($xmldoc);
$xpathStr = "/LayerDefinition/VectorLayerDefinition/Filter";
//TODO: need this for DWF or Grid layers?
$xpathQuery = $xpathObj->query($xpathStr);
$layerFilter = '';
if ($xpathQuery->length > 0) {
$cmdColl = new MgFeatureCommandCollection();
$cmdColl->Add($cmd);
try {
$svc->CreateFeatureSource($id, $params);
$startTime = microtime(true);
$props = $svc->UpdateFeatures($id, $cmdColl, false);
$endTime = microtime(true);
$diffTime = $endTime - $startTime;
$reader = $props->GetItem(0)->GetValue();
while ($reader->ReadNext() == true) {
$key = $reader->GetInt32("KEY");
}
$reader->Close();
// Now select a few of the feature and make sure we get everything back correctly.
$query = new MgFeatureQueryOptions();
$query->AddFeatureProperty("NAME");
$query->AddFeatureProperty("KEY");
$query->AddFeatureProperty("GEOM");
$query->SetFilter("");
$reader = $svc->SelectFeatures($id, "Buffer", $query);
while ($reader->ReadNext() == true) {
$geomText = '';
$agfStream = $reader->GetGeometry("GEOM");
$geom = $agf->Read($agfStream);
$geomText = $wkt->Write($geom);
echo $reader->GetInt32("KEY") . " " . $reader->GetString("NAME") . " " . $geomText . "\n";
}
echo "Time for " . $i . " ops was " . $diffTime . " seconds\n";
echo "Average throughput of " . $i / $diffTime . " features per second\n";
} catch (MgException $exc) {
echo "First failure on insert... caught...\n";
function GetPropertyMinMaxCount()
{
$resourceService = $this->site->CreateService(MgServiceType::ResourceService);
$map = new MgMap();
$map->Open($resourceService, $this->args['MAPNAME']);
$layer = $map->GetLayers()->GetItem($this->args['LAYERNAME']);
$featureService = $this->site->CreateService(MgServiceType::FeatureService);
$resId = new MgResourceIdentifier($layer->GetFeatureSourceId());
// Note: Should be able to do this:
//
// $minValue = 0;
// $maxValue = 0;
// $count = 0;
//
// $aggregateOptions = new MgFeatureAggregateOptions();
// $aggregateOptions->AddComputedProperty('min', 'Min(' . $this->args['PROPERTYNAME'] . ')');
// $aggregateOptions->AddComputedProperty('max', 'Max(' . $this->args['PROPERTYNAME'] . ')');
// $aggregateOptions->AddComputedProperty('count', 'Count(' . $this->args['PROPERTYNAME'] . ')');
//
// $dataReader = $featureService->SelectAggregate($resId, $layer->GetFeatureClassName(), $aggregateOptions);
//
// if ($dataReader->ReadNext())
// {
// $minValue = $this->GetFeaturePropertyValue($dataReader, 'min');
// $maxValue = $this->GetFeaturePropertyValue($dataReader, 'max');
// $count = $this->GetFeaturePropertyValue($dataReader, 'count');
// }
// $dataReader->Close();
//
// However due to a bug, Min/Max do not work on string types, so we have to do this:
unset($minValue);
unset($maxValue);
$count = 0;
$queryOptions = new MgFeatureQueryOptions();
$queryOptions->AddFeatureProperty($this->args['PROPERTYNAME']);
$featureReader = $featureService->SelectFeatures($resId, $layer->GetFeatureClassName(), $queryOptions);
while ($featureReader->ReadNext()) {
$value = $this->GetFeaturePropertyValue($featureReader, $this->args['PROPERTYNAME']);
if ($value != null) {
if (!isset($maxValue) && !isset($minValue)) {
$maxValue = $value;
$minValue = $value;
}
if ($value > $maxValue) {
$maxValue = $value;
}
if ($value < $minValue) {
$minValue = $value;
}
}
$count++;
}
$featureReader->Close();
if (!isset($maxValue) && !isset($minValue)) {
$maxValue = "";
$minValue = "";
}
return array($minValue, $maxValue, $count);
}
/**
* Queries the configured feature source and returns a MgReader based on the current GET query parameters and adapter configuration
*/
protected function CreateQueryOptions($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 $query;
}
function SelectFeatures($paramSet)
{
try {
$repId = null;
$this->unitTestParamVm->Execute("Select ParamValue from Params WHERE ParamSet={$paramSet} AND ParamName=\"RESOURCEID\"");
$this->arrayParam["RESOURCEID"] = $this->unitTestParamVm->GetString("ParamValue");
$this->unitTestParamVm->Execute("Select ParamValue from Params WHERE ParamSet={$paramSet} AND ParamName=\"CLASSNAME\"");
$this->arrayParam["CLASSNAME"] = $this->unitTestParamVm->GetString("ParamValue");
//TODO: used the value retrieved from the database to create the MgStringCollection object
if (SQLITE_ROW == $this->unitTestParamVm->Execute("Select ParamValue from Params WHERE ParamSet={$paramSet} AND ParamName=\"PROPERTIES\"")) {
$this->arrayParam["PROPERTIES"] = $this->unitTestParamVm->GetString("ParamValue");
}
if (SQLITE_ROW == $this->unitTestParamVm->Execute("Select ParamValue from Params WHERE ParamSet={$paramSet} AND ParamName=\"FILTER\"")) {
$this->arrayParam["FILTER"] = $this->unitTestParamVm->GetString("ParamValue");
}
$queryOptions = new MgFeatureQueryOptions();
//TODO: Set query options
if (array_key_exists("FILTER", $this->arrayParam)) {
$queryOptions->SetFilter($this->arrayParam["FILTER"]);
}
//PROPERTIES should be stored in the database as comma separated string without spaces
if (array_key_exists("PROPERTIES", $this->arrayParam)) {
$stringArray = explode(",", $this->arrayParam["PROPERTIES"]);
for ($i = 0; $i < count($stringArray); $i++) {
$queryOptions->AddFeatureProperty($stringArray[$i]);
}
}
if (array_key_exists("RESOURCEID", $this->arrayParam)) {
$repId = new MgResourceIdentifier($this->arrayParam["RESOURCEID"]);
}
$featureReader = $this->featureSrvc->SelectFeatures($repId, $this->arrayParam['CLASSNAME'], $queryOptions);
$byteReader = $featureReader->ToXml();
$featureReader->Close();
return Utils::GetResponse($byteReader);
} catch (MgException $e) {
return new Result(get_class($e), "text/plain");
} catch (SqliteException $s) {
return new Result($s->GetExceptionMessage(), "text/plain");
}
}
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;
}
