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<?php |
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/** |
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* My attempt at a Time Handler widget |
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*/ |
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include_once(dirname(__FILE__)."/../Widget.php"); |
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include_once(dirname(__FILE__)."/../Label.php"); |
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class TimeHandler extends CWCWidget |
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{ |
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var $moLabel; |
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var $mszTitle = "Select an offset Time"; |
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var $mszWidgetClass = ""; |
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/** |
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* build a new time handler widget |
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*/ |
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function TimeHandler() |
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{ |
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$this->mszLanguageResource = str_replace("\\","/",dirname(__FILE__))."/TimeHandler.dbf"; |
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// invoke constructor of parent |
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parent::CWCWidget(); |
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$this->mszTitle = trim($this->moMLT->get("0", "Select an Offset Time")); |
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$this->mnPriority = PRIORITY_HIGH; |
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// set the description for this widget |
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$this->szWidgetDescription = <<<EOT |
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Sends along an offset time in hours to various data sources and returns with data |
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EOT; |
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$this->moLabel = new CWCLabel( $this ); |
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$this->maAttributes["TITLE"] = new StringAttribute( "TITLE", false ); |
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$this->maAttributes["WIDGETCLASS"] = new StringAttribute( "WIDGETCLASS", false ); |
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$this->mnMaturityLevel = MATURITY_BETA; |
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} |
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function InitDefaults() |
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{ |
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parent::InitDefaults(); |
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if (isset($this->maParams["WIDGETCLASS"])) |
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$this->mszWidgetClass = strtoupper($this->maParams["WIDGETCLASS"]); |
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} |
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/** |
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* get the javascript functions for this widget |
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*/ |
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function GetJavascriptFunctions() |
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{ |
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parent::GetJavascriptFunctions(); |
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if (isset($this->maSharedResourceWidgets["CWCJSAPI"])) |
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$bCWCJSAPI = 1; |
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else |
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$bCWCJSAPI = 0; |
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$aReturn = array(); |
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$szJsFunctionName = "changeOffset"; |
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$szFunction = <<<EOT |
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/** |
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* {$szJsFunctionName} |
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* called when the Time Offset value is changed. |
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*/ |
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function {$szJsFunctionName}(obj) |
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{ |
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box = document.forms[0].OFFSET; |
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offset = box.options[box.selectedIndex].value; |
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if (offset != "") |
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{ |
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//alert(offset); |
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{$this->mszHTMLForm}.NAV_OFFSET.value=offset; |
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{$this->mszHTMLForm}.SEL_OFFSET.value=box.options[box.selectedIndex].text; |
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{$this->mszHTMLForm}.NAV_CMD.value = ""; |
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{$this->mszHTMLForm}.submit(); |
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} |
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return; |
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} |
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EOT; |
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$aReturn[$szJsFunctionName] = $szFunction; |
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return $aReturn; |
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} |
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/** |
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* get the HTML variables for this widget |
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*/ |
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function GetHTMLHiddenVariables() |
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{ |
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parent::GetHTMLHiddenVariables(); |
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$szVariable = "NAV_OFFSET"; |
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$szNavOffset = $this->getVar( "NAV_OFFSET" ); |
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$szValue = " <INPUT TYPE=HIDDEN NAME=$szVariable VALUE=\"$szNavOffset\">\n"; |
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$aReturn[$szVariable] = $szValue; |
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$szVariable = "SEL_OFFSET"; |
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$szSelOffset = $this->getVar( "SEL_OFFSET" ); |
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$szValue = " <INPUT TYPE=HIDDEN NAME=$szVariable VALUE=\"$szSelOffset\">\n"; |
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$aReturn[$szVariable] = $szValue; |
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return $aReturn; |
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} |
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/** |
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* process the url looking for timehandler requests |
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*/ |
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function ParseURL() |
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{ |
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parent::ParseURL(); |
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if ($this->isVarSet( "NAV_OFFSET" ) && |
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$this->getVar( "NAV_OFFSET" ) != "") |
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{ |
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$szOffset = $this->getVar( "NAV_OFFSET" ); |
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$oMap = $this->moMapObject->oMap; |
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//hide mouseovers/insitu currents if offset is not 2 |
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//get layers to alter |
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$mouse_layer = $oMap->getLayerByName('Observation MouseOvers'); |
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$is_currents_layer = $oMap->getLayerByName('in_situ_currents'); |
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$is_currents_arrow_layer = $oMap->getLayerByName('in_situ_currents_arrow'); |
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$qs_layer = $oMap->getLayerByName('QS_1'); |
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if ($szOffset != 2) |
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{ |
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// hide MouseOver option in legend |
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$mouse_layer->set('group','Hidden'); |
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$mouse_layer->SetMetaData('legendvis','hidden'); |
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//if MouseOvers are ON when the time is changed these will make sure it doesn't render |
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$mouse_layer->set('minscale','10000000'); |
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//if is_current are ON when the time is changed these will make sure they don't render |
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$is_currents_layer->set('minscale','10000000'); |
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$is_currents_arrow_layer->set('minscale','10000000'); |
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$codar_offset = $szOffset; |
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} |
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else |
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{ |
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//return MouseOver to legend since -2 hrs |
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$mouse_layer->set('group','Observations'); |
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$mouse_layer->SetMetaData('legendvis',''); |
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//return IS current layers to normal scale dependencies |
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$is_currents_layer->set('minscale','150000'); |
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$is_currents_arrow_layer->set('minscale','150000'); |
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$codar_offset = $szOffset + 2; |
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} |
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//here is the meat of the time offset handling |
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$label_layer = $oMap->getLayerByName('request_timestamp'); |
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$class = $label_layer->getClass(0); |
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//Eastern Time - offset for timestamp labelling |
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$request_time_eastern = time() - ($szOffset * 60 * 60); |
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//format and send to mapfile for labelling |
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$timestamp = date('m-d-Y g\:\0\0 a', $request_time_eastern); |
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$class->settext($label_layer,"$timestamp"); |
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//GMT time - offset for DB request |
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$request_time = (strtotime (gmdate("m/d/Y H:i:s"))) - ($szOffset * 60 * 60); |
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//GMT time - offset and then reformatted for QuikSCAT WMS service |
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$quikscat_time = date('Y_m_d_H_\0_\0', $request_time); |
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//GMT time - offset for CODAR DB request |
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$codar_request_time = (strtotime (gmdate("m/d/Y H:i:s"))) - ($codar_offset * 60 * 60); |
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$nLayers = $oMap->numlayers; |
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for ($i=0;$i<$nLayers;$i++) |
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{ |
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$oLayer = $oMap->getLayer($i); |
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$db_processing = $oLayer->getMetaData('db_processing'); |
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if ($oLayer->connectiontype == MS_WMS && $oLayer->group == 'Observations' && $oLayer->name != 'quikscat') |
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{ |
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//$con_string = $oLayer->connection; |
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$con_string = $oLayer->GetMetaData("wms_onlineresource"); |
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$new_con_string = $con_string.'&time_offset_hours='.$szOffset; |
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//print $new_con_string; |
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$oLayer->set('connection', $new_con_string); |
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} |
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//handling for local QuikSCAT layers |
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if ($oLayer->connectiontype == MS_WMS && $oLayer->name == 'quikscat_wms') |
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{ |
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$qs_connection = $oLayer->GetMetaData("wms_onlineresource"); |
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$new_qs_connection = $qs_connection.'&time='.$quikscat_time; |
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//print $new_qs_connection; |
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$oLayer->set('connection', $new_qs_connection); |
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} |
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if ($oLayer->connectiontype == MS_POSTGIS && $db_processing == '1') |
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{ |
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//timestamp format is 2006-01-19 16:00 |
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$request_time_db = date('Y-m-d H\:i', $request_time); |
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$oLayer->setFilter('report_time_stamp = date_trunc(\'hour\',timestamp without time zone \''.$request_time_db.'\')'); |
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} |
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if ($oLayer->connectiontype == MS_POSTGIS && $db_processing == '3') |
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{ |
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//timestamp format is 2006-01-19 16:00 |
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$request_codar_db = date('Y-m-d H\:i', $codar_request_time); |
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$oLayer->setFilter('report_time_stamp = date_trunc(\'hour\',timestamp without time zone \''.$request_codar_db.'\')'); |
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} |
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// if ($oLayer->connectiontype == MS_POSTGIS && $db_processing == '2') |
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// { |
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// $request_time_db = date('Y-m-d H\:i', $request_time); |
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// $oLayer->setFilter('((select count(*) from current_prod where (report_time_stamp = date_trunc(\'hour\',timestamp without time zone \''.$request_time_db.'\'))) < 1)'); |
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// } |
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} |
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} |
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return true; |
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} |
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/** |
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* draw this widget |
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*/ |
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function DrawPublish() |
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{ |
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if (!$this->mbVisible) |
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return "<!-- Offset is hidden -->"; |
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if ($this->isVarSet( "SEL_OFFSET" )) |
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$szSelOffset = $this->getVar( "SEL_OFFSET" ); |
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else |
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$szSelOffset = ""; |
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if ($this->mszWidgetClass != "") |
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$szWidgetClass = " CLASS=\"".$this->mszWidgetClass."\""; |
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else |
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$szWidgetClass = ""; |
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$szResult = "<SELECT NAME=\"OFFSET\" onchange=\"changeOffset(this)\"$szWidgetClass>\n"; |
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if (isset( $this->maszContents["OFFSET"] )) |
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{ |
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foreach( $this->maszContents["OFFSET"] as $anOffset ) |
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{ |
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if (isset($anOffset["HOUR"])) |
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{ |
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$szResult .= "<OPTION VALUE=\"".$anOffset["HOUR"]."\" ". |
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(($szSelOffset==$anOffset["NAME"]) ? "SELECTED":""). |
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">".$anOffset["NAME"]."</OPTION>\n"; |
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} |
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else |
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{ |
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$_SESSION['gErrorManager']->setError(ERR_WARNING, |
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trim($this->moMLT->get("3", "ERROR: Invalid HOUR tag definition in TimeHandler.php."))); |
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} |
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} |
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} |
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$szResult .= "</SELECT></td>\n"; |
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if ($this->isVarSet( "NAV_OFFSET" ) && |
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$this->getVar( "NAV_OFFSET" ) != "") |
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{ |
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$timeOffset_end = $this->getVar( "NAV_OFFSET" ); |
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} |
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else |
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{ |
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$timeOffset_end = 2; |
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} |
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//Eastern Time |
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$EasternTime = time(); |
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// use offset to build request times |
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$request_time_end = $EasternTime - ($timeOffset_end * 60 * 60); |
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$timeOffset_begin = $timeOffset_end + 1; |
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$request_time_begin = $EasternTime - ($timeOffset_begin * 60 * 60); |
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//$timestamp_now = date('m-d-Y g\:\0\0 a'); |
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$timestamp_end = date('m-d-Y g\:\0\0 a', $request_time_end); |
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$timestamp_end_hour = date('g\:\0\0 a', $request_time_end); |
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$timestamp_begin = date('m-d-Y g\:\3\0 a', $request_time_begin); |
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$timestamp_begin_hour = date('m-d-Y g\:\3\0', $request_time_begin); |
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|
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//added to handle QuikSCAT overpass labeling - depends on request time of day |
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$request_hour = date ('G', $request_time_end); |
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//if request hour + offset is less than 9 (access time is 2am~9am), then use PM timestamp of the date prior or "no data" - this handles files that have not been created yet |
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if ($request_hour + $timeOffset_end < "9") |
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{ |
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//$quikscat_time = 'No overpass available'; |
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$request_date_prior = $request_time_end - (24 * 60 * 60); |
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$quikscat_time = date('m-d-Y \6\:\0\0\ - \7\:\0\0 \p\m', $request_date_prior); |
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} |
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//if request hour + offset is > 14 but < 22 (access time is 2pm~10pm), then AM timestamp should be returned or "no data" - this handles files that have not been created yet |
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elseif ($request_hour + $timeOffset_end > "14" && $request_hour + $timeOffset_end < "22") |
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{ |
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//$quikscat_time = 'No overpass available'; |
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$quikscat_time = date('m-d-Y \5\:\0\0\ - \7\:\0\0 \a\m', $request_time_end); |
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} |
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|
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//if request time is 1 Eastern and before or = 13 then QS time is 5am-7am of that date |
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elseif ($request_hour >= "1" AND $request_hour <= "13") |
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{ |
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$quikscat_time = date('m-d-Y \5\:\0\0\ - \7\:\0\0 \a\m', $request_time_end); |
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} |
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//if request time is 13 Eastern and before 23:59 then QS time is 6pm-7pm of that date |
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else |
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{ |
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$quikscat_time = date('m-d-Y \6\:\0\0\ - \7\:\0\0 \p\m', $request_time_end); |
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} |
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|
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//added b/c CODAR default will be -4 hrs |
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if ($this->getVar( "NAV_OFFSET" ) == "" OR |
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$this->getVar( "NAV_OFFSET" ) == "2" ) |
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{ |
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$codar_time_raw = $EasternTime - (4 * 60 * 60); |
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$codar_time = date('m-d-Y g\:\0\0 a', $codar_time_raw); |
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} |
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else |
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{ |
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$codar_time = $timestamp_end; |
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} |
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|
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//get RS timestamps for given offset |
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$avhrr_timestamp_raw = file_get_contents('http://seacoos3.marine.unc.edu/msapps/rs_timestamps/avhrrsst'.$timeOffset_end.'.txt'); |
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//$avhrr_timestamp = str_replace("/","-",$avhrr_timestamp_raw); |
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$avhrr_timestamp_utc = strtotime($avhrr_timestamp_raw); |
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$avhrr_timestamp_eastern = $avhrr_timestamp_utc - ($TimeDiff*60*60); |
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$avhrr_timestamp = date('m-d-Y g\:i a', $avhrr_timestamp_eastern); |
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|
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$modis_timestamp_raw = file_get_contents('http://seacoos3.marine.unc.edu/msapps/rs_timestamps/modissst'.$timeOffset_end.'.txt'); |
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//$avhrr_timestamp_utc = str_replace("/","-",$modis_timestamp_raw); |
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$modis_timestamp_utc = strtotime($modis_timestamp_raw); |
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$modis_timestamp_eastern = $modis_timestamp_utc - ($TimeDiff*60*60); |
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$modis_timestamp = date('m-d-Y g\:i a', $modis_timestamp_eastern); |
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|
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//return time table |
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//$szResult .="<tr><td>Now: </td><td>".$timestamp_now."</td></tr>\n"; |
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$szResult .="<td><b>Data Display Time: </b></td><td><b>".$timestamp_end."</b></td></tr>\n"; |
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$szResult .="<tr><td>SST, Water Level, & Wind:</td><td>".$timestamp_begin_hour." - ".$timestamp_end_hour."</td></tr>\n"; |
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$szResult .="<tr><td rowspan=\"6\"></td><td>Precipitation RADAR: </td><td>".$timestamp_end."</td></tr>\n"; |
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$szResult .="<tr><td colspan=\"2\"><hr></td></tr>\n"; |
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$szResult .="<tr><td>QuikSCAT winds: </td><td>".$quikscat_time."</td></tr>\n"; |
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$szResult .="<tr><td>Surface Currents (CODAR): </td><td>".$codar_time."</td></tr>\n"; |
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$szResult .="<tr><td>AVHRR SST: </td><td>".$avhrr_timestamp."</td></tr>\n"; |
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$szResult .="<tr><td>MODIS RGB/SST: </td><td>".$modis_timestamp."</td></tr>\n"; |
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|
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|
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$szResult = $this->moLabel->DrawPublish( $szResult ); |
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return $szResult; |
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} |
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} |
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370 |
?> |
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