<?php

// @usage: throw new Api_OwsException("Access Denied to Create field '{$fieldName}' in object '{$typeName}.{$pkObject}'", __LINE__, null, 'MissingFieldPermCreate', 'request');

// example:
// <ows:ExceptionReport
//	 xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ows="http://www.opengis.net/ows/1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.1.0" xsi:schemaLocation="http://www.opengis.net/ows/1.1 https://demo.boundlessgeo.com/geoserver/schemas/ows/1.1.0/owsAll.xsd">
//	 <ows:Exception exceptionCode="MissingParameterValue" locator="request">
//		 <ows:ExceptionText>Could not determine geoserver request from http request org.geoserver.platform.AdvancedDispatchFilter$AdvancedDispatchHttpRequest@4183f02c</ows:ExceptionText>
//	 </ows:Exception>
// </ows:ExceptionReport>

class Api_OwsException extends Exception {

	public $wfsCode = '';
	public $wfsLocator = '';

	public function __construct($message, $code = 0, Exception $previous = null, $wfsCode = '', $wfsLocator = '') {
		$this->wfsCode = $wfsCode;
		$this->wfsLocator = $wfsLocator;
		parent::__construct($message, $code, $previous);
	}

	public function generateResponseXml() {
		$xmlWriter = new XMLWriter();
		if (!$xmlWriter) throw new HttpException("Error no XMLWriter", 404);
		// $xmlWriter->openUri('php://output');
		$xmlWriter->openMemory();
		$xmlWriter->setIndent(true);
		$xmlWriter->startDocument('1.0','UTF-8');
		$xmlWriter->startElement('ows:ExceptionReport');
		{
			$xmlWriter->writeAttribute('xmlns:xs', 'http://www.w3.org/2001/XMLSchema');
			$xmlWriter->writeAttribute('xmlns:ows', 'http://www.opengis.net/ows/1.1');
			$xmlWriter->writeAttribute('xmlns:xsi', 'http://www.w3.org/2001/XMLSchema-instance');
			$xmlWriter->writeAttribute('xsi:schemaLocation', 'http://www.opengis.net/ows/1.1 https://demo.boundlessgeo.com/geoserver/schemas/ows/1.1.0/owsAll.xsd');
			$xmlWriter->writeAttribute('version', '1.1.0');
			$xmlWriter->startElement('ows:Exception');
			{
				if ($this->wfsCode) $xmlWriter->writeAttribute('exceptionCode', $this->wfsCode);
				if ($this->wfsLocator) $xmlWriter->writeAttribute('locator', $this->wfsLocator);
				$xmlWriter->startElement('ows:ExceptionText');
				{
					$xmlWriter->text($this->message);
				}
				$xmlWriter->endElement();// ows:ExceptionText
			}
			$xmlWriter->endElement();// ows:Exception
		}
		$xmlWriter->endElement();// ows:ExceptionReport
		$xmlWriter->endDocument();
		return $xmlWriter->outputMemory(true);
	}

	public function sendResponseXml() {
		header('Content-type: application/xml');
		echo $this->generateResponseXml();
	}

}