/**
* Forwards requests to resource.
*
* @param name
* @param response
* @param request
* @param layers
* @param center
* @param zoom
* @param size
* @param format
* @throws WmsException
*/
@RequestMapping(
value = "/{name}/redirect",
method = RequestMethod.GET,
produces = "application/json; charset=utf-8")
public void forwardWmsMap(
@PathVariable String name,
HttpServletResponse response,
HttpServletRequest request,
@RequestParam String layers,
@RequestParam(required = false) String center,
@RequestParam(required = false) String zoom,
@RequestParam(required = false) String size,
@RequestParam(required = false) String format)
throws WmsException {
if (LOGGER.isDebugEnabled())
LOGGER.debug(
"Received params: \nlayers="
+ layers
+ "\ncenter="
+ center
+ "\nzoom="
+ zoom
+ "\nsize="
+ size
+ "\nformat="
+ format);
WmsEntity wmsEntity = wmsRepository.findByName(name);
if (wmsEntity == null) {
// no WMS entity for given ID
throw new HttpClientErrorException(
HttpStatus.BAD_REQUEST, "No WMS entity for name given in URL; name=" + name);
}
WmsCapabilities capabilities = wmsService.getCapabilities(wmsEntity.getUrl());
if (capabilities == null) {
// no WMS entity for given ID
throw new HttpClientErrorException(
HttpStatus.FAILED_DEPENDENCY, "Incorrect answer from WMS resource");
}
LayerWrap availableLayers = capabilities.getCapability().getLayerWrap();
try {
center =
center != null
? center
: configService.getStringValueForConfigVariable("wms.params.center");
zoom = zoom != null ? zoom : configService.getStringValueForConfigVariable("wms.params.zoom");
size = size != null ? size : configService.getStringValueForConfigVariable("wms.params.size");
format =
format != null
? format
: configService.getStringValueForConfigVariable("wms.params.format");
validate(request, layers, center, zoom, size, format, availableLayers);
String[] centerParts = center.split(",");
String[] sizeParts = size.split("x");
String url =
getUrl(
false,
wmsEntity,
capabilities,
layers,
Double.parseDouble(centerParts[0]),
Double.parseDouble(centerParts[1]),
Integer.parseInt(zoom),
Integer.parseInt(sizeParts[0]),
Integer.parseInt(sizeParts[1]),
format);
response.sendRedirect(url);
} catch (IOException e) {
LOGGER.error(e);
if (LOGGER.isDebugEnabled()) LOGGER.debug("WMS: IOException", e);
throw new HttpServerErrorException(HttpStatus.INTERNAL_SERVER_ERROR, e.getMessage());
} catch (ConfigException e) {
LOGGER.error(e);
if (LOGGER.isDebugEnabled()) LOGGER.debug("WMS: ConfigException", e);
throw new HttpServerErrorException(HttpStatus.INTERNAL_SERVER_ERROR, e.getMessage());
}
}
/**
* Get selected map encoded in Base64 code.
*
* @param name - resource name.
* @param layers - coma separated list of selected layers.
* @param center - coma separated coordinates of center point.
* @param zoom - zoom value, default is 10.
* @param size - size of returned image.
* @param format - image format, ie. png
* @return ResponseEntity with result.
*/
@RequestMapping(
value = "/{name}/getmap",
method = RequestMethod.GET,
produces = "application/json; charset=utf-8")
public ResponseEntity getWmsMap(
@PathVariable String name,
@RequestParam String layers,
@RequestParam(required = false) String center,
@RequestParam(required = false) String zoom,
@RequestParam(required = false) String size,
@RequestParam(required = false) String format) {
try {
LOGGER.info("getWmsMap");
WmsEntity wmsEntity = wmsRepository.findByName(name);
Assert.notNull(wmsEntity, "No WMS entity for given name.");
WmsCapabilities capabilities = wmsService.getCapabilities(wmsEntity.getUrl());
if (LOGGER.isDebugEnabled())
LOGGER.debug(
"Received params: \nlayers="
+ layers
+ "\ncenter="
+ center
+ "\nzoom="
+ zoom
+ "\nsize="
+ size
+ "\nformat="
+ format);
center =
center != null
? center
: configService.getStringValueForConfigVariable("wms.params.center");
zoom = zoom != null ? zoom : configService.getStringValueForConfigVariable("wms.params.zoom");
size = size != null ? size : configService.getStringValueForConfigVariable("wms.params.size");
format =
format != null
? format
: configService.getStringValueForConfigVariable("wms.params.format");
String[] centerParts = center.split(",");
Assert.notNull(centerParts, "Param center has wrong format.");
Assert.isTrue(centerParts.length == 2, "Param center has wrong format.");
Assert.isInstanceOf(
Double.class, Double.parseDouble(centerParts[0]), "Param center has wrong format.");
Assert.isInstanceOf(
Double.class, Double.parseDouble(centerParts[1]), "Param center has wrong format.");
String[] sizeParts = size.split("x");
Assert.notNull(sizeParts, "Param size has wrong format.");
Assert.isTrue(sizeParts.length == 2, "Param size has wrong format.");
Assert.isInstanceOf(
Integer.class, Integer.parseInt(sizeParts[0]), "Param size has wrong format.");
Assert.isInstanceOf(
Integer.class, Integer.parseInt(sizeParts[1]), "Param size has wrong format.");
Assert.isInstanceOf(Integer.class, Integer.parseInt(zoom), "Param zoom has wrong format.");
Assert.isTrue((format.equals("png") || format.equals("gif")), "Param format is invalid.");
String url =
getUrl(
true,
wmsEntity,
capabilities,
layers,
Double.parseDouble(centerParts[0]),
Double.parseDouble(centerParts[1]),
Integer.parseInt(zoom),
Integer.parseInt(sizeParts[0]),
Integer.parseInt(sizeParts[1]),
format);
// WmsApiResponse response = new WmsApiResponse();
// response.setResult(wmsService.getMap(url));
WmsApiBase64MapResponse response = new WmsApiBase64MapResponse();
response.setBase64map(wmsService.getMap(url));
return new ResponseEntity<>(response, HttpStatus.OK);
} catch (NumberFormatException e) {
LOGGER.error(e);
if (LOGGER.isDebugEnabled()) LOGGER.debug("WMS: NumberFormatException", e);
return new ResponseEntity<>("NumberFormatException", HttpStatus.BAD_REQUEST);
} catch (IllegalArgumentException e) {
LOGGER.error(e);
if (LOGGER.isDebugEnabled()) LOGGER.debug("WMS: IllegalArgumentException", e);
return new ResponseEntity<String>(e.getMessage(), HttpStatus.BAD_REQUEST);
} catch (WmsException e) {
LOGGER.error(e);
if (LOGGER.isDebugEnabled()) LOGGER.debug("WMS: WmsException", e);
return new ResponseEntity<>(e.getMessage(), HttpStatus.SERVICE_UNAVAILABLE);
} catch (Exception e) {
LOGGER.fatal(e);
if (LOGGER.isDebugEnabled()) LOGGER.debug("WMS: Exception", e);
return new ResponseEntity<>(e.getMessage(), HttpStatus.INTERNAL_SERVER_ERROR);
}
}