comparison: src/main/java/de/uapcore/lightpit/AbstractLightPITServlet.java
src/main/java/de/uapcore/lightpit/AbstractLightPITServlet.java
- changeset 83
- 24a3596b8f98
- parent 80
- 27a25f32048e
- child 86
- 0a658e53177c
equal
deleted
inserted
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| 82:4ec7f2600c83 | 83:24a3596b8f98 |
|---|---|
| 37 import javax.servlet.http.HttpServlet; | 37 import javax.servlet.http.HttpServlet; |
| 38 import javax.servlet.http.HttpServletRequest; | 38 import javax.servlet.http.HttpServletRequest; |
| 39 import javax.servlet.http.HttpServletResponse; | 39 import javax.servlet.http.HttpServletResponse; |
| 40 import javax.servlet.http.HttpSession; | 40 import javax.servlet.http.HttpSession; |
| 41 import java.io.IOException; | 41 import java.io.IOException; |
| 42 import java.lang.reflect.Constructor; | 42 import java.lang.reflect.*; |
| 43 import java.lang.reflect.InvocationTargetException; | |
| 44 import java.lang.reflect.Method; | |
| 45 import java.lang.reflect.Modifier; | |
| 46 import java.sql.Connection; | 43 import java.sql.Connection; |
| 47 import java.sql.SQLException; | 44 import java.sql.SQLException; |
| 48 import java.util.*; | 45 import java.util.*; |
| 49 import java.util.function.Function; | 46 import java.util.function.Function; |
| 50 | 47 |
| 278 * @param name the name of the parameter | 275 * @param name the name of the parameter |
| 279 * @param <T> the expected type | 276 * @param <T> the expected type |
| 280 * @return the parameter value or an empty optional, if no parameter with the specified name was found | 277 * @return the parameter value or an empty optional, if no parameter with the specified name was found |
| 281 */ | 278 */ |
| 282 protected <T> Optional<T> getParameter(HttpServletRequest req, Class<T> clazz, String name) { | 279 protected <T> Optional<T> getParameter(HttpServletRequest req, Class<T> clazz, String name) { |
| 283 final String paramValue = req.getParameter(name); | 280 if (clazz.isArray()) { |
| 284 if (paramValue == null) return Optional.empty(); | 281 final String[] paramValues = req.getParameterValues(name); |
| 285 if (clazz.equals(Boolean.class)) { | 282 int len = paramValues == null ? 0 : paramValues.length; |
| 286 if (paramValue.toLowerCase().equals("false") || paramValue.equals("0")) { | 283 final var array = (T) Array.newInstance(clazz.getComponentType(), len); |
| 287 return Optional.of((T)Boolean.FALSE); | 284 for (int i = 0 ; i < len ; i++) { |
| 288 } else { | 285 try { |
| 289 return Optional.of((T)Boolean.TRUE); | 286 final Constructor<?> ctor = clazz.getComponentType().getConstructor(String.class); |
| 290 } | 287 Array.set(array, i, ctor.newInstance(paramValues[i])); |
| 291 } | 288 } catch (ReflectiveOperationException e) { |
| 292 if (clazz.equals(String.class)) return Optional.of((T) paramValue); | 289 throw new RuntimeException(e); |
| 293 if (java.sql.Date.class.isAssignableFrom(clazz)) { | 290 } |
| 291 } | |
| 292 return Optional.of(array); | |
| 293 } else { | |
| 294 final String paramValue = req.getParameter(name); | |
| 295 if (paramValue == null) return Optional.empty(); | |
| 296 if (clazz.equals(Boolean.class)) { | |
| 297 if (paramValue.toLowerCase().equals("false") || paramValue.equals("0")) { | |
| 298 return Optional.of((T) Boolean.FALSE); | |
| 299 } else { | |
| 300 return Optional.of((T) Boolean.TRUE); | |
| 301 } | |
| 302 } | |
| 303 if (clazz.equals(String.class)) return Optional.of((T) paramValue); | |
| 304 if (java.sql.Date.class.isAssignableFrom(clazz)) { | |
| 305 try { | |
| 306 return Optional.of((T) java.sql.Date.valueOf(paramValue)); | |
| 307 } catch (IllegalArgumentException ex) { | |
| 308 return Optional.empty(); | |
| 309 } | |
| 310 } | |
| 294 try { | 311 try { |
| 295 return Optional.of((T)java.sql.Date.valueOf(paramValue)); | 312 final Constructor<T> ctor = clazz.getConstructor(String.class); |
| 296 } catch (IllegalArgumentException ex) { | 313 return Optional.of(ctor.newInstance(paramValue)); |
| 297 return Optional.empty(); | 314 } catch (ReflectiveOperationException e) { |
| 298 } | 315 throw new RuntimeException(e); |
| 299 } | 316 } |
| 300 try { | 317 } |
| 301 final Constructor<T> ctor = clazz.getConstructor(String.class); | |
| 302 return Optional.of(ctor.newInstance(paramValue)); | |
| 303 } catch (ReflectiveOperationException e) { | |
| 304 throw new RuntimeException(e); | |
| 305 } | |
| 306 | |
| 307 } | 318 } |
| 308 | 319 |
| 309 /** | 320 /** |
| 310 * Tries to look up an entity with a key obtained from a request parameter. | 321 * Tries to look up an entity with a key obtained from a request parameter. |
| 311 * | 322 * |
