| /******************************************************************************* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| ******************************************************************************/ |
| package org.apache.olingo.odata2.annotation.processor.core.datasource; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.lang.reflect.Method; |
| import java.util.Arrays; |
| |
| import org.apache.olingo.odata2.api.edm.EdmException; |
| import org.apache.olingo.odata2.api.edm.EdmMapping; |
| import org.apache.olingo.odata2.api.edm.EdmProperty; |
| import org.apache.olingo.odata2.api.edm.EdmSimpleTypeKind; |
| import org.apache.olingo.odata2.api.exception.ODataException; |
| import org.apache.olingo.odata2.api.exception.ODataHttpException; |
| import org.apache.olingo.odata2.api.exception.ODataNotFoundException; |
| |
| /** |
| * Data access. |
| */ |
| public class BeanPropertyAccess implements ValueAccess { |
| |
| @Override |
| public <T> Object getPropertyValue(final T data, final EdmProperty property) throws ODataException { |
| return getValue(data, getGetterMethodName(property)); |
| } |
| |
| @Override |
| public <T, V> void setPropertyValue(final T data, final EdmProperty property, final V value) throws ODataException { |
| final String methodName = getSetterMethodName(getGetterMethodName(property)); |
| if (methodName != null) { |
| setValue(data, methodName, value); |
| } |
| } |
| |
| @Override |
| public <T> Class<?> getPropertyType(final T data, final EdmProperty property) throws ODataException { |
| return getType(data, getGetterMethodName(property)); |
| } |
| |
| @Override |
| public <T> Object getMappingValue(final T data, final EdmMapping mapping) throws ODataException { |
| if (mapping != null && mapping.getMediaResourceMimeTypeKey() != null) { |
| return getValue(data, mapping.getMediaResourceMimeTypeKey()); |
| } |
| return null; |
| } |
| |
| @Override |
| public <T, V> void setMappingValue(final T data, final EdmMapping mapping, final V value) throws ODataException { |
| if (mapping != null && mapping.getMediaResourceMimeTypeKey() != null) { |
| setValue(data, getSetterMethodName(mapping.getMediaResourceMimeTypeKey()), value); |
| } |
| } |
| |
| private String getGetterMethodName(final EdmProperty property) throws EdmException { |
| final String prefix = isBooleanProperty(property) ? "is" : "get"; |
| final String defaultMethodName = prefix + property.getName(); |
| return property.getMapping() == null || property.getMapping().getInternalName() == null ? |
| defaultMethodName : property.getMapping().getInternalName(); |
| } |
| |
| private boolean isBooleanProperty(final EdmProperty property) throws EdmException { |
| return property.isSimple() |
| && property.getType() == EdmSimpleTypeKind.Boolean.getEdmSimpleTypeInstance(); |
| } |
| |
| private String getSetterMethodName(final String getterMethodName) { |
| return getterMethodName.contains(".") ? |
| null : getterMethodName.replaceFirst("^is", "set").replaceFirst("^get", "set"); |
| } |
| |
| private <T> Object getValue(final T data, final String methodName) throws ODataNotFoundException { |
| Object dataObject = data; |
| |
| for (final String method : methodName.split("\\.", -1)) { |
| if (dataObject != null) { |
| try { |
| dataObject = dataObject.getClass().getMethod(method).invoke(dataObject); |
| } catch (SecurityException e) { |
| throw new ODataNotFoundException(ODataHttpException.COMMON, e); |
| } catch (NoSuchMethodException e) { |
| throw new ODataNotFoundException(ODataHttpException.COMMON, e); |
| } catch (IllegalArgumentException e) { |
| throw new ODataNotFoundException(ODataHttpException.COMMON, e); |
| } catch (IllegalAccessException e) { |
| throw new ODataNotFoundException(ODataHttpException.COMMON, e); |
| } catch (InvocationTargetException e) { |
| throw new ODataNotFoundException(ODataHttpException.COMMON, e); |
| } |
| } |
| } |
| |
| return dataObject; |
| } |
| |
| private <T, V> void setValue(final T data, final String methodName, final V value) |
| throws ODataNotFoundException { |
| try { |
| boolean found = false; |
| for (final Method method : Arrays.asList(data.getClass().getMethods())) { |
| if (method.getName().equals(methodName)) { |
| found = true; |
| final Class<?> type = method.getParameterTypes()[0]; |
| if (value == null) { |
| if (type.equals(byte.class) || type.equals(short.class) || type.equals(int.class) |
| || type.equals(long.class) || type.equals(char.class)) { |
| method.invoke(data, 0); |
| } else if (type.equals(float.class) || type.equals(double.class)) { |
| method.invoke(data, 0.0); |
| } else if (type.equals(boolean.class)) { |
| method.invoke(data, false); |
| } else { |
| method.invoke(data, value); |
| } |
| } else { |
| method.invoke(data, value); |
| } |
| break; |
| } |
| } |
| if (!found) { |
| throw new ODataNotFoundException(null); |
| } |
| } catch (SecurityException e) { |
| throw new ODataNotFoundException(null, e); |
| } catch (IllegalArgumentException e) { |
| throw new ODataNotFoundException(null, e); |
| } catch (IllegalAccessException e) { |
| throw new ODataNotFoundException(null, e); |
| } catch (InvocationTargetException e) { |
| throw new ODataNotFoundException(null, e); |
| } |
| } |
| |
| private <T> Class<?> getType(final T data, final String methodName) throws ODataNotFoundException { |
| if (data == null) { |
| throw new ODataNotFoundException(ODataHttpException.COMMON); |
| } |
| |
| Class<?> type = data.getClass(); |
| for (final String method : methodName.split("\\.", -1)) { |
| try { |
| type = type.getMethod(method).getReturnType(); |
| if (type.isPrimitive()) { |
| if (type == boolean.class) { |
| type = Boolean.class; |
| } else if (type == byte.class) { |
| type = Byte.class; |
| } else if (type == short.class) { |
| type = Short.class; |
| } else if (type == int.class) { |
| type = Integer.class; |
| } else if (type == long.class) { |
| type = Long.class; |
| } else if (type == float.class) { |
| type = Float.class; |
| } else if (type == double.class) { |
| type = Double.class; |
| } |
| } |
| } catch (final SecurityException e) { |
| throw new ODataNotFoundException(ODataHttpException.COMMON, e); |
| } catch (final NoSuchMethodException e) { |
| throw new ODataNotFoundException(ODataHttpException.COMMON, e); |
| } |
| } |
| return type; |
| } |
| } |