org.apache.olingo.odata2.annotation.processor.core.datasource.AnnotationValueAccess Maven / Gradle / Ivy
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package org.apache.olingo.odata2.annotation.processor.core.datasource;
import org.apache.olingo.odata2.annotation.processor.core.util.AnnotationHelper;
import org.apache.olingo.odata2.api.edm.EdmMapping;
import org.apache.olingo.odata2.api.edm.EdmProperty;
import org.apache.olingo.odata2.api.exception.ODataException;
import org.apache.olingo.odata2.api.exception.ODataNotImplementedException;
// TODO: Auto-generated Javadoc
/**
* The Class AnnotationValueAccess.
*/
public class AnnotationValueAccess implements ValueAccess {
/** The annotation helper. */
private final AnnotationHelper annotationHelper = new AnnotationHelper();
/**
* Retrieves the value of an EDM property for the given data object.
*
* @param the generic type
* @param data the Java data object
* @param property the requested {@link EdmProperty}
* @return the requested property value
* @throws ODataException the o data exception
*/
@Override
public Object getPropertyValue(final T data, final EdmProperty property) throws ODataException {
if (data == null) {
return null;
} else if (annotationHelper.isEdmAnnotated(data)) {
return annotationHelper.getValueForProperty(data, property.getName());
}
throw new ODataNotImplementedException(ODataNotImplementedException.COMMON);
}
/**
* Sets the value of an EDM property for the given data object.
*
* @param the generic type
* @param the value type
* @param data the Java data object
* @param property the {@link EdmProperty}
* @param value the new value of the property
* @throws ODataException the o data exception
*/
@Override
public void setPropertyValue(final T data, final EdmProperty property, final V value) throws ODataException {
if (data != null) {
if (annotationHelper.isEdmAnnotated(data)) {
annotationHelper.setValueForProperty(data, property.getName(), value);
} else {
throw new ODataNotImplementedException(ODataNotImplementedException.COMMON);
}
}
}
/**
* Retrieves the Java type of an EDM property for the given data object.
*
* @param the generic type
* @param data the Java data object
* @param property the requested {@link EdmProperty}
* @return the requested Java type
* @throws ODataException the o data exception
*/
@Override
public Class getPropertyType(final T data, final EdmProperty property) throws ODataException {
if (data == null) {
return null;
} else if (annotationHelper.isEdmAnnotated(data)) {
Class fieldType = annotationHelper.getFieldTypeForProperty(data, property.getName());
if (fieldType == null) {
throw new ODataException("No field type found for property " + property);
}
return fieldType;
}
throw new ODataNotImplementedException(ODataNotImplementedException.COMMON);
}
/**
* Retrieves the value defined by a mapping object for the given data object.
*
* @param the generic type
* @param data the Java data object
* @param mapping the requested {@link EdmMapping}
* @return the requested value
* @throws ODataException the o data exception
*/
@Override
public Object getMappingValue(final T data, final EdmMapping mapping) throws ODataException {
if (mapping != null && mapping.getMediaResourceMimeTypeKey() != null) {
return annotationHelper.getValueForProperty(data, mapping.getMediaResourceMimeTypeKey());
}
return null;
}
/**
* Sets the value defined by a mapping object for the given data object.
*
* @param the generic type
* @param the value type
* @param data the Java data object
* @param mapping the {@link EdmMapping}
* @param value the new value
* @throws ODataException the o data exception
*/
@Override
public void setMappingValue(final T data, final EdmMapping mapping, final V value) throws ODataException {
if (mapping != null && mapping.getMediaResourceMimeTypeKey() != null) {
annotationHelper.setValueForProperty(data, mapping.getMediaResourceMimeTypeKey(), value);
}
}
}