/**
* A helper method that serializes the element object.
*
* @param stream the stream to which the element should be serialized.
* @throws IOException if an IO error occured or a property was not serializable.
*/
private void writeObject(final ObjectOutputStream stream) throws IOException {
stream.defaultWriteObject();
final ReportAttributeMap attributes = this.attributes;
stream.writeLong(attributes.getChangeTracker());
final String[] nameSpaces = attributes.getNameSpaces();
stream.writeObject(nameSpaces);
for (int i = 0; i < nameSpaces.length; i++) {
final String nameSpace = nameSpaces[i];
final String[] names = attributes.getNames(nameSpace);
stream.writeObject(names);
for (int j = 0; j < names.length; j++) {
final String name = names[j];
final Object attribute = attributes.getAttribute(nameSpace, name);
final AttributeMetaData data = getMetaData().getAttributeDescription(nameSpace, name);
if (data != null) {
if (data.isTransient()) {
stream.writeByte(1);
continue;
}
if (attribute instanceof ResourceKey) {
final ResourceKey key = (ResourceKey) attribute;
final ResourceKey parent = key.getParent();
if (AttributeNames.Core.NAMESPACE.equals(nameSpace)
&& (AttributeNames.Core.CONTENT_BASE.equals(name)
|| AttributeNames.Core.SOURCE.equals(name))) {
if (parent != null) {
// unwrap the content base attribute. After deserialization, the report assumes the
// bundle-location
// as content base, as the bundle will be gone.
if (isKeySerializable(parent)) {
stream.writeByte(0);
SerializerHelper.getInstance().writeObject(parent, stream);
} else {
stream.writeByte(1);
}
} else {
// great, the report was never part of a bundle. That makes life easier and the key
// should be
// safely serializable too.
if (isKeySerializable(key)) {
stream.writeByte(0);
SerializerHelper.getInstance().writeObject(key, stream);
} else {
stream.writeByte(1);
}
}
} else {
if ("Resource".equals(data.getValueRole()) || parent != null) {
stream.writeByte(0);
try {
final ResourceKey resourceKey =
ResourceKeyUtils.embedResourceInKey(
locateResourceManager(), key, key.getFactoryParameters());
SerializerHelper.getInstance().writeObject(resourceKey, stream);
} catch (ResourceException e) {
throw new IOException("Failed to convert resource-key into byte-array key: " + e);
}
} else {
stream.writeByte(0);
SerializerHelper.getInstance().writeObject(attribute, stream);
}
}
} else if (SerializerHelper.getInstance().isSerializable(attribute)) {
stream.writeByte(0);
SerializerHelper.getInstance().writeObject(attribute, stream);
} else {
stream.writeByte(1);
}
} else if (attribute instanceof String) {
stream.writeByte(0);
SerializerHelper.getInstance().writeObject(attribute, stream);
} else {
stream.writeByte(1);
}
}
}
}
public void copyInto(final Element target) {
final ElementMetaData metaData = getMetaData();
final String[] attributeNamespaces = getAttributeNamespaces();
for (int i = 0; i < attributeNamespaces.length; i++) {
final String namespace = attributeNamespaces[i];
final String[] attributeNames = getAttributeNames(namespace);
for (int j = 0; j < attributeNames.length; j++) {
final String name = attributeNames[j];
final AttributeMetaData attributeDescription =
metaData.getAttributeDescription(namespace, name);
if (attributeDescription == null) {
continue;
}
if (attributeDescription.isTransient()) {
continue;
}
if (attributeDescription.isComputed()) {
continue;
}
if (AttributeNames.Core.ELEMENT_TYPE.equals(name)
&& AttributeNames.Core.NAMESPACE.equals(namespace)) {
continue;
}
target.setAttribute(namespace, name, getAttribute(namespace, name), false);
}
}
final String[] attrExprNamespaces = getAttributeExpressionNamespaces();
for (int i = 0; i < attrExprNamespaces.length; i++) {
final String namespace = attrExprNamespaces[i];
final String[] attributeNames = getAttributeExpressionNames(namespace);
for (int j = 0; j < attributeNames.length; j++) {
final String name = attributeNames[j];
final AttributeMetaData attributeDescription =
metaData.getAttributeDescription(namespace, name);
if (attributeDescription == null) {
continue;
}
if (attributeDescription.isTransient()) {
continue;
}
target.setAttributeExpression(namespace, name, getAttributeExpression(namespace, name));
}
}
final ElementStyleSheet styleSheet = getStyle();
final StyleKey[] styleKeys = styleSheet.getDefinedPropertyNamesArray();
for (int i = 0; i < styleKeys.length; i++) {
final StyleKey styleKey = styleKeys[i];
if (styleKey != null) {
target.getStyle().setStyleProperty(styleKey, styleSheet.getStyleProperty(styleKey));
}
}
final Set<Map.Entry<StyleKey, Expression>> styleExpressionEntries =
getStyleExpressions().entrySet();
for (final Map.Entry<StyleKey, Expression> entry : styleExpressionEntries) {
target.setStyleExpression(entry.getKey(), entry.getValue());
}
}