public static void writeWorkItem(MarshallerWriteContext context, WorkItem workItem)
throws IOException {
ObjectOutputStream stream = context.stream;
stream.writeLong(workItem.getId());
stream.writeLong(workItem.getProcessInstanceId());
stream.writeUTF(workItem.getName());
stream.writeInt(workItem.getState());
// Work Item Parameters
Map<String, Object> parameters = workItem.getParameters();
Collection<Object> notNullValues = new ArrayList<Object>();
for (Object value : parameters.values()) {
if (value != null) {
notNullValues.add(value);
}
}
stream.writeInt(notNullValues.size());
for (String key : parameters.keySet()) {
Object object = parameters.get(key);
if (object != null) {
stream.writeUTF(key);
ObjectMarshallingStrategy strategy =
context.objectMarshallingStrategyStore.getStrategyObject(object);
String strategyClassName = strategy.getClass().getName();
stream.writeInt(-2); // backwards compatibility
stream.writeUTF(strategyClassName);
if (strategy.accept(object)) {
strategy.write(stream, object);
}
}
}
}
@PreUpdate
public void update() {
this.state = workItem.getState();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
MarshallerWriteContext context = new MarshallerWriteContext(baos, null, null, null, null);
OutputMarshaller.writeWorkItem(context, workItem);
context.close();
this.workItemByteArray = baos.toByteArray();
} catch (IOException e) {
throw new IllegalArgumentException(
"IOException while storing workItem " + workItem.getId() + ": " + e.getMessage());
}
}