public Applications toApplications() {
Map<String, Application> appsByName = new HashMap<>();
Iterator<InstanceInfo> it = serviceIterator();
while (it.hasNext()) {
InstanceInfo instanceInfo = it.next();
Application instanceApp = appsByName.get(instanceInfo.getAppName());
if (instanceApp == null) {
instanceApp = new Application(instanceInfo.getAppName());
appsByName.put(instanceInfo.getAppName(), instanceApp);
}
instanceApp.addInstance(instanceInfo);
}
// Do not pass application list to the constructor, as it does not initialize properly
// Applications
// data structure.
Applications applications = new Applications();
for (Application app : appsByName.values()) {
applications.addApplication(app);
}
applications.setAppsHashCode(applications.getReconcileHashCode());
return applications;
}
/*
* (non-Javadoc)
*
* @see
* com.thoughtworks.xstream.converters.Converter#marshal(java.lang.Object
* , com.thoughtworks.xstream.io.HierarchicalStreamWriter,
* com.thoughtworks.xstream.converters.MarshallingContext)
*/
@Override
public void marshal(
Object source, HierarchicalStreamWriter writer, MarshallingContext context) {
Applications apps = (Applications) source;
writer.startNode(VERSIONS_DELTA);
writer.setValue(apps.getVersion().toString());
writer.endNode();
writer.startNode(APPS_HASHCODE);
writer.setValue(apps.getAppsHashCode());
writer.endNode();
for (Application app : apps.getRegisteredApplications()) {
writer.startNode(NODE_APP);
context.convertAnother(app);
writer.endNode();
}
}
public Applications takeDelta(int count) {
if (currentIt == null) {
currentIt = serviceIterator();
allApplications = new Applications();
}
List<InstanceInfo> instanceBatch = new ArrayList<InstanceInfo>();
for (int i = 0; i < count; i++) {
InstanceInfo next = currentIt.next();
next.setActionType(ActionType.ADDED);
instanceBatch.add(next);
}
Applications nextBatch = EurekaEntityFunctions.toApplications(toApplicationMap(instanceBatch));
allApplications = mergeApplications(allApplications, nextBatch);
nextBatch.setAppsHashCode(allApplications.getAppsHashCode());
return nextBatch;
}
/*
* (non-Javadoc)
*
* @see
* com.thoughtworks.xstream.converters.Converter#unmarshal(com.thoughtworks
* .xstream.io.HierarchicalStreamReader,
* com.thoughtworks.xstream.converters.UnmarshallingContext)
*/
@Override
public Object unmarshal(HierarchicalStreamReader reader, UnmarshallingContext context) {
Applications apps = new Applications();
while (reader.hasMoreChildren()) {
reader.moveDown();
String nodeName = reader.getNodeName();
if (NODE_APP.equals(nodeName)) {
apps.addApplication((Application) context.convertAnother(apps, Application.class));
} else if (VERSIONS_DELTA.equals(nodeName)) {
apps.setVersion(Long.valueOf(reader.getValue()));
} else if (APPS_HASHCODE.equals(nodeName)) {
apps.setAppsHashCode(reader.getValue());
}
reader.moveUp();
}
return apps;
}