@Test
public void testMarshall_Embedded() {
RootEntity rootObject = new RootEntity(); // one entity
ChildEntity childObject = new ChildEntity("Test City");
ChildEntity embeddedObject = new ChildEntity("Old Test City");
embeddedObject.setId(1L);
embeddedObject.setType("EmbeddedType");
rootObject.setId("TestUser");
rootObject.setCount(25);
childObject.setParent(rootObject);
rootObject.setNewChildEntity(childObject); // one entity
rootObject.setEmbeddedEntity(embeddedObject); // not included, @Embedded
IdentityHashMap<Object, Entity> stack = testMarshaller.marshall(null, rootObject);
Entity rootObjectEntity = stack.get(rootObject);
Entity childObjectEntity = stack.get(childObject);
EmbeddedEntity ee = (EmbeddedEntity) rootObjectEntity.getProperty("embeddedEntity");
Key childKey = (Key) rootObjectEntity.getProperty("newChildEntity");
Key parentKey = childKey.getParent();
assertEquals(2, stack.size());
assertNotNull(parentKey);
assertEquals(EmbeddedEntity.class, ee.getClass());
assertTrue(childKey instanceof Key);
assertEquals(rootObjectEntity.getKey().getId(), parentKey.getId());
assertEquals(rootObjectEntity.getKey().getName(), parentKey.getName());
assertEquals(1L, ee.getProperties().get("id"));
assertEquals("EmbeddedType", ee.getProperties().get("type"));
}
public Serializable getCacheableObject(String feedUri) throws Exception {
JSONObject json = new JSONObject();
PreparedQuery pq = datastoreService.prepare(new Query("feeds"));
for (Entity entity : pq.asIterable()) {
JSONObject item = new JSONObject();
item.put("uri", "/addama/feeds/" + entity.getKey().getName());
item.put("creator", entity.getProperty("creator").toString());
json.append("items", item);
}
return json.toString();
}
@Test
public void test() {
Entity parent = new Entity("Parent");
// set parent properties...
List<EmbeddedEntity> children = new ArrayList<EmbeddedEntity>();
for (int i = 0; i < 5; i++) {
EmbeddedEntity child = new EmbeddedEntity();
// set child properties...
children.add(child);
}
parent.setUnindexedProperty("children", children);
parent.setUnindexedProperty("children2", list("tag1", "tag2", "tag3"));
DatastoreServiceFactory.getDatastoreService().put(parent);
try {
Entity e = DatastoreServiceFactory.getDatastoreService().get(parent.getKey());
e.getKey();
Object children2 = e.getProperty("children2");
assertTrue(children2 instanceof List);
} catch (EntityNotFoundException e1) {
e1.printStackTrace();
}
}
private String valueToHtml(final Entity entity, final Entity point, final Value value) {
final StringBuilder sb = new StringBuilder(SIZE);
if (!(Double.compare(value.getDoubleValue(), Const.CONST_IGNORED_NUMBER_VALUE) == 0)) {
sb.append("<img style=\"float:left\" src=\"")
.append(ServerInfoImpl.getFullServerURL(this.getThreadLocalRequest()));
switch (value.getAlertState()) {
case LowAlert:
sb.append("/resources/images/point_low.png\">");
break;
case HighAlert:
sb.append("/resources/images/point_high.png\">");
break;
case IdleAlert:
sb.append("/resources/images/point_idle.png\">");
break;
case OK:
sb.append("/resources/images/point_ok.png\">");
break;
}
}
if (entity != null && point != null) {
sb.append(" ");
if (!(Double.compare(value.getDoubleValue(), Const.CONST_IGNORED_NUMBER_VALUE) == 0)) {
sb.append("Alert Status:").append(value.getAlertState().name());
sb.append("<br>Value:").append(value.getDoubleValue());
}
if (!Utils.isEmptyString(value.getNote())) {
sb.append("<br>Note:").append(value.getNote());
}
sb.append("<a href=\"#\" onclick=\"window.open('report.html?uuid=")
.append(point.getKey())
.append("', 'Report',")
.append("'height=800,width=800,toolbar=0,status=0,location=0' );\" >")
.append(" [more]</a>");
}
return sb.toString();
}
@Test
public void testMarshall_Child() {
RootEntity rootObject = new RootEntity(); // one entity
ChildEntity childObject = new ChildEntity("Test City");
rootObject.setId("TestUser");
rootObject.setCount(25);
childObject.setParent(rootObject);
rootObject.setNewChildEntity(childObject); // one entity
IdentityHashMap<Object, Entity> stack = testMarshaller.marshall(null, rootObject);
Entity rootObjectEntity = stack.get(rootObject);
Entity childObjectEntity = stack.get(childObject);
Key childKey = (Key) rootObjectEntity.getProperty("newChildEntity");
Key parentKey = childKey.getParent();
assertEquals(2, stack.size());
assertNotNull(parentKey);
assertTrue(childKey instanceof Key);
assertEquals(rootObjectEntity.getKey().getId(), parentKey.getId());
assertEquals(rootObjectEntity.getKey().getName(), parentKey.getName());
}
@Override
public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
resp.setContentType("text/html");
resp.getWriter().println("<html><body>");
String keyname = req.getParameter("keyname");
String value = req.getParameter("value");
DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
// Using the synchronous cache.
MemcacheService syncCache = MemcacheServiceFactory.getMemcacheService();
syncCache.setErrorHandler(ErrorHandlers.getConsistentLogAndContinue(Level.INFO));
// display every element of kind TaskData for /datastore
if (req.getParameterMap().isEmpty()) {
// querying from datastore
resp.getWriter().println("<h3>Datastore results:</h3>");
List<String> listOfKeys = new ArrayList<String>();
Query q = new Query("TaskData");
PreparedQuery pq = datastore.prepare(q);
for (Entity result : pq.asIterable()) {
String datastore_key = result.getKey().getName();
String taskData_value = (String) result.getProperty("value");
Date taskData_date = (Date) result.getProperty("date");
resp.getWriter()
.println(
"<p>keyname = "
+ datastore_key
+ " value = "
+ taskData_value
+ " date = "
+ taskData_date.toString()
+ "</p>");
listOfKeys.add(datastore_key);
}
// check which of the keys exist in memcache
String memcache_value;
resp.getWriter().println("<h3>Memcache results:</h3>");
for (String datastore_key : listOfKeys) {
memcache_value = (String) syncCache.get(datastore_key);
if (memcache_value != null) {
// String decoded = new String(memcache_value, "UTF-8");
resp.getWriter()
.println("<p>keyname = " + datastore_key + " value = " + memcache_value + "</p>");
}
}
}
// display element of kind TaskData with key=keyname
else if (keyname != null && value == null) {
// first check in the cache
String memcache_value = (String) syncCache.get(keyname); // Read from cache.
// Get value from datastore
Key task_key = KeyFactory.createKey("TaskData", keyname);
try {
Entity tne = datastore.get(task_key);
if (memcache_value == null) {
resp.getWriter().println("<h2>Datastore</h2>");
} else {
resp.getWriter().println("<h2>Both</h2>");
}
} catch (EntityNotFoundException e) {
resp.getWriter().println("<h2>Neither</h2>");
}
}
// store element of kind TaskData with key=keyname and value=value
else if (keyname != null && value != null) {
Entity tne = new Entity("TaskData", keyname);
tne.setProperty("value", value);
tne.setProperty("date", new Date());
datastore.put(tne);
syncCache.put(keyname, value); // Populate cache.
resp.getWriter()
.println("<h2>Stored " + keyname + " and " + value + " in Datastore and Memcache</h2>");
} else {
resp.getWriter().println("<h2>You entered wrong query parameters</h2>");
}
/*
Entity tne = new Entity("TaskData", "Person");
alice.setProperty("gender", "female");
alice.setProperty("age", 20);
*/
resp.getWriter().println("</body></html>");
}
