public ODataContext mockWithoutOnJPAWriteContent() throws ODataException {
ODataContext context = EasyMock.createMock(ODataContext.class);
EasyMock.expect(context.getService()).andReturn(odataService).anyTimes();
EasyMock.expect(context.getPathInfo()).andReturn(pathInfo).anyTimes();
EasyMock.expect(context.isInBatchMode()).andReturn(this.isInBatchMode).anyTimes();
ODataJPAServiceFactoryMock mockServiceFactory = new ODataJPAServiceFactoryMock(context);
mockServiceFactory.initializeODataJPAContextX();
EasyMock.expect(context.getServiceFactory()).andReturn(mockServiceFactory).anyTimes();
EasyMock.replay(context);
return context;
}
/**
* Return a Conversation entity representing a two-party connection between the authenticated user
* and the specified target user id. If such a two-way Conversation already exists, return that,
* otherwise return a new Conversation.
*
* @param targetMessageUserId the OChat user entity to connect with
* @return the two-way Conversation entity
* @throws ODataException
*/
@EdmFunctionImport(
returnType = @ReturnType(type = Type.ENTITY, isCollection = false),
entitySet = "Conversations",
httpMethod = HttpMethod.GET)
public Conversation createConversation(
@EdmFunctionImportParameter(name = "TargetUserId", facets = @EdmFacets(nullable = false))
final Integer targetMessageUserId)
throws ODataException {
Conversation result = null;
EntityManager em = Utility.getEntityManagerFactory().createEntityManager();
if (targetMessageUserId <= 0) {
throw new ODataException("Invalid TargetUserId");
}
/*
* Get the authenticated username
*/
ODataContext ctx = ODataJPAContextImpl.getContextInThreadLocal();
HttpServletRequest r =
(HttpServletRequest) ctx.getParameter(ODataContext.HTTP_SERVLET_REQUEST_OBJECT);
String user = r.getRemoteUser();
MessageUser u1 = null;
if (user != null) {
u1 = IdentityInteraction.verifyUser(r, em);
logger.debug("username from HttpServletRequest '" + u1.getUsername() + "'");
} else {
// This error will have the side effect of returning an empty result set
logger.error(
"Assertion error: There is no authenticated user defined in the HttpServletRequest -- "
+ "check your web.xml application configuration");
throw new ODataException(
"There is no authenticated user defined in the HttpServletRequest -- "
+ "check your web.xml application configuration");
}
// Determine if there is already a conversation that
// includes exactly the target user and the authenticated user.
// If so, return that without making and changes to data.
// If not, create a new Conversation.
TypedQuery<Conversation> queryBP;
try {
// Select all Conversations where the authenticated user is a member.
queryBP =
em.createQuery(
"SELECT DISTINCT E1 from Conversation E1 JOIN E1.messageUsers E0 "
+ "WHERE E0.username = :user ORDER BY E1.conversationId",
Conversation.class);
queryBP.setParameter("user", user);
// Look for a Conversation that contains only the authenticated and target user
boolean found = false;
for (Conversation c : queryBP.getResultList()) {
while (!found) {
// must be a two person conversation
if (c.getMessageUsers().size() == 2) {
for (MessageUser u : c.getMessageUsers()) {
if (u.getUserId() == targetMessageUserId.intValue()) {
found = true;
result = c;
break;
}
}
}
}
}
// If a two-person conversation didn't exist, create it
if (!found) {
MessageUser u2 = em.find(MessageUser.class, targetMessageUserId);
if (u2 == null) {
throw new ODataException("Invalid TargetUserId");
}
em.getTransaction().begin();
result = new Conversation();
result.setName(u1.getDisplayableName() + ", " + u2.getDisplayableName());
result.setMessageUsers(new ArrayList<MessageUser>());
result.getMessageUsers().add(u1);
result.getMessageUsers().add(u2);
em.persist(result);
em.getTransaction().commit();
}
} catch (Exception e) {
throw new ODataException(e.getMessage());
}
return result;
}
