I am trying to search for some entities of kind "Book" in datastore using codes below.But it is returning empty List.I get a empty result list with size=-1.Where am I getting wrong?
#ApiMethod(name = "searchBook")
public List<Book> searchBook(#Named("bookName") String bookName,#Named("languageId")String languageId, #Named("subjectId")String subjectId) {
EntityManager mgr = getEntityManager();
List<Book> bookList=new ArrayList<Book>();
String queryString="";
queryString="SELECT x FROM Book x WHERE ";
//If i dont want to set any parameter for some field, I send BLANK as the parameter..
if(bookName!=null && !bookName.matches("BLANK")){
queryString=queryString+"x.bookName =:bookName"+" AND ";
}
if(languageId!=null && !languageId.matches("BLANK")){
queryString=queryString+"x.languageId =:languageId"+" AND ";
}
if(subjectId!=null && !subjectId.matches("BLANK")){
queryString=queryString+"x.categoryId =:subjectId"+" AND ";
}
//Removing last word "AND" and whitespaces from the end of queryString
queryString=queryString.substring(0,queryString.length()-5);
Query q = mgr.createQuery(queryString);
//setting query parameters..
if(bookName!=null && !bookName.matches("BLANK")){
q.setParameter("bookName", bookName);
}
if(languageId!=null && !languageId.matches("BLANK")){
q.setParameter("languageId", languageId);
}
if(subjectId!=null && !subjectId.matches("BLANK")){
q.setParameter("subjectId", subjectId);
}
//executing the query...
try {
mgr.getTransaction().begin();
bookList = (List<Book>) q.getResultList();
mgr.getTransaction().commit();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}finally{
mgr.close();
}
return bookList;
}
In my case I have tested by setting only one parameter for subjectId. Is something wrong in setting parameters? Is this the correct way to set dynamic number of parameters in a query?
Related
I am working around with Salesforce and force.com API and metadata API, version 36.
I can create a custom field in a Lead object but by default I can see it's hidden and this means I cannot create a new Lead with these custom fields because it returns a bad request (400 status code).
Is there any way by Code to set the custom field Visible?
public boolean createCustomExtTextField(String name, LoginResult metadataLoginResult, int length) {
boolean success = false;
CustomField cs = new CustomField();
cs.setFullName("Lead."+name+"__c");
cs.setLabel("Custom"+name+"Field");
cs.setType(FieldType.LongTextArea);
cs.setLength(length);
cs.setVisibleLines(50); // max 50
try {
MetadataConnection metadataConnection = createMetadataConnection(metadataLoginResult);
SaveResult[] results = metadataConnection.createMetadata(new Metadata[] { cs });
for (SaveResult r : results) {
if (r.isSuccess()) {
success = true;
} else {
System.out.println("Errors were encountered while creating " + r.getFullName());
for (com.sforce.soap.metadata.Error e : r.getErrors()) {
System.out.println("Error message: " + e.getMessage());
System.out.println("Status code: " + e.getStatusCode());
}
}
}
} catch (ConnectionException e) {
e.printStackTrace();
}
return success;
}
I am googling a lot and don't find something that actually helped. So, any hints are welcomed. Thank you.
Finally found a solution to this. I final one for me was to make all custom fields REQUIRED.
CustomField cs = new CustomField();
cs.setFullName("Lead.YourCompanyName" + name + "__c");
cs.setLabel("YourCompanyName" + name);
cs.setRequired(true);
...
com.sforce.soap.enterprise.LoginResult metadataLoginResult = operations.loginToMetadata(username, password, "https://login.salesforce.com/services/Soap/c/36.0");
...
private boolean createFieldInMetadata(LoginResult metadataLoginResult, CustomField cs) {
boolean success = false;
try {
MetadataConnection metadataConnection = createMetadataConnection(metadataLoginResult);
SaveResult[] results = metadataConnection.createMetadata(new Metadata[] { cs });
for (SaveResult r : results) {
if (r.isSuccess()) {
success = true;
} else {
System.out.println("Errors were encountered while creating " + r.getFullName());
for (com.sforce.soap.metadata.Error e : r.getErrors()) {
System.out.println("Error message: " + e.getMessage());
System.out.println("Status code: " + e.getStatusCode());
}
}
}
} catch (Exception e) {
}
return success;
}
And so it will appear in the page layout. Very important to know, a required field cannot have just an empty value set, it must be something. So if not all custom fields are required in your logic and you wanna avoid the entire process of unzipping page layout and zipping it back (however it may be done) just add "N/A" or any char at choice to the required by code but not your project custom fields.
I managed to make the custom Field Level Security visible for "Admin" profile but not Field Accessability to visible. The latter is untested.
In the controller I have below function:
#RequestMapping(value = "administrator/listAuthor/{authorName}/{pageNo}", method = { RequestMethod.GET,
RequestMethod.POST }, produces = "application/json")
public List<Author> listAuthors(#PathVariable(value = "authorName") String authorName,
#PathVariable(value = "pageNo") Integer pageNo) {
try {
if (authorName == null) {
authorName = "";
}
if (pageNo == null) {
pageNo = 1;
}
return adminService.listAuthor(authorName, pageNo);
} catch (Exception e) {
e.printStackTrace();
return null;
}
}
This function fetches and returns data from mysql database based on "authorName" and "pageNo". For example, when "authorName = a" and "pageNo = 1" I have:
Data I get when "authorName = a" and "pageNo = 1"
Now I want to set "authorName" as ""(empty string), so that I can fetch all the data from mysql database (because the SQL statement "%+""+%" in backend will return all the data).
What can I do if I want to set authorName = empty string?
http://localhost:8080/spring/administrator/listAuthor/{empty string}/1
Thanks in advance!
I don't think that you can encode empty sting to url, what I suggest you to do is to declare some constant that will be your code to empty string - such as null.
Example:
administrator/listAuthor/null/90
Afterwards , on server side, check if authorName is null and set local parameter with empty stirng accordingly.
This is my code and i am using projection to display only specific columns and i am getting the result as array.But i want the output as json what can i do to get the output as json.
Please help me out
public List<Educationlevel> getAllEducationlevel() {
Session session = SessionFactoryUtil.getSessionFactory().openSession();
try {
session.beginTransaction();
Criteria criteria = session.createCriteria(Educationlevel.class);
ProjectionList projlist =Projections.projectionList();
projlist.add(Projections.property("education_level"));
projlist.add(Projections.property("education_level_id"));
projlist.add(Projections.property("country_id"));
criteria.add(Restrictions.eq("delete_flag", false));
criteria.setProjection(projlist);
return criteria.list();
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
session.getTransaction().commit();
session.close();
}
}
AND OUTPUT WHICH I AM GETTING
[["PG",0,2],["PHD",1,2]]
AND THE OUTPUT WHICH I AM EXPECTING
IN THIS I WANT only 3 columns say education_level_id,country_id,education_level
{
education_level_id: 0
country_id: 2
education_level: "PG"
delete_flag: false
insert_by: null
insert_date: "2015-10-19 12:49:52.0"
update_by: null
update_date: "2015-10-19 12:49:52.0"
}
JSONObject jo = new JSONObject();
jo.put("education_level", "PG");
jo.put("education_level_id", "0");
JSONArray ja = new JSONArray();
ja.put(jo);
I'm trying to get the count of unread email using google API, but not able. ANy help is highly appreciated. I'm not getting any error, but the count doesnt match the actual number shown in gmail.
try
{
String serviceAccountEmail = "xxx#developer.gserviceaccount.com";
var certificate = new X509Certificate2(#"C:\Projects\xxx\xyz\API Project-xxxxx.p12", "notasecret", X509KeyStorageFlags.Exportable);
ServiceAccountCredential credential = new ServiceAccountCredential(
new ServiceAccountCredential.Initializer(serviceAccountEmail)
{
User = "xxx#gmail.com",
Scopes = new[] { Google.Apis.Gmail.v1.GmailService.Scope.GmailReadonly }
}.FromCertificate(certificate));
var gmailservice = new Google.Apis.Gmail.v1.GmailService(new BaseClientService.Initializer()
{
HttpClientInitializer = credential,
ApplicationName = "GoogleApi3",
});
try
{
List<Message> lst = ListMessages(gmailservice, "xxx#gmail.com", "IN:INBOX IS:UNREAD");
}
catch (Exception e)
{
Console.WriteLine("An error occurred: " + e.Message);
}
}
catch (Exception ex)
{
}
Just do: labels.get(id="INBOX") and it has those types of stats (how many messages in that label, how many are unread, and same for threads).
https://developers.google.com/gmail/api/v1/reference/users/labels/get
You can use the ListMessages method from the API example (included for completeness) for searching:
private static List<Message> ListMessages(GmailService service, String userId, String query)
{
List<Message> result = new List<Message>();
UsersResource.MessagesResource.ListRequest request = service.Users.Messages.List(userId);
request.Q = query;
do
{
try
{
ListMessagesResponse response = request.Execute();
result.AddRange(response.Messages);
request.PageToken = response.NextPageToken;
}
catch (Exception e)
{
Console.WriteLine("An error occurred: " + e.Message);
}
} while (!String.IsNullOrEmpty(request.PageToken));
return result;
}
You can use this search method to find unread messages, for example like this:
List<Message> unreadMessageIDs = ListMessages(service, "me", "is:unread");
The q parameter (query) can be all kinds of stuff (it is the same as the gmail search bar on the top of the web interface), as documented here: https://support.google.com/mail/answer/7190?hl=en.
Note that you only a few parameters of the Message objects are set. If you want to retreive the messages you'll have to use GetMessage method from the api:
public static Message GetMessage(GmailService service, String userId, String messageId)
{
try
{
return service.Users.Messages.Get(userId, messageId).Execute();
}
catch (Exception e)
{
Console.WriteLine("An error occurred: " + e.Message);
}
return null;
}
I agree that the API is not straight forward and misses a lot of functionality.
Solution for .Net:
// Get UNREAD messages
public void getUnreadEmails(GmailService service)
{
UsersResource.MessagesResource.ListRequest Req_messages = service.Users.Messages.List("me");
// Filter by labels
Req_messages.LabelIds = new List<String>() { "INBOX", "UNREAD" };
// Get message list
IList<Message> messages = Req_messages.Execute().Messages;
if ((messages != null) && (messages.Count > 0))
{
foreach (Message List_msg in messages)
{
// Get message content
UsersResource.MessagesResource.GetRequest MsgReq = service.Users.Messages.Get("me", List_msg.Id);
Message msg = MsgReq.Execute();
Console.WriteLine(msg.Snippet);
Console.WriteLine("----------------------");
}
}
Console.Read();
}
Please note: I know for the question SolrNet - The given key was not present in the dictionary and I have initialized solr object just like Mauricio suggests.
I am using solr 4.6.0 and solrnet build #173, .net framework 4.0 and VS2012 for development. For some unknown reason I am receiving error 'The given key was not present in the dictionary'. I have a document with that id in solr, I've checked via browser. It's a document like any other document. Why is error popping up? My code (I've made a comment on the place where the error happens):
//establishes connection with solr
private void ConnectToSolr()
{
try
{
if (_solr != null) return;
Startup.Init<Register>(SolrAddress);
_solr = ServiceLocator.Current.GetInstance<ISolrOperations<Register>>();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
//Returns snippets from solr as BindingSource
public BindingSource GetSnippets(string searchTerm, DateTime? startDate = null, DateTime? endDate = null)
{
ConnectToSolr();
string dateQuery = startDate == null
? ""
: endDate == null
? "savedate:\"" + convertDateToSolrFormat(startDate) + "\"" //only start date
: "savedate:[" + convertDateToSolrFormat(startDate) + " TO " +
convertDateToSolrFormat(endDate) + "]";//range between start and end date
string textQuery = string.IsNullOrEmpty(searchTerm) ? "text:*" : "text:*" + searchTerm + "*";
List<Register> list = new List<Register>();
SolrQueryResults<Register> results;
string currentId = "";
try
{
results = _solr.Query(textQuery,
new QueryOptions
{
Highlight = new HighlightingParameters
{
Fields = new[] { "*" },
},
ExtraParams = new Dictionary<string, string>
{
{"fq", dateQuery},
{"sort", "savedate desc"}
}
});
for (int i = 0; i < results.Highlights.Count; i++)
{
currentId = results[i].Id;
var h = results.Highlights[currentId];
if (h.Snippets.Count > 0)
{
list.Add(new Register//here the error "the given key was not present in the dictionary pops up
{
Id = currentId,
ContentLiteral = h.Snippets["content"].ToArray()[0].Trim(new[]{' ', '\n'}),
SaveDateLiteral = results[i].SaveDate.ToShortDateString()
});
}
}
BindingList<Register> bindingList = new BindingList<Register>(list);
BindingSource bindingSource = new BindingSource();
bindingSource.DataSource = bindingList;
return bindingSource;
}
catch(Exception e)
{
MessageBox.Show(string.Format("{0}\nId:{1}", e.Message, currentId), "Solr error");
return null;
}
}
I've found out what's causing the problem: saving empty documents into solr. If I make an empty query (with text:*) through solrnet (usually I do this if I want to see all saved documents) and empty document is one of saved docs, then 'The given key is not present in dictionary pops up'. If all of the documents have text in them, this error doesn't pop up.
If you document contains fields with types other than string and you index null value to a double or integer field you will get the same error.
solr query return the null field as:
<null name="fieldname"/>
should be
<double name="fieldname">0.0</double>
or
<double name="fieldname"/>