I have a third party class SpecialObject as:
public class SpecialObject {
private String name;
private Integer id;
private Date date;
public String getFoo() {return "foo";} //Outlier
public String getName() { return name;}
public Integer getId() {return id;}
public Date getDate() {return date;}
public void setName(String name) {this.name = name;}
public void setId(Integer id) {this.id = id;}
public void setDate(Date date) {this.date = date;}
}
I wish to only project out name and date properties when serializing it. Using the magic of MixinAnnotation from Jackson, I created a Mixin interface as:
#JsonAutoDetect(getterVisibility = Visibility.NONE)
public interface SpecialObjectMixin {
#JsonProperty
public String getName();
#JsonProperty
public Date getDate();
}
In order to facilitate handling of this SpecialObject as parameter, I have also defined a SpecialObjectHandler which implements the fromString() method.
#Override
public SpecialObject fromString(String json) {
try {
return objectMapper.readValue(json, SpecialObject.class);
} catch (IOException exception) {
throw new IllegalArgumentException("Unable to write JSON output",
exception);
}
}
When the deserializer invokes this method, the objectMapper throws an error as
Caused by: org.codehaus.jackson.map.exc.UnrecognizedPropertyException: Unrecognized field "foo" (Class com.kilo.SpecialObject), not marked as ignorable
at [Source: java.io.StringReader#2d2217da; line: 1, column: 60] (through reference chain: com.kilo.SpecialObject["foo"])
at org.codehaus.jackson.map.exc.UnrecognizedPropertyException.from(UnrecognizedPropertyException.java:53)
at org.codehaus.jackson.map.deser.StdDeserializationContext.unknownFieldException(StdDeserializationContext.java:267)
at org.codehaus.jackson.map.deser.std.StdDeserializer.reportUnknownProperty(StdDeserializer.java:673)
at org.codehaus.jackson.map.deser.std.StdDeserializer.handleUnknownProperty(StdDeserializer.java:659)
at org.codehaus.jackson.map.deser.BeanDeserializer.handleUnknownProperty(BeanDeserializer.java:1365)
at org.codehaus.jackson.map.deser.BeanDeserializer._handleUnknown(BeanDeserializer.java:725)
at org.codehaus.jackson.map.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:703)
at org.codehaus.jackson.map.deser.BeanDeserializer.deserialize(BeanDeserializer.java:580)
at org.codehaus.jackson.map.ObjectMapper._readMapAndClose(ObjectMapper.java:2732)
at org.codehaus.jackson.map.ObjectMapper.readValue(ObjectMapper.java:1863)
at com.kilo.SpecialObjectHandler.fromString(SpecialObjectHandler.java:34)
My question is that is there a way that I can have the objectMapper (org.codehaus.jackson.map.ObjectMapper) also honor annotations from the Mixin where I had configured it to only deal with name and date? Feel free to point out something elementary that I may have overlooked. Thanks in advance!
It was a problem with configuration. The mixin was only set on the serialization config and not on the deserialization config causing the issue. Setting it on both configs solves the problem.
Related
I want to create a keyword search referring to "UserName__c" api on Salesforce Apex class.
compile error Unexpected token 'UserName__c'.
public with sharing class AccountListCon {
static List<String> TARGET_FIELDS = new List<String>{
'Name'
,'UserName__c'
,'CompanyName__c'
};
public SearchCondition condition{ get;set; }
public String UserName__c results { get;set; }
public String sortingField { get;set; }
public void init(){
this.condition = new SearchCondition();
this.results = new String UserName__c();
}
public PageReference clear(){
init();
return null;
}
There is no such type String UserName__c. It's not entirely clear what you want to do here, but I suspect you intend just to declare a String variable. The fact that you're looking for values in some field whose API name is UserName__c is not relevant to the type system
public String UserName__c results { get;set; } is wrong. Is this supposed to be just
public String results { get;set; } ?
I receive following error message when I try to add Location for externalization. Please advise how to externalize the Location object. Please advise.
See the code used for Storage and Externalization
code:
addOfflineCommand("location", latitude, longitude, time1);
latitude - double data type;
longitude - double data type;
time1 - long data type;
private void addOfflineCommand(String name, Object... args) {
List<OfflineCommand> l_noAppt = (List<OfflineCommand>)
Storage.getInstance().readObject(appName + user + "-offlineCommandsLocEnc");
l_noAppt.add(new OfflineCommand(name, args));
}
Please see the Error Message below:
[EDT] 0:4:37,444 - Exception: java.io.IOException - Object type not supported: com.codename1.location.Location value: altitude = 1000.0
latitude40.714353
longtitude-74.00597299999998
direction0.0
timeStamp1529000278457
velocity50.0
at java.io.DataInputStream.readFully(DataInputStream.java:197)
at java.io.DataInputStream.readUTF(DataInputStream.java:609)
at java.io.DataInputStream.readUTF(DataInputStream.java:564)
at com.codename1.io.Util.readObject(Util.java:562)
at com.codename1.io.Util.readObject(Util.java:595)
at com.X.Xmobile.server.OfflineCommand.internalize(OfflineCommand.java:40)
at com.codename1.io.Util.readObject(Util.java:689)
at com.codename1.io.Util.readObject(Util.java:664)
at com.codename1.io.Storage.readObject(Storage.java:261)
at com.X.Xmobile.server.ServerImpl.addOfflineCommand(ServerImpl.java:1165)
at com.X.Xmobile.server.ServerImpl.finishActivity(ServerImpl.java:1504)
at com.X.Xmobile.forms.CommentForm.lambda$new$3(CommentForm.java:70)
java.io.IOException: Object type not supported: com.codename1.location.Location value: altitude = 1000.0
latitude40.714353
longtitude-74.00597299999998
direction0.0
timeStamp1529000278457
velocity50.0
at com.codename1.io.Util.writeObject(Util.java:457)
at com.codename1.io.Util.writeObject(Util.java:394)
at com.X.Xmobile.server.OfflineCommand.externalize(OfflineCommand.java:34)
at com.codename1.io.Util.writeObject(Util.java:258)
at com.codename1.io.Util.writeObject(Util.java:286)
at com.codename1.io.Storage.writeObject(Storage.java:224)
at com.X.Xmobile.server.ServerImpl.addOfflineCommand(ServerImpl.java:1201)
at com.X.Xmobile.server.ServerImpl.finishActivity(ServerImpl.java:1504)
[EDT] 0:6:4,551 - Exception: java.io.IOException - Object type not supported: com.co
Following is the class OfflineCommand class created which is used for externalization.
public class OfflineCommand implements Externalizable {
private static final int VERSION = 1;
private String name;
private Object[] arguments;
public OfflineCommand() {}
public OfflineCommand(String name, Object... args) {
this.name = name;
this.arguments = args;
}
#Override
public int getVersion() {
return VERSION;
}
#Override
public void externalize(DataOutputStream out) throws IOException {
Util.writeUTF(name, out);
Util.writeObject(arguments, out);
}
#Override
public void internalize(int version, DataInputStream in) throws IOException {
name = Util.readUTF(in);
arguments = (Object[])Util.readObject(in);
}
#Override
public String getObjectId() {
return "OfflineCommand";
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Object[] getArguments() {
return arguments;
}
public void setArguments(Object[] arguments) {
this.arguments = arguments;
}
}
Location isn't externalizable. It doesn't support object serialization explicitly. Normally you would need to convert the write/read data to work with the location data instead of the location object. However, since your code is generic you would need to extend location to implement externalizable.
public class ExternalizableLocation extends Location implements Externalizable {
// implement the externalizable interface here...
}
In your init(Object) class register ExternalizableLocation as externalizable and in every place where you store a Location object replace it with ExternalizableLocation.
Using Spring boot 1.5.6.RELEASE.
I have the following mongo document base class:
#Document(collection="validation_commercial")
public abstract class Tier {
#Id
private String id;
#DateTimeFormat(iso = DateTimeFormat.ISO.DATE_TIME)
private Date created;
#Field("tran")
private Tran tran;
public Tier() {
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public Date getCreated() {
return created;
}
public void setCreated(Date created) {
this.created = created;
}
public Tran getTran() {
return tran;
}
public void setTran(Tran tran) {
this.tran = tran;
}
}
which is then extended:
public class Tier1 extends Tier {
#Field("tier1")
private Tier1Programs tier1;
public Tier1() {
this.tier1 = new Tier1Programs();
}
public Tier1Programs getTier1() {
return tier1;
}
public void setTier1(Tier1Programs tier1) {
this.tier1 = tier1;
}
}
which in turn is extended:
public class Tier2 extends Tier1 {
#Field("tier2")
private Tier2Programs tier2;
public Tier2() {
this.tier2 = new Tier2Programs();
}
public Tier2Programs getTier2() {
return tier2;
}
public void setTier2(Tier2Programs tier2) {
this.tier2 = tier2;
}
}
There is a Tier1 Supervisor (Spring Boot Application) that uses the Tier1 class within the MongoRepository interface:
public interface Tier1Repository extends MongoRepository<Tier1,String>{}
for retrieving and saving - no issue.
I then have a Tier2 Supervisor (Spring Boot Application) that uses a Tier1 Repository (for retrieving the Tier1 document and a Tier2 Repository for saving the Tier2 document:
#Repository("tier1Repository")
public interface Tier1Repository extends MongoRepository<Tier1,String>{}
#Repository("tier2Repository")
public interface Tier2Repository extends MongoRepository<Tier2,String>{}
My service is:
#Service
public class TierService {
#Qualifier("tier1Repository")
#Autowired
private final Tier1Repository tier1Repository;
#Qualifier("tier2Repository")
#Autowired
private final Tier2Repository tier2Repository;
public TierService(#Qualifier("tier1Repository") Tier1Repository tier1Repository, #Qualifier("tier2Repository") Tier2Repository tier2Repository) {
this.tier1Repository = tier1Repository;
this.tier2Repository = tier2Repository;
}
public Tier1 findOne(String id) {
return tier1Repository.findOne(id);
}
public void SaveTier(Tier2 tier) {
tier2Repository.save(tier);
}
public Tier1Repository getTier1Repository() {
return tier1Repository;
}
public Tier2Repository getTier2Repository() {
return tier2Repository;
}
}
and finally the app:
#EnableAutoConfiguration(exclude = {DataSourceAutoConfiguration.class,
DataSourceTransactionManagerAutoConfiguration.class, JdbcTemplateAutoConfiguration.class})
#Configuration
#ComponentScan(basePackages = {"com.k12commercial.tier2supervisor"})
#ImportResource("classpath:application-context.xml")
public class Application implements CommandLineRunner {
#Autowired
private IReceiver raBidNetPriceReceiver;
#Autowired
private UdyDataSourceFactory udyDSRegistry;
public static void main(String[] args) throws InterruptedException {
try {
SpringApplication.run(Application.class, args);
} catch (Exception e) {
e.printStackTrace();
}
}
#Override
public void run(String... args) throws Exception {
raBidNetPriceReceiver.processTierMessages();
exit(0);
}
}
When I run the Tier2 Supervisor from the command line I get the following error:
org.springframework.beans.factory.UnsatisfiedDependencyException:
Error creating bean with name 'tierService' defined in URL
[jar:file:/opt/java-commandline/tier2supervisor-1.0.jar!/BOOT-INF/classes!/com/k12commercial/tier2supervisor/service/TierService.class]: Unsatisfied dependency expressed through constructor parameter 1; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tier2Repository': Invocation of init method failed; nested exception is org.springframework.data.mapping.model.MappingException: Ambiguous field mapping detected! Both private final java.lang.reflect.Type org.springframework.data.util.TypeDiscoverer.type and private final java.lang.Class org.springframework.data.util.ClassTypeInformation.type map to the same field name type! Disambiguate using #Field annotation!
I am not sure if the issue is Tier2 extending Tier1 (did try putting #Document tag above Tier1 and Tier2 with no change). I think I have marked the relevant fields so don't understand the need to disambiguate. I thought the issue was having 2 repositories (Spring Boot not knowing which one to DI) so removed the Tier1Repository - didn't work. Tried better qualifying the repositories but still got the same error. I made Tier1 and Tier2 #Transient and that got rid of the message but also removed the tier1 section in the mongo document - so wrong correction.
Thinking it is an annotation fix but not seeing it...
Please advise - thank you.
Sorry for the delay (I got pulled away to work on something else) and thank you to those who responded.
The issue was I had a MongoTemplate in my Tier level programs e.g.Tier2Programs (sub library) which Spring Boot was trying to autowire.
By moving the Mongo (CRUD) requirements to the supervisor level (I also replaced the Repositories with one MongoTemplate to simplify) I removed the ambiguity. (I also removed the Service class).
The code is contained with the RaBidNetReciever class
#Component
public class RaBidNetPriceReceiver extends BaseReceiver implements IReceiver, ApplicationEventPublisherAware {
private static final Logger LOGGER = LoggerFactory.getLogger(RaBidNetPriceReceiver.class);
private final RabbitTemplate raBidNetPriceRabbitTemplate;
public RaBidNetPriceReceiver(MongoTemplate mongoTemplate, RabbitTemplate raBidNetPriceRabbitTemplate) {
super(mongoTemplate);
this.raBidNetPriceRabbitTemplate = raBidNetPriceRabbitTemplate;
}
#Transactional
public void processTierMessages() {
try {
while (true) {
gson = getGsonBuilder().create();
byte[] body = (byte[]) raBidNetPriceRabbitTemplate.receiveAndConvert();
if (body == null) {
setFinished(true);
break;
}
tier1Message = gson.fromJson(new String(body), Tier1Message.class);
// document a 'Tier1' type so retrieve Tier1 first...
Tier1 tier1 = mongoTemplate.findById(tier1Message.getId(), Tier1.class);
Tier2Message tier2Message = new Tier2Message(tier1Message.getTran(), tier1Message.getId());
Tier2Process tierProcess = getTierProcess(tier2Message.getTran().getK12ArchitectureId());
Tier2 tier2 = new Tier2();
tier2.setId(tier1.getId());
tier2.setTier1Programs(tier1.getTier1Programs());
tier2.setCreated(tier1.getCreated());
tier2.setTran(tier1.getTran());
tierProcess.setTier(tier2);
tier2 = tier2.getTier2Programs().getRaBidNetPriceProgram().process(tierProcess);
mongoTemplate.save(tier2);
if (tier2.getTier2Programs().getRaBidNetPriceProgram().isFinished()) {
// publish event
publisher.publishEvent(new ProgramEvent(this, "FINISHED", tier2Message));
}
}
} catch (Exception e) {
LOGGER.error("id: " + tier1Message.getId() + " " + e.getMessage());
}
}
#Override
public void setApplicationEventPublisher(ApplicationEventPublisher applicationEventPublisher) {
this.publisher = applicationEventPublisher;
}
}
Thank you,
So I have this class:
public class CustomValueSourceParser extends ValueSourceParser {
#Override
public ValueSource parse(FunctionQParser fqp) throws ParseException {
...
List<ValueSource> valSources = fqp.parseValueSourceList();
String iComeFromTheSolrFunctionArguments =
((LiteralValueSource)valSources.get(0)).getValue();
String iComeFromTheSolrQuery;
return new CustomValueSource(iComeFromTheSolrQuery, iComeFromTheSolrFunctionArguments);
}
}
I'd like to take the variable iComeFromTheSolrQuery from the solr query itself--not from the function arguments (because I will be calling the function multiple times and this string is very large).
Is there a way to do this? I tried adding a field to the search criteria, and then calling fqp.getParams(FIELD_NAME), but nothing came through.
Ideas?
Figured it out. What I wanted was to add a paramater. Not a field. When Formulating the query, I did this:
ModifiableSolrParams params = new ModifiableSolrParams();
params.set(PARAM_NAME_CONSTANT, paramValueString);
solrQuery.add(params);
Then in the above code I got the parameter like this:
public class CustomValueSourceParser extends ValueSourceParser {
#Override
public ValueSource parse(FunctionQParser fqp) throws ParseException {
...
List<ValueSource> valSources = fqp.parseValueSourceList();
String iComeFromTheSolrFunctionArguments =
((LiteralValueSource)valSources.get(0)).getValue();
String iComeFromTheSolrQuery=fqp.getParam(PARAM_NAME_CONSTANT);
return new CustomValueSource(iComeFromTheSolrQuery, iComeFromTheSolrFunctionArguments);
}
}
How do I obtain values of an array that is located inside a java object in a jsp page?
I have set an object attribute so that in the jsp page I can call the object like so
${obj.property}
My question is how would I obtain property String [] example from Object obj?
<c:forEach var="prop" items="${obj.example}">
<td>${prop}</td>
</c:forEach>
I get Errors that tell me the class obj.Obj does not have the property property 'example'
and obviously I don't get the data out.
Actual errors:
org.apache.jasper.JasperException: javax.el.PropertyNotFoundException: The class 'roommate.Roommate' does not have the property 'favProfessors'.
javax.el.PropertyNotFoundException: The class 'roommate.Roommate' does not have the property 'favProfessors'
And my actual class:
package roommate;
public class Roommate{
public String firstname;
public String lastname;
public String gender;
public String place;
public String[] favProfessors;
public Roommate(String fname, String lname, String roommateGender, String hangout,String[] professors) {
firstname= fname;
lastname= lname;
gender= roommateGender;
place= hangout;
favProfessors= professors;
}
public String getFirstname()
{
return firstname;
}
public void setFirstname(String newFirstname)
{
this.firstname = newFirstname;
}
public String getLastname()
{
return lastname;
}
public void setLastname(String newLastname)
{
this.lastname = newLastname;
}
public String getGender()
{
return gender;
}
public void setGender(String newGender)
{
this.gender = newGender;
}
public String getHangout()
{
return place;
}
public void setHangout(String newPlace)
{
this.place = newPlace;
}
public String[] getProfessors()
{
return favProfessors;
}
public void setProfessors(final String[] newfavProfessors)
{
this.favProfessors = newfavProfessors;
}
public void addRoommate(String fname, String lname, String roommateGender, String hangout,String[] professors)
{
}
}
I create the object in my servlet as well ass the Atrribute
String [] profArray = request.getParameterValues("professor");
Roommate roommate= new Roommate(
session.getAttribute("fname").toString(),
session.getAttribute("lname").toString(),
session.getAttribute("gender").toString(),
session.getAttribute("hangout").toString(),
profArray);
session.setAttribute("roommate",roommate);
I asked this earlier but did not receive a clear answer. I think my issue is in pulling the data out in the jsp alone in my forEach that I mentioned at the top
javax.el.PropertyNotFoundException: The class 'roommate.Roommate' does not have the property 'favProfessors'
Java is right. You do not have a getFavProfessors() method in that class. It's instead the following:
public String[] getProfessors()
{
return favProfessors;
}
You have 2 options: use ${roommate.professors} instead, or fix the getter method name to be getFavProfessors().
In contrary to what most starters think, EL does not access private properties directly. EL just calls the public getter/setter methods according the Javabeans specification. The real private property behind it can have a completely different name or even not exist at all.