I am running a basic GWT application in IntelliJ, below is my code
public class test implements EntryPoint {
/**
* This is the entry point method.
*/
public void onModuleLoad() {
final Button button = new Button("Click me");
final Label label = new Label();
button.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
if (label.getText().equals("")) {
testService.App.getInstance().getMessage("h", new AsyncCallback<Inter>() {
public void onFailure(Throwable caught) {
//To change body of implemented methods use File | Settings | File Templates.
}
public void onSuccess(Inter result) {
label.setText(result.getToken());
}
});
} else {
label.setText("");
}
}
});
Impl Class
public class testServiceImpl extends RemoteServiceServlet implements testService {
// Implementation of sample interface method
public Inter getMessage(String msg) {
RdbHelper rdbHelper = new RdbHelper();
return rdbHelper.getMsg();
}
}
RdbHelper Class
public class RdbHelper {
public Inter getMsg(){
Inter inter = new Inter();
return inter;
}
}
Inter Class
public class Inter implements Serializable{
private String token ;
public String getToken() {
token = "Hello";
return token;
}
public void setToken(String token) {
this.token = token;
}
}
I should see msg "Hello" but i am getting this error .
ERROR: Errors in 'file:/C:/work/Grails/TestFinal/src/com/test/client/test.java'.
ERROR: Unable to find type 'com.test.client.test'.
ERROR: Line 28: No source code is available for type com.test.shared.Inter; did you forget to inherit a required module?.
ERROR: Hint: Previous compiler errors may have made this type unavailable.
ERROR: Hint: Check the inheritance chain from your module; it may not be inheriting a required module or a module may not be adding its source path entries properly.
ERROR: Failed to load module 'test' from user agent 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.7 (KHTML, like Gecko) Chrome/16.0.912.75 Safari/535.7' at 127.0.0.1:51070.
Note: I am trying the same thing in Eclipse and its working fine, but this is the Issue i am facing in IntelliJ
Did you remember to put
<source path="shared"/>
in your Module.gwt.xml file.
You need to do this to compile the code in shared package to javascript code. If not it only compiles the code in the client package and thereby the code in the shared folder is not available on client side.
Related
I m trying create unit tests for one project.I m facing a problem because when I try control the result of an interface(mock). When the code get the Interface variable that return a NullPointerException.
Firstly I tried #Override the method in my test class (ClassA), but it don't work. After that I tried mock the interface object and control the comportment with Mockito.When().tehnReturn();
I will put here my code, I read some solutions but none works.
My Interface:
#FunctionalInterface
public interface Interface {
UpdateXResponse process(UpdateXRequest request) throws Exception;
}
The class I want to test:
#Service(ClassA.class)
public class ClassA extends VService implements UpdateX {
#Reference
#Inject
private Interface interface;
#Inject
public ClassA(...) {...}
#Override
public UpdateXResponse process(UpdateXRequest request) throws Exception {
UpdateXResponse response = initResponse(context, request, new UpdateXResponse());
UpdateXInput input = request.getInput();
UpdateXOutput output = new UpdateXOutput();
response.setOutput(output);
try {
firstMethodCall(...);
} catch (Exception t) {
throwCorrectException(t, logger);
}
return response;
}
private void firstMethodCall(...) throws Exception {
TypeF typeF = callInterfaceMethod(...);
...
}
/**
* Orchestrates Interface service
*/
protected TypeF callInterfaceMethod(...) {
...
request.setInput(input);
request.setHeader(header);
InterfaceResponse response = interface.process(request); // LINE ERROR - In this step interface is NULL when the test get this
return response;
}
}
And finally my class test:
#RunWith(PowerMockRunner.class)
#PrepareForTest(value = {ClassA.class,Interface.class} )
public class WithPowerMockUnitTest{
#InjectMocks
private ClassA classA;
private Interface interface;
#Before
public void setUp() throws Exception {
InterfaceRequest InterfaceRequest = createInterfaceRequest();
InterfaceResponse serviceUnavailableResponse = createInterfaceResponse();
Interface = Mockito.mock(Interface.class);
when(Interface.process(Mockito.any(InterfaceRequest.class))).thenReturn(serviceUnavailableResponse);
}
#Test
public void testh() throws SOAException {
InterfaceResponse res = interface.process(Mockito.any(InterfaceRequest.class)); // There all run ok. The interface is not null and return what i expected.
System.out.println("RES "+res);
}
#Test
public void test() {
assertNotNull(classA); // not null
assertNotNull(interface); // not null
}
#Test
public void newTest() throws Exception {
InterfaceRequest InterfaceRequest = createInterfaceRequest();
InterfaceResponse serviceUnavailableResponse = createInterfaceResponse();
UpdateXResponse response = ClassA.process(updateXRequest()); // PROBLEM!! When that get the LINE ERROR the interface is null! WHY?
}
}
I put some comments in the lines where the problem exists for me.
public interface A{
Response process(Request r) throws Exception;
}
public class B{
private Class_That_Override_Interface_method ctoim;
public Response function(){
X res = method_B();
}
protected X method_B(){
response res = ctoim.process(request); // That ctoim is always NULL when the test get that line/call
}
}
Thanks
You're missing the #Mock annotation on your Interface variable.
Therefore the mock is not injected into your classA and the newTest() fails. (In this case remove Interface = Mockito.mock(Interface.class); from the setUp method).
Alternativly remove the #InjectMocks annotation and create your class under test manually passing your mock into the constructor.
For this specific case (assuming its a different case from the last question)
there doesn't seem to be a need to involve PowerMockito. So unless you left out some relevant parts you might as well just use the MockitoJUnitRunner.
Ps.:
Also remeber what I said last time about compilable examples?
interface is a keyword and can't be used for variables.
You should also aim to write variables identical all the times (not Interface and interface / classA and ClassA)
And in case you haven't read it yet check out the help section about minmal reproducible examples.
Edit:
I fogot to mention that the line interface.process(Mockito.any(InterfaceRequest.class)); in testh() is actually invalid syntax. You should use ArgumentMatchers only for parameters of mocked methods.
Also consider adding the MockitoAnnotations.initMocks(this); to your setUp method, when using the PowerMockRunner.
I have an existing app that I'm adding a "Suggested Products" feature to and I'm having trouble with my JSONP response not being properly transformed to the typed JsArray. I'm hoping someone can give me an idea of what I'm doing wrong?
I have defined my type that will be returned from the server in its own class:
import com.google.gwt.core.client.JavaScriptObject;
public class SuggestedProduct extends JavaScriptObject {
protected SuggestedProduct() {}
public final native String getFormName();
public final native String getImageURL();
}
I have a method that uses the JsonpRequestBuilder to fire off a request to get my JSON.
private void loadSuggestedProducts() {
JsonpRequestBuilder builder = new JsonpRequestBuilder();
builder.requestObject(buildSuggestedProductURL(), new AsyncCallback<JsArray<SuggestedProduct>>() {
public void onFailure(Throwable caught) {
//Handle errors
}
public void onSuccess(JsArray<SuggestedProduct> data) {
if ( data == null) {
//Handle empty data
return;
}
SafeHtmlBuilder sb = new SafeHtmlBuilder();
sb.appendHtmlConstant("<h4>Suggested Products:</h4>");
for (int i=0; i < data.length(); i++) {
SuggestedProduct product = data.get(i); //<- This line throws the exception
sb.appendHtmlConstant("<div class=\"card\">");
sb.appendHtmlConstant("<img class=\"card-img-top\" src=\"" + product.getImageURL() + "\" alt=\"" + product.getFormName() + "\">");
sb.appendHtmlConstant("<div class=\"card-body\">");
sb.appendHtmlConstant("<h5 class=\"card-title\">" + product.getFormName() + "</h5>");
sb.appendHtmlConstant("<a onclick=\"javascript:addItems();\" class=\"cmd-add\">Add <i aria-hidden=\"true\" class=\"fa fa-plus-circle\"></i></a>");
sb.appendHtmlConstant("</div></div>");
}
view.getSuggestedProducts().setInnerSafeHtml(sb.toSafeHtml());
}
});
}
When I try to use a SuggestedProduct from the response, I get an error:
java.lang.IncompatibleClassChangeError: Found interface
com.google.gwt.cor.client.JsArray, but class was expected
I've been following the guide in the GWT documentation. I don't see any difference between what I'm trying and what they say will work. When I debug, it looks as though the returned data is an array of SuggestedProducts, so I'm stumped as to how to proceed. Any help would be appreciated.
After closer inspection I realized my overlay type was missing method bodies for what fields to return from the JSON object they represented. The fix was to include the proper JSNI method definitions.
import com.google.gwt.core.client.JavaScriptObject;
public class SuggestedProduct extends JavaScriptObject {
protected SuggestedProduct() {}
public final native String getFormName() /*-{ return this.formname; }-*/;
public final native String getImageURL() /*-{ return this.imageurl; }-*/;
}
I use the GWT RequestBuilder, and for testing purposes, I'd like to load a json file in the server.
It works perfectly with the DevMode, but throw a 404 error with GWTTestCase.
With RPC, there is a fix adding <servlet path=".." class="..."/>, but what can I do with static content ?
I could easily use #TextResource, but it's not the goal of my UnitTest (which is in fact a functionnal test)
Static resources can be bundled with a module by putting them in the module's public path.
I used (once again) Thomas's answer to resolve the problem. My module is io.robusta.fora.comments.Comment.gwt.xml and I've put my user.json file in the io.robsuta.fora.comments.resources package.
I had so to add in Comment.gwt.xml file : <public path="resources"/>
Then the GWTTestCase is straightforward :
public class GwtRestClientTest extends GWTTestCase{
#Override
public String getModuleName() {
return "io.robusta.fora.comments.Comments";
}
public void testGET(){
String base = GWT.getModuleBaseURL();
System.out.println(base); //-> http://192.168.0.10:53551/io.robusta.fora.comments.Comments.JUnit/
GwtRestClient client = new GwtRestClient(base); //base url
AsyncCallback<String> cb = new AsyncCallback<String>() {
#Override
public void onSuccess(String result) {
System.out.println(result);//->{id:1,email:"jo#robusta.io"}
finishTest();
}
#Override
public void onFailure(Throwable caught) {
caught.printStackTrace();
}
};
client.GET("user.json", null, cb);//fetch my json file with no params
delayTestFinish(3000);
}
}
what do i have to do when I have this error:
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException
I added the path of the bin in JDK in the properties of "MY computer": this one "C:\Program Files\Java\jdk1.6.0_19\bin"
and I entered to run-cmd-
cd C:\Users\user\Documents\NetBeansProjects\CountRMI\src\countrmi
start rmiregistry
and i run the server, so this error appear
java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is:
java.lang.ClassNotFoundException
Thank u
Consider looking at the Cajo project. It wraps RMI so you don't have to worry about starting rmi registries and the such.
See the example below from one of the Cajo wiki pages
Duck.java
public interface Duck {
boolean looks();
boolean walks();
boolean talks();
}
DuckServer.java
import gnu.cajo.invoke.Remote;
import gnu.cajo.utils.ItemServer;
public class DuckServer implements Duck {
public boolean looks() {
System.out.println("hi there!");
return true;
}
public boolean walks() {
System.out.println("waddle waddle");
return true;
}
public boolean talks() {
System.out.println("quack quack!");
return true;
}
public static void main(String args[]) throws Exception { // simple unit test
Remote.config(null, 1198, null, 0); // use cajo port 1198
ItemServer.bind(new DuckServer(), "Donald");
System.out.println("duck server running");
}
}
DuckClient.java
import gnu.cajo.utils.extra.TransparentItemProxy;
public class DuckClient { // try out DuckServer
public static void main(String args[]) throws Exception {
Duck duck = (Duck)TransparentItemProxy.getItem(
"//serverHost:1198/Donald",
new Class[] { Duck.class }
);
System.out.println("looks like = " + duck.looks());
System.out.println("walks like = " + duck.walks());
System.out.println("talks like = " + duck.talks());
}
}
The time has passed, but maybe this helps someone. When you put
cd C:\Users\user\Documents\NetBeansProjects\CountRMI\src\countrmi
you are setting de path to sources files, but yo have to set this to the classes files, in this way
cd C:\Users\user\Documents\NetBeansProjects\CountRMI\build\classes
and start rmiregistry, of course
at least, it worked fine for me.
I am looking to read xls file using the gwt RPC and when I am using the code which excecuted fine in normal file it is unable to load the file and giving me null pointer exception.
Following is the code
{
{
import com.arosys.readExcel.ReadXLSX;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;
import org.Preview.client.GWTReadXL;
import java.io.InputStream;
import com.arosys.customexception.FileNotFoundException;
import com.arosys.logger.LoggerFactory;
import java.util.Iterator;
import org.apache.log4j.Logger;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
/**
*
* #author Amandeep
*/
public class GWTReadXLImpl extends RemoteServiceServlet implements GWTReadXL
{
private String fileName;
private String[] Header=null;
private String[] RowData=null;
private int sheetindex;
private String sheetname;
private XSSFWorkbook workbook;
private XSSFSheet sheet;
private static Logger logger=null;
public void loadXlsxFile() throws Exception
{
logger.info("inside loadxlsxfile:::"+fileName);
InputStream resourceAsStream =ClassLoader.getSystemClassLoader().getSystemResourceAsStream("c:\\test2.xlsx");
logger.info("resourceAsStream-"+resourceAsStream);
if(resourceAsStream==null)
throw new FileNotFoundException("unable to locate give file");
else
{
try
{
workbook = new XSSFWorkbook(resourceAsStream);
sheet = workbook.getSheetAt(sheetindex);
}
catch (Exception ex)
{
logger.error(ex.getMessage());
}
}
}// end loadxlsxFile
public String getNumberOfColumns() throws Exception
{
int NO_OF_Column=0; XSSFCell cell = null;
loadXlsxFile();
Iterator rowIter = sheet.rowIterator();
XSSFRow firstRow = (XSSFRow) rowIter.next();
Iterator cellIter = firstRow.cellIterator();
while(cellIter.hasNext())
{
cell = (XSSFCell) cellIter.next();
NO_OF_Column++;
}
return NO_OF_Column+"";
}
}
}
I am calling it in client program by this code:
final AsyncCallback<String> callback1 = new AsyncCallback<String>() {
public void onSuccess(String result) {
RootPanel.get().add(new Label("In success"));
if(result==null)
{
RootPanel.get().add(new Label("result is null"));
}
RootPanel.get().add(new Label("result is"+result));
}
public void onFailure(Throwable caught) {
RootPanel.get().add(new Label("In Failure"+caught));
}
};
try{
getService().getNumberOfColumns(callback1);
}catch(Exception e){}
}
Pls tell me how can I resolve this issue as the code runs fine when run through the normal java file.
Why are using using the system classloader, rather than the normal one?
But, If you still want to use then look at this..
As you are using like a web application. In that case, you need to use the ClassLoader which is obtained as follows:
ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
This one has access to the all classpath paths tied to the webapplication in question and you're not anymore dependent on which parent classloader (a webapp has more than one!) has loaded your class.
Then, on this classloader, you need to just call getResourceAsStream() to get a classpath resource as stream, not the getSystemResourceAsStream() which is dependent on how the webapplication is started. You don't want to be dependent on that as well since you have no control over it at external hosting:
InputStream input = classLoader.getResourceAsStream("filename.extension");
The location of file should in your CLASSPATH.