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How to serialize Java primitives using Jersey REST


How to serialize Java primitives using Jersey REST

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How to serialize Java primitives using Jersey REST
Tag : java , By : Manik
Date : January 10 2021, 01:49 PM


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Serialize Java 8 Stream with Jersey


Tag : java , By : user183289
Date : March 29 2020, 07:55 AM
should help you out
but I need to know how to compose (decorate) existing MessageBodyWriters with a new MessageBodyWriter for my Stream
@Provider
public class StreamBodyWriter implements MessageBodyWriter<Stream> {

    @Context
    private Providers providers;

    @Override
    public boolean isWriteable(Class<?> type, Type genericType, 
            Annotation[] annotations, MediaType mediaType) {
        return Stream.class.isAssignableFrom(type);
    }

    @Override
    public long getSize(Stream stream, Class<?> type, Type genericType, 
            Annotation[] annotations, MediaType mediaType) { return -1; }

    @Override
    public void writeTo(Stream stream, Class<?> type, Type genericType, 
            Annotation[] annotations, MediaType mediaType, 
            MultivaluedMap<String, Object> httpHeaders, OutputStream entityStream) 
            throws IOException, WebApplicationException {

        Object obj = stream.collect(Collectors.toList());
        Class<?> objType = obj.getClass();

        MessageBodyWriter writer = providers.getMessageBodyWriter(objType, 
                null, annotations, mediaType);

        writer.writeTo(obj, objType, null, annotations, 
                mediaType, httpHeaders, entityStream);

    }
}
@Path("stream")
public class StreamResource {

    @GET
    @Produces(MediaType.APPLICATION_JSON)
    public Response getStream() {
        List<Person> myList = Arrays.asList(
                              new Person("Stack"), 
                              new Person("Overflow"),
                              new Person("Sam"));
        Stream<Person> stream = myList.stream()
                                      .filter(p -> p.name.startsWith("S"));
        return Response.ok(stream).build();
    }

    public static class Person {
        public String name;
        public Person(String name) { this.name = name; }
        public Person() {}
    }
}

How to pass java.util.date in REST urls using Jersey REST cleint


Tag : java , By : DaveF
Date : March 29 2020, 07:55 AM
I hope this helps you . You can pass it as a String and convert to the required format.Below code takes the String and returns the java.util.Date in the same format as the passed String. Check the below:
//your date as String
String date="Thu Apr 14 00:00:00 IST 2016";
            SimpleDateFormat dateformat = new SimpleDateFormat("EEE MMM dd HH:mm:ss Z yyyy");
            Date returnDate=dateformat.parse(date);//returnDate will have the Date object in same format.
            System.out.println(returnDate);
SimpleDateFormat dateformat = new SimpleDateFormat("EEE MMM dd HH:mm:ss Z yyyy");
                Date newReturnDate=dateformat.parse(returnDate);//newReturnDate will have the Date object in same format.
Calendar cal = Calendar.getInstance();
            cal.setTime(newReturnDate);

            cal.set(Calendar.HOUR,11 );
            cal.set(Calendar.MINUTE,39 );   
            newReturnDate=cal.getTime();
            System.out.println(newReturnDate);

Java spring-rest/ Jersey how secure rest route with filter


Tag : java , By : Bado
Date : March 29 2020, 07:55 AM
To fix this issue There are some confusing points in your questions, but I'll try to cover whatever I can.
ONE. filter settings - As per your question you made filter settings in pom.xml. But actually filter settings are always made in web.xml file. If you have mistakenly named pom.xml then ignore but if not then move the filter settings to web.xml.
@EnableWebSecurity
public class WebSecurityConfig extends
        WebSecurityConfigurerAdapter {

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        http
            .csrf()
                .csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse());
    }
}
<filter>
    <filter-name>CsrfFilter</filter-name>
    <filter-class>org.apache.catalina.filters.RestCsrfPreventionFilter</filter-class>
</filter>
<filter-mapping>
    <filter-name>CsrfFilter</filter-name>
    <url-pattern>/run</url-pattern>
    <url-pattern>/path1</url-pattern>
    <url-pattern>/path2</url-pattern>
</filter-mapping>

Jersey vs Jersey (Stand alone) vs Jersey with Grizzly vs Jersey with Tomcat - for REST services?


Tag : rest , By : MJRider
Date : March 29 2020, 07:55 AM

Jersey REST API: java.lang.NoSuchMethodError: org.glassfish.jersey.message.filtering.EntityFilteringFeature.enabled


Tag : eclipse , By : lhoBas
Date : March 29 2020, 07:55 AM
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