Examples of javax.ws.rs.core.Response.readEntity()

javax.ws.rs.core.Response.readEntity()
Read the message entity input stream as an instance of specified Java type using a {@link javax.ws.rs.ext.MessageBodyReader} that supports mapping themessage entity stream onto the requested type.
Method throws an {@link MessageProcessingException} if the content of themessage cannot be mapped to an entity of the requested type and {@link IllegalStateException} in case the entity is not backed by an inputstream or if the original entity input stream has already been consumed without {@link #bufferEntity() buffering} the entity data prior consuming.

If the message does not contain an entity body {@code null} is returned.A non-null message instance returned from this method will be cached for subsequent retrievals via {@link #getEntity()}. Unless the supplied entity type is an {@link java.io.InputStream input stream}, this method automatically {@link #close() closes} the an unconsumed original response entity data streamif open. In case the entity data has been buffered, the buffer will be reset prior consuming the buffered data to enable subsequent invocations of {@code readEntity(...)} methods on this response.
@param < T> entity instance Java type. @param entityType the type of entity. @return the message entity; for a zero-length response entities returns {@code null}or a corresponding Java object that represents zero-length data. @throws MessageProcessingException if the content of the message cannot bemapped to an entity of the requested type. @throws IllegalStateException if the entity is not backed by an input stream,the response has been {@link #close() closed} already,or if the entity input stream has been fully consumed already and has not been buffered prior consuming. @see javax.ws.rs.ext.MessageBodyReader @since 2.0

    public void testPreMatchContainerFilterThrowsException() {
        String address = "http://localhost:" + PORT + "/throwException";
        WebClient wc = WebClient.create(address);
        Response response = wc.get();
        assertEquals(500, response.getStatus());
        assertEquals("Prematch filter error", response.readEntity(String.class));
        assertEquals("prematch", response.getHeaderString("FilterException"));
        assertEquals("OK", response.getHeaderString("Response"));
        assertEquals("OK2", response.getHeaderString("Response2"));
        assertNull(response.getHeaderString("DynamicResponse"));
        assertNull(response.getHeaderString("Custom"));

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    public void testPostMatchContainerFilterThrowsException() {
        String address = "http://localhost:" + PORT + "/bookstore/bookheaders/simple?throwException";
        WebClient wc = WebClient.create(address);
        Response response = wc.get();
        assertEquals(500, response.getStatus());
        assertEquals("Postmatch filter error", response.readEntity(String.class));
        assertEquals("postmatch", response.getHeaderString("FilterException"));
        assertEquals("OK", response.getHeaderString("Response"));
        assertEquals("OK2", response.getHeaderString("Response2"));
        assertEquals("Dynamic", response.getHeaderString("DynamicResponse"));
        assertEquals("custom", response.getHeaderString("Custom"));

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        WebClient wc = WebClient.create(address, providers);
        Book theBook = new Book("Echo", 123L);
        Response r = wc.post(theBook);
        assertEquals(201, r.getStatus());
        assertEquals("http://localhost/redirect", r.getHeaderString(HttpHeaders.LOCATION));
        Book responseBook = r.readEntity(Book.class);
        assertSame(theBook, responseBook);
    }
    
    @Test
    public void testPostBook() {

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    }


    @Override
    public DataPoint<ConnectionPool> collect() throws Exception {
        Response clientResponse = getResponse(constructResourceString());
        JsonObject response = clientResponse.readEntity(JsonObject.class);
        JsonObject entity = response.getJsonObject("extraProperties").
                getJsonObject("entity");


        int numconnfree = getIntVal(entity, "numconnfree", "current");
        int numconnused = getIntVal(entity, "numconnused", "current");

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    @Override
    public DataPoint<String> collect() throws Exception {
        authenticator.get().addAuthenticator(client, username.get(), password.get());
        Response response = getResponse("sessions");
        JsonObject result = response.readEntity(JsonObject.class);
        JsonObject extraProps = result.getJsonObject("extrapProperties");
        String token = extraProps.getString("token");
        return new DataPoint<>("token", token);
    }
}

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        final int INTERVAL_VALUE = 5;
        //activation
        JsonObject interval = Json.createObjectBuilder().add("interval", INTERVAL_VALUE).build();
        Response response = super.mainTarget.request().post(Entity.json(interval));
        Assert.assertThat(response.getStatus(), is(200));
        JsonObject jsonObject = response.readEntity(JsonObject.class);
        String nextTimeout = jsonObject.getString("nextTimeout");
        Assert.assertNotNull(nextTimeout);
        //status
        response = super.mainTarget.request().get();
        Assert.assertThat(response.getStatus(), is(200));

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        String nextTimeout = jsonObject.getString("nextTimeout");
        Assert.assertNotNull(nextTimeout);
        //status
        response = super.mainTarget.request().get();
        Assert.assertThat(response.getStatus(), is(200));
        JsonObject status = response.readEntity(JsonObject.class);
        nextTimeout = status.getString("nextTimeout");
        assertNotNull(nextTimeout);
        String currentInterval = status.getString("interval");
        assertNotNull(currentInterval, is(Integer.parseInt(currentInterval)));
        //stop

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    public String changeInterval(String location,int newValue){
        JsonObject interval = Json.createObjectBuilder().add("interval", newValue).add("location",location).build();
        WebTarget administrationTarget = getAdministrationTarget();
        final Response response = administrationTarget.request().post(Entity.json(interval));
        return response.readEntity(JsonObject.class).getString("nextTimeout");


    }


    private WebTarget getAdministrationTarget() {
        return this.client.target(getUri());

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        return this.client.target(getUri());
    }


    public Pair<String,String> status(){
        Response response = getAdministrationTarget().request().get();
        JsonObject status = response.readEntity(JsonObject.class);
        String nextTimeout = status.getString("nextTimeout");
        String currentInterval = status.getString("interval");
        return new Pair<String, String>(currentInterval,nextTimeout);

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                request(MediaType.APPLICATION_JSON).get(Response.class);


        if (response.getStatus() == 404) {
            return null;
        }
        return new PoolStatistics(response.readEntity(JsonObject.class));
    }


    public String getUri() {
        return model.serverUriProperty().get() + "/resources/applications/{application}/ejbs/{ejb}/pool";
    }

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