package ca.uhn.fhir.rest.server;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.TimeUnit;
import org.apache.commons.io.IOUtils;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.impl.conn.PoolingHttpClientConnectionManager;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.servlet.ServletHandler;
import org.eclipse.jetty.servlet.ServletHolder;
import org.hl7.fhir.instance.model.api.IBaseResource;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import com.google.common.collect.Lists;
import ca.uhn.fhir.context.FhirContext;
import ca.uhn.fhir.model.dstu2.resource.Bundle;
import ca.uhn.fhir.model.dstu2.resource.Bundle.Link;
import ca.uhn.fhir.model.dstu2.resource.Patient;
import ca.uhn.fhir.rest.annotation.RequiredParam;
import ca.uhn.fhir.rest.annotation.Search;
import ca.uhn.fhir.rest.param.TokenAndListParam;
import ca.uhn.fhir.util.PortUtil;
import ca.uhn.fhir.util.TestUtil;
public class SearchBundleProviderWithNoSizeDstu2Test {
private static CloseableHttpClient ourClient;
private static FhirContext ourCtx = FhirContext.forDstu2();
private static TokenAndListParam ourIdentifiers;
private static IBundleProvider ourLastBundleProvider;
private static String ourLastMethod;
private static final org.slf4j.Logger ourLog = org.slf4j.LoggerFactory.getLogger(SearchBundleProviderWithNoSizeDstu2Test.class);
private static int ourPort;
private static Server ourServer;
@Before
public void before() {
ourLastMethod = null;
ourIdentifiers = null;
}
@Test
public void testBundleProviderReturnsNoSize() throws Exception {
Bundle respBundle;
ourLastBundleProvider = mock(IBundleProvider.class);
when(ourLastBundleProvider.size()).thenReturn(null);
when(ourLastBundleProvider.getResources(any(int.class), any(int.class))).then(new Answer<List<IBaseResource>>() {
@Override
public List<IBaseResource> answer(InvocationOnMock theInvocation) throws Throwable {
int from =(Integer)theInvocation.getArguments()[0];
int to =(Integer)theInvocation.getArguments()[1];
ArrayList<IBaseResource> retVal = Lists.newArrayList();
for (int i = from; i < to; i++) {
Patient p = new Patient();
p.setId(Integer.toString(i));
retVal.add(p);
}
return retVal;
}});
HttpGet httpGet;
CloseableHttpResponse status = null;
Link linkNext;
try {
httpGet = new HttpGet("http://localhost:" + ourPort + "/Patient?_format=json");
status = ourClient.execute(httpGet);
String responseContent = IOUtils.toString(status.getEntity().getContent(), StandardCharsets.UTF_8);
ourLog.info(responseContent);
assertEquals(200, status.getStatusLine().getStatusCode());
assertEquals("searchAll", ourLastMethod);
respBundle = ourCtx.newJsonParser().parseResource(Bundle.class, responseContent);
assertEquals(10, respBundle.getEntry().size());
assertEquals("Patient/0", respBundle.getEntry().get(0).getResource().getIdElement().toUnqualifiedVersionless().getValue());
linkNext = respBundle.getLink("next");
assertNotNull(linkNext);
} finally {
IOUtils.closeQuietly(status.getEntity().getContent());
}
when(ourLastBundleProvider.size()).thenReturn(25);
try {
httpGet = new HttpGet(linkNext.getUrl());
status = ourClient.execute(httpGet);
String responseContent = IOUtils.toString(status.getEntity().getContent(), StandardCharsets.UTF_8);
ourLog.info(responseContent);
assertEquals(200, status.getStatusLine().getStatusCode());
assertEquals("searchAll", ourLastMethod);
respBundle = ourCtx.newJsonParser().parseResource(Bundle.class, responseContent);
assertEquals(10, respBundle.getEntry().size());
assertEquals("Patient/10", respBundle.getEntry().get(0).getResource().getIdElement().toUnqualifiedVersionless().getValue());
linkNext = respBundle.getLink("next");
assertNotNull(linkNext);
} finally {
IOUtils.closeQuietly(status.getEntity().getContent());
}
try {
httpGet = new HttpGet(linkNext.getUrl());
status = ourClient.execute(httpGet);
String responseContent = IOUtils.toString(status.getEntity().getContent(), StandardCharsets.UTF_8);
ourLog.info(responseContent);
assertEquals(200, status.getStatusLine().getStatusCode());
assertEquals("searchAll", ourLastMethod);
respBundle = ourCtx.newJsonParser().parseResource(Bundle.class, responseContent);
assertEquals(5, respBundle.getEntry().size());
assertEquals("Patient/20", respBundle.getEntry().get(0).getResource().getIdElement().toUnqualifiedVersionless().getValue());
linkNext = respBundle.getLink("next");
assertNull(linkNext);
} finally {
IOUtils.closeQuietly(status.getEntity().getContent());
}
}
@AfterClass
public static void afterClassClearContext() throws Exception {
ourServer.stop();
TestUtil.clearAllStaticFieldsForUnitTest();
}
@BeforeClass
public static void beforeClass() throws Exception {
ourPort = PortUtil.findFreePort();
ourServer = new Server(ourPort);
DummyPatientResourceProvider patientProvider = new DummyPatientResourceProvider();
ServletHandler proxyHandler = new ServletHandler();
RestfulServer servlet = new RestfulServer(ourCtx);
servlet.setPagingProvider(new FifoMemoryPagingProvider(10));
servlet.setResourceProviders(patientProvider);
ServletHolder servletHolder = new ServletHolder(servlet);
proxyHandler.addServletWithMapping(servletHolder, "/*");
ourServer.setHandler(proxyHandler);
ourServer.start();
PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(5000, TimeUnit.MILLISECONDS);
HttpClientBuilder builder = HttpClientBuilder.create();
builder.setConnectionManager(connectionManager);
ourClient = builder.build();
}
public static class DummyPatientResourceProvider implements IResourceProvider {
@Override
public Class<? extends IBaseResource> getResourceType() {
return Patient.class;
}
@Search()
public IBundleProvider searchAll() {
ourLastMethod = "searchAll";
return ourLastBundleProvider;
}
}
}