Package org.apache.olingo.odata2.core

Source Code of org.apache.olingo.odata2.core.ODataExceptionWrapperTest$MapperServiceFactory

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package org.apache.olingo.odata2.core;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.mockito.Mockito.when;

import java.net.URI;
import java.net.URISyntaxException;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;

import javax.ws.rs.core.MultivaluedHashMap;

import org.apache.olingo.odata2.api.ODataCallback;
import org.apache.olingo.odata2.api.ODataService;
import org.apache.olingo.odata2.api.ODataServiceFactory;
import org.apache.olingo.odata2.api.commons.HttpStatusCodes;
import org.apache.olingo.odata2.api.exception.ODataApplicationException;
import org.apache.olingo.odata2.api.exception.ODataException;
import org.apache.olingo.odata2.api.processor.ODataContext;
import org.apache.olingo.odata2.api.processor.ODataErrorCallback;
import org.apache.olingo.odata2.api.processor.ODataErrorContext;
import org.apache.olingo.odata2.api.processor.ODataResponse;
import org.apache.olingo.odata2.api.uri.PathInfo;
import org.apache.olingo.odata2.core.rest.ODataErrorHandlerCallbackImpl;
import org.apache.olingo.odata2.testutil.fit.BaseTest;
import org.junit.Test;
import org.mockito.Mockito;

/**
*/
public class ODataExceptionWrapperTest extends BaseTest {

  /**
   * Wrap an exception and verify that {@link PathInfo} is available and filled with correct values.
   *
   */
  @Test
  public void testCallbackPathInfoAvailable() throws Exception {
    ODataContextImpl context = getMockedContext("http://localhost:80/test", "ODataServiceRoot");
    ODataErrorCallback errorCallback = new ODataErrorCallback() {
      @Override
      public ODataResponse handleError(final ODataErrorContext context) throws ODataApplicationException {
        PathInfo pathInfo = context.getPathInfo();
        assertEquals("ODataServiceRoot", pathInfo.getServiceRoot().toString());
        assertEquals("http://localhost:80/test", pathInfo.getRequestUri().toString());
        return ODataResponse.entity("bla").status(HttpStatusCodes.BAD_REQUEST).contentHeader("text/html").build();
      }
    };
    when(context.getServiceFactory()).thenReturn(new MapperServiceFactory(errorCallback));

    //
    Map<String, String> queryParameters = Collections.emptyMap();
    List<String> acceptContentTypes = Arrays.asList("text/html");
    ODataExceptionWrapper exceptionWrapper = createWrapper(context, queryParameters, acceptContentTypes);
    ODataResponse response = exceptionWrapper.wrapInExceptionResponse(new Exception());

    // verify
    assertNotNull(response);
    assertEquals(HttpStatusCodes.BAD_REQUEST.getStatusCode(), response.getStatus().getStatusCode());
    String errorMessage = (String) response.getEntity();
    assertEquals("bla", errorMessage);
    String contentTypeHeader = response.getContentHeader();
    assertEquals("text/html", contentTypeHeader);
  }

  private ODataExceptionWrapper createWrapper(final ODataContextImpl context,
      final Map<String, String> queryParameters, final List<String> acceptContentTypes) throws URISyntaxException {
    ODataExceptionWrapper exceptionWrapper = new ODataExceptionWrapper(context, queryParameters, acceptContentTypes);

    return exceptionWrapper;
  }

  private ODataContextImpl getMockedContext(final String requestUri, final String serviceRoot) throws ODataException,
      URISyntaxException {
    ODataContextImpl context = Mockito.mock(ODataContextImpl.class);
    PathInfoImpl pathInfo = new PathInfoImpl();
    pathInfo.setRequestUri(new URI(requestUri));
    pathInfo.setServiceRoot(new URI(serviceRoot));
    when(context.getPathInfo()).thenReturn(pathInfo);
    when(context.getRequestHeaders()).thenReturn(new MultivaluedHashMap<String, String>());
    return context;
  }

  public static final class MapperServiceFactory extends ODataServiceFactory {
    private ODataErrorCallback errorCallback;

    public MapperServiceFactory(final ODataErrorCallback callback) {
      errorCallback = callback;
    }

    @Override
    public ODataService createService(final ODataContext ctx) throws ODataException {
      return null;
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T extends ODataCallback> T getCallback(final Class<? extends ODataCallback> callbackInterface) {
      if (callbackInterface == ODataErrorCallback.class) {
        if (errorCallback == null) {
          return (T) new ODataErrorHandlerCallbackImpl();
        }
        return (T) errorCallback;
      }
      // only error callbacks are handled here
      return null;
    }
  }
}
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