Java Code Examples for org.apache.olingo.odata2.api.ep.EntityProvider#readEntry()

/**
 * Reads an entry (an Entity, a property, a complexType, ...).
 * 
 * @param resource_path the resource path to the parent of the requested
 *    EntitySet, as defined in {@link #getResourcePath(URI)}.
 * @param query_parameters Query parameters, as defined in {@link URI}.
 * 
 * @return an ODataEntry for the given {@code resource_path}.
 * 
 * @throws HttpException if the server emits an HTTP error code.
 * @throws IOException if the connection with the remote service fails.
 * @throws EdmException if the EDM does not contain the given entitySetName.
 * @throws EntityProviderException if reading of data (de-serialization)
 *    fails.
 * @throws UriSyntaxException violation of the OData URI construction rules.
 * @throws UriNotMatchingException URI parsing exception.
 * @throws ODataException encapsulate the OData exceptions described above.
 * @throws InterruptedException if running thread has been interrupted.
 */
public ODataEntry readEntry(String resource_path,
   Map<String, String> query_parameters) throws IOException, ODataException, InterruptedException
{
   if (resource_path == null || resource_path.isEmpty ())
      throw new IllegalArgumentException (
         "resource_path must not be null or empty.");
   
   ContentType contentType = ContentType.APPLICATION_ATOM_XML;
   
   String absolutUri = serviceRoot.toString () + '/' + resource_path;
   
   // Builds the query parameters string part of the URL.
   absolutUri = appendQueryParam (absolutUri, query_parameters);
   
   InputStream content = execute (absolutUri, contentType, "GET");
   
   return EntityProvider.readEntry(contentType.type (),
      getEntitySet (resource_path), content,
      EntityProviderReadProperties.init ().build ());
}
 

public ODataEntry readEntry(String serviceUri, String contentType,
		String entitySetName, String keyValue, SystemQueryOptions options)
		throws IllegalStateException, IOException, EdmException,
		EntityProviderException {
	EdmEntityContainer entityContainer = readEdm()
			.getDefaultEntityContainer();
	logger.info("Entity container is => " + entityContainer.getName());
	String absolutUri = createUri(serviceUri, entitySetName, keyValue,
			options);

	InputStream content = executeGet(absolutUri, contentType);

	return EntityProvider.readEntry(contentType,
			entityContainer.getEntitySet(entitySetName), content,
			EntityProviderReadProperties.init().build());
}
 

private ODataEntry parseEntry(final EdmEntitySet entitySet, final InputStream content,
    final String requestContentType, final EntityProviderReadProperties properties) throws ODataBadRequestException {
  ODataContext context = getContext();
  final int timingHandle = context.startRuntimeMeasurement("EntityConsumer", "readEntry");

  ODataEntry entryValues;
  try {
    entryValues = EntityProvider.readEntry(requestContentType, entitySet, content, properties);
  } catch (final EntityProviderException e) {
    throw new ODataBadRequestException(ODataBadRequestException.BODY, e);
  }

  context.stopRuntimeMeasurement(timingHandle);

  return entryValues;
}
 

private ODataEntry parseEntry(final EdmEntitySet entitySet, final InputStream content,
    final String requestContentType, final EntityProviderReadProperties properties) throws ODataBadRequestException {
  ODataContext context = getContext();
  final int timingHandle = context.startRuntimeMeasurement("EntityConsumer", "readEntry");

  ODataEntry entryValues;
  try {
    entryValues = EntityProvider.readEntry(requestContentType, entitySet, content, properties);
  } catch (final EntityProviderException e) {
    throw new ODataBadRequestException(ODataBadRequestException.BODY, e);
  }

  context.stopRuntimeMeasurement(timingHandle);

  return entryValues;
}
 

public final ODataEntry parseEntry(final EdmEntitySet entitySet,
    final InputStream content, final String requestContentType, final boolean merge)
    throws ODataBadRequestException {
  ODataEntry entryValues;
  try {
    EntityProviderReadProperties entityProviderProperties =
        EntityProviderReadProperties.init().mergeSemantic(merge).build();
    entryValues = EntityProvider.readEntry(requestContentType, entitySet, content, entityProviderProperties);
  } catch (EntityProviderException e) {
    throw new ODataBadRequestException(ODataBadRequestException.BODY, e);
  }
  return entryValues;

}
 

private Map<String, Object> execute(final Map<String, Object> localRoomData, final EdmEntitySet roomSet,
    final String contentType)
    throws EntityProviderException {
  ODataResponse response = EntityProvider.writeEntry(contentType, roomSet, localRoomData, DEFAULT_WRITE_PROPERTIES);
  InputStream content = (InputStream) response.getEntity();

  ODataEntry entry = EntityProvider.readEntry(contentType, roomSet, content, DEFAULT_READ_PROPERTIES);
  Map<String, Object> properties = entry.getProperties();
  return properties;
}
 

@Test
public void lolApiWithProtection() throws Exception {
  try {
    InputStream content = new ByteArrayInputStream(XML_LOL.getBytes("UTF-8"));
    EdmEntitySet entitySet = MockFacade.getMockEdm().getDefaultEntityContainer().getEntitySet("Employees");
    EntityProvider.readEntry("application/xml", entitySet, content, EntityProviderReadProperties.init().build());

    fail();
  } catch (EntityProviderException e) {
    assertEquals(WstxParsingException.class, e.getCause().getClass());
  }
}
 

@Test
public void xxeApiWithProtection() throws Exception {
  try {
    InputStream content = new ByteArrayInputStream(XML_XXE.getBytes("UTF-8"));
    EdmEntitySet entitySet = MockFacade.getMockEdm().getDefaultEntityContainer().getEntitySet("Employees");

    EntityProvider.readEntry("application/xml", entitySet, content, EntityProviderReadProperties.init().build());

    fail();
  } catch (EntityProviderException e) {
    assertEquals(WstxParsingException.class, e.getCause().getClass());
  }
}
 

@Test
public void xmlDoctypeApiWithProtection() throws Exception {
  try {
    InputStream content = new ByteArrayInputStream(XML_DOCTYPE.getBytes("UTF-8"));
    EdmEntitySet entitySet = MockFacade.getMockEdm().getDefaultEntityContainer().getEntitySet("Employees");

    EntityProvider.readEntry("application/xml", entitySet, content, EntityProviderReadProperties.init().build());

    fail();
  } catch (EntityProviderException e) {
    assertEquals(WstxParsingException.class, e.getCause().getClass());
  }
}
 

@Test
@Ignore("not way to disable in parser")
public void xmlProcessingApiWithProtection() throws Exception {
  try {
    InputStream content = new ByteArrayInputStream(XML_PROCESSING.getBytes("UTF-8"));
    EdmEntitySet entitySet = MockFacade.getMockEdm().getDefaultEntityContainer().getEntitySet("Employees");

    EntityProvider.readEntry("application/xml", entitySet, content, EntityProviderReadProperties.init().build());

    fail();
  } catch (EntityProviderException e) {
    e.printStackTrace();
    assertEquals(WstxParsingException.class, e.getCause().getClass());
  }
}