Package org.apache.olingo.odata2.core.ep.util

Examples of org.apache.olingo.odata2.core.ep.util.CircleStreamBuffer

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    schema.setNamespace("http://namespace.com");
    schemas.add(schema);

    DataServices data = new DataServices().setSchemas(schemas).setDataServiceVersion(ODataServiceVersion.V20);
    OutputStreamWriter writer = null;
    CircleStreamBuffer csb = new CircleStreamBuffer();
    writer = new OutputStreamWriter(csb.getOutputStream(), "UTF-8");
    XMLStreamWriter xmlStreamWriter = xmlStreamWriterFactory.createXMLStreamWriter(writer);
    XmlMetadataProducer.writeMetadata(data, xmlStreamWriter, null);
  }
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    // Execute
    Map<String, String> predefinedNamespaces = new HashMap<String, String>();
    predefinedNamespaces.put("foo", "http://www.foo.bar/Protocols/Data");
    DataServices data = new DataServices().setSchemas(schemas).setDataServiceVersion(ODataServiceVersion.V20);
    OutputStreamWriter writer = null;
    CircleStreamBuffer csb = new CircleStreamBuffer();
    writer = new OutputStreamWriter(csb.getOutputStream(), "UTF-8");
    XMLStreamWriter xmlStreamWriter = xmlStreamWriterFactory.createXMLStreamWriter(writer);
    XmlMetadataProducer.writeMetadata(data, xmlStreamWriter, predefinedNamespaces);
    String metadata = StringHelper.inputStreamToString(csb.getInputStream());

    // Verify
    Map<String, String> prefixMap = new HashMap<String, String>();
    prefixMap.put("edmx", "http://schemas.microsoft.com/ado/2007/06/edmx");
    prefixMap.put("a", "http://schemas.microsoft.com/ado/2008/09/edm");
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    if (schemas != null) {
      dataServiceVersion = calculateDataServiceVersion(schemas);
    }
    DataServices metadata = new DataServices().setSchemas(schemas).setDataServiceVersion(dataServiceVersion);
    OutputStreamWriter writer = null;
    CircleStreamBuffer csb = new CircleStreamBuffer();
    try {
      writer = new OutputStreamWriter(csb.getOutputStream(), DEFAULT_CHARSET);
      XMLStreamWriter xmlStreamWriter = XMLOutputFactory.newInstance().createXMLStreamWriter(writer);
      XmlMetadataProducer.writeMetadata(metadata, xmlStreamWriter, predefinedNamespaces);
    } catch (UnsupportedEncodingException e) {
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    } catch (XMLStreamException e) {
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    } catch (FactoryConfigurationError e) {
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    }
    builder.entity(csb.getInputStream());
    builder.header(ODataHttpHeaders.DATASERVICEVERSION, dataServiceVersion);
    return builder.build();
  }
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    @Override
    public ODataResponse readEntitySimpleProperty(final GetSimplePropertyUriInfo uriInfo, final String contentType)
        throws ODataException {
      assertTrue(getContext().isInBatchMode());

      CircleStreamBuffer buffer = new CircleStreamBuffer();
      BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(buffer.getOutputStream()));
      JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);
      try {
        jsonStreamWriter.beginObject()
            .name(FormatJson.D)
            .beginObject()
            .namedStringValue("EmployeeName", "Walter Winter")
            .endObject()
            .endObject();
        writer.flush();
        buffer.closeWrite();
      } catch (IOException e) {
        buffer.close();
        throw new RuntimeException(e);
      }

      ODataResponse oDataResponse =
          ODataResponse.entity(buffer.getInputStream()).status(HttpStatusCodes.OK).contentHeader("application/json")
              .build();
      return oDataResponse;
    }
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    super(type);
  }

  @Before
  public void initialize() throws Exception {
    csb = new CircleStreamBuffer();
    OutputStream outStream = csb.getOutputStream();
    writer = XMLOutputFactory.newInstance().createXMLStreamWriter(outStream, DEFAULT_CHARSET);
    defaultProperties = EntityProviderWriteProperties.serviceRoot(BASE_URI).build();
    defaultEia =
        EntityInfoAggregator.create(MockFacade.getMockEdm().getDefaultEntityContainer().getEntitySet("Rooms"),
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   * @return an {@link ODataResponse} containing the serialized error message
   */
  @Override
  public ODataResponse writeErrorDocument(final HttpStatusCodes status, final String errorCode, final String message,
      final Locale locale, final String innerError) {
    CircleStreamBuffer csb = new CircleStreamBuffer();

    try {
      OutputStream outStream = csb.getOutputStream();
      XMLStreamWriter writer = XMLOutputFactory.newInstance().createXMLStreamWriter(outStream, DEFAULT_CHARSET);

      XmlErrorDocumentProducer producer = new XmlErrorDocumentProducer();
      producer.writeErrorDocument(writer, errorCode, message, locale, innerError);

      writer.flush();
      csb.closeWrite();

      ODataResponseBuilder response = ODataResponse.entity(csb.getInputStream())
          .header(ODataHttpHeaders.DATASERVICEVERSION, ODataServiceVersion.V10)
          .status(status);
      return response.build();
    } catch (Exception e) {
      csb.close();
      throw new ODataRuntimeException(e);
    }
  }
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   * @return resulting {@link ODataResponse} with written service document
   * @throws EntityProviderException
   */
  @Override
  public ODataResponse writeServiceDocument(final Edm edm, final String serviceRoot) throws EntityProviderException {
    CircleStreamBuffer csb = new CircleStreamBuffer();

    try {
      OutputStreamWriter writer = new OutputStreamWriter(csb.getOutputStream(), DEFAULT_CHARSET);
      AtomServiceDocumentProducer as = new AtomServiceDocumentProducer(edm, serviceRoot);
      as.writeServiceDocument(writer);
      csb.closeWrite();

      return ODataResponse.entity(csb.getInputStream()).build();
    } catch (EntityProviderException e) {
      csb.close();
      throw e;
    } catch (Exception e) {
      csb.close();
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    }
  }
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  }

  @Override
  public ODataResponse writeEntry(final EdmEntitySet entitySet, final Map<String, Object> data,
      final EntityProviderWriteProperties properties) throws EntityProviderException {
    CircleStreamBuffer csb = new CircleStreamBuffer();

    try {
      OutputStream outStream = csb.getOutputStream();
      XMLStreamWriter writer = XMLOutputFactory.newInstance().createXMLStreamWriter(outStream, DEFAULT_CHARSET);
      writer.writeStartDocument(DEFAULT_CHARSET, XML_VERSION);

      AtomEntryEntityProducer as = new AtomEntryEntityProducer(properties);
      EntityInfoAggregator eia = EntityInfoAggregator.create(entitySet, properties.getExpandSelectTree());
      as.append(writer, eia, data, true, false);

      writer.flush();
      csb.closeWrite();

      ODataResponseBuilder response = ODataResponse.entity(csb.getInputStream())
          .eTag(as.getETag())
          .idLiteral(as.getLocation());
      return response.build();
    } catch (EntityProviderException e) {
      csb.close();
      throw e;
    } catch (Exception e) {
      csb.close();
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    }
  }
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    return writeSingleTypedElement(propertyInfo, value);
  }

  private ODataResponse writeSingleTypedElement(final EntityPropertyInfo propertyInfo, final Object value)
      throws EntityProviderException {
    CircleStreamBuffer csb = new CircleStreamBuffer();

    try {
      OutputStream outStream = csb.getOutputStream();
      XMLStreamWriter writer = XMLOutputFactory.newInstance().createXMLStreamWriter(outStream, DEFAULT_CHARSET);
      writer.writeStartDocument(DEFAULT_CHARSET, XML_VERSION);

      XmlPropertyEntityProducer ps = new XmlPropertyEntityProducer(false);
      ps.append(writer, propertyInfo, value);

      writer.flush();
      csb.closeWrite();

      return ODataResponse.entity(csb.getInputStream()).build();
    } catch (EntityProviderException e) {
      csb.close();
      throw e;
    } catch (Exception e) {
      csb.close();
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    }
  }
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  }

  @Override
  public ODataResponse writeFeed(final EdmEntitySet entitySet, final List<Map<String, Object>> data,
      final EntityProviderWriteProperties properties) throws EntityProviderException {
    CircleStreamBuffer csb = new CircleStreamBuffer();

    try {
      OutputStream outStream = csb.getOutputStream();
      XMLStreamWriter writer = XMLOutputFactory.newInstance().createXMLStreamWriter(outStream, DEFAULT_CHARSET);
      writer.writeStartDocument(DEFAULT_CHARSET, XML_VERSION);

      AtomFeedProducer atomFeedProvider = new AtomFeedProducer(properties);
      EntityInfoAggregator eia = EntityInfoAggregator.create(entitySet, properties.getExpandSelectTree());
      atomFeedProvider.append(writer, eia, data, false);

      writer.flush();
      csb.closeWrite();

      ODataResponse response = ODataResponse.entity(csb.getInputStream()).build();
      return response;
    } catch (EntityProviderException e) {
      csb.close();
      throw e;
    } catch (XMLStreamException e) {
      csb.close();
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    }
  }
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