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

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

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

org.apache.olingo.odata2.core.ep.util.CircleStreamBuffer
Circular stream buffer to write/read into/from one single buffer. With support of {@link InputStream} and {@link OutputStream} access to buffered data.


  @Override
  public ODataResponse writeFeed(final EdmEntitySet entitySet, final List<Map<String, Object>> data,
      final EntityProviderWriteProperties properties) throws EntityProviderException {
    final EntityInfoAggregator entityInfo = EntityInfoAggregator.create(entitySet, properties.getExpandSelectTree());
    CircleStreamBuffer buffer = new CircleStreamBuffer();


    try {
      BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(buffer.getOutputStream(), DEFAULT_CHARSET));
      new JsonFeedEntityProducer(properties).append(writer, entityInfo, data, true);
      writer.flush();
      buffer.closeWrite();


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

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  @Override
  public ODataResponse writeLink(final EdmEntitySet entitySet, final Map<String, Object> data,
      final EntityProviderWriteProperties properties) throws EntityProviderException {
    final EntityInfoAggregator entityInfo = EntityInfoAggregator.create(entitySet, properties.getExpandSelectTree());
    CircleStreamBuffer buffer = new CircleStreamBuffer();


    try {
      BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(buffer.getOutputStream(), DEFAULT_CHARSET));
      new JsonLinkEntityProducer(properties).append(writer, entityInfo, data);
      writer.flush();
      buffer.closeWrite();


      return ODataResponse.entity(buffer.getInputStream())
          .header(ODataHttpHeaders.DATASERVICEVERSION, ODataServiceVersion.V10)
          .build();
    } catch (EntityProviderException e) {
      buffer.close();
      throw e;
    } catch (Exception e) {
      buffer.close();
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    }
  }

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  @Override
  public ODataResponse writeLinks(final EdmEntitySet entitySet, final List<Map<String, Object>> data,
      final EntityProviderWriteProperties properties) throws EntityProviderException {
    final EntityInfoAggregator entityInfo = EntityInfoAggregator.create(entitySet, properties.getExpandSelectTree());
    CircleStreamBuffer buffer = new CircleStreamBuffer();


    try {
      BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(buffer.getOutputStream(), DEFAULT_CHARSET));
      new JsonLinksEntityProducer(properties).append(writer, entityInfo, data);
      writer.flush();
      buffer.closeWrite();


      ODataResponseBuilder response = ODataResponse.entity(buffer.getInputStream());
      if (properties.getInlineCountType() != InlineCount.ALLPAGES) {
        response = response.header(ODataHttpHeaders.DATASERVICEVERSION, ODataServiceVersion.V10);
      }
      return response.build();
    } catch (EntityProviderException e) {
      buffer.close();
      throw e;
    } catch (Exception e) {
      buffer.close();
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    }
  }

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    }
  }


  private ODataResponse writeCollection(final EntityPropertyInfo propertyInfo, final List<?> data)
      throws EntityProviderException {
    CircleStreamBuffer buffer = new CircleStreamBuffer();


    try {
      BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(buffer.getOutputStream(), DEFAULT_CHARSET));
      new JsonCollectionEntityProducer().append(writer, propertyInfo, data);
      writer.flush();
      buffer.closeWrite();


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

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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);


    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");


    NamespaceContext ctx = new SimpleNamespaceContext(prefixMap);
    XMLUnit.setXpathNamespaceContext(ctx);


    String metadata = StringHelper.inputStreamToString(csb.getInputStream());
    assertXpathExists("/edmx:Edmx/edmx:DataServices/a:Schema/a:test", metadata);
  }

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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);


    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");
    prefixMap.put("b", "namespace1");
    prefixMap.put("prefix", "namespace2");
    prefixMap.put("pre", "namespaceForAnno");


    NamespaceContext ctx = new SimpleNamespaceContext(prefixMap);
    XMLUnit.setXpathNamespaceContext(ctx);


    String metadata = StringHelper.inputStreamToString(csb.getInputStream());
    assertXpathExists("/edmx:Edmx/edmx:DataServices/a:Schema/a:test", metadata);
    assertXpathExists("/edmx:Edmx/edmx:DataServices/a:Schema/a:schemaElementTest1", metadata);
    assertXpathExists("/edmx:Edmx/edmx:DataServices/a:Schema/a:schemaElementTest1/b:schemaElementTest2", metadata);
    assertXpathExists("/edmx:Edmx/edmx:DataServices/a:Schema/a:schemaElementTest1/prefix:schemaElementTest3", metadata);
    assertXpathExists(

View Full Code Here

    entityTypes.add(entityType);
    schema.setEntityTypes(entityTypes);


    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);


    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");


    NamespaceContext ctx = new SimpleNamespaceContext(prefixMap);
    XMLUnit.setXpathNamespaceContext(ctx);


    String metadata = StringHelper.inputStreamToString(csb.getInputStream());
    assertXpathExists("/edmx:Edmx/edmx:DataServices/a:Schema/a:test", metadata);
  }

View Full Code Here

    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);
    String metadata = StringHelper.inputStreamToString(csb.getInputStream());


    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");
    prefixMap.put("atom", "http://www.w3.org/2005/Atom");

View Full Code Here

    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);
    String metadata = StringHelper.inputStreamToString(csb.getInputStream());


    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");
    prefixMap.put("atom", "http://www.w3.org/2005/Atom");

View Full Code Here

    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);
    String metadata = StringHelper.inputStreamToString(csb.getInputStream());


    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");
    prefixMap.put("atom", "http://www.w3.org/2005/Atom");

View Full Code Here

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