Examples of JsonStreamWriter

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

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  @Override
  public Object visitLiteral(final LiteralExpression literal, final EdmLiteral edmLiteral) {
    try {
      StringWriter writer = new StringWriter();
      JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);
      jsonStreamWriter.beginObject().namedStringValueRaw("nodeType", literal.getKind().toString()).separator()
          .namedStringValueRaw("type", getType(literal)).separator().namedStringValue("value", edmLiteral.getLiteral())
          .endObject();
      writer.flush();
      return writer.toString();
    } catch (final IOException e) {
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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  @Override
  public Object visitMethod(final MethodExpression methodExpression, final MethodOperator method,
      final List<Object> parameters) {
    try {
      StringWriter writer = new StringWriter();
      JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);
      jsonStreamWriter.beginObject().namedStringValueRaw("nodeType", methodExpression.getKind().toString()).separator()
          .namedStringValueRaw("operator", method.toUriLiteral()).separator().namedStringValueRaw("type",
              getType(methodExpression)).separator().name("parameters").beginArray();
      boolean first = true;
      for (Object parameter : parameters) {
        if (first) {
          first = false;
        } else {
          jsonStreamWriter.separator();
        }
        jsonStreamWriter.unquotedValue(parameter.toString());
      }
      jsonStreamWriter.endArray().endObject();
      writer.flush();
      return writer.toString();
    } catch (final IOException e) {
      return null;
    }
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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  @Override
  public Object visitMember(final MemberExpression memberExpression, final Object path, final Object property) {
    try {
      StringWriter writer = new StringWriter();
      JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);
      jsonStreamWriter.beginObject().namedStringValueRaw("nodeType", memberExpression.getKind().toString()).separator()
          .namedStringValueRaw("type", getType(memberExpression)).separator().name("source").unquotedValue(
              path.toString()).separator().name("path").unquotedValue(property.toString()).endObject();
      writer.flush();
      return writer.toString();
    } catch (final IOException e) {
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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  @Override
  public Object visitProperty(final PropertyExpression propertyExpression, final String uriLiteral,
      final EdmTyped edmProperty) {
    try {
      StringWriter writer = new StringWriter();
      JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);
      jsonStreamWriter.beginObject().namedStringValueRaw("nodeType", propertyExpression.getKind().toString())
          .separator().namedStringValue("name", uriLiteral).separator().namedStringValueRaw("type",
              getType(propertyExpression)).endObject();
      writer.flush();
      return writer.toString();
    } catch (final IOException e) {
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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  @Override
  public Object visitUnary(final UnaryExpression unaryExpression, final UnaryOperator operator, final Object operand) {
    try {
      StringWriter writer = new StringWriter();
      JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);
      jsonStreamWriter.beginObject().namedStringValueRaw("nodeType", unaryExpression.getKind().toString()).separator()
          .namedStringValueRaw("operator", operator.toUriLiteral()).separator().namedStringValueRaw("type",
              getType(unaryExpression)).separator().name("operand").unquotedValue(operand.toString()).endObject();
      writer.flush();
      return writer.toString();
    } catch (final IOException e) {
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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        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();
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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  }

  private InputStream wrapInJson(final List<DebugInfo> parts) throws IOException {
    CircleStreamBuffer csb = new CircleStreamBuffer();
    BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(csb.getOutputStream(), "UTF-8"));
    JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);
    jsonStreamWriter.beginObject();
    boolean first = true;
    for (final DebugInfo part : parts) {
      if (!first) {
        jsonStreamWriter.separator();
      }
      first = false;
      jsonStreamWriter.name(part.getName().toLowerCase(Locale.ROOT));
      part.appendJson(jsonStreamWriter);
    }
    jsonStreamWriter.endObject();
    writer.flush();
    csb.closeWrite();
    return csb.getInputStream();
  }
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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  }

  private String appendJson(final ODataResponse response) throws IOException {
    Writer writer = new StringWriter();
    DebugInfoBody body = new DebugInfoBody(response);
    body.appendJson(new JsonStreamWriter(writer));
    return writer.toString();
  }
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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        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();
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Examples of org.apache.olingo.odata2.core.ep.util.JsonStreamWriter

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    this.properties = properties == null ? EntityProviderWriteProperties.serviceRoot(null).build() : properties;
  }

  public void append(final Writer writer, final EntityInfoAggregator entityInfo, final List<Map<String, Object>> data,
      final boolean isRootElement) throws EntityProviderException {
    JsonStreamWriter jsonStreamWriter = new JsonStreamWriter(writer);

    try {
      jsonStreamWriter.beginObject();

      if (isRootElement) {
        jsonStreamWriter.name(FormatJson.D)
            .beginObject();
      }

      if (properties.getInlineCountType() == InlineCount.ALLPAGES) {
        final int inlineCount = properties.getInlineCount() == null ? 0 : properties.getInlineCount();
        jsonStreamWriter.namedStringValueRaw(FormatJson.COUNT, String.valueOf(inlineCount)).separator();
      }

      jsonStreamWriter.name(FormatJson.RESULTS)
          .beginArray();
      JsonEntryEntityProducer entryProducer = new JsonEntryEntityProducer(properties);
      boolean first = true;
      for (final Map<String, Object> entryData : data) {
        if (first) {
          first = false;
        } else {
          jsonStreamWriter.separator();
        }
        entryProducer.append(writer, entityInfo, entryData, false);
      }
      jsonStreamWriter.endArray();

      // Write "next" link.
      // To be compatible with other implementations out there, the link is
      // written directly after "__next" and not as "{"uri":"next link"}",
      // deviating from the OData 2.0 specification.
      if (properties.getNextLink() != null) {
        jsonStreamWriter.separator()
            .namedStringValue(FormatJson.NEXT, properties.getNextLink());
      }

      if (isRootElement) {
        jsonStreamWriter.endObject();
      }

      jsonStreamWriter.endObject();
    } catch (final IOException e) {
      throw new EntityProviderException(EntityProviderException.EXCEPTION_OCCURRED.addContent(e.getClass()
          .getSimpleName()), e);
    }
  }
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