private static String prettyPrintObject()

in src/main/java/com/uber/cadence/internal/common/WorkflowExecutionUtils.java [781:950]
165 lines of code
39 McCabe index (conditional complexity)

  private static String prettyPrintObject(
      Object object,
      String methodToSkip,
      boolean skipNullsAndEmptyCollections,
      String indentation,
      boolean skipLevel,
      boolean printTypeName) {
    StringBuilder result = new StringBuilder();
    if (object == null) {
      return "null";
    }
    Class<? extends Object> clz = object.getClass();
    if (Number.class.isAssignableFrom(clz)) {
      return String.valueOf(object);
    }
    if (Boolean.class.isAssignableFrom(clz)) {
      return String.valueOf(object);
    }
    if (clz.equals(String.class)) {
      return (String) object;
    }
    if (clz.equals(byte[].class)) {
      return new String((byte[]) object, UTF_8);
    }
    if (ByteBuffer.class.isAssignableFrom(clz)) {
      byte[] bytes = org.apache.thrift.TBaseHelper.byteBufferToByteArray((ByteBuffer) object);
      return new String(bytes, UTF_8);
    }
    if (clz.equals(Date.class)) {
      return String.valueOf(object);
    }
    if (clz.equals(TaskList.class)) {
      return String.valueOf(((TaskList) object).getName());
    }
    if (clz.equals(ActivityType.class)) {
      return String.valueOf(((ActivityType) object).getName());
    }
    if (clz.equals(WorkflowType.class)) {
      return String.valueOf(((WorkflowType) object).getName());
    }
    if (Map.Entry.class.isAssignableFrom(clz)) {
      result.append(
          prettyPrintObject(
              ((Map.Entry) object).getKey(),
              methodToSkip,
              skipNullsAndEmptyCollections,
              "",
              skipLevel,
              printTypeName));
      result.append("=");
      result.append(
          prettyPrintObject(
              ((Map.Entry) object).getValue(),
              methodToSkip,
              skipNullsAndEmptyCollections,
              "",
              skipLevel,
              printTypeName));
      return result.toString();
    }
    if (Map.class.isAssignableFrom(clz)) {
      result.append("{ ");

      String prefix = "";
      for (Object entry : ((Map) object).entrySet()) {
        result.append(prefix);
        prefix = ", ";
        result.append(
            prettyPrintObject(
                entry, methodToSkip, skipNullsAndEmptyCollections, "", skipLevel, printTypeName));
      }

      result.append(" }");
      return result.toString();
    }
    if (Collection.class.isAssignableFrom(clz)) {
      return String.valueOf(object);
    }
    if (!skipLevel) {
      if (printTypeName) {
        result.append(object.getClass().getSimpleName());
        result.append(" ");
      }
      result.append("{");
    }
    Method[] eventMethods = object.getClass().getDeclaredMethods();
    boolean first = true;
    for (Method method : eventMethods) {
      String name = method.getName();
      if (!name.startsWith("get")
          || name.equals("getDecisionType")
          || method.getParameterCount() != 0
          || !Modifier.isPublic(method.getModifiers())) {
        continue;
      }
      if (name.equals(methodToSkip) || name.equals("getClass")) {
        continue;
      }
      if (Modifier.isStatic(method.getModifiers())) {
        continue;
      }
      Object value;
      try {
        value = method.invoke(object, (Object[]) null);
      } catch (InvocationTargetException e) {
        throw new RuntimeException(e.getTargetException());
      } catch (RuntimeException e) {
        throw e;
      } catch (Exception e) {
        throw new RuntimeException(e);
      }
      if (skipNullsAndEmptyCollections) {
        if (value == null) {
          continue;
        }
        if (value instanceof Map && ((Map<?, ?>) value).isEmpty()) {
          continue;
        }
        if (value instanceof Collection && ((Collection<?>) value).isEmpty()) {
          continue;
        }
      }
      if (!skipLevel) {
        if (first) {
          first = false;
        } else {
          result.append(";");
        }
        result.append("\n");
        result.append(indentation);
        result.append(INDENTATION);
        result.append(name.substring(3));
        result.append(" = ");
        // Pretty print JSON serialized exceptions.
        if (name.equals("getDetails") && value instanceof byte[]) {
          String details = new String((byte[]) value, UTF_8);
          details = prettyPrintJson(details, INDENTATION + INDENTATION);
          // GSON pretty prints, but doesn't let to set an initial indentation.
          // Thus indenting the pretty printed JSON through regexp :(.
          String replacement = "\n" + indentation + INDENTATION;
          details = details.replaceAll("\\n|\\\\n", replacement);
          result.append(details);
          continue;
        }
        result.append(
            prettyPrintObject(
                value,
                methodToSkip,
                skipNullsAndEmptyCollections,
                indentation + INDENTATION,
                false,
                false));
      } else {
        result.append(
            prettyPrintObject(
                value,
                methodToSkip,
                skipNullsAndEmptyCollections,
                indentation,
                false,
                printTypeName));
      }
    }
    if (!skipLevel) {
      result.append("\n");
      result.append(indentation);
      result.append("}");
    }
    return result.toString();
  }