public Request<ListActivityTypesRequest> marshall(
      ListActivityTypesRequest listActivityTypesRequest) {
    if (listActivityTypesRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<ListActivityTypesRequest> request =
        new DefaultRequest<ListActivityTypesRequest>(
            listActivityTypesRequest, "AmazonSimpleWorkflow");
    String target = "SimpleWorkflowService.ListActivityTypes";
    request.addHeader("X-Amz-Target", target);
    request.addHeader("Content-Type", "application/x-amz-json-1.0");
    request.setHttpMethod(POST);

    try {
      StringWriter stringWriter = new StringWriter();
      JSONWriter jsonWriter = new JSONWriter(stringWriter);
      jsonWriter.object();

      if (listActivityTypesRequest.getDomain() != null) {
        jsonWriter.key("domain").value(listActivityTypesRequest.getDomain());
      }
      if (listActivityTypesRequest.getName() != null) {
        jsonWriter.key("name").value(listActivityTypesRequest.getName());
      }
      if (listActivityTypesRequest.getRegistrationStatus() != null) {
        jsonWriter
            .key("registrationStatus")
            .value(listActivityTypesRequest.getRegistrationStatus());
      }
      if (listActivityTypesRequest.getNextPageToken() != null) {
        jsonWriter.key("nextPageToken").value(listActivityTypesRequest.getNextPageToken());
      }
      if (listActivityTypesRequest.getMaximumPageSize() != null) {
        jsonWriter.key("maximumPageSize").value(listActivityTypesRequest.getMaximumPageSize());
      }
      if (listActivityTypesRequest.isReverseOrder() != null) {
        jsonWriter.key("reverseOrder").value(listActivityTypesRequest.isReverseOrder());
      }

      jsonWriter.endObject();

      String snippet = stringWriter.toString();
      byte[] content = snippet.getBytes("UTF-8");
      request.setContent(new StringInputStream(snippet));
      request.addHeader("Content-Length", Integer.toString(content.length));
      return request;
    } catch (Throwable t) {
      throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
    }
  }
  public Request<ListClosedWorkflowExecutionsRequest> marshall(
      ListClosedWorkflowExecutionsRequest listClosedWorkflowExecutionsRequest) {
    if (listClosedWorkflowExecutionsRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<ListClosedWorkflowExecutionsRequest> request =
        new DefaultRequest<ListClosedWorkflowExecutionsRequest>(
            listClosedWorkflowExecutionsRequest, "AmazonSimpleWorkflow");
    String target = "SimpleWorkflowService.ListClosedWorkflowExecutions";
    request.addHeader("X-Amz-Target", target);
    request.addHeader("Content-Type", "application/x-amz-json-1.0");

    request.setHttpMethod(HttpMethodName.POST);

    String uriResourcePath = "";

    uriResourcePath = uriResourcePath.replaceAll("//", "/");

    if (uriResourcePath.contains("?")) {
      String queryString = uriResourcePath.substring(uriResourcePath.indexOf("?") + 1);
      uriResourcePath = uriResourcePath.substring(0, uriResourcePath.indexOf("?"));

      for (String s : queryString.split("[;&]")) {
        String[] nameValuePair = s.split("=");
        if (nameValuePair.length == 2) {
          request.addParameter(nameValuePair[0], nameValuePair[1]);
        } else {
          request.addParameter(s, null);
        }
      }
    }

    request.setResourcePath(uriResourcePath);

    try {
      StringWriter stringWriter = new StringWriter();
      JSONWriter jsonWriter = new JSONWriter(stringWriter);

      jsonWriter.object();

      if (listClosedWorkflowExecutionsRequest.getDomain() != null) {
        jsonWriter.key("domain").value(listClosedWorkflowExecutionsRequest.getDomain());
      }
      ExecutionTimeFilter startTimeFilter =
          listClosedWorkflowExecutionsRequest.getStartTimeFilter();
      if (startTimeFilter != null) {

        jsonWriter.key("startTimeFilter");
        jsonWriter.object();

        if (startTimeFilter.getOldestDate() != null) {
          jsonWriter.key("oldestDate").value(startTimeFilter.getOldestDate());
        }
        if (startTimeFilter.getLatestDate() != null) {
          jsonWriter.key("latestDate").value(startTimeFilter.getLatestDate());
        }
        jsonWriter.endObject();
      }
      ExecutionTimeFilter closeTimeFilter =
          listClosedWorkflowExecutionsRequest.getCloseTimeFilter();
      if (closeTimeFilter != null) {

        jsonWriter.key("closeTimeFilter");
        jsonWriter.object();

        if (closeTimeFilter.getOldestDate() != null) {
          jsonWriter.key("oldestDate").value(closeTimeFilter.getOldestDate());
        }
        if (closeTimeFilter.getLatestDate() != null) {
          jsonWriter.key("latestDate").value(closeTimeFilter.getLatestDate());
        }
        jsonWriter.endObject();
      }
      WorkflowExecutionFilter executionFilter =
          listClosedWorkflowExecutionsRequest.getExecutionFilter();
      if (executionFilter != null) {

        jsonWriter.key("executionFilter");
        jsonWriter.object();

        if (executionFilter.getWorkflowId() != null) {
          jsonWriter.key("workflowId").value(executionFilter.getWorkflowId());
        }
        jsonWriter.endObject();
      }
      CloseStatusFilter closeStatusFilter =
          listClosedWorkflowExecutionsRequest.getCloseStatusFilter();
      if (closeStatusFilter != null) {

        jsonWriter.key("closeStatusFilter");
        jsonWriter.object();

        if (closeStatusFilter.getStatus() != null) {
          jsonWriter.key("status").value(closeStatusFilter.getStatus());
        }
        jsonWriter.endObject();
      }
      WorkflowTypeFilter typeFilter = listClosedWorkflowExecutionsRequest.getTypeFilter();
      if (typeFilter != null) {

        jsonWriter.key("typeFilter");
        jsonWriter.object();

        if (typeFilter.getName() != null) {
          jsonWriter.key("name").value(typeFilter.getName());
        }
        if (typeFilter.getVersion() != null) {
          jsonWriter.key("version").value(typeFilter.getVersion());
        }
        jsonWriter.endObject();
      }
      TagFilter tagFilter = listClosedWorkflowExecutionsRequest.getTagFilter();
      if (tagFilter != null) {

        jsonWriter.key("tagFilter");
        jsonWriter.object();

        if (tagFilter.getTag() != null) {
          jsonWriter.key("tag").value(tagFilter.getTag());
        }
        jsonWriter.endObject();
      }
      if (listClosedWorkflowExecutionsRequest.getNextPageToken() != null) {
        jsonWriter
            .key("nextPageToken")
            .value(listClosedWorkflowExecutionsRequest.getNextPageToken());
      }
      if (listClosedWorkflowExecutionsRequest.getMaximumPageSize() != null) {
        jsonWriter
            .key("maximumPageSize")
            .value(listClosedWorkflowExecutionsRequest.getMaximumPageSize());
      }
      if (listClosedWorkflowExecutionsRequest.isReverseOrder() != null) {
        jsonWriter.key("reverseOrder").value(listClosedWorkflowExecutionsRequest.isReverseOrder());
      }

      jsonWriter.endObject();

      String snippet = stringWriter.toString();
      byte[] content = snippet.getBytes("UTF-8");
      request.setContent(new StringInputStream(snippet));
      request.addHeader("Content-Length", Integer.toString(content.length));
    } catch (Throwable t) {
      throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
    }

    return request;
  }
  public Request<StartWorkflowExecutionRequest> marshall(
      StartWorkflowExecutionRequest startWorkflowExecutionRequest) {
    if (startWorkflowExecutionRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<StartWorkflowExecutionRequest> request =
        new DefaultRequest<StartWorkflowExecutionRequest>(
            startWorkflowExecutionRequest, "AmazonSimpleWorkflow");
    String target = "SimpleWorkflowService.StartWorkflowExecution";
    request.addHeader("X-Amz-Target", target);

    request.setHttpMethod(HttpMethodName.POST);
    request.setResourcePath("");

    try {
      StringWriter stringWriter = new StringWriter();
      JSONWriter jsonWriter = new JSONWriter(stringWriter);

      jsonWriter.object();

      if (startWorkflowExecutionRequest.getDomain() != null) {
        jsonWriter.key("domain").value(startWorkflowExecutionRequest.getDomain());
      }
      if (startWorkflowExecutionRequest.getWorkflowId() != null) {
        jsonWriter.key("workflowId").value(startWorkflowExecutionRequest.getWorkflowId());
      }
      WorkflowType workflowType = startWorkflowExecutionRequest.getWorkflowType();
      if (workflowType != null) {

        jsonWriter.key("workflowType");
        jsonWriter.object();

        if (workflowType.getName() != null) {
          jsonWriter.key("name").value(workflowType.getName());
        }
        if (workflowType.getVersion() != null) {
          jsonWriter.key("version").value(workflowType.getVersion());
        }
        jsonWriter.endObject();
      }
      TaskList taskList = startWorkflowExecutionRequest.getTaskList();
      if (taskList != null) {

        jsonWriter.key("taskList");
        jsonWriter.object();

        if (taskList.getName() != null) {
          jsonWriter.key("name").value(taskList.getName());
        }
        jsonWriter.endObject();
      }
      if (startWorkflowExecutionRequest.getInput() != null) {
        jsonWriter.key("input").value(startWorkflowExecutionRequest.getInput());
      }
      if (startWorkflowExecutionRequest.getExecutionStartToCloseTimeout() != null) {
        jsonWriter
            .key("executionStartToCloseTimeout")
            .value(startWorkflowExecutionRequest.getExecutionStartToCloseTimeout());
      }

      com.amazonaws.internal.ListWithAutoConstructFlag<String> tagListList =
          (com.amazonaws.internal.ListWithAutoConstructFlag<String>)
              (startWorkflowExecutionRequest.getTagList());
      if (tagListList != null && !(tagListList.isAutoConstruct() && tagListList.isEmpty())) {

        jsonWriter.key("tagList");
        jsonWriter.array();

        for (String tagListListValue : tagListList) {
          if (tagListListValue != null) {
            jsonWriter.value(tagListListValue);
          }
        }
        jsonWriter.endArray();
      }
      if (startWorkflowExecutionRequest.getTaskStartToCloseTimeout() != null) {
        jsonWriter
            .key("taskStartToCloseTimeout")
            .value(startWorkflowExecutionRequest.getTaskStartToCloseTimeout());
      }
      if (startWorkflowExecutionRequest.getChildPolicy() != null) {
        jsonWriter.key("childPolicy").value(startWorkflowExecutionRequest.getChildPolicy());
      }

      jsonWriter.endObject();

      String snippet = stringWriter.toString();
      byte[] content = snippet.getBytes(UTF8);
      request.setContent(new StringInputStream(snippet));
      request.addHeader("Content-Length", Integer.toString(content.length));
      request.addHeader("Content-Type", "application/x-amz-json-1.0");
    } catch (Throwable t) {
      throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
    }

    return request;
  }
  public Request<RegisterWorkflowTypeRequest> marshall(
      RegisterWorkflowTypeRequest registerWorkflowTypeRequest) {
    if (registerWorkflowTypeRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<RegisterWorkflowTypeRequest> request =
        new DefaultRequest<RegisterWorkflowTypeRequest>(
            registerWorkflowTypeRequest, "AmazonSimpleWorkflow");
    String target = "SimpleWorkflowService.RegisterWorkflowType";
    request.addHeader("X-Amz-Target", target);
    request.addHeader("Content-Type", "application/x-amz-json-1.0");
    request.setHttpMethod(POST);

    try {
      StringWriter stringWriter = new StringWriter();
      JSONWriter jsonWriter = new JSONWriter(stringWriter);
      jsonWriter.object();

      if (registerWorkflowTypeRequest.getDomain() != null) {
        jsonWriter.key("domain").value(registerWorkflowTypeRequest.getDomain());
      }
      if (registerWorkflowTypeRequest.getName() != null) {
        jsonWriter.key("name").value(registerWorkflowTypeRequest.getName());
      }
      if (registerWorkflowTypeRequest.getVersion() != null) {
        jsonWriter.key("version").value(registerWorkflowTypeRequest.getVersion());
      }
      if (registerWorkflowTypeRequest.getDescription() != null) {
        jsonWriter.key("description").value(registerWorkflowTypeRequest.getDescription());
      }
      if (registerWorkflowTypeRequest.getDefaultTaskStartToCloseTimeout() != null) {
        jsonWriter
            .key("defaultTaskStartToCloseTimeout")
            .value(registerWorkflowTypeRequest.getDefaultTaskStartToCloseTimeout());
      }
      if (registerWorkflowTypeRequest.getDefaultExecutionStartToCloseTimeout() != null) {
        jsonWriter
            .key("defaultExecutionStartToCloseTimeout")
            .value(registerWorkflowTypeRequest.getDefaultExecutionStartToCloseTimeout());
      }
      if (registerWorkflowTypeRequest != null) {
        TaskList taskListDefaultTaskList = registerWorkflowTypeRequest.getDefaultTaskList();
        if (taskListDefaultTaskList != null) {
          jsonWriter.key("defaultTaskList").object();
          if (taskListDefaultTaskList.getName() != null) {
            jsonWriter.key("name").value(taskListDefaultTaskList.getName());
          }
          jsonWriter.endObject();
        }
      }
      if (registerWorkflowTypeRequest.getDefaultChildPolicy() != null) {
        jsonWriter
            .key("defaultChildPolicy")
            .value(registerWorkflowTypeRequest.getDefaultChildPolicy());
      }

      jsonWriter.endObject();

      String snippet = stringWriter.toString();
      byte[] content = snippet.getBytes("UTF-8");
      request.setContent(new StringInputStream(snippet));
      request.addHeader("Content-Length", Integer.toString(content.length));
      return request;
    } catch (Throwable t) {
      throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
    }
  }
  public Request<StartWorkflowExecutionRequest> marshall(
      StartWorkflowExecutionRequest startWorkflowExecutionRequest) {
    if (startWorkflowExecutionRequest == null) {
      throw new AmazonClientException("Invalid argument passed to marshall(...)");
    }

    Request<StartWorkflowExecutionRequest> request =
        new DefaultRequest<StartWorkflowExecutionRequest>(
            startWorkflowExecutionRequest, "AmazonSimpleWorkflow");
    String target = "SimpleWorkflowService.StartWorkflowExecution";
    request.addHeader("X-Amz-Target", target);
    request.addHeader("Content-Type", "application/x-amz-json-1.0");

    request.setHttpMethod(HttpMethodName.POST);

    String uriResourcePath = "";

    uriResourcePath = uriResourcePath.replaceAll("//", "/");

    if (uriResourcePath.contains("?")) {
      String queryString = uriResourcePath.substring(uriResourcePath.indexOf("?") + 1);
      uriResourcePath = uriResourcePath.substring(0, uriResourcePath.indexOf("?"));

      for (String s : queryString.split("[;&]")) {
        String[] nameValuePair = s.split("=");
        if (nameValuePair.length == 2) {
          request.addParameter(nameValuePair[0], nameValuePair[1]);
        } else {
          request.addParameter(s, null);
        }
      }
    }

    request.setResourcePath(uriResourcePath);

    try {
      StringWriter stringWriter = new StringWriter();
      JSONWriter jsonWriter = new JSONWriter(stringWriter);

      jsonWriter.object();

      if (startWorkflowExecutionRequest.getDomain() != null) {
        jsonWriter.key("domain").value(startWorkflowExecutionRequest.getDomain());
      }
      if (startWorkflowExecutionRequest.getWorkflowId() != null) {
        jsonWriter.key("workflowId").value(startWorkflowExecutionRequest.getWorkflowId());
      }
      WorkflowType workflowType = startWorkflowExecutionRequest.getWorkflowType();
      if (workflowType != null) {

        jsonWriter.key("workflowType");
        jsonWriter.object();

        if (workflowType.getName() != null) {
          jsonWriter.key("name").value(workflowType.getName());
        }
        if (workflowType.getVersion() != null) {
          jsonWriter.key("version").value(workflowType.getVersion());
        }
        jsonWriter.endObject();
      }
      TaskList taskList = startWorkflowExecutionRequest.getTaskList();
      if (taskList != null) {

        jsonWriter.key("taskList");
        jsonWriter.object();

        if (taskList.getName() != null) {
          jsonWriter.key("name").value(taskList.getName());
        }
        jsonWriter.endObject();
      }
      if (startWorkflowExecutionRequest.getInput() != null) {
        jsonWriter.key("input").value(startWorkflowExecutionRequest.getInput());
      }
      if (startWorkflowExecutionRequest.getExecutionStartToCloseTimeout() != null) {
        jsonWriter
            .key("executionStartToCloseTimeout")
            .value(startWorkflowExecutionRequest.getExecutionStartToCloseTimeout());
      }

      java.util.List<String> tagListList = startWorkflowExecutionRequest.getTagList();
      if (tagListList != null && tagListList.size() > 0) {

        jsonWriter.key("tagList");
        jsonWriter.array();

        for (String tagListListValue : tagListList) {
          if (tagListListValue != null) {
            jsonWriter.value(tagListListValue);
          }
        }
        jsonWriter.endArray();
      }
      if (startWorkflowExecutionRequest.getTaskStartToCloseTimeout() != null) {
        jsonWriter
            .key("taskStartToCloseTimeout")
            .value(startWorkflowExecutionRequest.getTaskStartToCloseTimeout());
      }
      if (startWorkflowExecutionRequest.getChildPolicy() != null) {
        jsonWriter.key("childPolicy").value(startWorkflowExecutionRequest.getChildPolicy());
      }

      jsonWriter.endObject();

      String snippet = stringWriter.toString();
      byte[] content = snippet.getBytes("UTF-8");
      request.setContent(new StringInputStream(snippet));
      request.addHeader("Content-Length", Integer.toString(content.length));
    } catch (Throwable t) {
      throw new AmazonClientException("Unable to marshall request to JSON: " + t.getMessage(), t);
    }

    return request;
  }