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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_TEST_WEBDRIVER_COMMANDS_COMMAND_H_
#define CHROME_TEST_WEBDRIVER_COMMANDS_COMMAND_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
#include "base/scoped_ptr.h"
#include "base/values.h"
#include "base/json/json_writer.h"
#include "chrome/test/webdriver/error_codes.h"
#include "chrome/test/webdriver/commands/response.h"
namespace webdriver {
// Base class for a command mapped to a URL in the WebDriver REST API. Each
// URL may respond to commands sent with a DELETE, GET/HEAD, or POST HTTP
// request. For more information on the WebDriver REST API, see
// http://code.google.com/p/selenium/wiki/JsonWireProtocol
class Command {
public:
inline Command(const std::vector<std::string>& path_segments,
const DictionaryValue* const parameters)
: path_segments_(path_segments),
parameters_(parameters) {}
virtual ~Command() {}
// Indicates which HTTP methods this command URL responds to.
virtual bool DoesDelete() { return false; }
virtual bool DoesGet() { return false; }
virtual bool DoesPost() { return false; }
// Initializes this command for execution. If initialization fails, will
// return |false| and populate the |response| with the necessary information
// to return to the client.
virtual bool Init(Response* const response) { return true; }
// Executes the corresponding variant of this command URL.
// Always called after |Init()| and called from the Execute function.
// Any failure is handled as a return code found in Response.
virtual void ExecuteDelete(Response* const response) {}
virtual void ExecuteGet(Response* const response) {}
virtual void ExecutePost(Response* const response) {}
protected:
// Returns the path variable encoded at the |i|th index (0-based) in the
// request URL for this command. If the index is out of bounds, an empty
// string will be returned.
inline std::string GetPathVariable(const size_t i) const {
return i < path_segments_.size() ? path_segments_.at(i) : "";
}
// Returns the command parameter with the given |key| as a string. Returns
// false if there is no such parameter, or if it is not a string.
bool GetStringASCIIParameter(const std::string& key, std::string* out) const;
private:
const std::vector<std::string> path_segments_;
const scoped_ptr<const DictionaryValue> parameters_;
DISALLOW_COPY_AND_ASSIGN(Command);
};
} // namespace webdriver
#endif // CHROME_TEST_WEBDRIVER_COMMANDS_COMMAND_H_
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