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// Copyright (c) 2007-2008 Facebook
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
// See accompanying file LICENSE or visit the Scribe site at:
// @author Bobby Johnson
// @author Jason Sobel
#include "common.h"
* This class reads and parses a configuration
* describing a hierarchy of store objects.
* It reads a conf file with a proprietary format, although it could
* be changed to xml (or anything else that supports hierarchy) by only
* changing the code in this class.
class StoreConf;
typedef boost::shared_ptr<StoreConf> pStoreConf;
typedef std::map<std::string, std::string> string_map_t;
typedef std::map<std::string, pStoreConf> store_conf_map_t;
std::ostream& operator<<(std::ostream& os, const StoreConf& storeConf);
class StoreConf {
friend std::ostream& operator<<(std::ostream& os, const StoreConf& storeConf);
virtual ~StoreConf();
// Return value is true if the key exists, and false if it doesn't.
// This doesn't check for garbage ints or empty strings.
// The return parameter is untouched if the key isn't found.
void getAllStores(std::vector<pStoreConf>& _return);
bool getStore(const std::string& storeName, pStoreConf& _return);
bool getInt(const std::string& intName, long int& _return) const;
bool getUnsigned(const std::string& intName, unsigned long int& _return) const;
bool getUnsignedLongLong(const std::string& intName, unsigned long long& _return) const;
bool getFloat(const std::string& floatName, float & _return) const;
bool getString(const std::string& stringName, std::string& _return) const;
void setString(const std::string& stringName, const std::string& value);
void setUnsigned(const std::string& intName, unsigned long value);
void setUnsignedLongLong(const std::string& intName, unsigned long long value);
// Reads configuration from a file and throws an exception if it fails.
void parseConfig(const std::string& filename);
void setParent(pStoreConf parent);
string_map_t values;
store_conf_map_t stores;
pStoreConf parent;
static bool parseStore(/*in,out*/ std::queue<std::string>& raw_config,
/*out*/ StoreConf* parsed_config);
static std::string trimString(const std::string& str);
bool readConfFile(const std::string& filename, std::queue<std::string>& _return);
std::ostream& print(std::ostream& os, uint32_t depth, bool useSpace = true,
uint32_t tabw = 2) const;
#endif //!defined SCRIBE_CONF_H
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