libcore/plugins/http/HttpServerIDMap.hpp

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// Copyright (c) 2012 Sirikata 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 _SIRIKATA_HTTP_SERVERID_MAP_HPP_
#define _SIRIKATA_HTTP_SERVERID_MAP_HPP_

#include <sirikata/core/network/ServerIDMap.hpp>
#include <sirikata/core/transfer/HttpManager.hpp>

namespace Sirikata {

class HttpServerIDMap : public ServerIDMap {
    const String mInternalHost;
    const String mInternalService;
    const String mInternalPath;

    const String mExternalHost;
    const String mExternalService;
    const String mExternalPath;

    const uint32 mRetries;

    struct RequestInfo {
        RequestInfo(
            const ServerID& _sid, Address4LookupCallback _cb,
            const String& _host,
            const String& _service,
            const String& _path)
         : sid(_sid), cb(_cb), host(_host), service(_service), path(_path)
        {}

        const ServerID sid;
        const Address4LookupCallback cb;
        const String host;
        const String service;
        const String path;
    };

    void startLookup(
        const RequestInfo& ri,
        const uint32 retry
    );
    void finishLookup(
        const RequestInfo& ri,
        const uint32 retry,
        Transfer::HttpManager::HttpResponsePtr response,
        Transfer::HttpManager::ERR_TYPE error,
        const boost::system::error_code &boost_error);
    // Returns true if retrying. If returns false, caller should report error.
    bool retryOrFail(
        const RequestInfo& ri,
        const uint32 retry
    );
public:
    HttpServerIDMap(
        Context* ctx,
        const String& internal_host, const String& internal_service, const String& internal_path,
        const String& external_host, const String& external_service, const String& external_path,
        uint32 retries
    );
    virtual ~HttpServerIDMap() {}

    virtual void lookupInternal(const ServerID& sid, Address4LookupCallback cb);
    virtual void lookupExternal(const ServerID& sid, Address4LookupCallback cb);
    virtual void lookupRandomExternal(Address4LookupCallback cb);
};

} // namespace Sirikata

#endif //_SIRIKATA_HTTP_SERVERID_MAP_HPP_