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56 lines
1.6 KiB
56 lines
1.6 KiB
6 months ago
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#pragma once
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#include "cache.h"
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#include "curlfuncs.h"
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#include "merrors.h"
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#include <json/json.h>
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using michlib::Error;
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using michlib::RetVal;
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class CopernicusCatalog
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{
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static const MString caturl;
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std::unique_ptr<GenericCache> cache;
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CURLRAII chandle;
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Json::Value catalog;
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char curlerr[CURL_ERROR_SIZE];
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// Download JSON from url
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RetVal<Json::Value> GetJSON(const MString& url) const;
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// Download catalog
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Error GetCatalog();
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// Asset url from dataset
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RetVal<MString> AssetURL(const MString& prod, const MString& dataset, const MString& asset) const;
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public:
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CopernicusCatalog();
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// List of products
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RetVal<std::vector<MString>> ProductList() const;
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// List of datasets in product
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RetVal<std::vector<MString>> DatasetList(const MString& prod) const;
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// URL of product
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RetVal<MString> ProductURL(const MString& prod) const;
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// URL of dataset
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RetVal<MString> DatasetURL(const MString& prod, const MString& dataset) const;
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// URL of native data (files) in dataset
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RetVal<MString> DatasetNativeURL(const MString& prod, const MString& dataset) const { return AssetURL(prod, dataset, "native"); }
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// URL of timechuncked data (files) in dataset
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RetVal<MString> DatasetTimeURL(const MString& prod, const MString& dataset) const { return AssetURL(prod, dataset, "timeChunked"); }
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// URL of geochuncked data (files) in dataset
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RetVal<MString> DatasetGeoURL(const MString& prod, const MString& dataset) const { return AssetURL(prod, dataset, "geoChunked"); }
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bool Valid() const { return catalog.isObject(); }
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explicit operator bool() const { return Valid(); }
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};
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