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/*
* Copyright (C) 2021 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2021 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-runtime-lib
* Created on: 8 июн. 2021 г.
*
* lsp-runtime-lib is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-runtime-lib is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-runtime-lib. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_RESOURCE_PREFIXLOADER_H_
#define LSP_PLUG_IN_RESOURCE_PREFIXLOADER_H_
#include <lsp-plug.in/resource/ILoader.h>
#include <lsp-plug.in/lltl/parray.h>
namespace lsp
{
namespace resource
{
/**
* This loader resolves resources according to the specified prefix
* Multiple prefixes are possible
*/
class PrefixLoader: public ILoader
{
private:
ILoader & operator = (const ILoader &);
PrefixLoader(const PrefixLoader &);
protected:
typedef struct prefix_t
{
LSPString sPrefix;
ILoader *pLoader;
bool bFree;
} prefix_t;
protected:
lltl::parray<prefix_t> vLoaders;
ILoader *pDefault;
protected:
ILoader *lookup_prefix(LSPString *dst, const LSPString *path);
ILoader *lookup_prefix(LSPString *dst, const char *path);
ILoader *lookup_prefix(LSPString *dst, const io::Path *path);
public:
explicit PrefixLoader(ILoader *dfl = NULL);
virtual ~PrefixLoader();
public:
/**
* Associate some loader with prefix, loader will be automatically destroyed on destruction
* @param prefix prefix to use
* @param loader loader to associate
* @param free free after use
* @return status of operation
*/
status_t add_prefix(const char *prefix, ILoader *loader, bool free);
status_t add_prefix(const LSPString *prefix, ILoader *loader, bool free);
status_t add_prefix(const io::Path *prefix, ILoader *loader, bool free);
public:
virtual io::IInStream *read_stream(const char *name);
virtual io::IInStream *read_stream(const LSPString *name);
virtual io::IInStream *read_stream(const io::Path *name);
virtual io::IInSequence *read_sequence(const char *name, const char *charset = NULL);
virtual io::IInSequence *read_sequence(const LSPString *name, const char *charset = NULL);
virtual io::IInSequence *read_sequence(const io::Path *name, const char *charset = NULL);
virtual ssize_t enumerate(const char *path, resource_t **list);
virtual ssize_t enumerate(const LSPString *path, resource_t **list);
virtual ssize_t enumerate(const io::Path *path, resource_t **list);
};
}
}
#endif /* LSP_PLUG_IN_RESOURCE_PREFIXLOADER_H_ */
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