From: Mikko Rasa <tdb@tdb.fi>
Date: Tue, 15 Nov 2016 15:57:21 +0000 (+0200)
Subject: Add a source class for builtin data
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=1133d979d230f7899cf24a4250ac006cbf91527b;p=libs%2Fdatafile.git

Add a source class for builtin data
---

diff --git a/source/builtinsource.cpp b/source/builtinsource.cpp
new file mode 100644
index 0000000..bdccd77
--- /dev/null
+++ b/source/builtinsource.cpp
@@ -0,0 +1,67 @@
+#include <cstring>
+#include <msp/io/memory.h>
+#include "builtinsource.h"
+#include "collection.h"
+
+using namespace std;
+
+namespace Msp {
+namespace DataFile {
+
+void BuiltinSource::add_object(const string &name, const char *content, unsigned size)
+{
+	objects[name] = Object(content, size);
+}
+
+void BuiltinSource::add_object(const string &name, const char *content)
+{
+	add_object(name, content, strlen(content));
+}
+
+bool BuiltinSource::is_loadable(const CollectionItemTypeBase &, const string &name) const
+{
+	return objects.count(name);
+}
+
+CollectionSource::NameList BuiltinSource::get_names(const CollectionItemTypeBase &type) const
+{
+	NameList names;
+	for(ObjectMap::const_iterator i=objects.begin(); i!=objects.end(); ++i)
+		if(type.match_name(i->first))
+			names.push_back(i->first);
+	return names;
+}
+
+void BuiltinSource::load(Collection &coll, const CollectionItemTypeBase &type, const string &name) const
+{
+	ObjectMap::const_iterator i = objects.find(name);
+	if(i!=objects.end())
+	{
+		IO::Memory in(i->second.data, i->second.size);
+		Parser parser(in, name);
+		type.load_item(coll, parser, name);
+	}
+}
+
+IO::Seekable *BuiltinSource::open(const string &name) const
+{
+	ObjectMap::const_iterator i = objects.find(name);
+	if(i!=objects.end())
+		return new IO::Memory(i->second.data, i->second.size);
+
+	return 0;
+}
+
+
+BuiltinSource::Object::Object():
+	data(0),
+	size(0)
+{ }
+
+BuiltinSource::Object::Object(const char *d, unsigned s):
+	data(d),
+	size(s)
+{ }
+
+} // namespace DataFile
+} // namespace Msp
diff --git a/source/builtinsource.h b/source/builtinsource.h
new file mode 100644
index 0000000..244191c
--- /dev/null
+++ b/source/builtinsource.h
@@ -0,0 +1,38 @@
+#ifndef MSP_DATAFILE_BUILTINSOURCE_H_
+#define MSP_DATAFILE_BUILTINSOURCE_H_
+
+#include "collectionsource.h"
+
+namespace Msp {
+namespace DataFile {
+
+class BuiltinSource: public CollectionSource
+{
+private:
+	struct Object
+	{
+		const char *data;
+		unsigned size;
+
+		Object();
+		Object(const char *, unsigned);
+	};
+
+	typedef std::map<std::string, Object> ObjectMap;
+
+	ObjectMap objects;
+
+public:
+	void add_object(const std::string &, const char *, unsigned);
+	void add_object(const std::string &, const char *);
+
+	virtual bool is_loadable(const CollectionItemTypeBase &, const std::string &) const;
+	virtual NameList get_names(const CollectionItemTypeBase &) const;
+	virtual void load(Collection &, const CollectionItemTypeBase &, const std::string &) const;
+	virtual IO::Seekable *open(const std::string &) const;
+};
+
+} // namespace DataFile
+} // namespace Msp
+
+#endif