feat(resource_resolver): add class and unit test

src/rime/resource_resolver.cc

@@ -0,0 +1,16 @@
+//
+// Copyright RIME Developers
+// Distributed under the BSD License
+//
+
+#include <rime/resource_resolver.h>
+
+namespace rime {
+
+boost::filesystem::path ResourceResolver::ResolvePath(const string& resource_id) {
+  return boost::filesystem::absolute(
+      boost::filesystem::path(type_.prefix + resource_id + type_.suffix),
+      root_path_);
+}
+
+}  // namespace rime

src/rime/resource_resolver.h

@@ -0,0 +1,40 @@
+//
+// Copyright RIME Developers
+// Distributed under the BSD License
+//
+
+#ifndef RIME_RESOURCE_RESOLVER_H_
+#define RIME_RESOURCE_RESOLVER_H_
+
+#include <boost/filesystem.hpp>
+#include <rime/common.h>
+
+namespace rime {
+
+class ResourceResolver;
+
+struct ResourceType {
+  string name;
+  string prefix;
+  string suffix;
+};
+
+class ResourceResolver {
+ public:
+  explicit ResourceResolver(const ResourceType type) : type_(type) {
+  }
+  boost::filesystem::path ResolvePath(const string& resource_id);
+  void set_root_path(const boost::filesystem::path& root_path) {
+    root_path_ = root_path;
+  }
+  boost::filesystem::path root_path() const {
+    return root_path_;
+  }
+ private:
+  const ResourceType type_;
+  boost::filesystem::path root_path_;
+};
+
+}  // namespace rime
+
+#endif  // RIME_RESOURCE_RESOLVER_H_

test/resource_resolver_test.cc

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+#include <gtest/gtest.h>
+#include <rime/resource_resolver.h>
+
+using namespace rime;
+
+TEST(RimeResourceResolverTest, ResolvePath) {
+  const auto type = ResourceType{
+    "minerals",
+    "not_",
+    ".minerals",
+  };
+  the<ResourceResolver> rr(new ResourceResolver(type));
+  rr->set_root_path("/starcraft");
+  auto actual = rr->ResolvePath("enough");
+  boost::filesystem::path expected = "/starcraft/not_enough.minerals";
+  EXPECT_TRUE(expected == actual);
+}