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Save/Load

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* enchanted build.gradle
* added test for save/load (still incomplete)
* implemented save/load (still incomplete)
This commit is contained in:
Giacomo Bertolazzi
2019-06-13 17:53:43 +02:00
parent 34302b6e92
commit e4de9981be
4 changed files with 129 additions and 18 deletions
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19
src/berack96/sim/util/graph/Graph.java
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@@ -547,7 +547,6 @@ public interface Graph<V, W extends Number> extends Iterable<V> {
*/
Map<V, List<Edge<V, W>>> distance(V source) throws NullPointerException, IllegalArgumentException;
/*
static void save(Graph<?, ?> graph, String file) throws IOException {
Map<String, Object> map = new HashMap<>();
map.put("vertices", graph.vertices());
@@ -560,21 +559,27 @@ public interface Graph<V, W extends Number> extends Iterable<V> {
}
@SuppressWarnings("unchecked")
static void load(Graph<Object, Number> graph, String file) throws IOException {
static <V, W extends Number> void load(Graph<V, W> graph, String file) throws IOException {
graph.removeAllVertex();
Gson gson = new Gson();
FileReader reader = new FileReader(file);
StringBuilder fileContent = new StringBuilder();
int c;
while((c = reader.read()) != -1)
fileContent.append(c);
fileContent.append((char)c);
reader.close();
Map<String, Object> map = gson.fromJson(fileContent.toString(), Map.class);
graph.addAllVertices((Collection<Object>)map.get("vertices"));
graph.addAllEdges((Collection<Edge<Object, Number>>)map.get("edges"));
Collection<V> vertices = (Collection<V>)map.get("vertices");
graph.addAllVertices(vertices);
Collection<Map<String, Object>>collection = (Collection<Map<String, Object>>)map.get("edges");
for (Map<String, Object> edge : collection) {
graph.addEdge((V) edge.get("source"), (V) edge.get("destination"), (W) edge.get("weight"));
}
}
*/
// TODO maybe -> STATIC saveOnFile(orString) INSTANCE loadFromFile(orString), but need JSON parser
// TODO maybe, but i don't think so... STATIC DISTANCE V* -> V*