1.0

旧的java项目/itcast/server/session/GroupSessionMemoryImpl.java

@@ -0,0 +1,55 @@
+package cn.itcast.server.session;
+
+import io.netty.channel.Channel;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.stream.Collectors;
+
+public class GroupSessionMemoryImpl implements GroupSession {
+    private final Map<String, Group> groupMap = new ConcurrentHashMap<>();
+
+    @Override
+    public Group createGroup(String name, Set<String> members) {
+        Group group = new Group(name, members);
+        return groupMap.putIfAbsent(name, group);
+    }
+
+    @Override
+    public Group joinMember(String name, String member) {
+        return groupMap.computeIfPresent(name, (key, value) -> {
+//            value.getMembers().add(member);
+            return value;
+        });
+    }
+
+    @Override
+    public Group removeMember(String name, String member) {
+        return groupMap.computeIfPresent(name, (key, value) -> {
+//            value.getMembers().remove(member);
+            return value;
+        });
+    }
+
+    @Override
+    public Group removeGroup(String name) {
+        return groupMap.remove(name);
+    }
+
+    @Override
+    public Set<String> getMembers(String name) {
+//        return groupMap.getOrDefault(name, Group.EMPTY_GROUP).getMembers();
+        return null;
+    }
+
+    @Override
+    public List<Channel> getMembersChannel(String name) {
+        return getMembers(name).stream()
+                .map(member -> SessionFactory.getSession().getChannel(member))
+                .filter(Objects::nonNull)
+                .collect(Collectors.toList());
+    }
+}