nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/JsonGroupStore.java

   1 package org.asamk.signal;
   2
   3 import com.fasterxml.jackson.annotation.JsonProperty;
   4 import com.fasterxml.jackson.core.JsonGenerator;
   5 import com.fasterxml.jackson.core.JsonParser;
   6 import com.fasterxml.jackson.databind.*;
   7 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
   8 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
   9
  10 import java.io.IOException;
  11 import java.util.ArrayList;
  12 import java.util.HashMap;
  13 import java.util.List;
  14 import java.util.Map;
  15
  16 public class JsonGroupStore {
  17     @JsonProperty("groups")
  18     @JsonSerialize(using = JsonGroupStore.MapToListSerializer.class)
  19     @JsonDeserialize(using = JsonGroupStore.GroupsDeserializer.class)
  20     private Map<String, GroupInfo> groups = new HashMap<>();
  21
  22     private static final ObjectMapper jsonProcessot = new ObjectMapper();
  23
  24     void updateGroup(GroupInfo group) {
  25         groups.put(Base64.encodeBytes(group.groupId), group);
  26     }
  27
  28     GroupInfo getGroup(byte[] groupId) {
  29         GroupInfo g = groups.get(Base64.encodeBytes(groupId));
  30         return g;
  31     }
  32
  33     List<GroupInfo> getGroups() {
  34         return new ArrayList<>(groups.values());
  35     }
  36
  37     public static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {
  38         @Override
  39         public void serialize(final Map<?, ?> value, final JsonGenerator jgen, final SerializerProvider provider) throws IOException {
  40             jgen.writeObject(value.values());
  41         }
  42     }
  43
  44     public static class GroupsDeserializer extends JsonDeserializer<Map<String, GroupInfo>> {
  45         @Override
  46         public Map<String, GroupInfo> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
  47             Map<String, GroupInfo> groups = new HashMap<>();
  48             JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  49             for (JsonNode n : node) {
  50                 GroupInfo g = jsonProcessot.treeToValue(n, GroupInfo.class);
  51                 groups.put(Base64.encodeBytes(g.groupId), g);
  52             }
  53
  54             return groups;
  55         }
  56     }
  57 }