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

   1 package org.asamk.signal.storage.threads;
   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.DeserializationContext;
   7 import com.fasterxml.jackson.databind.JsonDeserializer;
   8 import com.fasterxml.jackson.databind.JsonNode;
   9 import com.fasterxml.jackson.databind.JsonSerializer;
  10 import com.fasterxml.jackson.databind.ObjectMapper;
  11 import com.fasterxml.jackson.databind.SerializerProvider;
  12 import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
  13 import com.fasterxml.jackson.databind.annotation.JsonSerialize;
  14
  15 import java.io.IOException;
  16 import java.util.ArrayList;
  17 import java.util.HashMap;
  18 import java.util.List;
  19 import java.util.Map;
  20
  21 public class LegacyJsonThreadStore {
  22
  23     private static final ObjectMapper jsonProcessor = new ObjectMapper();
  24
  25     @JsonProperty("threads")
  26     @JsonSerialize(using = MapToListSerializer.class)
  27     @JsonDeserialize(using = ThreadsDeserializer.class)
  28     private Map<String, ThreadInfo> threads = new HashMap<>();
  29
  30     public List<ThreadInfo> getThreads() {
  31         return new ArrayList<>(threads.values());
  32     }
  33
  34     private static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {
  35
  36         @Override
  37         public void serialize(
  38                 final Map<?, ?> value, final JsonGenerator jgen, final SerializerProvider provider
  39         ) throws IOException {
  40             jgen.writeObject(value.values());
  41         }
  42     }
  43
  44     private static class ThreadsDeserializer extends JsonDeserializer<Map<String, ThreadInfo>> {
  45
  46         @Override
  47         public Map<String, ThreadInfo> deserialize(
  48                 JsonParser jsonParser, DeserializationContext deserializationContext
  49         ) throws IOException {
  50             Map<String, ThreadInfo> threads = new HashMap<>();
  51             JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  52             for (JsonNode n : node) {
  53                 ThreadInfo t = jsonProcessor.treeToValue(n, ThreadInfo.class);
  54                 threads.put(t.id, t);
  55             }
  56
  57             return threads;
  58         }
  59     }
  60 }