nmode's Git Repositories - signal-cli/blob - src/main/java/org/asamk/signal/storage/threads/JsonThreadStore.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.*;
   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 JsonThreadStore {
  17     @JsonProperty("threads")
  18     @JsonSerialize(using = JsonThreadStore.MapToListSerializer.class)
  19     @JsonDeserialize(using = ThreadsDeserializer.class)
  20     private Map<String, ThreadInfo> threads = new HashMap<>();
  21
  22     private static final ObjectMapper jsonProcessor = new ObjectMapper();
  23
  24     public void updateThread(ThreadInfo thread) {
  25         threads.put(thread.id, thread);
  26     }
  27
  28     public ThreadInfo getThread(String id) {
  29         return threads.get(id);
  30     }
  31
  32     public List<ThreadInfo> getThreads() {
  33         return new ArrayList<>(threads.values());
  34     }
  35
  36     public static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {
  37         @Override
  38         public void serialize(final Map<?, ?> value, final JsonGenerator jgen, final SerializerProvider provider) throws IOException {
  39             jgen.writeObject(value.values());
  40         }
  41     }
  42
  43     public static class ThreadsDeserializer extends JsonDeserializer<Map<String, ThreadInfo>> {
  44         @Override
  45         public Map<String, ThreadInfo> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
  46             Map<String, ThreadInfo> threads = new HashMap<>();
  47             JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  48             for (JsonNode n : node) {
  49                 ThreadInfo t = jsonProcessor.treeToValue(n, ThreadInfo.class);
  50                 threads.put(t.id, t);
  51             }
  52
  53             return threads;
  54         }
  55     }
  56 }