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
  18     private static final ObjectMapper jsonProcessor = new ObjectMapper();
  19
  20     @JsonProperty("threads")
  21     @JsonSerialize(using = JsonThreadStore.MapToListSerializer.class)
  22     @JsonDeserialize(using = ThreadsDeserializer.class)
  23     private Map<String, ThreadInfo> threads = new HashMap<>();
  24
  25     public void updateThread(ThreadInfo thread) {
  26         threads.put(thread.id, thread);
  27     }
  28
  29     public ThreadInfo getThread(String id) {
  30         return threads.get(id);
  31     }
  32
  33     public List<ThreadInfo> getThreads() {
  34         return new ArrayList<>(threads.values());
  35     }
  36
  37     private static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {
  38
  39         @Override
  40         public void serialize(final Map<?, ?> value, final JsonGenerator jgen, final SerializerProvider provider) throws IOException {
  41             jgen.writeObject(value.values());
  42         }
  43     }
  44
  45     private static class ThreadsDeserializer extends JsonDeserializer<Map<String, ThreadInfo>> {
  46
  47         @Override
  48         public Map<String, ThreadInfo> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
  49             Map<String, ThreadInfo> threads = new HashMap<>();
  50             JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  51             for (JsonNode n : node) {
  52                 ThreadInfo t = jsonProcessor.treeToValue(n, ThreadInfo.class);
  53                 threads.put(t.id, t);
  54             }
  55
  56             return threads;
  57         }
  58     }
  59 }