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

   1 package org.asamk.signal.storage.contacts;
   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 JsonContactsStore {
  17     @JsonProperty("contacts")
  18     @JsonSerialize(using = JsonContactsStore.MapToListSerializer.class)
  19     @JsonDeserialize(using = ContactsDeserializer.class)
  20     private Map<String, ContactInfo> contacts = new HashMap<>();
  21
  22     private static final ObjectMapper jsonProcessor = new ObjectMapper();
  23
  24     public void updateContact(ContactInfo contact) {
  25         contacts.put(contact.number, contact);
  26     }
  27
  28     public ContactInfo getContact(String number) {
  29         return contacts.get(number);
  30     }
  31
  32     public List<ContactInfo> getContacts() {
  33         return new ArrayList<>(contacts.values());
  34     }
  35
  36     /**
  37      * Remove all contacts from the store
  38      */
  39     public void clear() {
  40         contacts.clear();
  41     }
  42
  43     public static class MapToListSerializer extends JsonSerializer<Map<?, ?>> {
  44         @Override
  45         public void serialize(final Map<?, ?> value, final JsonGenerator jgen, final SerializerProvider provider) throws IOException {
  46             jgen.writeObject(value.values());
  47         }
  48     }
  49
  50     public static class ContactsDeserializer extends JsonDeserializer<Map<String, ContactInfo>> {
  51         @Override
  52         public Map<String, ContactInfo> deserialize(JsonParser jsonParser, DeserializationContext deserializationContext) throws IOException {
  53             Map<String, ContactInfo> contacts = new HashMap<>();
  54             JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  55             for (JsonNode n : node) {
  56                 ContactInfo c = jsonProcessor.treeToValue(n, ContactInfo.class);
  57                 contacts.put(c.number, c);
  58             }
  59
  60             return contacts;
  61         }
  62     }
  63 }