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

   1 package org.asamk.signal.util;
   2
   3 import com.fasterxml.jackson.annotation.JsonAutoDetect;
   4 import com.fasterxml.jackson.annotation.PropertyAccessor;
   5 import com.fasterxml.jackson.core.JsonGenerator;
   6 import com.fasterxml.jackson.databind.ObjectMapper;
   7
   8 import org.asamk.signal.manager.groups.GroupId;
   9 import org.asamk.signal.manager.groups.GroupIdFormatException;
  10 import org.whispersystems.libsignal.util.guava.Optional;
  11 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  12
  13 import java.util.Arrays;
  14 import java.util.List;
  15 import java.util.Locale;
  16 import java.util.stream.Collectors;
  17
  18 public class Util {
  19
  20     private Util() {
  21     }
  22
  23     public static String getStringIfNotBlank(Optional<String> value) {
  24         var string = value.orNull();
  25         if (string == null || string.isBlank()) {
  26             return null;
  27         }
  28         return string;
  29     }
  30
  31     public static String dashSeparatedToCamelCaseString(String s) {
  32         var parts = s.split("-");
  33         return toCamelCaseString(Arrays.asList(parts));
  34     }
  35
  36     private static String toCamelCaseString(List<String> strings) {
  37         if (strings.size() == 0) {
  38             return "";
  39         }
  40         return strings.get(0) + strings.stream()
  41                 .skip(1)
  42                 .filter(s -> s.length() > 0)
  43                 .map(s -> Character.toUpperCase(s.charAt(0)) + s.substring(1).toLowerCase(Locale.ROOT))
  44                 .collect(Collectors.joining());
  45     }
  46
  47     public static String formatSafetyNumber(String digits) {
  48         final var partCount = 12;
  49         var partSize = digits.length() / partCount;
  50         var f = new StringBuilder(digits.length() + partCount);
  51         for (var i = 0; i < partCount; i++) {
  52             f.append(digits, i * partSize, (i * partSize) + partSize).append(" ");
  53         }
  54         return f.toString();
  55     }
  56
  57     public static GroupId decodeGroupId(String groupId) throws GroupIdFormatException {
  58         return GroupId.fromBase64(groupId);
  59     }
  60
  61     public static String getLegacyIdentifier(final SignalServiceAddress address) {
  62         return address.getNumber().or(() -> address.getUuid().get().toString());
  63     }
  64
  65     public static ObjectMapper createJsonObjectMapper() {
  66         var objectMapper = new ObjectMapper();
  67         objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.PUBLIC_ONLY);
  68         objectMapper.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
  69         return objectMapper;
  70     }
  71 }