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.whispersystems.libsignal.util.guava.Optional;
   9 import org.whispersystems.signalservice.api.push.SignalServiceAddress;
  10
  11 import java.util.Arrays;
  12 import java.util.List;
  13 import java.util.Locale;
  14 import java.util.stream.Collectors;
  15
  16 public class Util {
  17
  18     private Util() {
  19     }
  20
  21     public static String getStringIfNotBlank(Optional<String> value) {
  22         var string = value.orNull();
  23         if (string == null || string.isBlank()) {
  24             return null;
  25         }
  26         return string;
  27     }
  28
  29     public static String dashSeparatedToCamelCaseString(String s) {
  30         var parts = s.split("-");
  31         return toCamelCaseString(Arrays.asList(parts));
  32     }
  33
  34     private static String toCamelCaseString(List<String> strings) {
  35         if (strings.size() == 0) {
  36             return "";
  37         }
  38         return strings.get(0) + strings.stream()
  39                 .skip(1)
  40                 .filter(s -> s.length() > 0)
  41                 .map(s -> Character.toUpperCase(s.charAt(0)) + s.substring(1).toLowerCase(Locale.ROOT))
  42                 .collect(Collectors.joining());
  43     }
  44
  45     public static String formatSafetyNumber(String digits) {
  46         if (digits == null) {
  47             return null;
  48         }
  49
  50         final var partCount = 12;
  51         var partSize = digits.length() / partCount;
  52         var f = new StringBuilder(digits.length() + partCount);
  53         for (var i = 0; i < partCount; i++) {
  54             f.append(digits, i * partSize, (i * partSize) + partSize);
  55             if (i != partCount - 1) {
  56                 f.append(" ");
  57             }
  58         }
  59         return f.toString();
  60     }
  61
  62     public static String getLegacyIdentifier(final SignalServiceAddress address) {
  63         return address.getNumber().or(() -> address.getUuid().toString());
  64     }
  65
  66     public static ObjectMapper createJsonObjectMapper() {
  67         var objectMapper = new ObjectMapper();
  68         objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.PUBLIC_ONLY);
  69         objectMapper.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
  70         return objectMapper;
  71     }
  72 }