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 java.net.URLDecoder;
   9 import java.nio.charset.StandardCharsets;
  10 import java.util.Arrays;
  11 import java.util.HashMap;
  12 import java.util.List;
  13 import java.util.Locale;
  14 import java.util.Map;
  15 import java.util.Optional;
  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.orElse(null);
  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         if (digits == null) {
  49             return null;
  50         }
  51
  52         final var partCount = 12;
  53         var partSize = digits.length() / partCount;
  54         var f = new StringBuilder(digits.length() + partCount);
  55         for (var i = 0; i < partCount; i++) {
  56             f.append(digits, i * partSize, (i * partSize) + partSize);
  57             if (i != partCount - 1) {
  58                 f.append(" ");
  59             }
  60         }
  61         return f.toString();
  62     }
  63
  64     public static ObjectMapper createJsonObjectMapper() {
  65         var objectMapper = new ObjectMapper();
  66         objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.PUBLIC_ONLY);
  67         objectMapper.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
  68         return objectMapper;
  69     }
  70
  71     public static Map<String, String> getQueryMap(String query) {
  72         var params = query.split("&");
  73         var map = new HashMap<String, String>();
  74         for (var param : params) {
  75             final var paramParts = param.split("=");
  76             var name = URLDecoder.decode(paramParts[0], StandardCharsets.UTF_8);
  77             var value = paramParts.length == 1 ? null : URLDecoder.decode(paramParts[1], StandardCharsets.UTF_8);
  78             map.put(name, value);
  79         }
  80         return map;
  81     }
  82
  83 }