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.slf4j.Logger;
   9 import org.slf4j.LoggerFactory;
  10
  11 import java.net.URLDecoder;
  12 import java.nio.charset.StandardCharsets;
  13 import java.util.Arrays;
  14 import java.util.HashMap;
  15 import java.util.List;
  16 import java.util.Locale;
  17 import java.util.Map;
  18 import java.util.Optional;
  19 import java.util.stream.Collectors;
  20
  21 public class Util {
  22
  23     private static final Logger logger = LoggerFactory.getLogger(Util.class);
  24
  25     private Util() {
  26     }
  27
  28     public static String getStringIfNotBlank(Optional<String> value) {
  29         var string = value.orElse(null);
  30         if (string == null || string.isBlank()) {
  31             return null;
  32         }
  33         return string;
  34     }
  35
  36     public static String dashSeparatedToCamelCaseString(String s) {
  37         var parts = s.split("-");
  38         return toCamelCaseString(Arrays.asList(parts));
  39     }
  40
  41     private static String toCamelCaseString(List<String> strings) {
  42         if (strings.isEmpty()) {
  43             return "";
  44         }
  45         return strings.getFirst() + strings.stream()
  46                 .skip(1)
  47                 .filter(s -> !s.isEmpty())
  48                 .map(s -> Character.toUpperCase(s.charAt(0)) + s.substring(1).toLowerCase(Locale.ROOT))
  49                 .collect(Collectors.joining());
  50     }
  51
  52     public static String formatSafetyNumber(String digits) {
  53         if (digits == null) {
  54             return null;
  55         }
  56
  57         final var partCount = 12;
  58         var partSize = digits.length() / partCount;
  59         var f = new StringBuilder(digits.length() + partCount);
  60         for (var i = 0; i < partCount; i++) {
  61             f.append(digits, i * partSize, (i * partSize) + partSize);
  62             if (i != partCount - 1) {
  63                 f.append(" ");
  64             }
  65         }
  66         return f.toString();
  67     }
  68
  69     public static ObjectMapper createJsonObjectMapper() {
  70         var objectMapper = new ObjectMapper();
  71         objectMapper.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.PUBLIC_ONLY);
  72         objectMapper.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
  73         return objectMapper;
  74     }
  75
  76     public static Map<String, String> getQueryMap(String query) {
  77         var params = query.split("&");
  78         var map = new HashMap<String, String>();
  79         for (var param : params) {
  80             final var paramParts = param.split("=");
  81             var name = URLDecoder.decode(paramParts[0], StandardCharsets.UTF_8);
  82             var value = paramParts.length == 1 ? null : URLDecoder.decode(paramParts[1], StandardCharsets.UTF_8);
  83             map.put(name, value);
  84         }
  85         return map;
  86     }
  87 }