I need to convert a String to List<Map<String, String>>> for pass JUnit Test. I have this:
String userAttributes = "[{name=test, cp=458999, lastname=test2}]";
That i want is in the tests (Mockito) change a call to a server with this values, something like this:
Mockito.when(template.search(Mockito.anyString, new AttributesMapper()).thenReturn(attributes);
I need List<Map<String, String>>> for do this:
user.setUserName(attributes.get("name"));
Try regex or split by special char. First remove parentheses from beginning and end. After that you can split it by , and = to collect strings to map.
String userAttributes = "[{name=test, cp=458999, lastname=test2}]";
List<String> strings = Arrays.asList(userAttributes
.replace("[{","").replace("}]","")
.split(", "));
Map<String, String> collect = strings.stream()
.map(s -> s.split("="))
.collect(Collectors.toMap(s -> s[0], s -> s[1]));
System.out.println(collect.get("name"));
Other approach with Pattern
Map<String, String> collect = Pattern.compile(",")
.splitAsStream(userAttributes
.replace("[{","").replace("}]",""))
.map(s -> s.split("="))
.collect(Collectors.toMap(s -> s[0], s -> s[1]));
Or if you really wants use List<Map<String, String>>>. But after that you can not do this user.setUserName(attributes.get("name"));
List<Map<String, String>> maps = strings.stream()
.map(s -> s.split("="))
.map(s -> Map.of(s[0], s[1]))
.collect(Collectors.toList());
System.out.println(maps);
String userAttributes = "[{name=test, cp=458999, lastname=test2}]";
StringTokenizer stringTokenizer = new StringTokenizer(userAttributes,",");
List<Map<String,String>> list = new ArrayList<>();
while(stringTokenizer.hasMoreElements()){
StringTokenizer stringTokenizer2 = new StringTokenizer((String)stringTokenizer.nextElement(),"=");
while(stringTokenizer2.hasMoreElements()){
Map<String, String> map = new HashMap<>();
map.put( ((String)stringTokenizer2.nextElement()),((String)stringTokenizer2.nextElement()) );
list.add(map);
}
}
System.err.println(list.toString());
[{[{name=test}, { cp=458999}, { lastname=test2}]}]list.stream().forEach(m -> System.out.println(m.entrySet())); you get key "{name" , " cp", " lastname"