how to read key and value within string containing square brackets using java-CodePudding

Have got followings string reading the docker logs Example: xmen logging; xmenID=642c7ded-2fef-4aa3-ba08-0b6ab7f7a5e0; period=[name:search, actions:[start:0 ms, material requests:0 ms, fulfilled requests:329 ms, sum responses:1 ms, total:330 ms]] And using the regex and have got following string [start:0 ms, material requests:0 ms, fulfilled requests:329 ms, sum responses:1 ms, total:330 ms]

How to fetch the values of starts, material requests to check their values are equal to zero or more using java?

CodePudding user response：

Given that you've already parsed out the values into a String, you can simply split and collect them into a Map<String, String>.

String valueOutOfRegex = "[start:0 ms, material requests:0 ms, fulfilled requests:329 ms, sum responses:1 ms, total:330 ms]"; // Your String that you've parsed
String valueWithRemovedBrackets = valueOutOfRegex.substring(1, valueOutOfRegex.length() - 1); // remove the leading and trailing brackets
Map<String, String> simpleMap = Arrays.stream(valueWithRemovedBrackets.split(",")).collect(Collectors.toMap(s1 -> s1.split(":")[0].trim(), s1 -> s1.split(":")[1]));  // collect into a Map

This will give you a Map<String, String> that looks like this:

{total=330 ms, fulfilled requests=329 ms, material requests=0 ms, start=0 ms, sum responses=1 ms}