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  1. import java.util.HashMap;
  2. import java.util.Map;
  3.  
  4. public class Main {
  5.     public static final class ApplicationContext {
  6.         private final String app;
  7.         private final String ctx;
  8.  
  9.         public ApplicationContext(final String app, final String ctx) {
  10.             this.app = app;
  11.             this.ctx = ctx;
  12.         }
  13.  
  14.         @Override
  15.         public String toString() {
  16.             return "ApplicationContext[" + app + "/" + ctx + "]";
  17.         }
  18.     }
  19.  
  20.     private static ApplicationContext ac(final String app, final String ctx) {
  21.         return new ApplicationContext(app, ctx);
  22.     }
  23.  
  24.     private static ApplicationContext getApplicationContext(final String url,
  25.             final Map<String, ApplicationContext> urlMap) {
  26.         String specificUrl = url;
  27.         ApplicationContext result = null;
  28.         while (specificUrl != null && result == null) {
  29.             result = urlMap.get(specificUrl);
  30.             specificUrl = shortenUrl(specificUrl);
  31.         }
  32.  
  33.         return result;
  34.     }
  35.  
  36.     public static void main(final String[] args) throws Exception {
  37.         final Map<String, ApplicationContext> urlMap = new HashMap<String, ApplicationContext>();
  38.         urlMap.put("/application1", ac("Application1", "Root"));
  39.         urlMap.put("/application1/subcontext1", ac("Application1", "SubContext1"));
  40.         urlMap.put("/application1/subcontext2", ac("Application1", "SubContext2"));
  41.         urlMap.put("/application1/subcontext2/subcontext3", ac("Application1", "SubContext3"));
  42.         urlMap.put("/application2", ac("Application2", null));
  43.  
  44.         System.out.println(getApplicationContext("/application1/", urlMap));
  45.         System.out.println(getApplicationContext("/application1/abc", urlMap));
  46.         System.out.println(getApplicationContext("/application1/subcontext2/abc", urlMap));
  47.     }
  48.  
  49.     private static String shortenUrl(final String url) {
  50.         final int index = url.lastIndexOf('/');
  51.         if (index > 0) {
  52.             return url.substring(0, index);
  53.         }
  54.         else {
  55.             return null;
  56.         }
  57.     }
  58. }
  59.  
Success #stdin #stdout 0.07s 215488KB
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ApplicationContext[Application1/Root]
ApplicationContext[Application1/Root]
ApplicationContext[Application1/SubContext2]
https://ideone.com/AbshZy
language:
Java (12.0.1)
created:
11 years ago
visibility:
public

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