Retrieve all users and their roles from LDAP using Java -

i have web application. ldap using apache directive studio. want users , roles in application.

i able particular information using following code.

    import java.util.properties;     import javax.naming.context;     import javax.naming.namingexception;     import javax.naming.directory.attributes;     import javax.naming.directory.dircontext;     import javax.naming.directory.initialdircontext;      public class directorysample {         public directorysample() {          }          public void dolookup() {             properties properties = new properties();             properties.put(context.initial_context_factory,                     "com.sun.jndi.ldap.ldapctxfactory");             properties.put(context.provider_url, "ldap://localhost:10389");             try {                 dircontext context = new initialdircontext(properties);                 attributes attrs = context.getattributes("dc=example,dc=com");                 system.out.println("all data: " + attrs.tostring());             } catch (namingexception e) {                 e.printstacktrace();             }         }         public static void main(string[] args) {             directorysample sample = new directorysample();             sample.dolookup();         }      } 

want show users , roles list, need change query or else in advance.

you can use org.apache.directory.ldap.client.api.ldapconnection easy search.

once bind connection, search on connection. loop through cursor object want. first parameter should match dn of users parent. below example give idea.

entrycursor cursor = connection.search( "ou=users, dc=example, dc=com", "(objectclass=*)", searchscope.onelevel, "*" );      while ( cursor.next() )     {         entry entry = cursor.get();             //play entry     }