git.gumartinm.name Git - JavaForFun/blob

   1 package de.example.custom.java.checks;
   2
   3 import java.util.List;
   4
   5 import org.sonar.api.utils.log.Logger;
   6 import org.sonar.api.utils.log.Loggers;
   7 import org.sonar.check.Rule;
   8 import org.sonar.plugins.java.api.IssuableSubscriptionVisitor;
   9 import org.sonar.plugins.java.api.semantic.Symbol.MethodSymbol;
  10 import org.sonar.plugins.java.api.semantic.Type;
  11 import org.sonar.plugins.java.api.tree.MethodTree;
  12 import org.sonar.plugins.java.api.tree.Tree;
  13 import org.sonar.plugins.java.api.tree.Tree.Kind;
  14
  15 import com.google.common.collect.ImmutableList;
  16
  17 @Rule(key = "GUJ0001")
  18 public class ParameterCheck extends IssuableSubscriptionVisitor {
  19         private static final Logger LOG = Loggers.get(ParameterCheck.class);
  20
  21
  22         @Override
  23         public List<Kind> nodesToVisit() {
  24                 return ImmutableList.of(Kind.METHOD);
  25         }
  26
  27         @Override
  28         public void visitNode(Tree tree) {
  29                 LOG.info("Visiting Node");
  30
  31                 MethodTree method = (MethodTree) tree;
  32
  33                 if (method.parameters().size() == 1) {
  34                         MethodSymbol symbol = method.symbol();
  35                         Type firstParameterType = symbol.parameterTypes().get(0);
  36                         Type returnType = symbol.returnType().type();
  37                         if(returnType.is(firstParameterType.fullyQualifiedName())) {
  38                                 reportIssue(method.simpleName(), "Never do that!");
  39                         }
  40                 }
  41
  42         }
  43 }