1 package ch.qos.logback.classic.joran.sanity;
2
3 import ch.qos.logback.classic.model.LoggerModel;
4 import ch.qos.logback.classic.model.RootLoggerModel;
5 import ch.qos.logback.core.joran.sanity.Pair;
6 import ch.qos.logback.core.joran.sanity.SanityChecker;
7 import ch.qos.logback.core.model.AppenderModel;
8 import ch.qos.logback.core.model.Model;
9 import ch.qos.logback.core.model.conditional.IfModel;
10 import ch.qos.logback.core.spi.ContextAwareBase;
11
12 import java.util.ArrayList;
13 import java.util.List;
14
15 import static ch.qos.logback.core.CoreConstants.CODES_URL;
16
17 public class IfNestedWithinSecondPhaseElementSC extends ContextAwareBase implements SanityChecker {
18
19 static final public String NESTED_IF_WARNING_URL = CODES_URL+ "#nested_if_element";
20
21 @Override
22 public void check(Model model) {
23 if (model == null)
24 return;
25
26 List<Model> secondPhaseModels = new ArrayList<>();
27 deepFindAllModelsOfType(AppenderModel.class, secondPhaseModels, model);
28 deepFindAllModelsOfType(LoggerModel.class, secondPhaseModels, model);
29 deepFindAllModelsOfType(RootLoggerModel.class, secondPhaseModels, model);
30
31 List<Pair<Model, Model>> nestedPairs = deepFindNestedSubModelsOfType(IfModel.class, secondPhaseModels);
32
33 if (nestedPairs.isEmpty())
34 return;
35
36 addWarn("<if> elements cannot be nested within an <appender>, <logger> or <root> element");
37 addWarn("See also " + NESTED_IF_WARNING_URL);
38 for (Pair<Model, Model> pair : nestedPairs) {
39 Model p = pair.first;
40 int pLine = p.getLineNumber();
41 Model s = pair.second;
42 int sLine = s.getLineNumber();
43 addWarn("Element <"+p.getTag()+"> at line " + pLine + " contains a nested <"+s.getTag()+"> element at line " +sLine);
44 }
45 }
46
47 @Override
48 public String toString() {
49 return "IfNestedWithinSecondPhaseElementSC";
50 }
51 }