public TreeVisitor getVisitor()

in camel-upgrade-recipes/src/main/java/org/apache/camel/upgrade/camel41/YamlDslRecipe.java [77:123]
33 lines of code
13 McCabe index (conditional complexity)

    public TreeVisitor<?, ExecutionContext> getVisitor() {

        return new AbstractCamelYamlVisitor() {

            @Override
            protected void clearLocalCache() {
                //nothing to do
            }

            @Override
            public Yaml.Mapping.Entry doVisitMappingEntry(Yaml.Mapping.Entry entry, ExecutionContext ctx) {
                Yaml.Mapping.Entry e = super.doVisitMappingEntry(entry, ctx);

                //getCursor().getParent() is mapping with 4 entries -> I can check the siblings
                //parent(4) is beans
                Cursor parent4 = getCursor().getParent(4);
                //check that this mapping entry is currently under "beans" sequence
                //parent(2) has to be mapping (represents the bean)
                if (parent4 != null && parent4.getParent() != null && MATCHER_WITHOUT_ROUTE.matches(parent4)
                        && getCursor().getParent().getValue() instanceof Yaml.Mapping) {
                    //get entries
                    Yaml.Mapping m = getCursor().getParent().getValue();
                    List<Yaml.Mapping.Entry> entries = m.getEntries();
                    Optional<Yaml.Mapping.Entry> typeEntry
                            = entries.stream().filter(me -> "type".equals(me.getKey().getValue())).findAny();
                    Optional<Yaml.Mapping.Entry> beanTypeEntry
                            = entries.stream().filter(me -> "beanType".equals(me.getKey().getValue())).findAny();

                    if (typeEntry.isPresent() && typeEntry.get().getValue() instanceof Yaml.Scalar
                            && !((Yaml.Scalar) typeEntry.get().getValue()).getValue().isEmpty()
                            && beanTypeEntry.isPresent() && beanTypeEntry.get().getValue() instanceof Yaml.Scalar
                            && !((Yaml.Scalar) beanTypeEntry.get().getValue()).getValue().isEmpty()) {

                        //modify the current entry
                        if ("type".equals(e.getKey().getValue())) {
                            return e.withKey(((Yaml.Scalar) entry.getKey().copyPaste()).withValue("scriptLanguage"));
                        }
                        if ("beanType".equals(e.getKey().getValue())) {
                            return e.withKey(((Yaml.Scalar) entry.getKey().copyPaste()).withValue("type"));
                        }
                    }
                }

                return e;
            }
        };
    }