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 *

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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

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 * 2 along with this work; if not, write to the Free Software Foundation,

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 *

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/*

 * @test

 * @bug 6392818

 * @summary Tests Elements.isDeprecated(Element)

 * @author  Joseph D. Darcy

 * @library /tools/javac/lib

 * @build JavacTestingAbstractProcessor

 * @compile TestDeprecation.java

 * @compile -processor TestDeprecation -proc:only Dep1.java

 * @compile Dep1.java

 * @compile -processor TestDeprecation -proc:only Dep1 TestDeprecation.java

 */

import java.util.Set;

import java.util.HashSet;

import java.util.Arrays;

import javax.annotation.processing.*;

import javax.lang.model.SourceVersion;

import javax.lang.model.element.*;

import javax.lang.model.util.*;

import static javax.tools.Diagnostic.Kind.*;

import java.io.Writer;

/**

 * This processor verifies that the information returned by

 * getElementsAnnotatedWith is consistent with the expected results

 * stored in an AnnotatedElementInfo annotation.

 */

public class TestDeprecation extends JavacTestingAbstractProcessor {

    public boolean process(Set<? extends TypeElement> annotations,

                           RoundEnvironment roundEnv) {

        boolean failure = false;

        if (!roundEnv.processingOver()) {

            DeprecationChecker deprecationChecker = new DeprecationChecker();

            for(Element element: roundEnv.getRootElements() ) {

                System.out.println("\nRoot Element: " + element.getSimpleName());

                failure = deprecationChecker.scan(element);

            }

            if (failure)

                processingEnv.getMessager().printMessage(ERROR, "Deprecation mismatch found!");

        }

        return true;

    }

    private class DeprecationChecker extends ElementScanner<Boolean,Void> {

        private Elements elementUtils;

        private boolean failure;

        DeprecationChecker() {

            super(false);

            elementUtils = processingEnv.getElementUtils();

            failure = false;

        }

        @Override

        public Boolean scan(Element e, Void p) {

            boolean expectedDeprecation = false;

            ExpectedDeprecation tmp = e.getAnnotation(ExpectedDeprecation.class);

            if (tmp != null)

                expectedDeprecation = tmp.value();

            boolean actualDeprecation = elementUtils.isDeprecated(e);

            System.out.printf("\tVisiting %s\t%s%n", e.getKind(), e.getSimpleName());

            if (expectedDeprecation != actualDeprecation) {

                failure = true;

                java.io.StringWriter w = new java.io.StringWriter();

                elementUtils.printElements(w, e);

                System.out.printf("For the deprecation of %n\t%s\t, expected %b, got %b.%n",

                                  w.getBuffer().toString(),

                                  expectedDeprecation, actualDeprecation);

            }

            super.scan(e, p);

            return failure;

        }

    }

}