testdeprecation.java

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/*
 * Copyright 2006 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */

/*
 * @test
 * @bug 6392818
 * @summary Tests Elements.isDeprecated(Element)
 * @author  Joseph D. Darcy
 * @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.
 */
@SupportedAnnotationTypes("*")
public class TestDeprecation extends AbstractProcessor {

    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 ElementScanner6<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;
	}
    }

    @Override
    public SourceVersion getSupportedSourceVersion() {
	return SourceVersion.latest();
    }
}