Java example source code file (TestElement.java)

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Java - Java tags/keywords

element, executableelement, javactestingabstractprocessor, name, roundenvironment, runtimeexception, testelement, typeelement, unexpected, util

The TestElement.java Java example source code

/*
 * Copyright (c) 2006, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @test
 * @bug 6453386
 * @summary Test basic properties of javax.lang.element.Element
 * @author  Joseph D. Darcy
 * @library /tools/javac/lib
 * @build   JavacTestingAbstractProcessor TestElement
 * @compile -processor TestElement -proc:only TestElement.java
 */

import java.util.Set;
import javax.annotation.processing.*;
import javax.lang.model.SourceVersion;
import static javax.lang.model.SourceVersion.*;
import javax.lang.model.element.*;
import javax.lang.model.util.*;
import static javax.lang.model.util.ElementFilter.*;
import static javax.tools.Diagnostic.Kind.*;
import static javax.tools.StandardLocation.*;

/**
 * Test basic workings of javax.lang.element.Element
 */
public class TestElement extends JavacTestingAbstractProcessor {
    /**
     * For now, just check that constructors have a simple name of
     * "<init>".
     */
    public boolean process(Set<? extends TypeElement> annotations,
                           RoundEnvironment roundEnv) {
        if (!roundEnv.processingOver()) {
            boolean hasRun = false;
            for (Element element : roundEnv.getRootElements()) {
                for (ExecutableElement ctor : constructorsIn(element.getEnclosedElements())) {
                    hasRun = true;
                    Name ctorName = ctor.getSimpleName();
                    if (!ctorName.contentEquals("<init>"))
                        throw new RuntimeException("Unexpected name for constructor " + ctorName);
                }
            }
            if (!hasRun)
                throw new RuntimeException("No constructors!");
        }
        return true;
    }
}