SourceOnly.java

/*
 * Copyright (c) 2002, 2016, 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
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 * questions.
 */

package p;

import java.util.Arrays;
import java.util.Collections;
import java.util.Locale;
import java.util.Set;

import javax.lang.model.SourceVersion;
import javax.lang.model.element.TypeElement;
import javax.lang.model.util.ElementFilter;

import jdk.javadoc.doclet.Doclet;
import jdk.javadoc.doclet.DocletEnvironment;
import jdk.javadoc.doclet.Reporter;

/** Test that when running javadoc on a package, we only get
 *  documentation for those classes for which source was provided.
 */
public class SourceOnly implements Doclet {
    NonSource dependency; // force a compilation error if not on classpath.

    @Override
    public boolean run(DocletEnvironment root) {
        Set<TypeElement> classes = ElementFilter.typesIn(root.getIncludedElements());
        if (classes.size() != 1)
            throw new Error("wrong set of classes documented: " +
                    Arrays.asList(classes));
        return true;
    }

    @Override
    public String getName() {
        return "Test";
    }

    @Override
    public Set<Option> getSupportedOptions() {
        return Collections.emptySet();
    }

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

    @Override
    public void init(Locale locale, Reporter reporter) {
        // do nothing
    }
}