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/*
* Copyright (c) 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
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* NOTE: this class is an almost a replica of the example used in the
* package-info.java.
*/
import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.List;
import java.util.Locale;
import java.util.Set;
import javax.lang.model.SourceVersion;
import javax.lang.model.element.Element;
import javax.lang.model.element.TypeElement;
import javax.lang.model.util.ElementFilter;
import javax.tools.Diagnostic.Kind;
import com.sun.source.doctree.DocCommentTree;
import com.sun.source.util.DocTrees;
import jdk.javadoc.doclet.*;
/**
* An Example class implementing the Doclet.
*/
public class Example implements Doclet {
Reporter reporter;
@Override
public void init(Locale locale, Reporter reporter) {
reporter.print(Kind.NOTE, "Doclet using locale: " + locale);
this.reporter = reporter;
}
/**
* Prints an element.
*
* @param trees the utility class
* @param e the element to be printed
*/
public void printElement(DocTrees trees, Element e) {
DocCommentTree docCommentTree = trees.getDocCommentTree(e);
if (docCommentTree != null) {
System.out.println("Element (" + e.getKind() + ": "
+ e + ") has the following comments:");
System.out.println("Entire body: " + docCommentTree.getFullBody());
System.out.println("Block tags: " + docCommentTree.getBlockTags());
}
}
@Override
public boolean run(DocletEnvironment docEnv) {
reporter.print(Kind.NOTE, "overviewfile: " + overviewfile);
// get the DocTrees utility class to access DocComments
DocTrees docTrees = docEnv.getDocTrees();
// location of an element in the same directory as overview.html
try {
Element e = ElementFilter.typesIn(docEnv.getSpecifiedElements()).iterator().next();
DocCommentTree docCommentTree
= docTrees.getDocCommentTree(e, overviewfile);
if (docCommentTree != null) {
System.out.println("Overview html: " + docCommentTree.getFullBody());
}
} catch (IOException missing) {
reporter.print(Kind.ERROR, "No overview.html found.");
}
for (TypeElement t : ElementFilter.typesIn(docEnv.getIncludedElements())) {
System.out.println(t.getKind() + ":" + t);
for (Element e : t.getEnclosedElements()) {
printElement(docTrees, e);
}
}
return true;
}
@Override
public String getName() {
return "Example";
}
private String overviewfile;
@Override
public Set<? extends Option> getSupportedOptions() {
Option[] options = {
new Option() {
private final List<String> someOption = Arrays.asList(
"-overviewfile",
"-overview-file",
"--over-view-file"
);
@Override
public int getArgumentCount() {
return 1;
}
@Override
public String getDescription() {
return "an option with aliases";
}
@Override
public Option.Kind getKind() {
return Option.Kind.STANDARD;
}
@Override
public List<String> getNames() {
return someOption;
}
@Override
public String getParameters() {
return "file";
}
@Override
public boolean process(String opt, List<String> arguments) {
overviewfile = arguments.get(0);
return true;
}
}
};
return new HashSet<>(Arrays.asList(options));
}
@Override
public SourceVersion getSupportedSourceVersion() {
// support the latest release
return SourceVersion.latest();
}
}
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