11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package pkg;
  25 
  26 import java.util.List;
  27 import java.util.Locale;
  28 import java.util.Set;
  29 import javax.lang.model.SourceVersion;
  30 import javax.lang.model.element.Element;
  31 import javax.lang.model.util.ElementScanner9;
  32 import javax.tools.Diagnostic;
  33 
  34 import jdk.javadoc.doclet.Doclet;
  35 import jdk.javadoc.doclet.DocletEnvironment;
  36 import jdk.javadoc.doclet.Reporter;
  37 
  38 public class MyDoclet implements Doclet {
  39     private static final boolean OK = true;
  40     private boolean verbose;
  41     private Reporter reporter;
  42 
  43     Set<Option> options = Set.of(
  44             new Option("--alpha -a", false, "an example no-arg option") {
  45                 @Override
  46                 public boolean process(String option, List<String> arguments) {
  47                     System.out.println("received option " + option + " " + arguments);
  48                     return OK;
  49                 }
  50             },
  51             new Option("--beta -b", true, "an example 1-arg option") {

  77     @Override
  78     public Set<? extends Option> getSupportedOptions() {
  79         return options;
  80     }
  81 
  82     @Override
  83     public SourceVersion getSupportedSourceVersion() {
  84         return SourceVersion.latest();
  85     }
  86 
  87     @Override
  88     public boolean run(DocletEnvironment environment) {
  89         MyScanner myScanner = new MyScanner();
  90         for (Element e : environment.getSpecifiedElements()) {
  91             myScanner.scan(e, 0);
  92         }
  93 
  94         return OK;
  95     }
  96 
  97     class MyScanner extends ElementScanner9<Void, Integer> {
  98         @Override
  99         public Void scan(Element e, Integer depth) {
 100             String msg = e.getKind() + " " + e;
 101             reporter.print(Diagnostic.Kind.NOTE, e, msg);
 102             return super.scan(e, depth + 1);
 103         }
 104     }
 105 
 106 
 107     abstract class Option implements Doclet.Option {
 108         final List<String> names;
 109         final boolean hasArg;
 110         final String description;
 111 
 112         Option(String names, boolean hasArg, String description) {
 113             this.names = List.of(names.split("\\s+"));
 114             this.hasArg = hasArg;
 115             this.description = description;
 116         }
 117 

  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package pkg;
  25 
  26 import java.util.List;
  27 import java.util.Locale;
  28 import java.util.Set;
  29 import javax.lang.model.SourceVersion;
  30 import javax.lang.model.element.Element;
  31 import javax.lang.model.util.ElementScanner14;
  32 import javax.tools.Diagnostic;
  33 
  34 import jdk.javadoc.doclet.Doclet;
  35 import jdk.javadoc.doclet.DocletEnvironment;
  36 import jdk.javadoc.doclet.Reporter;
  37 
  38 public class MyDoclet implements Doclet {
  39     private static final boolean OK = true;
  40     private boolean verbose;
  41     private Reporter reporter;
  42 
  43     Set<Option> options = Set.of(
  44             new Option("--alpha -a", false, "an example no-arg option") {
  45                 @Override
  46                 public boolean process(String option, List<String> arguments) {
  47                     System.out.println("received option " + option + " " + arguments);
  48                     return OK;
  49                 }
  50             },
  51             new Option("--beta -b", true, "an example 1-arg option") {

  77     @Override
  78     public Set<? extends Option> getSupportedOptions() {
  79         return options;
  80     }
  81 
  82     @Override
  83     public SourceVersion getSupportedSourceVersion() {
  84         return SourceVersion.latest();
  85     }
  86 
  87     @Override
  88     public boolean run(DocletEnvironment environment) {
  89         MyScanner myScanner = new MyScanner();
  90         for (Element e : environment.getSpecifiedElements()) {
  91             myScanner.scan(e, 0);
  92         }
  93 
  94         return OK;
  95     }
  96 
  97     class MyScanner extends ElementScanner14<Void, Integer> {
  98         @Override
  99         public Void scan(Element e, Integer depth) {
 100             String msg = e.getKind() + " " + e;
 101             reporter.print(Diagnostic.Kind.NOTE, e, msg);
 102             return super.scan(e, depth + 1);
 103         }
 104     }
 105 
 106 
 107     abstract class Option implements Doclet.Option {
 108         final List<String> names;
 109         final boolean hasArg;
 110         final String description;
 111 
 112         Option(String names, boolean hasArg, String description) {
 113             this.names = List.of(names.split("\\s+"));
 114             this.hasArg = hasArg;
 115             this.description = description;
 116         }
 117