/**
* NOTICE: THE FILE HAS BEEN MODIFIED TO SUIT THE NEEDS OF THE PROJECT.
*
* original source code is from: http://www.sixlegs.com/blog/java/exclude-javadoc-tag.html
*/
package org.robobinding.doctaglet;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.util.ArrayList;
import java.util.List;
import com.sun.javadoc.Doc;
import com.sun.javadoc.DocErrorReporter;
import com.sun.javadoc.LanguageVersion;
import com.sun.javadoc.ProgramElementDoc;
import com.sun.javadoc.RootDoc;
import com.sun.tools.doclets.standard.Standard;
import com.sun.tools.javadoc.Main;
/**
* filters out classes with @hide in the javadoc</li>
*/
public class Doclet {
private static final String TAG_HIDE = "@hide";
public static void main(String[] args) {
String name = Doclet.class.getName();
List<String> argList = new ArrayList<String>();
argList.add("-taglet");
argList.add(EventTaglet.class.getName());
argList.add("-taglet");
argList.add(PropTaglet.class.getName());
for(String arg : args) {
argList.add(arg);
System.out.println("Doclet error:" + arg);
}
Main.execute(name, name, args);
}
public static boolean validOptions(String[][] options, DocErrorReporter reporter) throws java.io.IOException {
return Standard.validOptions(options, reporter);
}
public static LanguageVersion languageVersion() {
return Standard.languageVersion();
}
public static int optionLength(String option) {
return Standard.optionLength(option);
}
public static boolean start(RootDoc root) throws java.io.IOException {
return Standard.start((RootDoc) process(root, RootDoc.class));
}
private static boolean exclude(Doc doc) {
if (doc.tags(TAG_HIDE).length > 0) {
return true;
} else if ((doc instanceof ProgramElementDoc)
&& (((ProgramElementDoc) doc).containingPackage().tags(TAG_HIDE).length > 0)) {
return true;
} else {
return false;
}
}
@SuppressWarnings({ "rawtypes", "unchecked" })
private static Object process(Object obj, Class expect) {
if (obj == null)
return null;
Class cls = obj.getClass();
if (cls.getName().startsWith("com.sun.")) {
return Proxy.newProxyInstance(cls.getClassLoader(), cls.getInterfaces(), new ExcludeHandler(obj));
} else if (obj instanceof Object[]) {
Class componentType = expect.getComponentType();
Object[] array = (Object[]) obj;
List list = new ArrayList(array.length);
for (int i = 0; i < array.length; i++) {
Object entry = array[i];
if ((entry instanceof Doc) && exclude((Doc) entry))
continue;
list.add(process(entry, componentType));
}
return list.toArray((Object[]) Array.newInstance(componentType, list.size()));
} else {
return obj;
}
}
private static class ExcludeHandler implements InvocationHandler {
private Object target;
public ExcludeHandler(Object target) {
this.target = target;
}
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
if (args != null) {
String methodName = method.getName();
if (methodName.equals("compareTo") || methodName.equals("equals") || methodName.equals("overrides")
|| methodName.equals("subclassOf")) {
args[0] = unwrap(args[0]);
}
}
try {
return process(method.invoke(target, args), method.getReturnType());
} catch (InvocationTargetException e) {
throw e.getTargetException();
}
}
private Object unwrap(Object proxy) {
if (proxy instanceof Proxy)
return ((ExcludeHandler) Proxy.getInvocationHandler(proxy)).target;
return proxy;
}
}
}