/**
* Copyright (c) 2000-present Liferay, Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* This library 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 Lesser General Public License for more
* details.
*/
package com.liferay.portal.javadoc;
import com.liferay.portal.kernel.javadoc.BaseJavadoc;
import com.liferay.portal.kernel.javadoc.EmptyJavadocMethod;
import com.liferay.portal.kernel.javadoc.JavadocClass;
import com.liferay.portal.kernel.javadoc.JavadocManager;
import com.liferay.portal.kernel.javadoc.JavadocMethod;
import com.liferay.portal.kernel.javadoc.JavadocMethodImpl;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.security.pacl.DoPrivileged;
import com.liferay.portal.kernel.util.StreamUtil;
import com.liferay.portal.kernel.util.StringPool;
import com.liferay.portal.kernel.util.StringUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.kernel.xml.Document;
import com.liferay.portal.kernel.xml.Element;
import com.liferay.portal.kernel.xml.UnsecureSAXReaderUtil;
import com.liferay.portal.util.PropsValues;
import java.io.InputStream;
import java.lang.reflect.Method;
import java.net.URL;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* @author Igor Spasic
*/
@DoPrivileged
public class JavadocManagerImpl implements JavadocManager {
@Override
public void load(String servletContextName, ClassLoader classLoader) {
if (!PropsValues.JAVADOC_MANAGER_ENABLED) {
return;
}
if (_log.isInfoEnabled()) {
_log.info("Loading Javadocs for \"" + servletContextName + '\"');
}
Document document = getDocument(classLoader);
if (document == null) {
return;
}
parseDocument(servletContextName, classLoader, document);
if (_log.isInfoEnabled()) {
_log.info("Loaded Javadocs for \"" + servletContextName + '\"');
}
}
@Override
public JavadocClass lookupJavadocClass(Class<?> clazz) {
return _javadocClasses.get(clazz);
}
@Override
public JavadocMethod lookupJavadocMethod(Method method) {
JavadocMethod javadocMethod = _javadocMethods.get(method);
if (javadocMethod != null) {
return javadocMethod;
}
Class<?> clazz = method.getDeclaringClass();
String className = clazz.getName();
if (!className.contains(".service.") ||
!className.endsWith("ServiceUtil")) {
return null;
}
String implClassName = StringUtil.replace(
className, new String[] {".service.", "ServiceUtil"},
new String[] {".service.impl.", "ServiceImpl"});
if (_log.isDebugEnabled()) {
_log.debug(
"Attempting to load method from class " + implClassName +
" instead of " + className);
}
try {
Class<?> implClass = JavadocUtil.loadClass(
clazz.getClassLoader(), implClassName);
Method implMethod = implClass.getMethod(
method.getName(), method.getParameterTypes());
return _javadocMethods.get(implMethod);
}
catch (NoSuchMethodException nsme) {
if (_log.isWarnEnabled()) {
_log.warn(
"Unable to load method " + method.getName() +
" from class " + implClassName);
}
}
catch (Exception e) {
if (_log.isWarnEnabled()) {
_log.warn(
"Unable to load implementation class " + implClassName);
}
}
return null;
}
@Override
public void unload(String servletContextName) {
if (_log.isInfoEnabled()) {
_log.info("Unloading Javadocs for \"" + servletContextName + '\"');
}
unload(servletContextName, _javadocClasses.values());
unload(servletContextName, _javadocMethods.values());
if (_log.isInfoEnabled()) {
_log.info("Unloaded Javadocs for \"" + servletContextName + '\"');
}
}
protected Document getDocument(ClassLoader classLoader) {
InputStream inputStream = null;
try {
URL url = classLoader.getResource("META-INF/javadocs-rt.xml");
if (url == null) {
return null;
}
inputStream = url.openStream();
return UnsecureSAXReaderUtil.read(inputStream, true);
}
catch (Exception e) {
_log.error(e, e);
}
finally {
StreamUtil.cleanUp(inputStream);
}
return null;
}
protected void parseDocument(
String servletContextName, ClassLoader classLoader, Document document) {
Element rootElement = document.getRootElement();
List<Element> javadocElements = rootElement.elements("javadoc");
for (Element javadocElement : javadocElements) {
String type = javadocElement.elementText("type");
Class<?> clazz = null;
try {
clazz = JavadocUtil.loadClass(classLoader, type);
}
catch (ClassNotFoundException cnfe) {
if (_log.isWarnEnabled()) {
_log.warn("Unable to load class " + type);
}
continue;
}
String className = clazz.getName();
if (className.endsWith("LocalServiceImpl")) {
continue;
}
JavadocClass javadocClass = parseJavadocClass(
servletContextName, javadocElement, clazz);
_javadocClasses.put(clazz, javadocClass);
List<Element> methodElements = javadocElement.elements("method");
for (Element methodElement : methodElements) {
try {
JavadocMethod javadocMethod = parseJavadocMethod(
servletContextName, clazz, methodElement);
if (javadocMethod == null) {
continue;
}
_javadocMethods.put(
javadocMethod.getMethod(), javadocMethod);
}
catch (Exception e) {
String methodName = methodElement.elementText("name");
if (_log.isWarnEnabled()) {
_log.warn(
"Unable to load method " + methodName +
" from class " + type);
}
}
}
}
}
protected JavadocClass parseJavadocClass(
String servletContextName, Element javadocElement, Class<?> clazz) {
List<Element> authorElements = javadocElement.elements("author");
String[] authors = new String[authorElements.size()];
for (int i = 0; i < authorElements.size(); i++) {
Element authorElement = authorElements.get(i);
authors[i] = authorElement.getText();
}
return new JavadocClass(
servletContextName, javadocElement.elementText("comment"), clazz,
authors);
}
protected JavadocMethod parseJavadocMethod(
String servletContextName, Class<?> clazz, Element methodElement)
throws Exception {
String name = methodElement.elementText("name");
if (name.equals(clazz.getSimpleName()) ||
name.startsWith(StringPool.UNDERLINE)) {
return null;
}
List<Element> paramElements = methodElement.elements("param");
Class<?>[] parameterTypeClasses = new Class<?>[paramElements.size()];
String[] parameterComments = new String[paramElements.size()];
for (int i = 0; i < paramElements.size(); i++) {
Element paramElement = paramElements.get(i);
String parameterType = paramElement.elementText("type");
Class<?> parametarTypeClass = JavadocUtil.loadClass(
clazz.getClassLoader(), parameterType);
parameterTypeClasses[i] = parametarTypeClass;
String parameterComment = paramElement.elementText("comment");
parameterComments[i] = parameterComment;
}
Method method = clazz.getDeclaredMethod(name, parameterTypeClasses);
String comment = methodElement.elementText("comment");
if (Validator.isNull(comment)) {
return new EmptyJavadocMethod(servletContextName, method);
}
String returnComment = null;
Element returnElement = methodElement.element("return");
if (returnElement != null) {
returnComment = returnElement.elementText("comment");
}
List<Element> throwsElements = methodElement.elements("throws");
String[] throwsComments = new String[throwsElements.size()];
for (int i = 0; i < throwsElements.size(); i++) {
Element throwElement = throwsElements.get(i);
throwsComments[i] = throwElement.elementText("comment");
}
return new JavadocMethodImpl(
servletContextName, comment, method, parameterComments,
returnComment, throwsComments);
}
protected void unload(
String servletContextName,
Collection<? extends BaseJavadoc> collection) {
Iterator<? extends BaseJavadoc> iterator = collection.iterator();
while (iterator.hasNext()) {
BaseJavadoc javadoc = iterator.next();
if (servletContextName.equals(javadoc.getServletContextName())) {
iterator.remove();
}
}
}
private static final Log _log = LogFactoryUtil.getLog(
JavadocManagerImpl.class);
private final Map<Class<?>, JavadocClass> _javadocClasses = new HashMap<>();
private final Map<Method, JavadocMethod> _javadocMethods = new HashMap<>();
}