ClpSerializer.java | searchcode

/docroot/WEB-INF/service/com/liferay/docs/guestbook/service/ClpSerializer.java

https://gitlab.com/bruce.ng/guestbook-portlet
Java | 341 lines | 230 code | 95 blank | 16 comment | 38 complexity | 89f41424a18a58b4df5e067ed8d16c30 MD5 | raw file

/**
 * Copyright (c) 2000-2013 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.docs.guestbook.service;

import com.liferay.docs.guestbook.model.EntryClp;
import com.liferay.docs.guestbook.model.GuestbookClp;

import com.liferay.portal.kernel.exception.PortalException;
import com.liferay.portal.kernel.exception.SystemException;
import com.liferay.portal.kernel.io.unsync.UnsyncByteArrayInputStream;
import com.liferay.portal.kernel.io.unsync.UnsyncByteArrayOutputStream;
import com.liferay.portal.kernel.log.Log;
import com.liferay.portal.kernel.log.LogFactoryUtil;
import com.liferay.portal.kernel.util.ClassLoaderObjectInputStream;
import com.liferay.portal.kernel.util.PropsUtil;
import com.liferay.portal.kernel.util.Validator;
import com.liferay.portal.model.BaseModel;

import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import java.lang.reflect.Method;

import java.util.ArrayList;
import java.util.List;

/**
 * @author Rich Sezov
 */
public class ClpSerializer {
	public static String getServletContextName() {
		if (Validator.isNotNull(_servletContextName)) {
			return _servletContextName;
		}
		
		synchronized (ClpSerializer.class) {
			if (Validator.isNotNull(_servletContextName)) {
				return _servletContextName;
			}
			
			try {
				ClassLoader classLoader = ClpSerializer.class.getClassLoader();
				
				Class<?> portletPropsClass = classLoader.loadClass("com.liferay.util.portlet.PortletProps");
				
				Method getMethod = portletPropsClass.getMethod("get", new Class<?>[] { String.class });
				
				String portletPropsServletContextName = (String) getMethod.invoke(null, "guestbook-portlet-deployment-context");
				
				if (Validator.isNotNull(portletPropsServletContextName)) {
					_servletContextName = portletPropsServletContextName;
				}
			} catch (Throwable t) {
				if (_log.isInfoEnabled()) {
					_log.info("Unable to locate deployment context from portlet properties");
				}
			}
			
			if (Validator.isNull(_servletContextName)) {
				try {
					String propsUtilServletContextName = PropsUtil.get("guestbook-portlet-deployment-context");
					
					if (Validator.isNotNull(propsUtilServletContextName)) {
						_servletContextName = propsUtilServletContextName;
					}
				} catch (Throwable t) {
					if (_log.isInfoEnabled()) {
						_log.info("Unable to locate deployment context from portal properties");
					}
				}
			}
			
			if (Validator.isNull(_servletContextName)) {
				_servletContextName = "guestbook-portlet";
			}
			
			return _servletContextName;
		}
	}
	
	public static Object translateInput(BaseModel<?> oldModel) {
		Class<?> oldModelClass = oldModel.getClass();
		
		String oldModelClassName = oldModelClass.getName();
		
		if (oldModelClassName.equals(EntryClp.class.getName())) {
			return translateInputEntry(oldModel);
		}
		
		if (oldModelClassName.equals(GuestbookClp.class.getName())) {
			return translateInputGuestbook(oldModel);
		}
		
		return oldModel;
	}
	
	public static Object translateInput(List<Object> oldList) {
		List<Object> newList = new ArrayList<Object>(oldList.size());
		
		for (int i = 0; i < oldList.size(); i++) {
			Object curObj = oldList.get(i);
			
			newList.add(translateInput(curObj));
		}
		
		return newList;
	}
	
	public static Object translateInputEntry(BaseModel<?> oldModel) {
		EntryClp oldClpModel = (EntryClp) oldModel;
		
		BaseModel<?> newModel = oldClpModel.getEntryRemoteModel();
		
		newModel.setModelAttributes(oldClpModel.getModelAttributes());
		
		return newModel;
	}
	
	public static Object translateInputGuestbook(BaseModel<?> oldModel) {
		GuestbookClp oldClpModel = (GuestbookClp) oldModel;
		
		BaseModel<?> newModel = oldClpModel.getGuestbookRemoteModel();
		
		newModel.setModelAttributes(oldClpModel.getModelAttributes());
		
		return newModel;
	}
	
	public static Object translateInput(Object obj) {
		if (obj instanceof BaseModel<?>) {
			return translateInput((BaseModel<?>) obj);
		} else if (obj instanceof List<?>) {
			return translateInput((List<Object>) obj);
		} else {
			return obj;
		}
	}
	
	public static Object translateOutput(BaseModel<?> oldModel) {
		Class<?> oldModelClass = oldModel.getClass();
		
		String oldModelClassName = oldModelClass.getName();
		
		if (oldModelClassName.equals("com.liferay.docs.guestbook.model.impl.EntryImpl")) {
			return translateOutputEntry(oldModel);
		} else if (oldModelClassName.endsWith("Clp")) {
			try {
				ClassLoader classLoader = ClpSerializer.class.getClassLoader();
				
				Method getClpSerializerClassMethod = oldModelClass.getMethod("getClpSerializerClass");
				
				Class<?> oldClpSerializerClass = (Class<?>) getClpSerializerClassMethod.invoke(oldModel);
				
				Class<?> newClpSerializerClass = classLoader.loadClass(oldClpSerializerClass.getName());
				
				Method translateOutputMethod = newClpSerializerClass.getMethod("translateOutput", BaseModel.class);
				
				Class<?> oldModelModelClass = oldModel.getModelClass();
				
				Method getRemoteModelMethod = oldModelClass.getMethod("get" + oldModelModelClass.getSimpleName() + "RemoteModel");
				
				Object oldRemoteModel = getRemoteModelMethod.invoke(oldModel);
				
				BaseModel<?> newModel = (BaseModel<?>) translateOutputMethod.invoke(null, oldRemoteModel);
				
				return newModel;
			} catch (Throwable t) {
				if (_log.isInfoEnabled()) {
					_log.info("Unable to translate " + oldModelClassName, t);
				}
			}
		}
		
		if (oldModelClassName.equals("com.liferay.docs.guestbook.model.impl.GuestbookImpl")) {
			return translateOutputGuestbook(oldModel);
		} else if (oldModelClassName.endsWith("Clp")) {
			try {
				ClassLoader classLoader = ClpSerializer.class.getClassLoader();
				
				Method getClpSerializerClassMethod = oldModelClass.getMethod("getClpSerializerClass");
				
				Class<?> oldClpSerializerClass = (Class<?>) getClpSerializerClassMethod.invoke(oldModel);
				
				Class<?> newClpSerializerClass = classLoader.loadClass(oldClpSerializerClass.getName());
				
				Method translateOutputMethod = newClpSerializerClass.getMethod("translateOutput", BaseModel.class);
				
				Class<?> oldModelModelClass = oldModel.getModelClass();
				
				Method getRemoteModelMethod = oldModelClass.getMethod("get" + oldModelModelClass.getSimpleName() + "RemoteModel");
				
				Object oldRemoteModel = getRemoteModelMethod.invoke(oldModel);
				
				BaseModel<?> newModel = (BaseModel<?>) translateOutputMethod.invoke(null, oldRemoteModel);
				
				return newModel;
			} catch (Throwable t) {
				if (_log.isInfoEnabled()) {
					_log.info("Unable to translate " + oldModelClassName, t);
				}
			}
		}
		
		return oldModel;
	}
	
	public static Object translateOutput(List<Object> oldList) {
		List<Object> newList = new ArrayList<Object>(oldList.size());
		
		for (int i = 0; i < oldList.size(); i++) {
			Object curObj = oldList.get(i);
			
			newList.add(translateOutput(curObj));
		}
		
		return newList;
	}
	
	public static Object translateOutput(Object obj) {
		if (obj instanceof BaseModel<?>) {
			return translateOutput((BaseModel<?>) obj);
		} else if (obj instanceof List<?>) {
			return translateOutput((List<Object>) obj);
		} else {
			return obj;
		}
	}
	
	public static Throwable translateThrowable(Throwable throwable) {
		if (_useReflectionToTranslateThrowable) {
			try {
				UnsyncByteArrayOutputStream unsyncByteArrayOutputStream = new UnsyncByteArrayOutputStream();
				ObjectOutputStream objectOutputStream = new ObjectOutputStream(unsyncByteArrayOutputStream);
				
				objectOutputStream.writeObject(throwable);
				
				objectOutputStream.flush();
				objectOutputStream.close();
				
				UnsyncByteArrayInputStream unsyncByteArrayInputStream = new UnsyncByteArrayInputStream(
						unsyncByteArrayOutputStream.unsafeGetByteArray(), 0, unsyncByteArrayOutputStream.size());
				
				Thread currentThread = Thread.currentThread();
				
				ClassLoader contextClassLoader = currentThread.getContextClassLoader();
				
				ObjectInputStream objectInputStream = new ClassLoaderObjectInputStream(unsyncByteArrayInputStream, contextClassLoader);
				
				throwable = (Throwable) objectInputStream.readObject();
				
				objectInputStream.close();
				
				return throwable;
			} catch (SecurityException se) {
				if (_log.isInfoEnabled()) {
					_log.info("Do not use reflection to translate throwable");
				}
				
				_useReflectionToTranslateThrowable = false;
			} catch (Throwable throwable2) {
				_log.error(throwable2, throwable2);
				
				return throwable2;
			}
		}
		
		Class<?> clazz = throwable.getClass();
		
		String className = clazz.getName();
		
		if (className.equals(PortalException.class.getName())) {
			return new PortalException();
		}
		
		if (className.equals(SystemException.class.getName())) {
			return new SystemException();
		}
		
		if (className.equals("com.liferay.docs.guestbook.EntryEmailException")) {
			return new com.liferay.docs.guestbook.EntryEmailException();
		}
		
		if (className.equals("com.liferay.docs.guestbook.EntryMessageException")) {
			return new com.liferay.docs.guestbook.EntryMessageException();
		}
		
		if (className.equals("com.liferay.docs.guestbook.EntryNameException")) {
			return new com.liferay.docs.guestbook.EntryNameException();
		}
		
		if (className.equals("com.liferay.docs.guestbook.GuestbookNameException")) {
			return new com.liferay.docs.guestbook.GuestbookNameException();
		}
		
		if (className.equals("com.liferay.docs.guestbook.NoSuchEntryException")) {
			return new com.liferay.docs.guestbook.NoSuchEntryException();
		}
		
		if (className.equals("com.liferay.docs.guestbook.NoSuchGuestbookException")) {
			return new com.liferay.docs.guestbook.NoSuchGuestbookException();
		}
		
		return throwable;
	}
	
	public static Object translateOutputEntry(BaseModel<?> oldModel) {
		EntryClp newModel = new EntryClp();
		
		newModel.setModelAttributes(oldModel.getModelAttributes());
		
		newModel.setEntryRemoteModel(oldModel);
		
		return newModel;
	}
	
	public static Object translateOutputGuestbook(BaseModel<?> oldModel) {
		GuestbookClp newModel = new GuestbookClp();
		
		newModel.setModelAttributes(oldModel.getModelAttributes());
		
		newModel.setGuestbookRemoteModel(oldModel);
		
		return newModel;
	}
	
	private static Log _log = LogFactoryUtil.getLog(ClpSerializer.class);
	private static String _servletContextName;
	private static boolean _useReflectionToTranslateThrowable = true;
}