net.ymate.platform.webmvc.context.WebContext Maven / Gradle / Ivy
/*
* Copyright 2007-2017 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.ymate.platform.webmvc.context;
import net.ymate.platform.core.lang.BlurObject;
import net.ymate.platform.webmvc.IMultipartRequestWrapper;
import net.ymate.platform.webmvc.IRequestContext;
import net.ymate.platform.webmvc.IUploadFileWrapper;
import net.ymate.platform.webmvc.IWebMvc;
import net.ymate.platform.webmvc.base.Type;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.PageContext;
import java.util.*;
/**
* Web环境上下文封装类，为了能够方便代码移植并脱离Web环境依赖进行开发测试(功能参考Struts2)
*
* @author 刘镇 ([email protected]) on 2011-7-24 下午10:31:48
* @version 1.0
*/
public final class WebContext {
private static final ThreadLocal __LOCAL_CONTEXT = new ThreadLocal();
private final Map __attributes;
public static WebContext getContext() {
return __LOCAL_CONTEXT.get();
}
public static void destroy() {
__LOCAL_CONTEXT.remove();
}
public static WebContext create(IWebMvc webMvc,
IRequestContext requestContext,
ServletContext servletContext,
HttpServletRequest request,
HttpServletResponse response) {
HashMap _contextMap = new HashMap();
_contextMap.put(Type.Context.WEB_REQUEST_CONTEXT, requestContext);
_contextMap.put(Type.Context.PARAMETERS, request.getParameterMap());
_contextMap.put(Type.Context.REQUEST, new RequestMap(request));
_contextMap.put(Type.Context.SESSION, new SessionMap(request));
_contextMap.put(Type.Context.APPLICATION, new ApplicationMap(servletContext));
_contextMap.put(Type.Context.LOCALE, webMvc.getOwner().getConfig().getDefaultLocale());
_contextMap.put(Type.Context.HTTP_REQUEST, request);
_contextMap.put(Type.Context.HTTP_RESPONSE, response);
_contextMap.put(Type.Context.SERVLET_CONTEXT, servletContext);
_contextMap.put(Type.Context.WEB_CONTEXT_OWNER, webMvc);
//
WebContext _context = new WebContext(_contextMap);
__LOCAL_CONTEXT.set(_context);
//
return _context;
}
public static ServletContext getServletContext() {
return (ServletContext) WebContext.getContext().getAttribute(Type.Context.SERVLET_CONTEXT);
}
public static PageContext getPageContext() {
return WebContext.getContext().getAttribute(Type.Context.PAGE_CONTEXT);
}
public static IRequestContext getRequestContext() {
return WebContext.getContext().getAttribute(Type.Context.WEB_REQUEST_CONTEXT);
}
public static HttpServletRequest getRequest() {
return WebContext.getContext().getAttribute(Type.Context.HTTP_REQUEST);
}
public static HttpServletResponse getResponse() {
return WebContext.getContext().getAttribute(Type.Context.HTTP_RESPONSE);
}
private WebContext(Map contextMap) {
__attributes = contextMap;
}
@SuppressWarnings("unchecked")
public T getAttribute(String name) {
return (T) __attributes.get(name);
}
public WebContext addAttribute(String name, Object value) {
__attributes.put(name, value);
return this;
}
public Map getAttributes() {
return __attributes;
}
public Locale getLocale() {
Locale _locale = getAttribute(Type.Context.LOCALE);
if (_locale == null) {
_locale = Locale.getDefault();
}
return _locale;
}
public Map getApplication() {
return getAttribute(Type.Context.APPLICATION);
}
public Map getSession() {
return getAttribute(Type.Context.SESSION);
}
public Map getParameters() {
return getAttribute(Type.Context.PARAMETERS);
}
public IWebMvc getOwner() {
return getAttribute(Type.Context.WEB_CONTEXT_OWNER);
}
// -----------------
@SuppressWarnings("unchecked")
public T getApplicationAttributeToObject(String name) {
return (T) getApplication().get(name);
}
public String getApplicationAttributeToString(String name) {
return BlurObject.bind(getApplication().get(name)).toStringValue();
}
public int getApplicationAttributeToInt(String name) {
return BlurObject.bind(getApplication().get(name)).toIntValue();
}
public long getApplicationAttributeToLong(String name) {
return BlurObject.bind(getApplication().get(name)).toLongValue();
}
public boolean getApplicationAttributeToBoolean(String name) {
return BlurObject.bind(getApplication().get(name)).toBooleanValue();
}
public WebContext addApplicationAttribute(String name, Object value) {
getApplication().put(name, value);
return this;
}
// -----------------
@SuppressWarnings("unchecked")
public T getSessionAttributeToObject(String name) {
return (T) getSession().get(name);
}
public String getSessionAttributeToString(String name) {
return BlurObject.bind(getSession().get(name)).toStringValue();
}
public int getSessionAttributeToInt(String name) {
return BlurObject.bind(getSession().get(name)).toIntValue();
}
public long getSessionAttributeToLong(String name) {
return BlurObject.bind(getSession().get(name)).toLongValue();
}
public boolean getSessionAttributeToBoolean(String name) {
return BlurObject.bind(getSession().get(name)).toBooleanValue();
}
public WebContext addSessionAttribute(String name, Object value) {
getSession().put(name, value);
return this;
}
// -----------------
@SuppressWarnings("unchecked")
public T getRequestAttributeToObject(String name) {
return (T) getRequest().getAttribute(name);
}
public String getRequestAttributeToString(String name) {
return BlurObject.bind(getRequest().getAttribute(name)).toStringValue();
}
public int getRequestAttributeToInt(String name) {
return BlurObject.bind(getRequest().getAttribute(name)).toIntValue();
}
public long getRequestAttributeToLong(String name) {
return BlurObject.bind(getRequest().getAttribute(name)).toLongValue();
}
public boolean getRequestAttributeToBoolean(String name) {
return BlurObject.bind(getRequest().getAttribute(name)).toBooleanValue();
}
public WebContext addRequestAttribute(String name, Object value) {
getRequest().setAttribute(name, value);
return this;
}
// -----------------
public String getParameterToString(String name) {
String[] _values = (String[]) getParameters().get(name);
if (_values != null && _values.length > 0) {
return _values[0];
}
return null;
}
public int getParameterToInt(String name) {
return BlurObject.bind(getParameterToString(name)).toIntValue();
}
public long getParameterToLong(String name) {
return BlurObject.bind(getParameterToString(name)).toLongValue();
}
public boolean getParameterToBoolean(String name) {
return BlurObject.bind(getParameterToString(name)).toBooleanValue();
}
// MultipartRequestWrapper
public IUploadFileWrapper getUploadFile(String name) {
if (getRequest() instanceof IMultipartRequestWrapper) {
return ((IMultipartRequestWrapper) getRequest()).getUploadFile(name);
}
return null;
}
public IUploadFileWrapper[] getUploadFiles(String name) {
if (getRequest() instanceof IMultipartRequestWrapper) {
return ((IMultipartRequestWrapper) getRequest()).getUploadFiles(name);
}
return null;
}
public Set getUploadFiles() {
if (getRequest() instanceof IMultipartRequestWrapper) {
return ((IMultipartRequestWrapper) getRequest()).getUploadFiles();
}
return Collections.emptySet();
}
}