restful2actionmapper.java

struts 2 核心包 的源码 有错误是难免的

// Decompiled by Jad v1.5.8e2. Copyright 2001 Pavel Kouznetsov.
// Jad home page: http://kpdus.tripod.com/jad.html
// Decompiler options: packimports(3) fieldsfirst ansi space 
// Source File Name:   Restful2ActionMapper.java

package org.apache.struts2.dispatcher.mapper;

import com.opensymphony.xwork2.config.ConfigurationManager;
import java.net.URLDecoder;
import java.util.*;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

// Referenced classes of package org.apache.struts2.dispatcher.mapper:
//			DefaultActionMapper, ActionMapping

public class Restful2ActionMapper extends DefaultActionMapper
{

	protected static final Log LOG = LogFactory.getLog(org/apache/struts2/dispatcher/mapper/Restful2ActionMapper);
	public static final String HTTP_METHOD_PARAM = "__http_method";
	private String idParameterName;

	public Restful2ActionMapper()
	{
		idParameterName = null;
		setSlashesInActionNames("true");
	}

	public ActionMapping getMapping(HttpServletRequest request, ConfigurationManager configManager)
	{
		if (!isSlashesInActionNames())
			throw new IllegalStateException("This action mapper requires the setting 'slashesInActionNames' to be set to 'true'");
		ActionMapping mapping = super.getMapping(request, configManager);
		if (mapping == null)
			return null;
		String actionName = mapping.getName();
		if (actionName != null && actionName.length() > 0)
		{
			int lastSlashPos = actionName.lastIndexOf('/');
			if (mapping.getMethod() == null)
			{
				if (lastSlashPos == actionName.length() - 1)
				{
					if (isGet(request))
						mapping.setMethod("index");
					else
					if (isPost(request))
						mapping.setMethod("create");
				} else
				if (lastSlashPos > -1)
				{
					String id = actionName.substring(lastSlashPos + 1);
					if (isGet(request) && "new".equals(id))
						mapping.setMethod("editNew");
					else
					if (isGet(request))
						mapping.setMethod("view");
					else
					if (isDelete(request))
						mapping.setMethod("remove");
					else
					if (isPut(request))
						mapping.setMethod("update");
					if (idParameterName != null)
					{
						if (mapping.getParams() == null)
							mapping.setParams(new HashMap());
						mapping.getParams().put(idParameterName, id);
					}
				}
				if (idParameterName != null && lastSlashPos > -1)
					actionName = actionName.substring(0, lastSlashPos);
			}
			int actionSlashPos = actionName.lastIndexOf('/', lastSlashPos - 1);
			if (actionSlashPos > 0 && actionSlashPos < lastSlashPos)
			{
				String params = actionName.substring(0, actionSlashPos);
				HashMap parameters = new HashMap();
				try
				{
					StringTokenizer st = new StringTokenizer(params, "/");
					boolean isNameTok = true;
					String paramName = null;
					while (st.hasMoreTokens()) 
						if (isNameTok)
						{
							paramName = URLDecoder.decode(st.nextToken(), "UTF-8");
							isNameTok = false;
						} else
						{
							String paramValue = URLDecoder.decode(st.nextToken(), "UTF-8");
							if (paramName != null && paramName.length() > 0)
								parameters.put(paramName, paramValue);
							isNameTok = true;
						}
					if (parameters.size() > 0)
					{
						if (mapping.getParams() == null)
							mapping.setParams(new HashMap());
						mapping.getParams().putAll(parameters);
					}
				}
				catch (Exception e)
				{
					LOG.warn(e);
				}
				mapping.setName(actionName.substring(actionSlashPos + 1));
			}
		}
		return mapping;
	}

	protected boolean isGet(HttpServletRequest request)
	{
		return "get".equalsIgnoreCase(request.getMethod());
	}

	protected boolean isPost(HttpServletRequest request)
	{
		return "post".equalsIgnoreCase(request.getMethod());
	}

	protected boolean isPut(HttpServletRequest request)
	{
		if ("put".equalsIgnoreCase(request.getMethod()))
			return true;
		else
			return isPost(request) && "put".equalsIgnoreCase(request.getParameter("__http_method"));
	}

	protected boolean isDelete(HttpServletRequest request)
	{
		if ("delete".equalsIgnoreCase(request.getMethod()))
			return true;
		else
			return isPost(request) && "delete".equalsIgnoreCase(request.getParameter("__http_method"));
	}

	public String getIdParameterName()
	{
		return idParameterName;
	}

	public void setIdParameterName(String idParameterName)
	{
		this.idParameterName = idParameterName;
	}

}