freemarkerresult.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:   FreemarkerResult.java

package org.apache.struts2.views.freemarker;

import com.opensymphony.xwork2.*;
import freemarker.template.*;
import java.io.IOException;
import java.io.Writer;
import java.util.Locale;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts2.ServletActionContext;
import org.apache.struts2.dispatcher.StrutsResultSupport;
import org.apache.struts2.views.util.ResourceUtil;

// Referenced classes of package org.apache.struts2.views.freemarker:
//			FreemarkerManager

public class FreemarkerResult extends StrutsResultSupport
{

	private static final long serialVersionUID = 0xcb9107218d17f981L;
	protected ActionInvocation invocation;
	protected Configuration configuration;
	protected ObjectWrapper wrapper;
	protected FreemarkerManager freemarkerManager;
	private Writer writer;
	protected String location;
	private String pContentType;

	public FreemarkerResult()
	{
		pContentType = "text/html";
	}

	public FreemarkerResult(String location)
	{
		super(location);
		pContentType = "text/html";
	}

	public void setFreemarkerManager(FreemarkerManager mgr)
	{
		freemarkerManager = mgr;
	}

	public void setContentType(String aContentType)
	{
		pContentType = aContentType;
	}

	public String getContentType()
	{
		return pContentType;
	}

	public void doExecute(String location, ActionInvocation invocation)
		throws IOException, TemplateException
	{
		Template template;
		TemplateModel model;
		this.location = location;
		this.invocation = invocation;
		configuration = getConfiguration();
		wrapper = getObjectWrapper();
		if (!location.startsWith("/"))
		{
			ActionContext ctx = invocation.getInvocationContext();
			HttpServletRequest req = (HttpServletRequest)ctx.get("com.opensymphony.xwork2.dispatcher.HttpServletRequest");
			String base = ResourceUtil.getResourceBase(req);
			location = (new StringBuilder()).append(base).append("/").append(location).toString();
		}
		template = configuration.getTemplate(location, deduceLocale());
		model = createModel();
		if (!preTemplateProcess(template, model))
			break MISSING_BLOCK_LABEL_146;
		template.process(model, getWriter());
		postTemplateProcess(template, model);
		break MISSING_BLOCK_LABEL_146;
		Exception exception;
		exception;
		postTemplateProcess(template, model);
		throw exception;
	}

	protected Configuration getConfiguration()
		throws TemplateException
	{
		return freemarkerManager.getConfiguration(ServletActionContext.getServletContext());
	}

	protected ObjectWrapper getObjectWrapper()
	{
		return configuration.getObjectWrapper();
	}

	public void setWriter(Writer writer)
	{
		this.writer = writer;
	}

	protected Writer getWriter()
		throws IOException
	{
		if (writer != null)
			return writer;
		else
			return ServletActionContext.getResponse().getWriter();
	}

	protected TemplateModel createModel()
		throws TemplateModelException
	{
		javax.servlet.ServletContext servletContext = ServletActionContext.getServletContext();
		HttpServletRequest request = ServletActionContext.getRequest();
		HttpServletResponse response = ServletActionContext.getResponse();
		com.opensymphony.xwork2.util.ValueStack stack = ServletActionContext.getContext().getValueStack();
		Object action = null;
		if (invocation != null)
			action = invocation.getAction();
		return freemarkerManager.buildTemplateModel(stack, action, servletContext, request, response, wrapper);
	}

	protected Locale deduceLocale()
	{
		if (invocation.getAction() instanceof LocaleProvider)
			return ((LocaleProvider)invocation.getAction()).getLocale();
		else
			return configuration.getLocale();
	}

	protected void postTemplateProcess(Template template1, TemplateModel templatemodel)
		throws IOException
	{
	}

	protected boolean preTemplateProcess(Template template, TemplateModel model)
		throws IOException
	{
		Object attrContentType = template.getCustomAttribute("content_type");
		if (attrContentType != null)
		{
			ServletActionContext.getResponse().setContentType(attrContentType.toString());
		} else
		{
			String contentType = getContentType();
			if (contentType == null)
				contentType = "text/html";
			String encoding = template.getEncoding();
			if (encoding != null)
				contentType = (new StringBuilder()).append(contentType).append("; charset=").append(encoding).toString();
			ServletActionContext.getResponse().setContentType(contentType);
		}
		return true;
	}
}