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    1   /*
    2    * $Id: Head.java 651946 2008-04-27 13:41:38Z apetrelli $
    3    *
    4    * Licensed to the Apache Software Foundation (ASF) under one
    5    * or more contributor license agreements.  See the NOTICE file
    6    * distributed with this work for additional information
    7    * regarding copyright ownership.  The ASF licenses this file
    8    * to you under the Apache License, Version 2.0 (the
    9    * "License"); you may not use this file except in compliance
   10    * with the License.  You may obtain a copy of the License at
   11    *
   12    *  http://www.apache.org/licenses/LICENSE-2.0
   13    *
   14    * Unless required by applicable law or agreed to in writing,
   15    * software distributed under the License is distributed on an
   16    * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   17    * KIND, either express or implied.  See the License for the
   18    * specific language governing permissions and limitations
   19    * under the License.
   20    */
   21   
   22   package org.apache.struts2.components;
   23   
   24   import javax.servlet.http.HttpServletRequest;
   25   import javax.servlet.http.HttpServletResponse;
   26   
   27   import org.apache.struts2.views.annotations.StrutsTag;
   28   import org.apache.struts2.StrutsConstants;
   29   
   30   import com.opensymphony.xwork2.inject.Inject;
   31   import com.opensymphony.xwork2.util.ValueStack;
   32   
   33   /**
   34    * <!-- START SNIPPET: javadoc -->
   35    *
   36    * Renders parts of the HEAD section for an HTML file. Encoding can be set using this tag.
   37    * <!-- END SNIPPET: javadoc -->
   38    *
   39    * <p/> <b>Examples</b>
   40    *
   41    * <pre>
   42    * <!-- START SNIPPET: example1 -->
   43    * &lt;head&gt;
   44    *   &lt;title&gt;My page&lt;/title&gt;
   45    *   &lt;s:head/&gt;
   46    * &lt;/head&gt;
   47    * <!-- END SNIPPET: example1 -->
   48    * </pre>
   49    *
   50    */
   51   @StrutsTag(name="head", tldBodyContent="empty", tldTagClass="org.apache.struts2.views.jsp.ui.HeadTag",
   52       description="Render a chunk of HEAD for your HTML file")
   53   public class Head extends UIBean {
   54       public static final String TEMPLATE = "head";
   55   
   56       private String encoding;
   57   
   58       public Head(ValueStack stack, HttpServletRequest request, HttpServletResponse response) {
   59           super(stack, request, response);
   60       }
   61   
   62       protected String getDefaultTemplate() {
   63           return TEMPLATE;
   64       }
   65   
   66       @Inject(StrutsConstants.STRUTS_I18N_ENCODING)
   67       public void setEncoding(String encoding) {
   68           this.encoding = encoding;
   69       }
   70   
   71       public void evaluateParams() {
   72           super.evaluateParams();
   73   
   74           addParameter("encoding", encoding);
   75       }
   76   }

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