001    package org.apache.myfaces.tobago.taglib.component;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one or more
005     * contributor license agreements.  See the NOTICE file distributed with
006     * this work for additional information regarding copyright ownership.
007     * The ASF licenses this file to You under the Apache License, Version 2.0
008     * (the "License"); you may not use this file except in compliance with
009     * the License.  You may obtain a copy of the License at
010     *
011     *      http://www.apache.org/licenses/LICENSE-2.0
012     *
013     * Unless required by applicable law or agreed to in writing, software
014     * distributed under the License is distributed on an "AS IS" BASIS,
015     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016     * See the License for the specific language governing permissions and
017     * limitations under the License.
018     */
019    
020    import org.apache.myfaces.tobago.apt.annotation.BodyContent;
021    import org.apache.myfaces.tobago.apt.annotation.Tag;
022    import org.apache.myfaces.tobago.apt.annotation.TagAttribute;
023    import org.apache.myfaces.tobago.util.BundleMapWrapper;
024    
025    import javax.faces.context.FacesContext;
026    import javax.faces.webapp.UIComponentTag;
027    import javax.servlet.jsp.JspException;
028    import javax.servlet.jsp.tagext.TagSupport;
029    import java.util.Map;
030    
031    /**
032     * Load a resource bundle localized for the Locale of the current view
033     * from the tobago resource path, and expose it (as a Map) in the request
034     * attributes of the current request.
035     */
036    @Tag(name = "loadBundle", bodyContent = BodyContent.EMPTY)
037    public class LoadBundleTag extends TagSupport {
038    
039      private static final long serialVersionUID = 4949984721486410191L;
040    
041      private String basename;
042      private String var;
043    
044      public int doStartTag() throws JspException {
045    
046        String bundleBaseName;
047        FacesContext context = FacesContext.getCurrentInstance();
048        if (UIComponentTag.isValueReference(basename)) {
049          bundleBaseName = (String) context.getApplication().createValueBinding(basename).getValue(context);
050        } else {
051          bundleBaseName = basename;
052        }
053        Map toStore = new BundleMapWrapper(bundleBaseName);
054        // TODO find a better way
055        context.getExternalContext().getSessionMap().put(var, toStore);
056    //        .getRequestMap().put(var, toStore);
057    
058        return EVAL_BODY_INCLUDE;
059      }
060    
061      public void release() {
062        basename = null;
063        var = null;
064      }
065    
066      public String getBasename() {
067        return basename;
068      }
069    
070      /**
071       * Base name of the resource bundle to be loaded.
072       */
073      @TagAttribute(required = true)
074      public void setBasename(String basename) {
075        this.basename = basename;
076      }
077    
078      public String getVar() {
079        return var;
080      }
081      /**
082       *
083       * Name of a session-scope attribute under which the bundle data
084       * will be exposed.
085       *
086       */
087      @TagAttribute(required = true)
088      public void setVar(String var) {
089        this.var = var;
090      }
091    
092    }
093