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 @TagAttribute(required = true)
087 public void setVar(String var) {
088 this.var = var;
089 }
090
091 }
092