001    package org.apache.myfaces.tobago.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 static org.apache.myfaces.tobago.TobagoConstants.ATTR_ENCTYPE;
021    import org.apache.myfaces.tobago.util.MessageFactory;
022    import org.apache.commons.fileupload.FileItem;
023    
024    import javax.faces.component.UIComponent;
025    import javax.faces.context.FacesContext;
026    import javax.faces.application.FacesMessage;
027    
028    /*
029     * Created by IntelliJ IDEA.
030     * User: bommel
031     * Date: 10.02.2006
032     * Time: 19:02:13
033     */
034    public class UIFileInput extends javax.faces.component.UIInput {
035      public static final String COMPONENT_TYPE = "org.apache.myfaces.tobago.FileInput";
036    
037      public void setParent(UIComponent uiComponent) {
038        super.setParent(uiComponent);
039        UIPage form = ComponentUtil.findPage(getFacesContext(), uiComponent);
040        if (form != null) {
041          form.getAttributes().put(ATTR_ENCTYPE, "multipart/form-data");
042        }
043      }
044    
045      public void validate(FacesContext facesContext) {
046        if (isRequired()) {
047          FileItem file = (FileItem) getSubmittedValue();
048          if (file == null || file.getName().length() == 0) {
049            FacesMessage facesMessage = MessageFactory.createFacesMessage(
050                facesContext, REQUIRED_MESSAGE_ID, FacesMessage.SEVERITY_ERROR);
051            facesContext.addMessage(getClientId(facesContext), facesMessage);
052            setValid(false);
053          }
054        }
055        super.validate(facesContext);
056      }
057    }