001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *   http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    
020    package org.apache.myfaces.tobago.taglib.component;
021    
022    import org.apache.commons.lang.StringUtils;
023    import org.apache.myfaces.tobago.apt.annotation.Tag;
024    import org.apache.myfaces.tobago.apt.annotation.TagAttribute;
025    import org.apache.myfaces.tobago.validator.FileItemValidator;
026    
027    import javax.faces.webapp.ValidatorTag;
028    import javax.faces.validator.Validator;
029    import javax.servlet.jsp.JspException;
030    
031    /*
032     * Date: Oct 30, 2006
033     * Time: 11:07:35 PM
034     */
035    
036    /**
037     * Register an FileItemValidator instance on the UIComponent
038     * associated with the closest parent UIComponent custom action.
039     */
040    @Tag(name = "validateFileItem")
041    public class FileItemValidatorTag extends ValidatorTag {
042    
043      private static final long serialVersionUID = -1461244883146997440L;
044    
045      private String maxSize;
046      private String contentType;
047    
048      public String getMaxSize() {
049        return maxSize;
050      }
051    
052      @TagAttribute()
053      public void setMaxSize(String maxSize) {
054        this.maxSize = maxSize;
055      }
056    
057      public String getContentType() {
058        return contentType;
059      }
060    
061      @TagAttribute()
062      public void setContentType(String contentType) {
063        this.contentType = contentType;
064      }
065    
066      protected Validator createValidator() throws JspException {
067        setValidatorId(FileItemValidator.VALIDATOR_ID);
068        FileItemValidator validator = (FileItemValidator) super.createValidator();
069    
070        if (maxSize != null) {
071          try {
072            validator.setMaxSize(Integer.parseInt(maxSize));
073          } catch (NumberFormatException e) {
074            // ignore
075          }
076        }
077        if (contentType != null) {
078          validator.setContentType(StringUtils.split(contentType, ", "));
079        }
080        return validator;
081      }
082    
083    
084      public void release() {
085        super.release();
086        maxSize = null;
087        contentType = null;
088      }
089    
090    }