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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  
20  package org.apache.myfaces.tobago.internal.component;
21  
22  import org.apache.myfaces.tobago.internal.util.DateFormatUtils;
23  import org.slf4j.Logger;
24  import org.slf4j.LoggerFactory;
25  
26  import javax.faces.convert.Converter;
27  import javax.faces.convert.DateTimeConverter;
28  
29  public abstract class AbstractUIDate extends AbstractUIInput {
30  
31    private static final Logger LOG = LoggerFactory.getLogger(AbstractUIDate.class);
32  
33    public String getPattern() {
34      String pattern = null;
35      final Converter help = getConverter();
36      if (help instanceof DateTimeConverter) {
37        final DateTimeConverter converter = (DateTimeConverter) help;
38        pattern = DateFormatUtils.findPattern(converter);
39      }
40      if (pattern == null) {
41        pattern = "yyyy-MM-dd";
42        LOG.warn("Can't find the pattern for the converter! DatePicker may not work correctly. "
43            + "Trying to use: '" + pattern + "'");
44      }
45      return pattern;
46    }
47  }