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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.component.SupportsLabelLayout;
23  import org.apache.myfaces.tobago.component.Visual;
24  import org.apache.myfaces.tobago.util.MessageUtils;
25  
26  import javax.faces.application.FacesMessage;
27  import javax.faces.component.UIInput;
28  import javax.faces.component.behavior.ClientBehaviorHolder;
29  import javax.faces.context.FacesContext;
30  import javax.servlet.http.Part;
31  import java.util.Arrays;
32  import java.util.Collection;
33  
34  public abstract class AbstractUIFile extends UIInput implements SupportsLabelLayout, Visual, ClientBehaviorHolder {
35  
36    // todo generate
37    private static final Collection<String> EVENT_NAMES = Arrays.asList("change");
38  
39    // todo generate
40    @Override
41    public String getDefaultEventName() {
42      return "change";
43    }
44  
45    // todo generate
46    @Override
47    public Collection<String> getEventNames() {
48      return EVENT_NAMES;
49    }
50  
51    @Override
52    public void validate(final FacesContext facesContext) {
53      if (isRequired()) {
54        if (getSubmittedValue() instanceof Part) {
55          final Part file = (Part) getSubmittedValue();
56          if (file == null || file.getName().length() == 0) {
57            addErrorMessage(facesContext);
58            setValid(false);
59          }
60        } else {
61          addErrorMessage(facesContext);
62          setValid(false);
63        }
64      }
65      super.validate(facesContext);
66    }
67  
68    private void addErrorMessage(final FacesContext facesContext) {
69      MessageUtils.addMessage(
70          facesContext, this, FacesMessage.SEVERITY_ERROR, REQUIRED_MESSAGE_ID, new Object[]{getId()});
71    }
72  
73    public abstract boolean isDisabled();
74  
75    public abstract boolean isReadonly();
76  
77    public abstract Integer getTabIndex();
78  }