trinidad-example/trinidad-demo/src/main/java/org/apache/myfaces/trinidaddemo/email/EmailDisplayConverter.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.myfaces.trinidaddemo.email;

import javax.faces.component.UIComponent;
import javax.faces.convert.Converter;
import javax.faces.context.FacesContext;

/**
 * Converter that displays just the name, or the full
 * e-mail address if the name is not available.
 */
public class EmailDisplayConverter implements Converter
{
  public EmailDisplayConverter()
  {
  }

  public String getAsString(FacesContext context, UIComponent component,
                            Object value)
  {
    if (value == null)
      return null;

    String val = value.toString();
    int lessThanIndex = val.indexOf('<');
    if (lessThanIndex < 0)
      return val;

    return val.substring(0, lessThanIndex).trim();
  }

  public Object getAsObject(FacesContext context, UIComponent component,
                            String value)
  {
    throw new UnsupportedOperationException();
  }
}