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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *     http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.mail.resolver;
18  
19  import java.io.IOException;
20  import java.io.InputStream;
21  
22  import javax.activation.DataSource;
23  
24  import org.apache.commons.io.IOUtils;
25  
26  public abstract class AbstractDataSourceResolverTest {
27  
28      protected final int IMG_SIZE = 5866;
29  
30      protected byte[] toByteArray(final DataSource dataSource) throws IOException
31      {
32          if(dataSource != null)
33          {
34              final InputStream is = dataSource.getInputStream();
35              try {
36                  return IOUtils.toByteArray(is);
37              } finally {
38                  is.close();
39              }
40          }
41          return null;
42      }
43  
44  }