01: // Copyright 2006 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.internal.util;
16:
17: import java.io.ByteArrayInputStream;
18:
19: import org.apache.commons.codec.binary.Base64;
20:
21: /**
22: * An extension of {@link ByteArrayInputStream} that is initialized from a Base64 input stream
23: * (rather than from a byte array).
24: */
25: public class Base64InputStream extends ByteArrayInputStream {
26: public Base64InputStream(String base64) {
27: super (decode(base64));
28: }
29:
30: private static byte[] decode(String base64) {
31: byte[] array = base64.getBytes();
32:
33: return Base64.decodeBase64(array);
34: }
35: }
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