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.ByteArrayOutputStream;
18:
19: import org.apache.commons.codec.binary.Base64;
20:
21: /**
22: * An extension of {@link ByteArrayOutputStream} that allows the final byte array to be converted to
23: * a Base64 string.
24: */
25: public final class Base64OutputStream extends ByteArrayOutputStream {
26: public String toBase64() {
27: byte[] binary = toByteArray();
28:
29: byte[] base64 = Base64.encodeBase64(binary);
30:
31: String result = new String(base64);
32:
33: // System.out.printf("result = %d characters\n\n", result.length());
34:
35: return result;
36: }
37: }
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