| Clover coverage report - Maven Clover report |
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| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| QuotedPrintableDecoderStream.java | 75% | 63.6% | 40% | 60% |
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| 1 | /** | |
| 2 | * | |
| 3 | * Copyright 2003-2004 The Apache Software Foundation | |
| 4 | * | |
| 5 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 6 | * you may not use this file except in compliance with the License. | |
| 7 | * 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 | ||
| 18 | package org.apache.geronimo.mail.util; | |
| 19 | ||
| 20 | import java.io.ByteArrayOutputStream; | |
| 21 | import java.io.FilterInputStream; | |
| 22 | import java.io.IOException; | |
| 23 | import java.io.InputStream; | |
| 24 | import java.io.UnsupportedEncodingException; | |
| 25 | ||
| 26 | /** | |
| 27 | * An implementation of a FilterOutputStream that decodes the | |
| 28 | * stream data in Q-P encoding format. This version does the | |
| 29 | * decoding "on the fly" rather than decoding a single block of | |
| 30 | * data. Since this version is intended for use by the MimeUtilty class, | |
| 31 | * it also handles line breaks in the encoded data. | |
| 32 | */ | |
| 33 | public class QuotedPrintableDecoderStream extends FilterInputStream { | |
| 34 | // our decoder for processing the data | |
| 35 | protected QuotedPrintableEncoder decoder; | |
| 36 | ||
| 37 | ||
| 38 | /** | |
| 39 | * Stream constructor. | |
| 40 | * | |
| 41 | * @param in The InputStream this stream is filtering. | |
| 42 | */ | |
| 43 | 3 | public QuotedPrintableDecoderStream(InputStream in) { |
| 44 | 3 | super(in); |
| 45 | 3 | decoder = new QuotedPrintableEncoder(); |
| 46 | } | |
| 47 | ||
| 48 | // in order to function as a filter, these streams need to override the different | |
| 49 | // read() signatures. | |
| 50 | ||
| 51 | ||
| 52 | /** | |
| 53 | * Read a single byte from the stream. | |
| 54 | * | |
| 55 | * @return The next byte of the stream. Returns -1 for an EOF condition. | |
| 56 | * @exception IOException | |
| 57 | */ | |
| 58 | 0 | public int read() throws IOException |
| 59 | { | |
| 60 | // just get a single byte from the decoder | |
| 61 | 0 | return decoder.decode(in); |
| 62 | } | |
| 63 | ||
| 64 | ||
| 65 | /** | |
| 66 | * Read a buffer of data from the input stream. | |
| 67 | * | |
| 68 | * @param buffer The target byte array the data is placed into. | |
| 69 | * @param offset The starting offset for the read data. | |
| 70 | * @param length How much data is requested. | |
| 71 | * | |
| 72 | * @return The number of bytes of data read. | |
| 73 | * @exception IOException | |
| 74 | */ | |
| 75 | 3 | public int read(byte [] buffer, int offset, int length) throws IOException { |
| 76 | ||
| 77 | 3 | for (int i = 0; i < length; i++) { |
| 78 | 765 | int ch = decoder.decode(in); |
| 79 | 765 | if (ch == -1) { |
| 80 | 0 | return i; |
| 81 | } | |
| 82 | 765 | buffer[offset + i] = (byte)ch; |
| 83 | } | |
| 84 | ||
| 85 | 3 | return length; |
| 86 | } | |
| 87 | ||
| 88 | ||
| 89 | /** | |
| 90 | * Indicate whether this stream supports the mark() operation. | |
| 91 | * | |
| 92 | * @return Always returns false. | |
| 93 | */ | |
| 94 | 0 | public boolean markSupported() { |
| 95 | 0 | return false; |
| 96 | } | |
| 97 | ||
| 98 | ||
| 99 | /** | |
| 100 | * Give an estimate of how much additional data is available | |
| 101 | * from this stream. | |
| 102 | * | |
| 103 | * @return Always returns -1. | |
| 104 | * @exception IOException | |
| 105 | */ | |
| 106 | 0 | public int available() throws IOException { |
| 107 | // this is almost impossible to determine at this point | |
| 108 | 0 | return -1; |
| 109 | } | |
| 110 | } | |
| 111 | ||
| 112 |
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