| Clover coverage report - Maven Clover report |
|
 |
|
|||||||||||||||||||
| Source file | Conditionals | Statements | Methods | TOTAL | |||||||||||||||
| ServletInputStream.java | 0% | 0% | 0% | 0% |
|
||||||||||||||
| 1 | /* | |
| 2 | * Copyright 2004 The Apache Software Foundation | |
| 3 | * | |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
| 5 | * you may not use this file except in compliance with the License. | |
| 6 | * You may obtain a copy of the License at | |
| 7 | * | |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 9 | * | |
| 10 | * Unless required by applicable law or agreed to in writing, software | |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 13 | * See the License for the specific language governing permissions and | |
| 14 | * limitations under the License. | |
| 15 | */ | |
| 16 | package javax.servlet; | |
| 17 | ||
| 18 | import java.io.InputStream; | |
| 19 | import java.io.IOException; | |
| 20 | ||
| 21 | /** | |
| 22 | * | |
| 23 | * Provides an input stream for reading binary data from a client | |
| 24 | * request, including an efficient <code>readLine</code> method | |
| 25 | * for reading data one line at a time. With some protocols, such | |
| 26 | * as HTTP POST and PUT, a <code>ServletInputStream</code> | |
| 27 | * object can be used to read data sent from the client. | |
| 28 | * | |
| 29 | * <p>A <code>ServletInputStream</code> object is normally retrieved via | |
| 30 | * the {@link ServletRequest#getInputStream} method. | |
| 31 | * | |
| 32 | * | |
| 33 | * <p>This is an abstract class that a servlet container implements. | |
| 34 | * Subclasses of this class | |
| 35 | * must implement the <code>java.io.InputStream.read()</code> method. | |
| 36 | * | |
| 37 | * | |
| 38 | * @author Various | |
| 39 | * @version $Version$ | |
| 40 | * | |
| 41 | * @see ServletRequest | |
| 42 | * | |
| 43 | */ | |
| 44 | ||
| 45 | public abstract class ServletInputStream extends InputStream { | |
| 46 | ||
| 47 | ||
| 48 | ||
| 49 | /** | |
| 50 | * Does nothing, because this is an abstract class. | |
| 51 | * | |
| 52 | */ | |
| 53 | ||
| 54 | 0 | protected ServletInputStream() { } |
| 55 | ||
| 56 | ||
| 57 | ||
| 58 | ||
| 59 | /** | |
| 60 | * | |
| 61 | * Reads the input stream, one line at a time. Starting at an | |
| 62 | * offset, reads bytes into an array, until it reads a certain number | |
| 63 | * of bytes or reaches a newline character, which it reads into the | |
| 64 | * array as well. | |
| 65 | * | |
| 66 | * <p>This method returns -1 if it reaches the end of the input | |
| 67 | * stream before reading the maximum number of bytes. | |
| 68 | * | |
| 69 | * | |
| 70 | * | |
| 71 | * @param b an array of bytes into which data is read | |
| 72 | * | |
| 73 | * @param off an integer specifying the character at which | |
| 74 | * this method begins reading | |
| 75 | * | |
| 76 | * @param len an integer specifying the maximum number of | |
| 77 | * bytes to read | |
| 78 | * | |
| 79 | * @return an integer specifying the actual number of bytes | |
| 80 | * read, or -1 if the end of the stream is reached | |
| 81 | * | |
| 82 | * @exception IOException if an input or output exception has occurred | |
| 83 | * | |
| 84 | */ | |
| 85 | ||
| 86 | 0 | public int readLine(byte[] b, int off, int len) throws IOException { |
| 87 | ||
| 88 | 0 | if (len <= 0) { |
| 89 | 0 | return 0; |
| 90 | } | |
| 91 | 0 | int count = 0, c; |
| 92 | ||
| 93 | 0 | while ((c = read()) != -1) { |
| 94 | 0 | b[off++] = (byte)c; |
| 95 | 0 | count++; |
| 96 | 0 | if (c == '\n' || count == len) { |
| 97 | 0 | break; |
| 98 | } | |
| 99 | } | |
| 100 | 0 | return count > 0 ? count : -1; |
| 101 | } | |
| 102 | } | |
| 103 | ||
| 104 | ||
| 105 |
|
||||||||||
