1 /*
2  * $HeadURL:https://svn.apache.org/repos/asf/jakarta/httpcomponents/httpcore/trunk/module-main/src/main/java/org/apache/http/message/ParserCursor.java $
3  * $Revision:589325 $
4  * $Date:2007-10-28 11:37:56 +0100 (Sun, 28 Oct 2007) $
5  *
6  * ====================================================================
7  * Licensed to the Apache Software Foundation (ASF) under one
8  * or more contributor license agreements.  See the NOTICE file
9  * distributed with this work for additional information
10  * regarding copyright ownership.  The ASF licenses this file
11  * to you under the Apache License, Version 2.0 (the
12  * "License"); you may not use this file except in compliance
13  * with the License.  You may obtain a copy of the License at
14  *
15  *   http://www.apache.org/licenses/LICENSE-2.0
16  *
17  * Unless required by applicable law or agreed to in writing,
18  * software distributed under the License is distributed on an
19  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
20  * KIND, either express or implied.  See the License for the
21  * specific language governing permissions and limitations
22  * under the License.
23  * ====================================================================
24  *
25  * This software consists of voluntary contributions made by many
26  * individuals on behalf of the Apache Software Foundation.  For more
27  * information on the Apache Software Foundation, please see
28  * <http://www.apache.org/>.
29  *
30  */
31 
32 package org.apache.http.message;
33 
34 import org.apache.http.util.CharArrayBuffer;
35 
36 /**
37  * This class represents a context of a parsing operation:
38  * <ul>
39  *  <li>the current position the parsing operation is expected to start at</li>
40  *  <li>the bounds limiting the scope of the parsing operation</li>
41  * </ul>
42  *
43  * @author <a href="mailto:oleg at ural.com">Oleg Kalnichevski</a>
44  *
45  * @deprecated Please use {@link java.net.URL#openConnection} instead.
46  *     Please visit <a href="http://android-developers.blogspot.com/2011/09/androids-http-clients.html">this webpage</a>
47  *     for further details.
48  */
49 @Deprecated
50 public class ParserCursor {
51 
52     private final int lowerBound;
53     private final int upperBound;
54     private int pos;
55 
ParserCursor(int lowerBound, int upperBound)56     public ParserCursor(int lowerBound, int upperBound) {
57         super();
58         if (lowerBound < 0) {
59             throw new IndexOutOfBoundsException("Lower bound cannot be negative");
60         }
61         if (lowerBound > upperBound) {
62             throw new IndexOutOfBoundsException("Lower bound cannot be greater then upper bound");
63         }
64         this.lowerBound = lowerBound;
65         this.upperBound = upperBound;
66         this.pos = lowerBound;
67     }
68 
getLowerBound()69     public int getLowerBound() {
70         return this.lowerBound;
71     }
72 
getUpperBound()73     public int getUpperBound() {
74         return this.upperBound;
75     }
76 
getPos()77     public int getPos() {
78         return this.pos;
79     }
80 
updatePos(int pos)81     public void updatePos(int pos) {
82         if (pos < this.lowerBound) {
83             throw new IndexOutOfBoundsException();
84         }
85         if (pos > this.upperBound) {
86             throw new IndexOutOfBoundsException();
87         }
88         this.pos = pos;
89     }
90 
atEnd()91     public boolean atEnd() {
92         return this.pos >= this.upperBound;
93     }
94 
toString()95     public String toString() {
96         CharArrayBuffer buffer = new CharArrayBuffer(16);
97         buffer.append('[');
98         buffer.append(Integer.toString(this.lowerBound));
99         buffer.append('>');
100         buffer.append(Integer.toString(this.pos));
101         buffer.append('>');
102         buffer.append(Integer.toString(this.upperBound));
103         buffer.append(']');
104         return buffer.toString();
105     }
106 
107 }
108