aboutsummaryrefslogtreecommitdiff
path: root/src/com/sun/org/apache/xerces/internal/util/HTTPInputSource.java
blob: bdd0750d0faaf041feb6979e6f5714fcffdd3a23 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
/*
 * reserved comment block
 * DO NOT REMOVE OR ALTER!
 */
/*
 * Copyright 2004,2005 The Apache Software Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.sun.org.apache.xerces.internal.util;

import java.io.InputStream;
import java.io.Reader;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import com.sun.org.apache.xerces.internal.xni.XMLResourceIdentifier;
import com.sun.org.apache.xerces.internal.xni.parser.XMLInputSource;

/**
 * This class represents an input source for an XML resource
 * retrievable over HTTP. In addition to the properties
 * provided by an <code>XMLInputSource</code> an HTTP input
 * source also has HTTP request properties and a preference
 * whether HTTP redirects will be followed. Note that these
 * properties will only be used if reading this input source
 * will induce an HTTP connection.
 *
 * @author Michael Glavassevich, IBM
 *
 */
public final class HTTPInputSource extends XMLInputSource {

    //
    // Data
    //

    /** Preference for whether HTTP redirects should be followed. **/
    protected boolean fFollowRedirects = true;

    /** HTTP request properties. **/
    protected Map<String, String> fHTTPRequestProperties = new HashMap<>();

    //
    // Constructors
    //

    /**
     * Constructs an input source from just the public and system
     * identifiers, leaving resolution of the entity and opening of
     * the input stream up to the caller.
     *
     * @param publicId     The public identifier, if known.
     * @param systemId     The system identifier. This value should
     *                     always be set, if possible, and can be
     *                     relative or absolute. If the system identifier
     *                     is relative, then the base system identifier
     *                     should be set.
     * @param baseSystemId The base system identifier. This value should
     *                     always be set to the fully expanded URI of the
     *                     base system identifier, if possible.
     */
    public HTTPInputSource(String publicId, String systemId, String baseSystemId) {
        super(publicId, systemId, baseSystemId);
    } // <init>(String,String,String)

    /**
     * Constructs an input source from a XMLResourceIdentifier
     * object, leaving resolution of the entity and opening of
     * the input stream up to the caller.
     *
     * @param resourceIdentifier the XMLResourceIdentifier containing the information
     */
    public HTTPInputSource(XMLResourceIdentifier resourceIdentifier) {
        super(resourceIdentifier);
    } // <init>(XMLResourceIdentifier)

    /**
     * Constructs an input source from a byte stream.
     *
     * @param publicId     The public identifier, if known.
     * @param systemId     The system identifier. This value should
     *                     always be set, if possible, and can be
     *                     relative or absolute. If the system identifier
     *                     is relative, then the base system identifier
     *                     should be set.
     * @param baseSystemId The base system identifier. This value should
     *                     always be set to the fully expanded URI of the
     *                     base system identifier, if possible.
     * @param byteStream   The byte stream.
     * @param encoding     The encoding of the byte stream, if known.
     */
    public HTTPInputSource(String publicId, String systemId,
            String baseSystemId, InputStream byteStream, String encoding) {
        super(publicId, systemId, baseSystemId, byteStream, encoding);
    } // <init>(String,String,String,InputStream,String)

    /**
     * Constructs an input source from a character stream.
     *
     * @param publicId     The public identifier, if known.
     * @param systemId     The system identifier. This value should
     *                     always be set, if possible, and can be
     *                     relative or absolute. If the system identifier
     *                     is relative, then the base system identifier
     *                     should be set.
     * @param baseSystemId The base system identifier. This value should
     *                     always be set to the fully expanded URI of the
     *                     base system identifier, if possible.
     * @param charStream   The character stream.
     * @param encoding     The original encoding of the byte stream
     *                     used by the reader, if known.
     */
    public HTTPInputSource(String publicId, String systemId,
            String baseSystemId, Reader charStream, String encoding) {
        super(publicId, systemId, baseSystemId, charStream, encoding);
    } // <init>(String,String,String,Reader,String)

    //
    // Public methods
    //

    /**
     * Returns the preference whether HTTP redirects should
     * be followed. By default HTTP redirects will be followed.
     */
    public boolean getFollowHTTPRedirects() {
        return fFollowRedirects;
    } // getFollowHTTPRedirects():boolean


    /**
     * Sets the preference whether HTTP redirects should
     * be followed. By default HTTP redirects will be followed.
     */
    public void setFollowHTTPRedirects(boolean followRedirects) {
        fFollowRedirects = followRedirects;
    } // setFollowHTTPRedirects(boolean)

    /**
     * Returns the value of the request property
     * associated with the given property name.
     *
     * @param key the name of the request property
     * @return the value of the request property or
     * <code>null</code> if this property has not
     * been set
     */
    public String getHTTPRequestProperty(String key) {
        return fHTTPRequestProperties.get(key);
    } // getHTTPRequestProperty(String):String

    /**
     * Returns an iterator for the request properties this
     * input source contains. Each object returned by the
     * iterator is an instance of <code>java.util.Map.Entry</code>
     * where each key and value are a pair of strings corresponding
     * to the name and value of a request property.
     *
     * @return an iterator for the request properties this
     * input source contains
     */
    public Iterator<Map.Entry<String, String>> getHTTPRequestProperties() {
        return fHTTPRequestProperties.entrySet().iterator();
    } // getHTTPRequestProperties():Iterator

    /**
     * Sets the value of the request property
     * associated with the given property name.
     *
     * @param key the name of the request property
     * @param value the value of the request property
     */
    public void setHTTPRequestProperty(String key, String value) {
        if (value != null) {
            fHTTPRequestProperties.put(key, value);
        }
        else {
            fHTTPRequestProperties.remove(key);
        }
    } // setHTTPRequestProperty(String,String)

} // class HTTPInputSource