|
1 /* |
|
2 * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved. |
|
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
|
4 * |
|
5 * This code is free software; you can redistribute it and/or modify it |
|
6 * under the terms of the GNU General Public License version 2 only, as |
|
7 * published by the Free Software Foundation. Oracle designates this |
|
8 * particular file as subject to the "Classpath" exception as provided |
|
9 * by Oracle in the LICENSE file that accompanied this code. |
|
10 * |
|
11 * This code is distributed in the hope that it will be useful, but WITHOUT |
|
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
|
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
|
14 * version 2 for more details (a copy is included in the LICENSE file that |
|
15 * accompanied this code). |
|
16 * |
|
17 * You should have received a copy of the GNU General Public License version |
|
18 * 2 along with this work; if not, write to the Free Software Foundation, |
|
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
|
20 * |
|
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
22 * or visit www.oracle.com if you need additional information or have any |
|
23 * questions. |
|
24 */ |
|
25 |
|
26 package com.sun.xml.internal.stream.buffer; |
|
27 |
|
28 /** |
|
29 * Base class for classes that creates {@link MutableXMLStreamBuffer} |
|
30 * and from infoset in API-specific form. |
|
31 */ |
|
32 public class AbstractCreator extends AbstractCreatorProcessor { |
|
33 |
|
34 protected MutableXMLStreamBuffer _buffer; |
|
35 |
|
36 public void setXMLStreamBuffer(MutableXMLStreamBuffer buffer) { |
|
37 if (buffer == null) { |
|
38 throw new NullPointerException("buffer cannot be null"); |
|
39 } |
|
40 setBuffer(buffer); |
|
41 } |
|
42 |
|
43 public MutableXMLStreamBuffer getXMLStreamBuffer() { |
|
44 return _buffer; |
|
45 } |
|
46 |
|
47 |
|
48 protected final void createBuffer() { |
|
49 setBuffer(new MutableXMLStreamBuffer()); |
|
50 } |
|
51 |
|
52 /** |
|
53 * Should be called whenever a new tree is stored on the buffer. |
|
54 */ |
|
55 protected final void increaseTreeCount() { |
|
56 _buffer.treeCount++; |
|
57 } |
|
58 |
|
59 protected final void setBuffer(MutableXMLStreamBuffer buffer) { |
|
60 _buffer = buffer; |
|
61 |
|
62 _currentStructureFragment = _buffer.getStructure(); |
|
63 _structure = _currentStructureFragment.getArray(); |
|
64 _structurePtr = 0; |
|
65 |
|
66 _currentStructureStringFragment = _buffer.getStructureStrings(); |
|
67 _structureStrings = _currentStructureStringFragment.getArray(); |
|
68 _structureStringsPtr = 0; |
|
69 |
|
70 _currentContentCharactersBufferFragment = _buffer.getContentCharactersBuffer(); |
|
71 _contentCharactersBuffer = _currentContentCharactersBufferFragment.getArray(); |
|
72 _contentCharactersBufferPtr = 0; |
|
73 |
|
74 _currentContentObjectFragment = _buffer.getContentObjects(); |
|
75 _contentObjects = _currentContentObjectFragment.getArray(); |
|
76 _contentObjectsPtr = 0; |
|
77 } |
|
78 |
|
79 protected final void setHasInternedStrings(boolean hasInternedStrings) { |
|
80 _buffer.setHasInternedStrings(hasInternedStrings); |
|
81 } |
|
82 |
|
83 protected final void storeStructure(int b) { |
|
84 _structure[_structurePtr++] = (byte)b; |
|
85 if (_structurePtr == _structure.length) { |
|
86 resizeStructure(); |
|
87 } |
|
88 } |
|
89 |
|
90 protected final void resizeStructure() { |
|
91 _structurePtr = 0; |
|
92 if (_currentStructureFragment.getNext() != null) { |
|
93 _currentStructureFragment = _currentStructureFragment.getNext(); |
|
94 _structure = _currentStructureFragment.getArray(); |
|
95 } else { |
|
96 _structure = new byte[_structure.length]; |
|
97 _currentStructureFragment = new FragmentedArray(_structure, _currentStructureFragment); |
|
98 } |
|
99 } |
|
100 |
|
101 protected final void storeStructureString(String s) { |
|
102 _structureStrings[_structureStringsPtr++] = s; |
|
103 if (_structureStringsPtr == _structureStrings.length) { |
|
104 resizeStructureStrings(); |
|
105 } |
|
106 } |
|
107 |
|
108 protected final void resizeStructureStrings() { |
|
109 _structureStringsPtr = 0; |
|
110 if (_currentStructureStringFragment.getNext() != null) { |
|
111 _currentStructureStringFragment = _currentStructureStringFragment.getNext(); |
|
112 _structureStrings = _currentStructureStringFragment.getArray(); |
|
113 } else { |
|
114 _structureStrings = new String[_structureStrings.length]; |
|
115 _currentStructureStringFragment = new FragmentedArray(_structureStrings, _currentStructureStringFragment); |
|
116 } |
|
117 } |
|
118 |
|
119 protected final void storeContentString(String s) { |
|
120 storeContentObject(s); |
|
121 } |
|
122 |
|
123 protected final void storeContentCharacters(int type, char[] ch, int start, int length) { |
|
124 if (_contentCharactersBufferPtr + length >= _contentCharactersBuffer.length) { |
|
125 if (length >= 512) { |
|
126 storeStructure(type | CONTENT_TYPE_CHAR_ARRAY_COPY); |
|
127 storeContentCharactersCopy(ch, start, length); |
|
128 return; |
|
129 } |
|
130 resizeContentCharacters(); |
|
131 } |
|
132 |
|
133 if (length < CHAR_ARRAY_LENGTH_SMALL_SIZE) { |
|
134 storeStructure(type); |
|
135 storeStructure(length); |
|
136 System.arraycopy(ch, start, _contentCharactersBuffer, _contentCharactersBufferPtr, length); |
|
137 _contentCharactersBufferPtr += length; |
|
138 } else if (length < CHAR_ARRAY_LENGTH_MEDIUM_SIZE) { |
|
139 storeStructure(type | CHAR_ARRAY_LENGTH_MEDIUM); |
|
140 storeStructure(length >> 8); |
|
141 storeStructure(length & 255); |
|
142 System.arraycopy(ch, start, _contentCharactersBuffer, _contentCharactersBufferPtr, length); |
|
143 _contentCharactersBufferPtr += length; |
|
144 } else { |
|
145 storeStructure(type | CONTENT_TYPE_CHAR_ARRAY_COPY); |
|
146 storeContentCharactersCopy(ch, start, length); |
|
147 } |
|
148 } |
|
149 |
|
150 protected final void resizeContentCharacters() { |
|
151 _contentCharactersBufferPtr = 0; |
|
152 if (_currentContentCharactersBufferFragment.getNext() != null) { |
|
153 _currentContentCharactersBufferFragment = _currentContentCharactersBufferFragment.getNext(); |
|
154 _contentCharactersBuffer = _currentContentCharactersBufferFragment.getArray(); |
|
155 } else { |
|
156 _contentCharactersBuffer = new char[_contentCharactersBuffer.length]; |
|
157 _currentContentCharactersBufferFragment = new FragmentedArray(_contentCharactersBuffer, |
|
158 _currentContentCharactersBufferFragment); |
|
159 } |
|
160 } |
|
161 |
|
162 protected final void storeContentCharactersCopy(char[] ch, int start, int length) { |
|
163 char[] copyOfCh = new char[length]; |
|
164 System.arraycopy(ch, start, copyOfCh, 0, length); |
|
165 storeContentObject(copyOfCh); |
|
166 } |
|
167 |
|
168 protected final Object peekAtContentObject() { |
|
169 return _contentObjects[_contentObjectsPtr]; |
|
170 } |
|
171 |
|
172 protected final void storeContentObject(Object s) { |
|
173 _contentObjects[_contentObjectsPtr++] = s; |
|
174 if (_contentObjectsPtr == _contentObjects.length) { |
|
175 resizeContentObjects(); |
|
176 } |
|
177 } |
|
178 |
|
179 protected final void resizeContentObjects() { |
|
180 _contentObjectsPtr = 0; |
|
181 if (_currentContentObjectFragment.getNext() != null) { |
|
182 _currentContentObjectFragment = _currentContentObjectFragment.getNext(); |
|
183 _contentObjects = _currentContentObjectFragment.getArray(); |
|
184 } else { |
|
185 _contentObjects = new Object[_contentObjects.length]; |
|
186 _currentContentObjectFragment = new FragmentedArray(_contentObjects, _currentContentObjectFragment); |
|
187 } |
|
188 } |
|
189 } |