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16 package org.apache.cocoon.components;
17
18 import org.apache.avalon.framework.component.ComponentManager;
19 import org.apache.cocoon.Processor;
20 import org.apache.cocoon.environment.Environment;
21 import org.apache.cocoon.xml.XMLConsumer;
22
23 import org.apache.commons.collections.ArrayStack;
24 import org.xml.sax.Attributes  ;
25 import org.xml.sax.Locator ;
26 import org.xml.sax.SAXException ;
27
28
36 final class EnvironmentStack extends ArrayStack
37 implements Cloneable {
38
39 int offset;
40
41 int getOffset() {
42 return this.offset;
43 }
44
45 void setOffset(int value) {
46 this.offset = value;
47 }
48
49 Item getCurrent() {
50 return (Item)this.get(offset);
51 }
52
53 public Object clone() {
54 EnvironmentStack old = (EnvironmentStack) super.clone();
55 old.offset = offset;
56 return old;
57 }
58
59 XMLConsumer getEnvironmentAwareConsumerWrapper(XMLConsumer consumer,
60 int oldOffset) {
61 return new EnvironmentChanger(consumer, this, oldOffset, this.offset);
62 }
63
64 static final class Item {
65 public final Environment env;
66 public final Processor processor;
67 public final ComponentManager manager;
68 public final int offset;
69
70 public Item(Environment env, Processor processor, ComponentManager manager, int offset) {
71 this.env = env;
72 this.processor = processor;
73 this.manager = manager;
74 this.offset = offset;
75 }
76 }
77 }
78
79
80
88 final class EnvironmentChanger implements XMLConsumer {
89
90 final XMLConsumer consumer;
91 final EnvironmentStack stack;
92 final int oldOffset;
93 final int newOffset;
94
95 EnvironmentChanger(XMLConsumer consumer, EnvironmentStack es,
96 int oldOffset, int newOffset) {
97 this.consumer = consumer;
98 this.stack = es;
99 this.oldOffset = oldOffset;
100 this.newOffset = newOffset;
101 }
102
103 public void setDocumentLocator(Locator locator) {
104 this.stack.setOffset(this.oldOffset);
105 this.consumer.setDocumentLocator(locator);
106 this.stack.setOffset(this.newOffset);
107 }
108
109 public void startDocument()
110 throws SAXException {
111 this.stack.setOffset(this.oldOffset);
112 this.consumer.startDocument();
113 this.stack.setOffset(this.newOffset);
114 }
115
116 public void endDocument()
117 throws SAXException {
118 this.stack.setOffset(this.oldOffset);
119 this.consumer.endDocument();
120 this.stack.setOffset(this.newOffset);
121 }
122
123 public void startPrefixMapping(String prefix, String uri)
124 throws SAXException {
125 this.stack.setOffset(this.oldOffset);
126 this.consumer.startPrefixMapping(prefix, uri);
127 this.stack.setOffset(this.newOffset);
128 }
129
130 public void endPrefixMapping(String prefix)
131 throws SAXException {
132 this.stack.setOffset(this.oldOffset);
133 this.consumer.endPrefixMapping(prefix);
134 this.stack.setOffset(this.newOffset);
135 }
136
137 public void startElement(String uri, String loc, String raw, Attributes a)
138 throws SAXException {
139 this.stack.setOffset(this.oldOffset);
140 this.consumer.startElement(uri, loc, raw, a);
141 this.stack.setOffset(this.newOffset);
142 }
143
144
145 public void endElement(String uri, String loc, String raw)
146 throws SAXException {
147 this.stack.setOffset(this.oldOffset);
148 this.consumer.endElement(uri, loc, raw);
149 this.stack.setOffset(this.newOffset);
150 }
151
152 public void characters(char c[], int start, int len)
153 throws SAXException {
154 this.stack.setOffset(this.oldOffset);
155 this.consumer.characters(c, start, len);
156 this.stack.setOffset(this.newOffset);
157 }
158
159 public void ignorableWhitespace(char c[], int start, int len)
160 throws SAXException {
161 this.stack.setOffset(this.oldOffset);
162 this.consumer.ignorableWhitespace(c, start, len);
163 this.stack.setOffset(this.newOffset);
164 }
165
166 public void processingInstruction(String target, String data)
167 throws SAXException {
168 this.stack.setOffset(this.oldOffset);
169 this.consumer.processingInstruction(target, data);
170 this.stack.setOffset(this.newOffset);
171 }
172
173 public void skippedEntity(String name)
174 throws SAXException {
175 this.stack.setOffset(this.oldOffset);
176 this.consumer.skippedEntity(name);
177 this.stack.setOffset(this.newOffset);
178 }
179
180 public void startDTD(String name, String publicId, String systemId)
181 throws SAXException {
182 this.stack.setOffset(this.oldOffset);
183 this.consumer.startDTD(name, publicId, systemId);
184 this.stack.setOffset(this.newOffset);
185 }
186
187 public void endDTD()
188 throws SAXException {
189 this.stack.setOffset(this.oldOffset);
190 this.consumer.endDTD();
191 this.stack.setOffset(this.newOffset);
192 }
193
194 public void startEntity(String name)
195 throws SAXException {
196 this.stack.setOffset(this.oldOffset);
197 this.consumer.startEntity(name);
198 this.stack.setOffset(this.newOffset);
199 }
200
201 public void endEntity(String name)
202 throws SAXException {
203 this.stack.setOffset(this.oldOffset);
204 this.consumer.endEntity(name);
205 this.stack.setOffset(this.newOffset);
206 }
207
208 public void startCDATA()
209 throws SAXException {
210 this.stack.setOffset(this.oldOffset);
211 this.consumer.startCDATA();
212 this.stack.setOffset(this.newOffset);
213 }
214
215 public void endCDATA()
216 throws SAXException {
217 this.stack.setOffset(this.oldOffset);
218 this.consumer.endCDATA();
219 this.stack.setOffset(this.newOffset);
220 }
221
222 public void comment(char ch[], int start, int len)
223 throws SAXException {
224 this.stack.setOffset(this.oldOffset);
225 this.consumer.comment(ch, start, len);
226 this.stack.setOffset(this.newOffset);
227 }
228 }
229 |
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