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57
58 package org.enhydra.apache.xerces.utils;
59
60
65 public class NamespacesScope {
66
69 public interface NamespacesHandler {
70
77 public void startNamespaceDeclScope(int prefix, int uri) throws Exception  ;
78
84 public void endNamespaceDeclScope(int prefix) throws Exception ;
85 }
86 public NamespacesScope() {
87 this(new NamespacesHandler() {
88 public void startNamespaceDeclScope(int prefix, int uri) throws Exception {
89 }
90 public void endNamespaceDeclScope(int prefix) throws Exception {
91 }
92 });
93 }
94 public NamespacesScope(NamespacesHandler handler) {
95 fHandler = handler;
96 fNamespaceMappings[0] = new int[9];
97 fNamespaceMappings[0][0] = 1;
98 }
99 public NamespacesScope(NamespacesHandler handler, int elemDepth, int[][] map) {
100 fHandler = handler;
101 fElementDepth = elemDepth;
102 if (map == null) {
103 fNamespaceMappings = new int[8][];
104 return;
105 }
106 fNamespaceMappings = new int[map.length][];
107 for(int i = 0; i <= fElementDepth; i++) {
108 if(map[i]!= null) {
109 fNamespaceMappings[i] = new int[map[i].length];
110 System.arraycopy(map[i], 0, fNamespaceMappings[i], 0, map[i].length);
111 }
112 }
113 }
114
120 public void setNamespaceForPrefix(int prefix, int namespace) throws Exception {
121 int offset = fNamespaceMappings[fElementDepth][0];
122 if (offset == fNamespaceMappings[fElementDepth].length) {
123 int[] newMappings = new int[offset + 8];
124 System.arraycopy(fNamespaceMappings[fElementDepth], 0, newMappings, 0, offset);
125 fNamespaceMappings[fElementDepth] = newMappings;
126 }
127 fNamespaceMappings[fElementDepth][offset++] = prefix;
128 fNamespaceMappings[fElementDepth][offset++] = namespace;
129 fNamespaceMappings[fElementDepth][0] = offset;
130 if (fElementDepth > 0)
131 fHandler.startNamespaceDeclScope(prefix, namespace);
132 }
133
138 public int getNamespaceForPrefix(int prefix) {
139 for (int depth = fElementDepth; depth >= 0; depth--) {
140 int offset = fNamespaceMappings[depth][0];
141 for (int i = 1; i < offset; i += 2) {
142 if (prefix == fNamespaceMappings[depth][i]) {
143 return fNamespaceMappings[depth][i+1];
144 }
145 }
146 }
147 return StringPool.EMPTY_STRING;
148 }
149
152 public void increaseDepth() throws Exception {
153 fElementDepth++;
154 if (fElementDepth == fNamespaceMappings.length) {
155 int[][] newMappings = new int[fElementDepth + 8][];
156 System.arraycopy(fNamespaceMappings, 0, newMappings, 0, fElementDepth);
157 fNamespaceMappings = newMappings;
158 }
159 if (fNamespaceMappings[fElementDepth] == null)
160 fNamespaceMappings[fElementDepth] = new int[9];
161 fNamespaceMappings[fElementDepth][0] = 1;
162 }
163
166 public void decreaseDepth() throws Exception {
167 if (fElementDepth > 0) {
168 int offset = fNamespaceMappings[fElementDepth][0];
169 while (offset > 1) {
170 offset -= 2;
171 fHandler.endNamespaceDeclScope(fNamespaceMappings[fElementDepth][offset]);
172 }
173 }
174 fElementDepth--;
175 }
176
177 public Object clone() {
179 return new NamespacesScope(fHandler, fElementDepth, fNamespaceMappings);
180 } private NamespacesHandler fHandler = null;
182 private int fElementDepth = 0;
183 private int[][] fNamespaceMappings = new int[8][];
184 }
185 |
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