Source Code Cross Referenced for SOIF.java in  » Portal » Open-Portal » soif » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Portal » Open Portal » soif 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *	CONFIDENTIAL AND PROPRIETARY SOURCE CODE OF
003:         *	NETSCAPE COMMUNICATIONS CORPORATION
004:         *
005:         *	Copyright (c) 1996 Netscape Communications Corporation.
006:         *	All Rights Reserved.
007:         *	Use of this Source Code is subject to the terms of the applicable
008:         *	license agreement from Netscape Communications Corporation.
009:         */
010:
011:        package soif;
012:
013:        import util.AltSTokenizer;
014:        import util.ReportError;
015:
016:        /**
017:         * SOIF handling class.
018:         * <p>
019:         * The SOIF class is used as a list,
020:         * where each SOIF statement gets it's own node.
021:         * The first node is a header node
022:         * which has the full SOIF text in it,
023:         * the successor nodes have the variable but don't use it.
024:         * The SOIF list is created by creating the initial SOIF
025:         * instance and passing the SOIF string to it.
026:         * The full SOIF list is then created by running the parser
027:         * methods which iteratively create new SOIF instances (this
028:         * was originally done in a more elegant recursive fashion,
029:         * but that was a performance hog (passing the string).
030:         */
031:        public class SOIF implements  Cloneable {
032:            /**
033:             * The SOIF schemaName.
034:             */
035:            protected String schemaName;
036:
037:            /**
038:             * The SOIF URL.
039:             */
040:            protected String URL;
041:
042:            /**
043:             * The attribute value pairs for this SOIF.
044:             */
045:            public AVPairs list;
046:
047:            /**
048:             * Count of unique attributes: Bob-1, Bob-2, Jim-1 = 2.
049:             * Kept because it's costly to get directly from the
050:             * AVPairs class.
051:             */
052:            private int attributeCount;
053:
054:            /**
055:             * Whether this is a valid SOIF object.
056:             */
057:            protected boolean valid;
058:
059:            /**
060:             * Next SOIF object on list.
061:             */
062:            public SOIF next;
063:
064:            /**
065:             * Constructor.
066:             */
067:            public SOIF() {
068:                schemaName = "";
069:                URL = "";
070:                list = null;
071:                attributeCount = 0;
072:                valid = false;
073:                next = null;
074:            }
075:
076:            /**
077:             * Constructor.
078:             */
079:            public SOIF(String schemaName, String URL) {
080:                this .schemaName = schemaName;
081:                this .URL = URL;
082:                list = null;
083:                attributeCount = 0;
084:                valid = false;
085:                next = null;
086:            }
087:
088:            /**
089:             * Adds a new AVPair to this list.
090:             * @param att the attribute
091:             * @param val the value
092:             */
093:            public void addAVPairs(String att, String val) throws Exception {
094:                if (list == null) {
095:                    attributeCount++;
096:                    list = new AVPairs(att, val);
097:                } else {
098:                    AVPairs avp = new AVPairs(att, val);
099:                    if (!list.attributeNameExists(avp.getAttributeName()))
100:                        attributeCount++;
101:                    else if (!avp.isMV())
102:                        // Not MV - don't allow duplicate
103:                        throw new Exception(Messages.INVALIDSOIF);
104:                    list.insertAfter(avp);
105:                }
106:            }
107:
108:            /**
109:             * Set a value by non-multivalue attribute.
110:             * Ignores case of attribute name.
111:             * @param s the attribute
112:             */
113:            public boolean setValue(String s, String v) {
114:                return list.setValue(s, v);
115:            }
116:
117:            /**
118:             * Set a value by attribute and multivalue index.
119:             * Ignores case of attribute name.
120:             * @param s the attribute
121:             * @param n the index
122:             */
123:            public boolean setValue(String s, int n, String v) {
124:                return list.setValue(s, n, v);
125:            }
126:
127:            /**
128:             * Find a value by non-multivalue attribute.
129:             * Ignores case of attribute name.
130:             * @param s the attribute
131:             */
132:            public String getValue(String s) {
133:                return list.getValue(s, -1);
134:            }
135:
136:            /**
137:             * Find a value by attribute and multivalue index.
138:             * Ignores case of attribute name.
139:             * @param s the attribute
140:             * @param n the index
141:             */
142:            public String getValue(String s, int n) {
143:                return list.getValue(s, n);
144:            }
145:
146:            /**
147:             * Find a values by attribute.  Return an array of strings for
148:             * multiple values for an attribute, e.g., for Bob, return
149:             * values for Bob-1 and Bob-2.
150:             * Ignores case of attribute name.
151:             * @param s the attribute
152:             */
153:            public String[] getValues(String s) {
154:                return list.getValues(s);
155:            }
156:
157:            /**
158:             * Return a unique list of attributes w/out multi value,
159:             * e.g. for Bob-1, Bob-2, Jim-1, return Bob, Jim.
160:             */
161:            public String[] getAttributes() {
162:                return list.getAttributes();
163:            }
164:
165:            /**
166:             * Get number of values for an attribute, e.g. if Bob has
167:             * Bob-1 and Bob-2, the answer is 2.
168:             * Ignores case of attribute name.
169:             * @param s the attribute
170:             */
171:            public int attributeValueCount(String s) {
172:                return list.attributeValueCount(s);
173:            }
174:
175:            /**
176:             * Get a copy of all the AVPairs.
177:             */
178:            public AVPairs getAVPairs() {
179:                return list;
180:            }
181:
182:            /**
183:             * Clone the AVPairs w/ the specified MV.
184:             * @param mv multivalue value
185:             */
186:            public AVPairs getAVPairsByMV(int mv) {
187:                return list.getAVPairsByMV(mv);
188:            }
189:
190:            /**
191:             * Clone the AVPairs w/ the specified attribute.
192:             * @param s attribute
193:             */
194:            public AVPairs getAVPairsByAttribute(String s) {
195:                return list.getAVPairsByAttribute(s);
196:            }
197:
198:            /**
199:             * Unduplicate values on the AVPairs list.
200:             */
201:            public AVPairs unduplicateValues() {
202:                return list.unduplicateValues();
203:            }
204:
205:            /**
206:             * Get the max attribute index (multivalue) from AVPairs list.
207:             */
208:            public int getMaxAttributeIndex() {
209:                return list.getMaxAttributeIndex();
210:            }
211:
212:            /**
213:             * Return the pairs of the list that are not multivalue.
214:             */
215:            public AVPairs getSingleValuePairs() {
216:                return list.getSingleValuePairs();
217:            }
218:
219:            /**
220:             * Return the schemaName.
221:             */
222:            public String getSchemaName() {
223:                return schemaName;
224:            }
225:
226:            /**
227:             * Return the URL.
228:             */
229:            public String getURL() {
230:                return URL;
231:            }
232:
233:            /**
234:             * Number of SOIF nodes in a list.
235:             */
236:            public int count() {
237:                int n = 0;
238:                for (SOIF i = this ; i != null; i = i.next)
239:                    n++;
240:                return n;
241:            }
242:
243:            /**
244:             * Get the number of unique attributes with this SOIF.
245:             */
246:            public int getAttributeCount() {
247:                return attributeCount;
248:            }
249:
250:            /**
251:             * Whether a SOIF node is valid.
252:             */
253:            public boolean isValid() {
254:                return valid;
255:            }
256:
257:            /**
258:             * Print out SOIF.
259:             * @param schemaName schema name
260:             * @param URL URL
261:             * @param a string array of attributes
262:             * @param v string array of values
263:             * @exception IllegalArgumentException If att an val arrays not same size
264:             */
265:            public static String toSOIF(String schemaName, String URL,
266:                    String a[], String v[]) {
267:                if (a.length != v.length)
268:                    throw new IllegalArgumentException("a.length(" + a.length
269:                            + ") != v.length(" + v.length + ")");
270:                StringBuffer sb = new StringBuffer("@" + schemaName + " { "
271:                        + URL + "\n");
272:                for (int i = 0; i < a.length; i = i++)
273:                    sb.append(AVPairs.toSOIF(a[i], v[i]) + "\n");
274:                sb.append("}\n");
275:                return sb.toString();
276:            }
277:
278:            /**
279:             * Return a single SOIF as a string.
280:             * @deprecated Use {@link #toString()}
281:             */
282:            public String toSOIFString() {
283:                return toString();
284:            }
285:
286:            /**
287:             * Return entire SOIF list as a string.
288:             * @deprecated Use {@link #toStringList()}
289:             */
290:            public String toSOIFList() {
291:                return toStringList();
292:            }
293:
294:            /**
295:             * Return a single SOIF as a string.
296:             */
297:            public String toString() {
298:                StringBuffer sb = new StringBuffer("@" + schemaName + " { "
299:                        + URL + "\n");
300:                for (AVPairs i = list; i != null; i = i.next)
301:                    sb.append(i.toSOIF());
302:                sb.append("}\n\n");
303:                return sb.toString();
304:            }
305:
306:            /**
307:             * Return entire SOIF list as a string.
308:             */
309:            public String toStringList() {
310:                StringBuffer sb = new StringBuffer();
311:                for (SOIF i = this; i != null; i = i.next)
312:                    sb.append(i.toString());
313:                return sb.toString();
314:            }
315:
316:        }
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