Revision 3328
Added by Jing Tao almost 17 years ago
| src/edu/ucsb/nceas/metacat/QueryGroup.java | ||
|---|---|---|
| 46 | 46 |
private int countPercentageSearchItem = 0; |
| 47 | 47 |
private Vector queryTermsWithSameValue = null;//this two dimension vectors. |
| 48 | 48 |
//will hold query terms which has same search value. |
| 49 |
private Vector queryTermsInPathIndex = null; //this vector holds query terms without same value |
|
| 50 |
// and search path is in path index. |
|
| 49 | 51 |
private Vector queryTerms = null;//this vector only holds query terms without same search value. |
| 52 |
// and search path is NOT in path index. |
|
| 50 | 53 |
private Vector queryGroupsChildren = null; |
| 51 | 54 |
private static Logger logMetacat = Logger.getLogger(QueryGroup.class); |
| 52 | 55 |
private static String UNION = "UNION"; |
| ... | ... | |
| 61 | 64 |
this.operator = operator; |
| 62 | 65 |
children = new Vector(); |
| 63 | 66 |
queryTermsWithSameValue = new Vector(); |
| 67 |
queryTermsInPathIndex = new Vector(); |
|
| 64 | 68 |
queryTerms = new Vector(); |
| 65 | 69 |
queryGroupsChildren = new Vector(); |
| 66 | 70 |
} |
| ... | ... | |
| 107 | 111 |
|
| 108 | 112 |
boolean first = true; |
| 109 | 113 |
|
| 110 |
if (!queryTermsWithSameValue.isEmpty()) |
|
| 114 |
if (!queryTermsWithSameValue.isEmpty() || queryTermsInPathIndex.isEmpty())
|
|
| 111 | 115 |
{
|
| 112 |
String sameValueQueryString = printSQLStringWithSameSearchValue();
|
|
| 113 |
queryString.append(sameValueQueryString);
|
|
| 116 |
String pathIndexQueryString = printSQLStringInPathIndex();
|
|
| 117 |
queryString.append(pathIndexQueryString);
|
|
| 114 | 118 |
if (queryString != null) |
| 115 | 119 |
{
|
| 116 | 120 |
first = false; |
| ... | ... | |
| 176 | 180 |
|
| 177 | 181 |
|
| 178 | 182 |
/* |
| 179 |
* If every query term in a queryGroup share a search value, we should |
|
| 180 |
* use a new query to replace the original query term query in order to |
|
| 181 |
* improve performance |
|
| 183 |
* If every query term in a queryGroup share a search value and search path |
|
| 184 |
* is in xml_path_index, we should use a new query to replace the original query term query in order to |
|
| 185 |
* improve performance. Also if even the term doesn't share any value with other term |
|
| 186 |
* we still use "OR" to replace UNION action (we only handle union operator in the query group). |
|
| 187 |
* |
|
| 182 | 188 |
*/ |
| 183 |
private String printSQLStringWithSameSearchValue()
|
|
| 189 |
private String printSQLStringInPathIndex()
|
|
| 184 | 190 |
{
|
| 185 | 191 |
String sql =""; |
| 186 | 192 |
String value =""; |
| 187 | 193 |
StringBuffer sqlBuff = new StringBuffer(); |
| 188 | 194 |
Vector pathVector = new Vector(); |
| 189 | 195 |
int index =0; |
| 190 |
if (queryTermsWithSameValue != null) |
|
| 196 |
if (queryTermsWithSameValue != null && queryTermsInPathIndex != null)
|
|
| 191 | 197 |
{
|
| 192 |
boolean firstVector = true; |
|
| 193 |
for (int j=0; j<queryTermsWithSameValue.size(); j++) |
|
| 198 |
|
|
| 199 |
sqlBuff.append("SELECT DISTINCT docid FROM xml_path_index WHERE ");
|
|
| 200 |
if (!queryTermsWithSameValue.isEmpty()) |
|
| 194 | 201 |
{
|
| 195 |
Vector queryTermVector = (Vector)queryTermsWithSameValue.elementAt(j); |
|
| 196 |
QueryTerm term1 = (QueryTerm)queryTermVector.elementAt(0); |
|
| 197 |
value = term1.getValue(); |
|
| 198 |
boolean first = true; |
|
| 199 |
if (firstVector) |
|
| 200 |
{
|
|
| 201 |
firstVector = false; |
|
| 202 |
} |
|
| 203 |
else |
|
| 204 |
{
|
|
| 205 |
sqlBuff.append(" "+operator+" ");
|
|
| 206 |
} |
|
| 207 |
sqlBuff.append("SELECT DISTINCT docid FROM xml_path_index WHERE UPPER(nodedata) LIKE '%");
|
|
| 208 |
if (value != null) |
|
| 209 |
{
|
|
| 210 |
sqlBuff.append(value.toUpperCase()); |
|
| 211 |
} |
|
| 212 |
else |
|
| 213 |
{
|
|
| 214 |
sqlBuff.append(value); |
|
| 215 |
} |
|
| 216 |
sqlBuff.append("%' AND path IN (");
|
|
| 217 |
//gets every path in query term object |
|
| 218 |
for (int i=0; i<queryTermVector.size(); i++) |
|
| 202 |
boolean firstVector = true; |
|
| 203 |
for (int j=0; j<queryTermsWithSameValue.size(); j++) |
|
| 219 | 204 |
{
|
| 220 |
QueryTerm term = (QueryTerm)queryTermVector.elementAt(i); |
|
| 221 |
value = term.getValue(); |
|
| 222 |
String path = term.getPathExpression(); |
|
| 223 |
if (path != null && !path.equals(""))
|
|
| 224 |
{
|
|
| 225 |
if (first) |
|
| 226 |
{
|
|
| 227 |
first = false; |
|
| 228 |
sqlBuff.append("'");
|
|
| 229 |
sqlBuff.append(path); |
|
| 230 |
sqlBuff.append("'");
|
|
| 231 |
|
|
| 232 |
} |
|
| 233 |
else |
|
| 234 |
{
|
|
| 235 |
sqlBuff.append(",'");
|
|
| 236 |
sqlBuff.append(path); |
|
| 237 |
sqlBuff.append("'");
|
|
| 238 |
} |
|
| 239 |
index++; |
|
| 240 |
if (value != null && (value.equals("%") || value.equals("%%%")))
|
|
| 241 |
{
|
|
| 242 |
countPercentageSearchItem++; |
|
| 243 |
} |
|
| 244 |
} |
|
| 245 |
} |
|
| 246 |
sqlBuff.append(")");
|
|
| 247 |
|
|
| 248 |
} |
|
| 205 |
Vector queryTermVector = (Vector)queryTermsWithSameValue.elementAt(j); |
|
| 206 |
QueryTerm term1 = (QueryTerm)queryTermVector.elementAt(0); |
|
| 207 |
value = term1.getValue(); |
|
| 208 |
boolean first = true; |
|
| 209 |
if (firstVector) |
|
| 210 |
{
|
|
| 211 |
firstVector = false; |
|
| 212 |
} |
|
| 213 |
else |
|
| 214 |
{
|
|
| 215 |
sqlBuff.append(" "+"OR"+" ");
|
|
| 216 |
} |
|
| 217 |
sqlBuff.append(" (UPPER(nodedata) LIKE '%");
|
|
| 218 |
if (value != null) |
|
| 219 |
{
|
|
| 220 |
sqlBuff.append(value.toUpperCase()); |
|
| 221 |
} |
|
| 222 |
else |
|
| 223 |
{
|
|
| 224 |
sqlBuff.append(value); |
|
| 225 |
} |
|
| 226 |
sqlBuff.append("%' AND path IN (");
|
|
| 227 |
//gets every path in query term object |
|
| 228 |
for (int i=0; i<queryTermVector.size(); i++) |
|
| 229 |
{
|
|
| 230 |
QueryTerm term = (QueryTerm)queryTermVector.elementAt(i); |
|
| 231 |
value = term.getValue(); |
|
| 232 |
String path = term.getPathExpression(); |
|
| 233 |
if (path != null && !path.equals(""))
|
|
| 234 |
{
|
|
| 235 |
if (first) |
|
| 236 |
{
|
|
| 237 |
first = false; |
|
| 238 |
sqlBuff.append("'");
|
|
| 239 |
sqlBuff.append(path); |
|
| 240 |
sqlBuff.append("'");
|
|
| 241 |
|
|
| 242 |
} |
|
| 243 |
else |
|
| 244 |
{
|
|
| 245 |
sqlBuff.append(",'");
|
|
| 246 |
sqlBuff.append(path); |
|
| 247 |
sqlBuff.append("'");
|
|
| 248 |
} |
|
| 249 |
index++; |
|
| 250 |
if (value != null && (value.equals("%") || value.equals("%%%")))
|
|
| 251 |
{
|
|
| 252 |
countPercentageSearchItem++; |
|
| 253 |
} |
|
| 254 |
} |
|
| 255 |
} |
|
| 256 |
sqlBuff.append("))");
|
|
| 257 |
|
|
| 258 |
} |
|
| 259 |
} |
|
| 260 |
if (!queryTermsInPathIndex.isEmpty()) |
|
| 261 |
{
|
|
| 262 |
for (int j=0; j<queryTermsInPathIndex.size(); j++) |
|
| 263 |
{
|
|
| 264 |
QueryTerm term = (QueryTerm)queryTermsInPathIndex.elementAt(j); |
|
| 265 |
if (term != null) |
|
| 266 |
{
|
|
| 267 |
term.setInUnionGroup(true); |
|
| 268 |
if (index > 0) |
|
| 269 |
{
|
|
| 270 |
sqlBuff.append(" "+"OR"+" ");
|
|
| 271 |
} |
|
| 272 |
sqlBuff.append("(");
|
|
| 273 |
sqlBuff.append(term.printSQL(true)); |
|
| 274 |
sqlBuff.append(")");
|
|
| 275 |
index++; |
|
| 276 |
} |
|
| 277 |
} |
|
| 278 |
} |
|
| 249 | 279 |
} |
| 250 | 280 |
if (index >0) |
| 251 | 281 |
{
|
| ... | ... | |
| 295 | 325 |
MetaCatUtil.pathsForIndexing.contains(newTerm.getPathExpression())) |
| 296 | 326 |
{
|
| 297 | 327 |
//System.out.println("in only union branch in handle new query term");
|
| 298 |
for (int i=0; i<queryTerms.size(); i++) |
|
| 328 |
for (int i=0; i<queryTermsInPathIndex.size(); i++)
|
|
| 299 | 329 |
{
|
| 300 |
QueryTerm term = (QueryTerm)queryTerms.elementAt(i); |
|
| 330 |
QueryTerm term = (QueryTerm)queryTermsInPathIndex.elementAt(i);
|
|
| 301 | 331 |
if (term != null && term.hasSameSearchValue(newTerm)) |
| 302 | 332 |
{
|
| 303 | 333 |
//System.out.println("1Move a query term and add a new query term into search value in handle new query term");
|
| ... | ... | |
| 306 | 336 |
newSameValueVector.add(term); |
| 307 | 337 |
newSameValueVector.addElement(newTerm); |
| 308 | 338 |
queryTermsWithSameValue.add(newSameValueVector); |
| 309 |
queryTerms.remove(i); |
|
| 339 |
queryTermsInPathIndex.remove(i);
|
|
| 310 | 340 |
return; |
| 311 | 341 |
} |
| 312 | 342 |
} |
| ... | ... | |
| 324 | 354 |
return; |
| 325 | 355 |
} |
| 326 | 356 |
} |
| 357 |
//nothing found, but the search path is still in xml_path_index, |
|
| 358 |
// save it into queryTermsInPathIndex vector |
|
| 359 |
queryTermsInPathIndex.add(newTerm); |
|
| 360 |
return; |
|
| 327 | 361 |
} |
| 328 |
// both queryTerms and queryTermsWithSameValue don't have the search value, |
|
| 329 |
// add this newTerm to queryTerms |
|
| 362 |
|
|
| 363 |
// add this newTerm to queryTerms since we couldn't find it in xml_path_index
|
|
| 330 | 364 |
queryTerms.add(newTerm); |
| 331 | 365 |
} |
| 332 | 366 |
|
Also available in: Unified diff
Add code to handle none-same value query term.