/**
* Create a new WebResults object.
*
* @param pathQuery used to get the paths of the columns
* @param results the underlying Results object
* @param im intermine API
* @param pathToQueryNode the mapping between Paths (in the columnPaths argument) and the
* QueryNodes in the results object
* @param pathToBagQueryResult a Map containing results from LOOKUP operations
*/
public WebResults(
InterMineAPI im,
PathQuery pathQuery,
Results results,
Map<String, QuerySelectable> pathToQueryNode,
Map<String, BagQueryResult> pathToBagQueryResult) {
this.im = im;
this.osResults = results;
this.flatResults = new ResultsFlatOuterJoinsImpl(((List) osResults), osResults.getQuery());
model = im.getModel();
this.columnPaths = new ArrayList<Path>();
try {
for (String pathString : pathQuery.getView()) {
this.columnPaths.add(pathQuery.makePath(pathString));
}
} catch (PathException e) {
throw new RuntimeException("Error creating WebResults because PathQuery is invalid", e);
}
classKeys = im.getClassKeys();
this.pathToQueryNode = new HashMap<String, QuerySelectable>();
if (pathToQueryNode != null) {
this.pathToQueryNode.putAll(pathToQueryNode);
}
this.pathToBagQueryResult = new HashMap<String, BagQueryResult>();
if (pathToBagQueryResult != null) {
this.pathToBagQueryResult.putAll(pathToBagQueryResult);
}
this.pathQuery = pathQuery;
pathToIndex = getPathToIndex();
redirector = im.getLinkRedirector();
addColumnsInternal(columnPaths);
}
/**
* Calls ObjectStore.releaseGoFaster() if this object wraps a Results object from an
* ObjectStoreInterMineImpl.
*
* @throws ObjectStoreException if ObjectStoreInterMineImpl.releaseGoFaster() throws the exception
*/
public synchronized void releaseGoFaster() throws ObjectStoreException {
goingFaster--;
if (goingFaster == 0) {
ObjectStore os = osResults.getObjectStore();
if (os instanceof ObjectStoreInterMineImpl) {
((ObjectStoreInterMineImpl) os).releaseGoFaster(osResults.getQuery());
}
}
}
/**
* Calls ObjectStore.goFaster() if this object wraps a Results object from an
* ObjectStoreInterMineImpl.
*
* @throws ObjectStoreException if ObjectStoreInterMineImpl.goFaster() throws the exception
*/
public synchronized void goFaster() throws ObjectStoreException {
goingFaster++;
if (goingFaster == 1) {
osResults = changeResultBatchSize(osResults, BIG_BATCH_SIZE);
ObjectStore os = osResults.getObjectStore();
if (os instanceof ObjectStoreInterMineImpl) {
((ObjectStoreInterMineImpl) os).goFaster(osResults.getQuery());
}
}
}
/**
* Create and ObjectStore query from a PathQuery and execute it, returning results in a format
* appropriate for displaying a web table.
*
* @param pathQuery the query to execute
* @param pathToBagQueryResult will be populated with results from bag queries used in any LOOKUP
* constraints
* @return results in a format appropriate for display in a web page table
* @throws ObjectStoreException if problem running query
*/
public WebResults execute(PathQuery pathQuery, Map<String, BagQueryResult> pathToBagQueryResult)
throws ObjectStoreException {
Map<String, QuerySelectable> pathToQueryNode = new HashMap<String, QuerySelectable>();
Query q = makeQuery(pathQuery, pathToBagQueryResult, pathToQueryNode);
Results results = os.execute(q, Constants.BATCH_SIZE, true, true, false);
Query realQ = results.getQuery();
if (realQ == q) {
queryToPathToQueryNode.put(q, pathToQueryNode);
} else {
pathToQueryNode = queryToPathToQueryNode.get(realQ);
}
WebResults webResults =
new WebResults(im, pathQuery, results, pathToQueryNode, pathToBagQueryResult);
return webResults;
}
/**
* Make a copy of a Results object, but with a different batch size.
*
* @param oldResults the original Results objects
* @param newBatchSize the new batch size
* @return a new Results object with a new batch size
*/
private Results changeResultBatchSize(Results oldResults, int newBatchSize) {
Results newResults =
oldResults.getObjectStore().execute(oldResults.getQuery(), newBatchSize, true, true, true);
return newResults;
}
