public static IIndexFragmentFile[] findFiles(
PDOM pdom, BTree btree, IIndexFileLocation location, IIndexLocationConverter strategy)
throws CoreException {
String internalRepresentation = strategy.toInternalFormat(location);
if (internalRepresentation != null) {
Finder finder = new Finder(pdom.getDB(), internalRepresentation, -1, null);
btree.accept(finder);
long[] records = finder.getRecords();
PDOMFile[] result = new PDOMFile[records.length];
for (int i = 0; i < result.length; i++) {
result[i] = recreateFile(pdom, records[i]);
}
return result;
}
return IIndexFragmentFile.EMPTY_ARRAY;
}
/**
* Finds the file in index.
*
* @param linkage The linkage of the file.
* @param btree The file index.
* @param location The location of the file.
* @param strategy The index location converter.
* @param macroDictionary The names and definitions of the macros used to disambiguate between
* variants of the file contents corresponding to different inclusion points.
* @return The found file, or <code>null</code> if the matching file was not found.
*/
public static PDOMFile findFile(
PDOMLinkage linkage,
BTree btree,
IIndexFileLocation location,
IIndexLocationConverter strategy,
ISignificantMacros macroDictionary)
throws CoreException {
String internalRepresentation = strategy.toInternalFormat(location);
if (internalRepresentation != null) {
Finder finder =
new Finder(
linkage.getDB(), internalRepresentation, linkage.getLinkageID(), macroDictionary);
btree.accept(finder);
long record = finder.getRecord();
if (record != 0) {
return new PDOMFile(linkage, record);
}
}
return null;
}
/**
* Uses the specified location converter to update each internal representation of a file
* location. The file index is rebuilt with the new representations. Individual PDOMFile records
* are unmoved so as to maintain referential integrity with other PDOM records.
*
* <p><b>A write-lock must be obtained before calling this method</b>
*
* @param newConverter the converter to use to update internal file representations
* @throws CoreException
*/
public void rewriteLocations(final IIndexLocationConverter newConverter) throws CoreException {
final List<PDOMFile> pdomfiles = new ArrayList<PDOMFile>();
getFileIndex()
.accept(
new IBTreeVisitor() {
@Override
public int compare(long record) throws CoreException {
return 0;
}
@Override
public boolean visit(long record) throws CoreException {
PDOMFile file = PDOMFile.recreateFile(WritablePDOM.this, record);
pdomfiles.add(file);
return true;
}
});
clearFileIndex();
final List<PDOMFile> notConverted = new ArrayList<PDOMFile>();
for (PDOMFile file : pdomfiles) {
String internalFormat = newConverter.toInternalFormat(file.getLocation());
if (internalFormat != null) {
file.setInternalLocation(internalFormat);
getFileIndex().insert(file.getRecord());
} else {
notConverted.add(file);
}
}
// remove content where converter returns null
for (PDOMFile file : notConverted) {
file.convertIncludersToUnresolved();
file.clear();
}
}
