/**
* Deletes this file from PDOM. Only uncommitted files can be safely deleted.
*
* @throws CoreException
*/
public void delete() throws CoreException {
Database db = fLinkage.getDB();
long locRecord = db.getRecPtr(record + LOCATION_REPRESENTATION);
if (locRecord != 0) db.getString(locRecord).delete();
locRecord = db.getRecPtr(record + SIGNIFICANT_MACROS);
if (locRecord != 0) db.getString(locRecord).delete();
locRecord = db.getRecPtr(record + REPLACEMENT_HEADER);
if (locRecord != 0) db.getString(locRecord).delete();
db.free(record);
}
/**
* Directly changes this record's internal location string. The format of this string is
* unspecified in general and is determined by the associated IIndexLocationConverter. This method
* should not be called on PDOMFile objects that are referenced by the file index.
*
* @param internalLocation
* @throws CoreException
*/
public void setInternalLocation(String internalLocation) throws CoreException {
Database db = fLinkage.getDB();
long oldRecord = db.getRecPtr(record + LOCATION_REPRESENTATION);
if (oldRecord != 0) db.getString(oldRecord).delete();
db.putRecPtr(record + LOCATION_REPRESENTATION, db.newString(internalLocation).getRecord());
location = null;
}
@Override
public void setReplacementHeader(String replacementHeader) throws CoreException {
Database db = fLinkage.getDB();
long oldRecord = db.getRecPtr(record + REPLACEMENT_HEADER);
if (oldRecord != 0) db.getString(oldRecord).delete();
long newRecord = replacementHeader == null ? 0 : db.newString(replacementHeader).getRecord();
db.putRecPtr(record + REPLACEMENT_HEADER, newRecord);
}
@Override
public ISignificantMacros getSignificantMacros() throws CoreException {
if (sigMacros == null) {
Database db = fLinkage.getDB();
final IString encoded = db.getString(db.getRecPtr(record + SIGNIFICANT_MACROS));
sigMacros =
encoded == null ? ISignificantMacros.NONE : new SignificantMacros(encoded.getChars());
}
return sigMacros;
}
@Override
public int compare(long record) throws CoreException {
IString name = db.getString(db.getRecPtr(record + PDOMFile.LOCATION_REPRESENTATION));
int cmp = name.compare(rawKey, true);
if (cmp == 0 && linkageID >= 0) {
cmp = db.get3ByteUnsignedInt(record + PDOMFile.LINKAGE_ID) - linkageID;
if (cmp == 0 && rawSignificantMacros != null) {
IString significantMacrosStr = getString(record + SIGNIFICANT_MACROS);
if (significantMacrosStr != null) {
cmp = significantMacrosStr.compare(rawSignificantMacros, true);
} else {
cmp = rawSignificantMacros.length > 0 ? -1 : 0;
}
}
}
return cmp;
}
@Override
public IIndexFileLocation getLocation() throws CoreException {
if (location == null) {
Database db = fLinkage.getDB();
String raw = db.getString(db.getRecPtr(record + LOCATION_REPRESENTATION)).getString();
location = fLinkage.getPDOM().getLocationConverter().fromInternalFormat(raw);
if (location == null) {
URI uri;
try {
int idx = raw.lastIndexOf('>');
uri = new URI("file", null, raw.substring(idx + 1), null); // $NON-NLS-1$
} catch (URISyntaxException e) {
uri = URI.create("file:/unknown-location"); // $NON-NLS-1$
}
location = new IndexFileLocation(uri, null);
}
}
return location;
}
@Override
public int compare(long record1, long record2) throws CoreException {
IString name1 = db.getString(db.getRecPtr(record1 + LOCATION_REPRESENTATION));
IString name2 = db.getString(db.getRecPtr(record2 + LOCATION_REPRESENTATION));
int cmp = name1.compare(name2, true);
if (cmp == 0) {
cmp =
db.get3ByteUnsignedInt(record1 + LINKAGE_ID)
- db.get3ByteUnsignedInt(record2 + LINKAGE_ID);
if (cmp == 0) {
IString sm1 = getString(record1 + SIGNIFICANT_MACROS);
IString sm2 = getString(record2 + SIGNIFICANT_MACROS);
if (sm1 == null) {
cmp = sm2 == null ? 0 : -1;
} else if (sm2 == null) {
cmp = 1;
} else {
cmp = sm1.compare(sm2, true);
}
}
}
return cmp;
}
@Override
public String getReplacementHeader() throws CoreException {
Database db = fLinkage.getDB();
long rec = db.getRecPtr(record + REPLACEMENT_HEADER);
return rec == 0 ? null : db.getString(rec).getString();
}
private IString getString(long offset) throws CoreException {
long rec = db.getRecPtr(offset);
return rec != 0 ? db.getString(rec) : null;
}
