/** @see IndexReader#getFieldNames(boolean) */
public Collection getFieldNames(boolean indexed) throws IOException {
// maintain a unique set of field names
Set fieldSet = new HashSet();
for (int i = 0; i < fieldInfos.size(); i++) {
FieldInfo fi = fieldInfos.fieldInfo(i);
if (fi.isIndexed == indexed) fieldSet.add(fi.name);
}
return fieldSet;
}
private final void openNorms(Directory cfsDir) throws IOException {
for (int i = 0; i < fieldInfos.size(); i++) {
FieldInfo fi = fieldInfos.fieldInfo(i);
if (fi.isIndexed) {
String fileName = segment + ".f" + fi.number;
// look first for re-written file, then in compound format
Directory d = directory().fileExists(fileName) ? directory() : cfsDir;
norms.put(fi.name, new Norm(d.openFile(fileName), fi.number));
}
}
}
/**
* @param storedTermVector if true, returns only Indexed fields that have term vector info, else
* only indexed fields without term vector info
* @return Collection of Strings indicating the names of the fields
*/
public Collection getIndexedFieldNames(boolean storedTermVector) {
// maintain a unique set of field names
Set fieldSet = new HashSet();
for (int i = 0; i < fieldInfos.size(); i++) {
FieldInfo fi = fieldInfos.fieldInfo(i);
if (fi.isIndexed == true && fi.storeTermVector == storedTermVector) {
fieldSet.add(fi.name);
}
}
return fieldSet;
}
public TermVectorsWriter(Directory directory, String segment, FieldInfos fieldInfos)
throws IOException {
// Open files for TermVector storage
tvx = directory.createOutput(segment + TVX_EXTENSION);
tvx.writeInt(FORMAT_VERSION);
tvd = directory.createOutput(segment + TVD_EXTENSION);
tvd.writeInt(FORMAT_VERSION);
tvf = directory.createOutput(segment + TVF_EXTENSION);
tvf.writeInt(FORMAT_VERSION);
this.fieldInfos = fieldInfos;
fields = new Vector(fieldInfos.size());
terms = new Vector();
}
final Vector files() throws IOException {
Vector files = new Vector(16);
final String ext[] =
new String[] {
"cfs", "fnm", "fdx", "fdt", "tii", "tis", "frq", "prx", "del", "tvx", "tvd", "tvf", "tvp"
};
for (int i = 0; i < ext.length; i++) {
String name = segment + "." + ext[i];
if (directory().fileExists(name)) files.addElement(name);
}
for (int i = 0; i < fieldInfos.size(); i++) {
FieldInfo fi = fieldInfos.fieldInfo(i);
if (fi.isIndexed) files.addElement(segment + ".f" + i);
}
return files;
}
