// get the elevation map from the data dir
Map<String, ElevationObj> getElevationMap(IndexReader reader, SolrCore core) throws Exception {
synchronized (elevationCache) {
Map<String, ElevationObj> map = elevationCache.get(null);
if (map != null) return map;
map = elevationCache.get(reader);
if (map == null) {
String f = initArgs.get(CONFIG_FILE);
if (f == null) {
throw new SolrException(
SolrException.ErrorCode.SERVER_ERROR,
"QueryElevationComponent must specify argument: " + CONFIG_FILE);
}
log.info("Loading QueryElevation from data dir: " + f);
Config cfg;
ZkController zkController = core.getCoreDescriptor().getCoreContainer().getZkController();
if (zkController != null) {
cfg = new Config(core.getResourceLoader(), f, null, null);
} else {
InputStream is = VersionedFile.getLatestFile(core.getDataDir(), f);
cfg = new Config(core.getResourceLoader(), f, new InputSource(is), null);
}
map = loadElevationMap(cfg);
elevationCache.put(reader, map);
}
return map;
}
}
private static float[] getFloats(FileFloatSource ffs, IndexReader reader) {
float[] vals = new float[reader.maxDoc()];
if (ffs.defVal != 0) {
Arrays.fill(vals, ffs.defVal);
}
InputStream is;
String fname = "external_" + ffs.field.getName();
try {
is = VersionedFile.getLatestFile(ffs.dataDir, fname);
} catch (IOException e) {
// log, use defaults
SolrCore.log.error("Error opening external value source file: " + e);
return vals;
}
BufferedReader r = new BufferedReader(new InputStreamReader(is));
String idName = StringHelper.intern(ffs.keyField.getName());
FieldType idType = ffs.keyField.getType();
boolean sorted = true; // assume sorted until we discover it's not
// warning: lucene's termEnum.skipTo() is not optimized... it simply does a next()
// because of this, simply ask the reader for a new termEnum rather than
// trying to use skipTo()
List<String> notFound = new ArrayList<String>();
int notFoundCount = 0;
int otherErrors = 0;
TermDocs termDocs = null;
Term protoTerm = new Term(idName, "");
TermEnum termEnum = null;
// Number of times to try termEnum.next() before resorting to skip
int numTimesNext = 10;
char delimiter = '=';
String termVal;
boolean hasNext = true;
String prevKey = "";
String lastVal = "\uFFFF\uFFFF\uFFFF\uFFFF\uFFFF\uFFFF\uFFFF\uFFFF";
try {
termDocs = reader.termDocs();
termEnum = reader.terms(protoTerm);
Term t = termEnum.term();
if (t != null && t.field() == idName) { // intern'd comparison
termVal = t.text();
} else {
termVal = lastVal;
}
for (String line; (line = r.readLine()) != null; ) {
int delimIndex = line.indexOf(delimiter);
if (delimIndex < 0) continue;
int endIndex = line.length();
/* EOLs should already be removed for BufferedReader.readLine()
for(int endIndex = line.length();endIndex>delimIndex+1; endIndex--) {
char ch = line.charAt(endIndex-1);
if (ch!='\n' && ch!='\r') break;
}
*/
String key = line.substring(0, delimIndex);
String val = line.substring(delimIndex + 1, endIndex);
String internalKey = idType.toInternal(key);
float fval;
try {
fval = Float.parseFloat(val);
} catch (Exception e) {
if (++otherErrors <= 10) {
SolrCore.log.error(
"Error loading external value source + fileName + "
+ e
+ (otherErrors < 10 ? "" : "\tSkipping future errors for this file."));
}
continue; // go to next line in file.. leave values as default.
}
if (sorted) {
// make sure this key is greater than the previous key
sorted = internalKey.compareTo(prevKey) >= 0;
prevKey = internalKey;
if (sorted) {
int countNext = 0;
for (; ; ) {
int cmp = internalKey.compareTo(termVal);
if (cmp == 0) {
termDocs.seek(termEnum);
while (termDocs.next()) {
vals[termDocs.doc()] = fval;
}
break;
} else if (cmp < 0) {
// term enum has already advanced past current key... we didn't find it.
if (notFoundCount < 10) { // collect first 10 not found for logging
notFound.add(key);
}
notFoundCount++;
break;
} else {
// termEnum is less than our current key, so skip ahead
// try next() a few times to see if we hit or pass the target.
// Lucene's termEnum.skipTo() is currently unoptimized (it just does next())
// so the best thing is to simply ask the reader for a new termEnum(target)
// if we really need to skip.
if (++countNext > numTimesNext) {
termEnum = reader.terms(protoTerm.createTerm(internalKey));
t = termEnum.term();
} else {
hasNext = termEnum.next();
t = hasNext ? termEnum.term() : null;
}
if (t != null && t.field() == idName) { // intern'd comparison
termVal = t.text();
} else {
termVal = lastVal;
}
}
} // end for(;;)
}
}
if (!sorted) {
termEnum = reader.terms(protoTerm.createTerm(internalKey));
t = termEnum.term();
if (t != null
&& t.field() == idName // intern'd comparison
&& internalKey.equals(t.text())) {
termDocs.seek(termEnum);
while (termDocs.next()) {
vals[termDocs.doc()] = fval;
}
} else {
if (notFoundCount < 10) { // collect first 10 not found for logging
notFound.add(key);
}
notFoundCount++;
}
}
}
} catch (IOException e) {
// log, use defaults
SolrCore.log.error("Error loading external value source: " + e);
} finally {
// swallow exceptions on close so we don't override any
// exceptions that happened in the loop
if (termDocs != null)
try {
termDocs.close();
} catch (Exception e) {
}
if (termEnum != null)
try {
termEnum.close();
} catch (Exception e) {
}
try {
r.close();
} catch (Exception e) {
}
}
SolrCore.log.info(
"Loaded external value source "
+ fname
+ (notFoundCount == 0 ? "" : " :" + notFoundCount + " missing keys " + notFound));
return vals;
}