public SimpleFlamdexWriter(
String outputDirectory, long numDocs, boolean create, boolean writeBTreesOnClose)
throws IOException {
this.outputDirectory = outputDirectory;
this.maxDocs = numDocs;
this.writeBTreesOnClose = writeBTreesOnClose;
if (create) {
if (new File(outputDirectory).exists()) {
deleteIndex(outputDirectory);
} else if (!new File(outputDirectory).mkdirs()) {
throw new IOException("unable to create directory at " + outputDirectory);
}
intFields = new HashSet<String>();
stringFields = new HashSet<String>();
} else {
final FlamdexMetadata metadata = FlamdexMetadata.readMetadata(outputDirectory);
if (metadata.numDocs != numDocs) {
throw new IllegalArgumentException(
"numDocs ("
+ numDocs
+ ") does not match numDocs in existing index ("
+ metadata.numDocs
+ ")");
}
intFields = new HashSet<String>(metadata.intFields);
stringFields = new HashSet<String>(metadata.stringFields);
}
}
