/**
* Creates a {@code SiteSet} from the comma-delimted site file designated by {@code path}.
*
* @param path to comma-delimited site data file
* @throws IOException if problem encountered
*/
static SiteSet fromCsv(Path path) throws IOException {
checkNotNull(path);
List<Site> siteList = new ArrayList<>();
Builder builder = Site.builder();
List<String> lines = Files.readAllLines(path, StandardCharsets.UTF_8);
boolean firstline = true;
List<Key> keyList = new ArrayList<>();
for (String line : lines) {
// skip comments
if (line.startsWith("#")) continue;
if (line.trim().isEmpty()) continue;
List<String> values = Parsing.splitToList(line, Delimiter.COMMA);
// set up key/column ordering
if (firstline) {
Set<Key> keys = EnumSet.of(NAME, LAT, LON, VS30, VS_INF, Z1P0, Z2P5);
for (String keyStr : values) {
Key key = Key.fromString(keyStr);
checkState(keys.contains(key), "Illegal site property key [%s]", keyStr);
keyList.add(key);
}
checkState(keyList.contains(LAT), "Site latitudes must be defined");
checkState(keyList.contains(LON), "Site longitudes must be defined");
firstline = false;
continue;
}
int index = 0;
double lat = 0.0;
double lon = 0.0;
for (Key key : keyList) {
String value = values.get(index);
switch (key) {
case LAT:
lat = Double.parseDouble(value);
break;
case LON:
lon = Double.parseDouble(value);
break;
case NAME:
builder.name(value);
break;
case VS30:
builder.vs30(Double.parseDouble(value));
break;
case VS_INF:
builder.vsInferred(Boolean.parseBoolean(value));
break;
case Z1P0:
builder.z1p0(Double.parseDouble(value));
break;
case Z2P5:
builder.z2p5(Double.parseDouble(value));
break;
default:
throw new IllegalStateException("Unsupported site key: " + key);
}
index++;
}
builder.location(lat, lon);
siteList.add(builder.build());
}
return new SiteSet(siteList);
}
@Override
public final String toString() {
return Parsing.enumLabelWithSpaces(this);
}