private void readField(BytesRef type, FieldInfo fieldInfo, StoredFieldVisitor visitor)
throws IOException {
readLine();
assert StringHelper.startsWith(scratch.get(), VALUE);
if (type == TYPE_STRING) {
byte[] bytes = new byte[scratch.length() - VALUE.length];
System.arraycopy(scratch.bytes(), VALUE.length, bytes, 0, bytes.length);
visitor.stringField(fieldInfo, bytes);
} else if (type == TYPE_BINARY) {
byte[] copy = new byte[scratch.length() - VALUE.length];
System.arraycopy(scratch.bytes(), VALUE.length, copy, 0, copy.length);
visitor.binaryField(fieldInfo, copy);
} else if (type == TYPE_INT) {
scratchUTF16.copyUTF8Bytes(scratch.bytes(), VALUE.length, scratch.length() - VALUE.length);
visitor.intField(fieldInfo, Integer.parseInt(scratchUTF16.toString()));
} else if (type == TYPE_LONG) {
scratchUTF16.copyUTF8Bytes(scratch.bytes(), VALUE.length, scratch.length() - VALUE.length);
visitor.longField(fieldInfo, Long.parseLong(scratchUTF16.toString()));
} else if (type == TYPE_FLOAT) {
scratchUTF16.copyUTF8Bytes(scratch.bytes(), VALUE.length, scratch.length() - VALUE.length);
visitor.floatField(fieldInfo, Float.parseFloat(scratchUTF16.toString()));
} else if (type == TYPE_DOUBLE) {
scratchUTF16.copyUTF8Bytes(scratch.bytes(), VALUE.length, scratch.length() - VALUE.length);
visitor.doubleField(fieldInfo, Double.parseDouble(scratchUTF16.toString()));
}
}
@Override
public void visitDocument(int n, StoredFieldVisitor visitor) throws IOException {
in.seek(offsets[n]);
while (true) {
readLine();
if (StringHelper.startsWith(scratch.get(), FIELD) == false) {
break;
}
int fieldNumber = parseIntAt(FIELD.length);
FieldInfo fieldInfo = fieldInfos.fieldInfo(fieldNumber);
readLine();
assert StringHelper.startsWith(scratch.get(), NAME);
readLine();
assert StringHelper.startsWith(scratch.get(), TYPE);
final BytesRef type;
if (equalsAt(TYPE_STRING, scratch.get(), TYPE.length)) {
type = TYPE_STRING;
} else if (equalsAt(TYPE_BINARY, scratch.get(), TYPE.length)) {
type = TYPE_BINARY;
} else if (equalsAt(TYPE_INT, scratch.get(), TYPE.length)) {
type = TYPE_INT;
} else if (equalsAt(TYPE_LONG, scratch.get(), TYPE.length)) {
type = TYPE_LONG;
} else if (equalsAt(TYPE_FLOAT, scratch.get(), TYPE.length)) {
type = TYPE_FLOAT;
} else if (equalsAt(TYPE_DOUBLE, scratch.get(), TYPE.length)) {
type = TYPE_DOUBLE;
} else {
throw new RuntimeException("unknown field type");
}
switch (visitor.needsField(fieldInfo)) {
case YES:
readField(type, fieldInfo, visitor);
break;
case NO:
readLine();
assert StringHelper.startsWith(scratch.get(), VALUE);
break;
case STOP:
return;
}
}
}