/// <summary>
/// Expert: allows you to customize the
/// <see cref="FieldType"/>.
/// </summary>
/// <param name="name"> field name </param>
/// <param name="value"> 32-bit <see cref="int"/> value </param>
/// <param name="type"> customized field type: must have <see cref="FieldType.NumericType"/>
/// of <see cref="NumericType.INT32"/>. </param>
/// <exception cref="ArgumentNullException"> if the field <paramref name="name"/> or <paramref name="type"/> is <c>null</c>. </exception>
/// <exception cref="ArgumentException">if the field type does not have a
/// <see cref="FieldType.NumericType"/> of <see cref="NumericType.INT32"/> </exception>
public Int32Field(string name, int value, FieldType type)
: base(name, type)
{
if (type.NumericType != Documents.NumericType.INT32)
{
throw new ArgumentException("type.NumericType must be NumericType.INT32 but got " + type.NumericType);
}
FieldsData = Int32.GetInstance(value);
}
private string ParseString(string s)
{
int readPos = 0;
int len = s.Length;
int writePos = 0;
while (readPos < len)
{
char c = s[readPos++];
if (c == '\\')
{
if (readPos >= len)
{
throw new ArgumentException("Invalid escaped char in [" + s + "]");
}
c = s[readPos++];
switch (c)
{
case '\\':
c = '\\';
break;
case 'n':
c = '\n';
break;
case 't':
c = '\t';
break;
case 'r':
c = '\r';
break;
case 'b':
c = '\b';
break;
case 'f':
c = '\f';
break;
case 'u':
if (readPos + 3 >= len)
{
throw new ArgumentException("Invalid escaped char in [" + s + "]");
}
// LUCENENET: Optimized parse so we don't allocate a substring
c = (char)Integer.Parse(s, readPos, 4, radix: 16);
readPos += 4;
break;
}
}
@out[writePos++] = c;
}
return(new string(@out, 0, writePos));
}
/// <summary>
/// Converts a hex string at the specified index and length of <paramref name="hex"/>
/// into an <see cref="int"/>.
/// <para/>
/// NOTE: This was hexToInt() in Lucene
/// </summary>
/// <param name="hex">
/// A string in capital or lower case hex, of no more then 16
/// characters.
/// </param>
/// <param name="startIndex">The index of the first character to begin parsing.</param>
/// <param name="length">The number of characters to parse.</param>
/// <exception cref="FormatException">if the string is more than 16 characters long, or if any
/// character is not in the set [0-9a-fA-f]</exception>
/// <exception cref="ArgumentOutOfRangeException">
/// <paramref name="startIndex"/> or <paramref name="length"/> is less than zero.
/// <para/>
/// -or-
/// <para/>
/// <paramref name="startIndex"/> and <paramref name="length"/> refer to a location outside of <paramref name="hex"/>.
/// </exception>
// LUCENENET specific overload
public static int HexToInt32(string hex, int startIndex, int length)
{
if ((length > 16) || !Integer.TryParse(hex, startIndex, length, radix: 16, out int result))
{
throw NumberFormatException.Create();
}
return(result);
}
internal static int Get(int i, string s)
{
// LUCENENET: Optimized so we don't alocate a substring
if (!Integer.TryParse(s, i, 1, radix: 10, out int result))
{
return(1);
}
return(result);
}
public virtual void TestObjectContains()
{
CharArraySet set = new CharArraySet(TEST_VERSION_CURRENT, 10, true);
J2N.Numerics.Int32 val = J2N.Numerics.Int32.GetInstance(1);
set.Add(val);
assertTrue(set.Contains(val));
assertTrue(set.Contains(J2N.Numerics.Int32.GetInstance(1))); // another integer
assertTrue(set.Contains("1"));
assertTrue(set.Contains(new char[] { '1' }));
// test unmodifiable
set = CharArraySet.UnmodifiableSet(set);
assertTrue(set.Contains(val));
assertTrue(set.Contains(J2N.Numerics.Int32.GetInstance(1))); // another integer
assertTrue(set.Contains("1"));
assertTrue(set.Contains(new char[] { '1' }));
}
internal RegExp ParseRepeatExp()
{
RegExp e = ParseComplExp();
while (Peek("?*+{"))
{
if (Match('?'))
{
e = MakeOptional(e);
}
else if (Match('*'))
{
e = MakeRepeat(e);
}
else if (Match('+'))
{
e = MakeRepeat(e, 1);
}
else if (Match('{'))
{
int start = pos;
while (Peek("0123456789"))
{
Next();
}
if (start == pos)
{
throw new ArgumentException("integer expected at position " + pos);
}
// LUCENENET: Optimized so we don't allocate a substring during the parse
int n = Integer.Parse(b, start, pos - start, radix: 10);
int m = -1;
if (Match(','))
{
start = pos;
while (Peek("0123456789"))
{
Next();
}
if (start != pos)
{
// LUCENENET: Optimized so we don't allocate a substring during the parse
m = Integer.Parse(b, start, pos - start, radix: 10);
}
}
else
{
m = n;
}
if (!Match('}'))
{
throw new ArgumentException("expected '}' at position " + pos);
}
if (m == -1)
{
e = MakeRepeat(e, n);
}
else
{
e = MakeRepeat(e, n, m);
}
}
}
return(e);
}
/// <summary>
/// Creates a stored or un-stored <see cref="Int32Field"/> with the provided value
/// and default <c>precisionStep</c>
/// <see cref="Util.NumericUtils.PRECISION_STEP_DEFAULT"/> (4).
/// </summary>
/// <param name="name"> field name </param>
/// <param name="value"> 32-bit <see cref="int"/> value </param>
/// <param name="stored"> <see cref="Field.Store.YES"/> if the content should also be stored </param>
/// <exception cref="ArgumentNullException"> if the field <paramref name="name"/> is <c>null</c>. </exception>
public Int32Field(string name, int value, Store stored)
: base(name, stored == Store.YES ? TYPE_STORED : TYPE_NOT_STORED)
{
FieldsData = Int32.GetInstance(value);
}
// TODO: not great but maybe not a big problem?
/// <summary>
/// Create a stored-only field with the given <see cref="int"/> value. </summary>
/// <param name="name"> field name </param>
/// <param name="value"> <see cref="int"/> value </param>
/// <exception cref="ArgumentNullException"> if the field <paramref name="name"/> is <c>null</c>. </exception>
public StoredField(string name, int value)
: base(name, TYPE)
{
FieldsData = Int32.GetInstance(value);
}
public virtual void TestNumericField()
{
using Directory dir = NewDirectory();
DirectoryReader r = null;
try
{
var numDocs = AtLeast(500);
var answers = new Number[numDocs];
using (var w = new RandomIndexWriter(Random, dir))
{
NumericType[] typeAnswers = new NumericType[numDocs];
for (int id = 0; id < numDocs; id++)
{
Document doc = new Document();
Field nf;
Field sf;
Number answer;
NumericType typeAnswer;
if (Random.NextBoolean())
{
// float/double
if (Random.NextBoolean())
{
float f = Random.NextSingle();
answer = Single.GetInstance(f);
nf = new SingleField("nf", f, Field.Store.NO);
sf = new StoredField("nf", f);
typeAnswer = NumericType.SINGLE;
}
else
{
double d = Random.NextDouble();
answer = Double.GetInstance(d);
nf = new DoubleField("nf", d, Field.Store.NO);
sf = new StoredField("nf", d);
typeAnswer = NumericType.DOUBLE;
}
}
else
{
// int/long
if (Random.NextBoolean())
{
int i = Random.Next();
answer = Int32.GetInstance(i);
nf = new Int32Field("nf", i, Field.Store.NO);
sf = new StoredField("nf", i);
typeAnswer = NumericType.INT32;
}
else
{
long l = Random.NextInt64();
answer = Int64.GetInstance(l);
nf = new Int64Field("nf", l, Field.Store.NO);
sf = new StoredField("nf", l);
typeAnswer = NumericType.INT64;
}
}
doc.Add(nf);
doc.Add(sf);
answers[id] = answer;
typeAnswers[id] = typeAnswer;
FieldType ft = new FieldType(Int32Field.TYPE_STORED);
ft.NumericPrecisionStep = int.MaxValue;
doc.Add(new Int32Field("id", id, ft));
w.AddDocument(doc);
}
r = w.GetReader();
} // w.Dispose();
Assert.AreEqual(numDocs, r.NumDocs);
foreach (AtomicReaderContext ctx in r.Leaves)
{
AtomicReader sub = ctx.AtomicReader;
FieldCache.Int32s ids = FieldCache.DEFAULT.GetInt32s(sub, "id", false);
for (int docID = 0; docID < sub.NumDocs; docID++)
{
Document doc = sub.Document(docID);
Field f = doc.GetField <Field>("nf");
Assert.IsTrue(f is StoredField, "got f=" + f);
#pragma warning disable 612, 618
Assert.AreEqual(answers[ids.Get(docID)], f.GetNumericValue());
#pragma warning restore 612, 618
}
}
}
finally
{
r?.Dispose();
}
}
