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Lucene.Net.Facet.Taxonomy.WriterCache.CharBlockArray: Implement IAppe…
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…ndable to align with Lucene. Added tests to check the implementations, since we have many additional overloads in .NET.
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@NightOwl888
NightOwl888 committed Jan 19, 2024
1 parent 11eca1f commit 3e23da2
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Showing 2 changed files with 437 additions and 16 deletions.
254 changes: 238 additions & 16 deletions src/Lucene.Net.Facet/Taxonomy/WriterCache/CharBlockArray.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ namespace Lucene.Net.Facet.Taxonomy.WriterCache
// therefore it doesn't make any difference what type of serialization is used.
// To make things simpler, we are using BinaryReader and BinaryWriter since
// BinaryFormatter is not implemented in .NET Standard 1.x.
internal class CharBlockArray : ICharSequence
internal class CharBlockArray : IAppendable, ICharSequence
{
private const long serialVersionUID = 1L;

Expand Down Expand Up @@ -133,10 +133,7 @@ internal virtual int IndexInBlock(int index)
return index % blockSize;
}

public virtual CharBlockArray Append(ICharSequence chars)
{
return Append(chars, 0, chars.Length);
}
#nullable enable

public virtual CharBlockArray Append(char c)
{
Expand All @@ -150,19 +147,96 @@ public virtual CharBlockArray Append(char c)
return this;
}

public virtual CharBlockArray Append(ICharSequence chars, int start, int length)
public virtual CharBlockArray Append(ICharSequence? value)
{
if (value is null) // needed for Appendable compliance
{
return this; // No-op
}

return Append(value, 0, value.Length);
}

public virtual CharBlockArray Append(ICharSequence? value, int startIndex, int length)
{
// LUCENENET: Changed semantics to be the same as the StringBuilder in .NET
if (startIndex < 0)
throw new ArgumentOutOfRangeException(nameof(startIndex), $"{nameof(startIndex)} must not be negative.");
if (length < 0)
throw new ArgumentOutOfRangeException(nameof(length), $"{nameof(length)} must not be negative.");

if (value is null)
{
if (startIndex == 0 && length == 0)
return this;
throw new ArgumentNullException(nameof(value));
}
if (length == 0)
return this;
if (startIndex > value.Length - length)
throw new ArgumentOutOfRangeException(nameof(startIndex), $"Index and length must refer to a location within the string. For example {nameof(startIndex)} + {nameof(length)} <= {nameof(Length)}.");


int end = startIndex + length;
for (int i = startIndex; i < end; i++)
{
Append(value[i]);
}
return this;
}

public virtual CharBlockArray Append(char[]? value)
{
int end = start + length;
for (int i = start; i < end; i++)
if (value is null) // needed for Appendable compliance
{
Append(chars[i]);
return this; // No-op
}

int remain = value.Length;
int offset = 0;
while (remain > 0)
{
if (this.current.length == this.blockSize)
{
AddBlock();
}
int toCopy = remain;
int remainingInBlock = this.blockSize - this.current.length;
if (remainingInBlock < toCopy)
{
toCopy = remainingInBlock;
}
Arrays.Copy(value, offset, this.current.chars, this.current.length, toCopy);
offset += toCopy;
remain -= toCopy;
this.current.length += toCopy;
}

this.length += value.Length;
return this;
}

public virtual CharBlockArray Append(char[] chars, int start, int length)
public virtual CharBlockArray Append(char[]? value, int startIndex, int length)
{
int offset = start;
// LUCENENET: Changed semantics to be the same as the StringBuilder in .NET
if (startIndex < 0)
throw new ArgumentOutOfRangeException(nameof(startIndex), $"{nameof(startIndex)} must not be negative.");
if (length < 0)
throw new ArgumentOutOfRangeException(nameof(length), $"{nameof(length)} must not be negative.");

if (value is null)
{
if (startIndex == 0 && length == 0)
return this;
throw new ArgumentNullException(nameof(value));
}
if (length == 0)
return this;
if (startIndex > value.Length - length)
throw new ArgumentOutOfRangeException(nameof(startIndex), $"Index and length must refer to a location within the string. For example {nameof(startIndex)} + {nameof(length)} <= {nameof(Length)}.");


int offset = startIndex;
int remain = length;
while (remain > 0)
{
Expand All @@ -176,7 +250,7 @@ public virtual CharBlockArray Append(char[] chars, int start, int length)
{
toCopy = remainingInBlock;
}
Arrays.Copy(chars, offset, this.current.chars, this.current.length, toCopy);
Arrays.Copy(value, offset, this.current.chars, this.current.length, toCopy);
offset += toCopy;
remain -= toCopy;
this.current.length += toCopy;
Expand All @@ -186,9 +260,14 @@ public virtual CharBlockArray Append(char[] chars, int start, int length)
return this;
}

public virtual CharBlockArray Append(string s)
public virtual CharBlockArray Append(string? value)
{
int remain = s.Length;
if (value is null) // needed for Appendable compliance
{
return this; // No-op
}

int remain = value.Length;
int offset = 0;
while (remain > 0)
{
Expand All @@ -202,16 +281,159 @@ public virtual CharBlockArray Append(string s)
{
toCopy = remainingInBlock;
}
s.CopyTo(offset, this.current.chars, this.current.length, toCopy);
value.CopyTo(offset, this.current.chars, this.current.length, toCopy);
offset += toCopy;
remain -= toCopy;
this.current.length += toCopy;
}

this.length += s.Length;
this.length += value.Length;
return this;
}

public virtual CharBlockArray Append(string? value, int startIndex, int length)
{
// LUCENENET: Changed semantics to be the same as the StringBuilder in .NET
if (startIndex < 0)
throw new ArgumentOutOfRangeException(nameof(startIndex), $"{nameof(startIndex)} must not be negative.");
if (length < 0)
throw new ArgumentOutOfRangeException(nameof(length), $"{nameof(length)} must not be negative.");

if (value is null)
{
if (startIndex == 0 && length == 0)
return this;
throw new ArgumentNullException(nameof(value));
}
if (length == 0)
return this;
if (startIndex > value.Length - length)
throw new ArgumentOutOfRangeException(nameof(startIndex), $"Index and length must refer to a location within the string. For example {nameof(startIndex)} + {nameof(length)} <= {nameof(Length)}.");


int offset = startIndex;
int remain = length;
while (remain > 0)
{
if (this.current.length == this.blockSize)
{
AddBlock();
}
int toCopy = remain;
int remainingInBlock = this.blockSize - this.current.length;
if (remainingInBlock < toCopy)
{
toCopy = remainingInBlock;
}
value.CopyTo(offset, this.current.chars, this.current.length, toCopy);
offset += toCopy;
remain -= toCopy;
this.current.length += toCopy;
}

this.length += length;
return this;
}

public virtual CharBlockArray Append(StringBuilder? value)
{
if (value is null) // needed for Appendable compliance
{
return this; // No-op
}

int remain = value.Length;
int offset = 0;
while (remain > 0)
{
if (this.current.length == this.blockSize)
{
AddBlock();
}
int toCopy = remain;
int remainingInBlock = this.blockSize - this.current.length;
if (remainingInBlock < toCopy)
{
toCopy = remainingInBlock;
}
value.CopyTo(offset, this.current.chars, this.current.length, toCopy);
offset += toCopy;
remain -= toCopy;
this.current.length += toCopy;
}

this.length += value.Length;
return this;
}

public virtual CharBlockArray Append(StringBuilder? value, int startIndex, int length)
{
// LUCENENET: Changed semantics to be the same as the StringBuilder in .NET
if (startIndex < 0)
throw new ArgumentOutOfRangeException(nameof(startIndex), $"{nameof(startIndex)} must not be negative.");
if (length < 0)
throw new ArgumentOutOfRangeException(nameof(length), $"{nameof(length)} must not be negative.");

if (value is null)
{
if (startIndex == 0 && length == 0)
return this;
throw new ArgumentNullException(nameof(value));
}
if (length == 0)
return this;
if (startIndex > value.Length - length)
throw new ArgumentOutOfRangeException(nameof(startIndex), $"Index and length must refer to a location within the string. For example {nameof(startIndex)} + {nameof(length)} <= {nameof(Length)}.");

int offset = startIndex;
int remain = length;
while (remain > 0)
{
if (this.current.length == this.blockSize)
{
AddBlock();
}
int toCopy = remain;
int remainingInBlock = this.blockSize - this.current.length;
if (remainingInBlock < toCopy)
{
toCopy = remainingInBlock;
}
value.CopyTo(offset, this.current.chars, this.current.length, toCopy);
offset += toCopy;
remain -= toCopy;
this.current.length += toCopy;
}

this.length += length;
return this;
}

#nullable restore

#region IAppendable Members

IAppendable IAppendable.Append(char value) => Append(value);

IAppendable IAppendable.Append(string value) => Append(value);

IAppendable IAppendable.Append(string value, int startIndex, int count) => Append(value, startIndex, count);

IAppendable IAppendable.Append(StringBuilder value) => Append(value);

IAppendable IAppendable.Append(StringBuilder value, int startIndex, int count) => Append(value, startIndex, count);

IAppendable IAppendable.Append(char[] value) => Append(value);

IAppendable IAppendable.Append(char[] value, int startIndex, int count) => Append(value, startIndex, count);

IAppendable IAppendable.Append(ICharSequence value) => Append(value);

IAppendable IAppendable.Append(ICharSequence value, int startIndex, int count) => Append(value, startIndex, count);


#endregion

// LUCENENET specific - replaced with this[index]
//public virtual char CharAt(int index)
//{
Expand Down
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