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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using org.apache.qpid.transport.util;
namespace org.apache.qpid.transport
{
/// <summary>
/// RangeSet
/// </summary>
public sealed class RangeSet : IEnumerable<Range>
{
private readonly List<Range> _ranges = new List<Range>();
IEnumerator IEnumerable.GetEnumerator()
{
return GetEnumerator();
}
public IEnumerator<Range> GetEnumerator()
{
return _ranges.GetEnumerator();
}
public int Size()
{
return _ranges.Count;
}
public Range GetFirst()
{
return _ranges[0];
}
public bool Includes(Range range)
{
foreach (Range r in this)
{
if (r.Includes(range))
{
return true;
}
}
return false;
}
public bool Includes(int n)
{
foreach (Range r in this)
{
if (r.Includes(n))
{
return true;
}
}
return false;
}
public void Add(Range range)
{
for (int i = 0; i < _ranges.Count; i++)
{
Range r = _ranges[i];
if (range.Touches(r))
{
_ranges.Remove(r);
range = range.Span(r);
}
else if (Serial.Lt(range.Upper, r.Lower))
{
_ranges.Insert(i - 1 , range);
return;
}
}
_ranges.Add(range);
}
public void Add(int lower, int upper)
{
Add(new Range(lower, upper));
}
public void Add(int value)
{
Add(value, value);
}
public void Clear()
{
_ranges.Clear();
}
public RangeSet Copy()
{
RangeSet copy = new RangeSet();
foreach (Range r in _ranges)
{
copy._ranges.Add(r);
}
return copy;
}
public override String ToString()
{
StringBuilder str = new StringBuilder();
str.Append("{");
bool first = true;
foreach (Range range in _ranges)
{
if (first)
{
first = false;
}
else
{
str.Append(", ");
}
str.Append(range);
}
str.Append("}");
return str.ToString();
}
}
}
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