/// <summary>
/// Merges all the given sources.
/// </summary>
/// <param name="sources">The sources.</param>
/// <param name="resolutionType">The resolution type.</param>
/// <returns>A merged stream.</returns>
public static OsmStreamSource Merge(this IEnumerable <IEnumerable <OsmGeo> > sources,
ConflictResolutionType resolutionType = ConflictResolutionType.FirstStream)
{
OsmStreamSource previous = null;
foreach (var source in sources)
{
var osmSource = new OsmEnumerableStreamSource(source);
if (previous == null)
{
previous = osmSource;
}
else
{
var next = new OsmStreamFilterMerge(resolutionType);
next.RegisterSource(previous);
next.RegisterSource(osmSource);
previous = next;
}
}
return(previous);
}
public void TestMergeWays()
{
var stream1 = new OsmGeo[]
{
new Way()
{
Id = 1
}
};
var stream2 = new OsmGeo[]
{
new Way()
{
Id = 2
}
};
var merge = new OsmStreamFilterMerge();
merge.RegisterSource(stream1);
merge.RegisterSource(stream2);
var result = new List <OsmGeo>(merge);
Assert.AreEqual(2, result.Count);
Assert.AreEqual(1, result[0].Id);
Assert.AreEqual(2, result[1].Id);
}
public void TestMergeOneEmpty()
{
var stream1 = new OsmGeo[0];
var stream2 = new OsmGeo[]
{
new Node()
{
Id = 1
},
new Way()
{
Id = 1
},
new Relation()
{
Id = 1
}
};
var merge = new OsmStreamFilterMerge();
merge.RegisterSource(stream1);
merge.RegisterSource(stream2);
var result = new List <OsmGeo>(merge);
Assert.AreEqual(3, result.Count);
Assert.AreEqual(1, result[0].Id);
Assert.AreEqual(OsmGeoType.Node, result[0].Type);
Assert.AreEqual(1, result[1].Id);
Assert.AreEqual(OsmGeoType.Way, result[1].Type);
Assert.AreEqual(1, result[2].Id);
Assert.AreEqual(OsmGeoType.Relation, result[2].Type);
}
public void TestMergeNotSorted()
{
var stream1 = new OsmGeo[]
{
new Node()
{
Id = 1
}
};
var stream2 = new OsmGeo[]
{
new Node()
{
Id = 4
},
new Node()
{
Id = 2
}
};
var merge = new OsmStreamFilterMerge();
merge.RegisterSource(stream1);
merge.RegisterSource(stream2);
Assert.Catch <Streams.Exceptions.StreamNotSortedException>(() =>
{
merge.ToList();
});
}
/// <summary>
/// Merges a stream with the given other stream.
/// </summary>
public static OsmStreamSource Merge(this IEnumerable <OsmGeo> source, ConflictResolutionType resolutionType, OsmStreamSource other)
{
var merged = new OsmStreamFilterMerge(resolutionType);
merged.RegisterSource(source);
merged.RegisterSource(other);
return(merged);
}
/// <summary>
/// Merges the given sources into this source.
/// </summary>
public static OsmStreamSource Merge(this IEnumerable <OsmGeo> source, ConflictResolutionType resolutionType, params IEnumerable <OsmGeo>[] sources)
{
var merge = new OsmStreamFilterMerge(resolutionType);
for (var i = 0; i < sources.Length; i++)
{
merge.RegisterSource(sources[i]);
}
return(merge);
}
/// <summary>
/// Merges the given sources into this source.
/// </summary>
public static OsmStreamSource Merge(this IEnumerable <OsmGeo> source, ConflictResolutionType resolutionType, params OsmStreamSource[] sources)
{
if (sources.Length == 0)
{
return(new OsmEnumerableStreamSource(source));
}
var merged = new OsmStreamFilterMerge(resolutionType);
merged.RegisterSource(source);
merged.RegisterSource(sources[0]);
for (var s = 1; s < sources.Length; s++)
{
var next = new OsmStreamFilterMerge(resolutionType);
next.RegisterSource(merged);
next.RegisterSource(sources[s]);
merged = next;
}
return(merged);
}
public void TestMergeConflict()
{
var stream1 = new OsmGeo[]
{
new Node()
{
Id = 1,
Version = 1
},
new Way()
{
Id = 1,
Version = 1
},
new Relation()
{
Id = 1,
Version = 1
}
};
var stream2 = new OsmGeo[]
{
new Node()
{
Id = 1
},
new Node()
{
Id = 2
},
new Way()
{
Id = 1
},
new Way()
{
Id = 2
},
new Relation()
{
Id = 1
},
new Relation()
{
Id = 2
}
};
var merge = new OsmStreamFilterMerge();
merge.RegisterSource(stream1);
merge.RegisterSource(stream2);
var result = new List <OsmGeo>(merge);
Assert.AreEqual(6, result.Count);
Assert.AreEqual(1, result[0].Id);
Assert.AreEqual(1, result[0].Version);
Assert.AreEqual(OsmGeoType.Node, result[0].Type);
Assert.AreEqual(2, result[1].Id);
Assert.AreEqual(OsmGeoType.Node, result[1].Type);
Assert.AreEqual(1, result[2].Id);
Assert.AreEqual(1, result[2].Version);
Assert.AreEqual(OsmGeoType.Way, result[2].Type);
Assert.AreEqual(2, result[3].Id);
Assert.AreEqual(OsmGeoType.Way, result[3].Type);
Assert.AreEqual(1, result[4].Id);
Assert.AreEqual(1, result[4].Version);
Assert.AreEqual(OsmGeoType.Relation, result[4].Type);
Assert.AreEqual(2, result[5].Id);
Assert.AreEqual(OsmGeoType.Relation, result[5].Type);
}
