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AwXmlTextReader.cs
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AwXmlTextReader.cs
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// Copyright 2016, Google Inc. All Rights Reserved.
//
// Licensed 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.Collections.Generic;
using System.IO;
using System.Xml;
namespace Google.Api.Ads.AdWords.Util.Reports
{
/// <summary>
/// An implementation of <see ref="InputTextReader" /> using XML.
/// </summary>
public class AwXmlTextReader : InputTextReader
{
/// <summary>
/// The instance of an XML text reader this reader uses.
/// </summary>
private readonly XmlTextReader reader;
/// <summary>
/// Constructor
/// </summary>
/// <param name="input">An input Stream of the XML text.</param>
public AwXmlTextReader(Stream input)
{
reader = new XmlTextReader(input);
}
/// <summary>
/// Advances this reader to the next row in the XML.
/// </summary>
/// <returns>True if reader was moved to a row element, and false if further
/// reading is impossible.</returns>
public bool Read()
{
if (!reader.Read())
{
return false;
}
else if (reader.NodeType == XmlNodeType.Element && reader.Name == "row")
{
return true;
}
return Read();
}
/// <summary>
/// Disposes the underlying XML reader and makes this reader useless.
/// </summary>
public void Dispose()
{
reader.Dispose();
}
/// <summary>
/// Gets a list of the attributes and their values for the current row of the report.
/// </summary>
/// <returns>A list of pairs of attribute names and values</returns>
public IEnumerable<ColumnValuePair> GetAttributes()
{
while (reader.MoveToNextAttribute())
{
yield return new ColumnValuePair(reader.Name, reader.Value);
}
}
}
}