public static string getKeyPhrases(string mailbody)
{
var client = AuthenticateClient();
var result = client.KeyPhrases(mailbody);
List <string> lkeyPhrases = new List <string>();
string strKeyPhrases = string.Empty;
foreach (string kp in result.KeyPhrases)
{
lkeyPhrases.Add(kp);
}
AmazonComprehendClient comprehendClient = new AmazonComprehendClient(Amazon.RegionEndpoint.USWest2);
DetectSyntaxRequest dsr = new DetectSyntaxRequest()
{
Text = mailbody,
LanguageCode = "en"
};
DetectSyntaxResponse dsrsp = comprehendClient.DetectSyntax(dsr);
List <string> adjectives = new List <string>();
List <string> finalKeyPhrases = new List <string>();
foreach (SyntaxToken kp in dsrsp.SyntaxTokens)
{
if (kp.PartOfSpeech.Tag.Equals("ADJ"))
{
adjectives.Add(kp.Text);
}
}
foreach (var adj in adjectives)
{
foreach (var phs in lkeyPhrases)
{
if (phs.Contains(adj))
{
finalKeyPhrases.Add(phs);
}
}
}
string str = "";
foreach (var fnlKeyPhr in finalKeyPhrases)
{
str = str + ' ' + fnlKeyPhr + ' ' + '/';
}
var values = new object[2];
values[0] = "Key Phrases";
values[1] = str.Substring(0, str.Length - 1);
return(str.Substring(0, str.Length - 1));
}
/// <summary>
/// Unmarshaller the response from the service to the response class.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public override AmazonWebServiceResponse Unmarshall(JsonUnmarshallerContext context)
{
DetectSyntaxResponse response = new DetectSyntaxResponse();
context.Read();
int targetDepth = context.CurrentDepth;
while (context.ReadAtDepth(targetDepth))
{
if (context.TestExpression("SyntaxTokens", targetDepth))
{
var unmarshaller = new ListUnmarshaller <SyntaxToken, SyntaxTokenUnmarshaller>(SyntaxTokenUnmarshaller.Instance);
response.SyntaxTokens = unmarshaller.Unmarshall(context);
continue;
}
}
return(response);
}
/// <summary>
/// This method calls DetectSynaxAsync to identify the syntax elements
/// in the sample text.
/// </summary>
public static async Task Main()
{
string text = "It is raining today in Seattle";
var comprehendClient = new AmazonComprehendClient();
// Call DetectSyntax API
Console.WriteLine("Calling DetectSyntaxAsync\n");
var detectSyntaxRequest = new DetectSyntaxRequest()
{
Text = text,
LanguageCode = "en",
};
DetectSyntaxResponse detectSyntaxResponse = await comprehendClient.DetectSyntaxAsync(detectSyntaxRequest);
foreach (SyntaxToken s in detectSyntaxResponse.SyntaxTokens)
{
Console.WriteLine($"Text: {s.Text}, PartOfSpeech: {s.PartOfSpeech.Tag}, BeginOffset: {s.BeginOffset}, EndOffset: {s.EndOffset}");
}
Console.WriteLine("Done");
}
