public string TextGetTargetedSentiment(string text, string target, AlchemyAPI_TargetedSentimentParams parameters)
{
CheckText(text);
CheckText(target);
parameters.setText(text);
parameters.setTarget(target);
return(POST("TextGetTargetedSentiment", "text", parameters));
}
public string URLGetTargetedSentiment(string url, string target, AlchemyAPI_TargetedSentimentParams parameters)
{
CheckURL(url);
CheckText(target);
parameters.setUrl(url);
parameters.setTarget(target);
return(GET("URLGetTargetedSentiment", "url", parameters));
}
public static void Main()
{
// Create an AlchemyAPI object.
AlchemyAPI.AlchemyAPI alchemyObj = new AlchemyAPI.AlchemyAPI();
// Load an API key from disk.
alchemyObj.LoadAPIKey("api_key.txt");
// Extract sentiment for a web URL.
string xml = alchemyObj.URLGetTextSentiment("http://www.techcrunch.com/");
Console.WriteLine (xml);
// Extract sentiment from a text string.
xml = alchemyObj.TextGetTextSentiment("Hello there, my name is Bob Jones. I live in the United States of America. Where do you live, Fred?");
Console.WriteLine (xml);
// Load a HTML document to analyze.
StreamReader streamReader = new StreamReader("data/example.html");
string htmlDoc = streamReader.ReadToEnd();
streamReader.Close();
// Extract sentiment from a HTML document.
xml = alchemyObj.HTMLGetTextSentiment(htmlDoc, "http://www.test.com/");
Console.WriteLine (xml);
// Extract named entities with entity-targeted sentiment.
AlchemyAPI_EntityParams entityParams = new AlchemyAPI_EntityParams();
entityParams.setSentiment(true);
xml = alchemyObj.TextGetRankedNamedEntities("Bryan Adams' genius is unsurpassed.", entityParams);
Console.WriteLine (xml);
// Extract keywords with keyword-targeted sentiment.
AlchemyAPI_KeywordParams keywordParams = new AlchemyAPI_KeywordParams();
keywordParams.setSentiment(true);
xml = alchemyObj.TextGetRankedKeywords("Bryan Adams' genius is unsurpassed.", keywordParams);
Console.WriteLine (xml);
// Extract Targeted Sentiment
AlchemyAPI_TargetedSentimentParams sentimentParams = new AlchemyAPI_TargetedSentimentParams();
sentimentParams.setShowSourceText(true);
xml = alchemyObj.TextGetTargetedSentiment("This car is terrible.", "car", sentimentParams);
Console.WriteLine(xml);
xml = alchemyObj.URLGetTargetedSentiment("http://techcrunch.com/2012/03/01/keen-on-anand-rajaraman-how-walmart-wants-to-leapfrog-over-amazon-tctv/", "Walmart",sentimentParams);
Console.WriteLine(xml);
xml = alchemyObj.HTMLGetTargetedSentiment(htmlDoc, "http://www.test.com/", "WujWuj", sentimentParams);
Console.WriteLine(xml);
}
public string URLGetTargetedSentiment(string url, string target, AlchemyAPI_TargetedSentimentParams parameters)
{
CheckURL(url);
CheckText(target);
parameters.setUrl(url);
parameters.setTarget(target);
return GET("URLGetTargetedSentiment", "url", parameters);
}
public string TextGetTargetedSentiment(string text, string target, AlchemyAPI_TargetedSentimentParams parameters)
{
CheckText(text);
CheckText(target);
parameters.setText(text);
parameters.setTarget(target);
return POST("TextGetTargetedSentiment", "text", parameters);
}
public string HTMLGetTargetedSentiment(string html, string url, string target, AlchemyAPI_TargetedSentimentParams parameters)
{
CheckHTML(html, url);
CheckText(target);
parameters.setHtml(html);
parameters.setUrl(url);
parameters.setTarget(target);
return POST("HTMLGetTargetedSentiment", "html", parameters);
}
public string HTMLGetTargetedSentiment(string html, string url, string target, AlchemyAPI_TargetedSentimentParams parameters)
{
CheckHTML(html, url);
CheckText(target);
parameters.setHtml(html);
parameters.setUrl(url);
parameters.setTarget(target);
return(POST("HTMLGetTargetedSentiment", "html", parameters));
}
public void Execute(AnalysisExecutionContext context)
{
_context = context;
if (context.Results.Count <= 0)
{
context.OnExecutionProgress("Alchemy", new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Canceled, 0, 0, 0));
return;
}
AlchemyAPI.AlchemyAPI session = new AlchemyAPI.AlchemyAPI();
session.SetAPIKey(context.Key);
AlchemyAPI_TargetedSentimentParams parameters = new AlchemyAPI_TargetedSentimentParams();
parameters.setOutputMode(AlchemyAPI_BaseParams.OutputMode.XML);
int processed = 0;
int failed = 0;
foreach (KeyValuePair<string, ResultSet> document in context.Results)
{
try
{
string strResult = string.Empty;
if (context.UseDebugMode)
{
TimeSpan time = TimeSpan.Zero;
strResult = BenchmarkHelper.Invoke(new InvokeBenchmarkHandler(delegate(object state)
{
return session.TextGetTextSentiment(document.Value.Source, parameters);
}), null, out time) as string;
Console.WriteLine("\tAlchemyAPI: Sentiment for the document {0} has been retreived. Execution time is: {1}", document.Key, time.TotalMilliseconds);
}
else
strResult = session.TextGetTextSentiment(document.Value.Source, parameters);
using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(strResult)))
{
XmlSerializer serializer = new XmlSerializer(typeof(AlchemySentimentResult));
AlchemySentimentResult result = (AlchemySentimentResult)serializer.Deserialize(stream);
processed++;
document.Value.AddOutput("Alchemy", result.SentimentDetails.Score, result.SentimentDetails.Type);
AnalysisExecutionProgressEventArgs ea = new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Processed, context.Results.Count, processed, failed);
context.OnExecutionProgress("Alchemy", ea);
if (ea.Cancel)
break;
}
}
catch (Exception ex)
{
failed++;
document.Value.AddOutput("Alchemy", 0, "failed");
AnalysisExecutionProgressEventArgs ea = new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Failed, context.Results.Count, processed, failed);
ea.Reason = ex.Message;
context.OnExecutionProgress("Alchemy", ea);
if (ea.Cancel)
break;
}
}
context.OnExecutionProgress("Alchemy", new AnalysisExecutionProgressEventArgs(AnalysisExecutionStatus.Success, context.Results.Count, processed, failed));
}
