fix #527 Analyze() should favor POST over GET

Author: Mpdreamz

Diff for: src/Nest/DSL/AnalyzeDescriptor.cs

@@ -20,7 +20,7 @@ public partial class AnalyzeDescriptor :
 		ElasticsearchPathInfo<AnalyzeRequestParameters> IPathInfo<AnalyzeRequestParameters>.ToPathInfo(IConnectionSettingsValues settings)
 		{
 			var pathInfo = base.ToPathInfo<AnalyzeRequestParameters>(settings, this._QueryString);
-			pathInfo.HttpMethod = PathInfoHttpMethod.GET;
+			pathInfo.HttpMethod = PathInfoHttpMethod.POST;
 
 			return pathInfo;
 		}

Diff for: src/Nest/ElasticClient-Analyze.cs

@@ -11,7 +11,13 @@ public IAnalyzeResponse Analyze(Func<AnalyzeDescriptor, AnalyzeDescriptor> analy
 		{
 			return this.Dispatch<AnalyzeDescriptor, AnalyzeRequestParameters, AnalyzeResponse>(
 				analyzeSelector,
-				(p, d) => this.RawDispatch.IndicesAnalyzeDispatch<AnalyzeResponse>(p, d)
+				(p, d) =>
+				{
+					var text = d._QueryString.GetQueryStringValue<string>("text");
+					d._QueryString.RemoveQueryString("text");
+					text.ThrowIfNullOrEmpty("No text specified to analyze");
+					return this.RawDispatch.IndicesAnalyzeDispatch<AnalyzeResponse>(p, text);
+				}
 			);
 		}
 
@@ -20,7 +26,13 @@ public Task<IAnalyzeResponse> AnalyzeAsync(Func<AnalyzeDescriptor, AnalyzeDescri
 		{
 			return this.DispatchAsync<AnalyzeDescriptor, AnalyzeRequestParameters, AnalyzeResponse, IAnalyzeResponse>(
 				analyzeSelector,
-				(p, d) => this.RawDispatch.IndicesAnalyzeDispatchAsync<AnalyzeResponse>(p, d)
+				(p, d) =>
+				{
+					var text = d._QueryString.GetQueryStringValue<string>("text");
+					d._QueryString.RemoveQueryString("text");
+					text.ThrowIfNullOrEmpty("No text specified to analyze");
+					return this.RawDispatch.IndicesAnalyzeDispatchAsync<AnalyzeResponse>(p, text);
+				}
 			);
 		}
 	}

Diff for: src/Tests/Nest.Tests.Unit/BigBadUrlUnitTests.cs

@@ -43,8 +43,8 @@ private class OtherDoc
 		public void TestAllTheUrls()
 		{
 			Do("POST", "/_aliases", c => c.Alias(a => a));
-			Do("GET", "/_analyze", c => c.Analyze(a => a));
-			Do("GET", "/myindex/_analyze", c => c.Analyze(a => a.Index("myindex")));
+			Do("POST", "/_analyze", c => c.Analyze(a => a.Text("blah")));
+			Do("POST", "/myindex/_analyze", c => c.Analyze(a => a.Index("myindex").Text("blah")));
 			Do("POST", "/myindex/_bulk", c => c.Bulk(b => b.FixedPath("myindex").Index<Doc>(ib => ib.Object(new Doc { Id = "1" }))));
 			Do("POST", "/myindex/mytype/_bulk", c => c.Bulk(b => b.FixedPath("myindex", "mytype").Index<Doc>(ib => ib.Object(new Doc { Id = "1" }))));
 			Do("POST", "/myindex/_bulk", c => c.Bulk(b => b.FixedPath("myindex").Index<Doc>(ib => ib.Object(new Doc { Id = "1" }))));