From c0e071095e73846b9d3b98bc5e9ae39237d4f59b Mon Sep 17 00:00:00 2001
From: Giancarlo Panichi <g.panichi@isti.cnr.it>
Date: Wed, 9 May 2018 15:44:19 +0000
Subject: [PATCH] ref 11746: NLP Hub with empty output

https://support.d4science.org/issues/11746

Fixed error when algorithm result is undefined

git-svn-id: http://svn.research-infrastructures.eu/public/d4science/gcube/trunk/data-analysis/nlphub@167382 82a268e6-3cf1-43bd-a215-b396298e98cf
---
 src/main/webapp/js/main.js | 703 +++++++++++++++++++------------------
 1 file changed, 368 insertions(+), 335 deletions(-)

diff --git a/src/main/webapp/js/main.js b/src/main/webapp/js/main.js
index 021f0bd..43b7569 100644
--- a/src/main/webapp/js/main.js
+++ b/src/main/webapp/js/main.js
@@ -30,7 +30,7 @@ $(document).ready(function() {
 });
 
 checkInputLink = function() {
-	if(inputFile != "") {
+	if (inputFile != "") {
 		showProgress();
 		$.ajax({
 			url : inputFile,
@@ -38,172 +38,186 @@ checkInputLink = function() {
 			async : true,
 			success : function(data, stato) {
 				freeText = data;
-				var uploaderUrl = appRoot + "/nlphub-uploader-servlet?getlang=on&freetext=" 
-					+ encodeURIComponent(freeText) + "&dataminer=" + encodeURIComponent(dataMiner);
-				
-				if(gCubeToken.length > 0)
-					uploaderUrl += "&gcube-token=" + gCubeToken; 
+				var uploaderUrl = appRoot
+						+ "/nlphub-uploader-servlet?getlang=on&freetext="
+						+ encodeURIComponent(freeText) + "&dataminer="
+						+ encodeURIComponent(dataMiner);
+
+				if (gCubeToken.length > 0)
+					uploaderUrl += "&gcube-token=" + gCubeToken;
 				$.ajax({
-						url : uploaderUrl,
-						type : "POST",
-						async : true,
-						contentType : "text/plain; charset=utf-8",
-						success : function(data, stato) {
-							hideProgress();
-							$("#input-textarea").val(freeText);
-							computedLanguage = data.language;
-							initApplication();
-						},
-						error : function(richiesta, stato,
-								errori) {
-							alert("Unexpected Error. Status: "
-									+ richiesta.status);
-							hideProgress();
-							textAreaEnable(true);
-							$("#file-info").empty();
-							initApplication();
-						}
-					});
+					url : uploaderUrl,
+					type : "POST",
+					async : true,
+					contentType : "text/plain; charset=utf-8",
+					success : function(data, stato) {
+						hideProgress();
+						$("#input-textarea").val(freeText);
+						computedLanguage = data.language;
+						initApplication();
+					},
+					error : function(richiesta, stato, errori) {
+						alert("Unexpected Error. Status: " + richiesta.status);
+						hideProgress();
+						textAreaEnable(true);
+						$("#file-info").empty();
+						initApplication();
+					}
+				});
 			},
 			error : function(richiesta, stato, errori) {
-				alert("Unexpected error reading from link: '" + inputFile + "'.\nStatus: " + richiesta.status + " Error: " + errori + "\nClick OK to start application.");
+				alert("Unexpected error reading from link: '" + inputFile
+						+ "'.\nStatus: " + richiesta.status + " Error: "
+						+ errori + "\nClick OK to start application.");
 				hideProgress();
 				initApplication();
 			}
 		});
-	}
-	else initApplication();
+	} else
+		initApplication();
 }
 
 initApplication = function() {
-	$.ajax({
-		url : "https://data.d4science.org/bnp4UDNyb21lSURkQXdDUnlSS0JkVWgzWk1KMUxWVGZHbWJQNStIS0N6Yz0",
-		type : "GET",
-		async : true,
-		contentType : "text/plain; charset=utf-8",
-		success : function(data, stato) {
-			$("#ner-result-container").hide();
-			var lineTokens = manageCsvData(data);
-			getAlgorithms(lineTokens);
-			buildLanguageSelection();
-			buildLanguageList();
-			buildAnnotations();
-			resizeTable();
-			resizeLogo();
-			enableAjaxFileUpload();
-			collapsibleHandler();
-			
-			$("#logo-image").click(function() {
-				backHandler();
-			});
-			
-			$("#back-ner-ui-button").click(function() {
-				backHandler();
-			});
+	$
+			.ajax({
+				url : "https://data.d4science.org/bnp4UDNyb21lSURkQXdDUnlSS0JkVWgzWk1KMUxWVGZHbWJQNStIS0N6Yz0",
+				type : "GET",
+				async : true,
+				contentType : "text/plain; charset=utf-8",
+				success : function(data, stato) {
+					$("#ner-result-container").hide();
+					var lineTokens = manageCsvData(data);
+					getAlgorithms(lineTokens);
+					buildLanguageSelection();
+					buildLanguageList();
+					buildAnnotations();
+					resizeTable();
+					resizeLogo();
+					enableAjaxFileUpload();
+					collapsibleHandler();
 
-			disableExecuteButton();
-			var uploaderUrl = appRoot + "/nlphub-uploader-servlet?dataminer=" + encodeURIComponent(dataMiner);
-			if(gCubeToken.length > 0)
-				uploaderUrl += "&gcube-token=" + gCubeToken;
-			
-			$("#upload-button")
-					.uploadFile(
-							{
-								url : uploaderUrl,
-								fileName : "mytxtfile",
-								maxFileCount : 100,
-								multiple : false,
-								maxFileSize : 1024 * 1000 * 1,
-								showFileCounter : false,
-								showCancel : true,
-								//allowedTypes: "txt,.txt",
-								dragDropStr : "<img class='img-prompt' src='img/upload.png' width='60px' height='60px' style='display:block; margin:auto; padding: 10px'>",
-								extErrorStr : "Error. Text file only",
-								sizeErrorStr : "Error. Max size: 6 Mb",
-								onLoad : function(obj) {
-									txtFlag = true;
-									$("#file-info").remove();
-									$("#reset-upload").remove();
-									$("#fu-container")
-											.append(
-													"<div id=\"right-child\" class=\"float-right-div\"></div>");
-									$("#right-child")
-											.append(
-													"<div id=\"file-info\" class=\"centered\"></div>");
-									$("#right-child")
-											.append(
-													"<div id=\"reset-upload\" class=\"centered\">Cancel</div>");
-									$("#reset-upload").hide();
-									$("#reset-upload").click(function() {
-												resetExecuteButton();
-												$("#file-info").empty();
-												$("#reset-upload").css(
-														"display", "none");
-												textAreaEnable(true);
-											});
-									savedAnnotations = "";
-									setEventListeners();
-								},
-								onSelect : function(files) {
-									var fileName = files[0].name;
-									var extension = "" + fileName.substring(fileName.lastIndexOf("."));
-									if(extension.toUpperCase() == ".TXT") {
-										showProgress();
-										textAreaEnable(false);
-										$("#input-textarea").val("");
-									} else {
-										txtFlag = false;
-										alert("The application supports text file only (.TXT)");
-									}
-									publicLink = null;
-									textAreaEnable(false);
-									$("#input-textarea").val("");
-								},
-								onSubmit: function(files) {
-									var submitFlag = txtFlag;
-									txtFlag = true;
-									return submitFlag;
-								},
-								onSuccess : function(files, data, xhr) {
-									hideProgress();
-									checkLanguage(data.language);
-									selectAnnotationsByLanguage();
-									$("#reset-upload").css("display",
-											"inline");
-									$("#file-info").empty();
-									$("#file-info")
-											.append(
-													"Uploaded: <span style=\"color:#4CAF50; letter-spacing: 1px; font-weight: bold;\">"
-															+ files
-															+ "</span>");
-									publicLink = data.message;
-									enableExecuteButton();
-									if (publicLink == null) {
-										alert("Error uploading file.");
-									}
-								},
-								onError : function(files, status, errMsg,
-										pd) {
-									hideProgress();
-									textAreaEnable(true);
-									alert(errMsg);
-								}
-							});
-			
-			if($("#input-textarea").val() != "") {
-				disableAjaxFileUpload();
-				if(computedLanguage != "") {
-					checkLanguage(computedLanguage);
-					selectAnnotationsByLanguage();
-					computedLanguage = "";
+					$("#logo-image").click(function() {
+						backHandler();
+					});
+
+					$("#back-ner-ui-button").click(function() {
+						backHandler();
+					});
+
+					disableExecuteButton();
+					var uploaderUrl = appRoot
+							+ "/nlphub-uploader-servlet?dataminer="
+							+ encodeURIComponent(dataMiner);
+					if (gCubeToken.length > 0)
+						uploaderUrl += "&gcube-token=" + gCubeToken;
+
+					$("#upload-button")
+							.uploadFile(
+									{
+										url : uploaderUrl,
+										fileName : "mytxtfile",
+										maxFileCount : 100,
+										multiple : false,
+										maxFileSize : 1024 * 1000 * 1,
+										showFileCounter : false,
+										showCancel : true,
+										// allowedTypes: "txt,.txt",
+										dragDropStr : "<img class='img-prompt' src='img/upload.png' width='60px' height='60px' style='display:block; margin:auto; padding: 10px'>",
+										extErrorStr : "Error. Text file only",
+										sizeErrorStr : "Error. Max size: 6 Mb",
+										onLoad : function(obj) {
+											txtFlag = true;
+											$("#file-info").remove();
+											$("#reset-upload").remove();
+											$("#fu-container")
+													.append(
+															"<div id=\"right-child\" class=\"float-right-div\"></div>");
+											$("#right-child")
+													.append(
+															"<div id=\"file-info\" class=\"centered\"></div>");
+											$("#right-child")
+													.append(
+															"<div id=\"reset-upload\" class=\"centered\">Cancel</div>");
+											$("#reset-upload").hide();
+											$("#reset-upload")
+													.click(
+															function() {
+																resetExecuteButton();
+																$("#file-info")
+																		.empty();
+																$(
+																		"#reset-upload")
+																		.css(
+																				"display",
+																				"none");
+																textAreaEnable(true);
+															});
+											savedAnnotations = "";
+											setEventListeners();
+										},
+										onSelect : function(files) {
+											var fileName = files[0].name;
+											var extension = ""
+													+ fileName
+															.substring(fileName
+																	.lastIndexOf("."));
+											if (extension.toUpperCase() == ".TXT") {
+												showProgress();
+												textAreaEnable(false);
+												$("#input-textarea").val("");
+											} else {
+												txtFlag = false;
+												alert("The application supports text file only (.TXT)");
+											}
+											publicLink = null;
+											textAreaEnable(false);
+											$("#input-textarea").val("");
+										},
+										onSubmit : function(files) {
+											var submitFlag = txtFlag;
+											txtFlag = true;
+											return submitFlag;
+										},
+										onSuccess : function(files, data, xhr) {
+											hideProgress();
+											checkLanguage(data.language);
+											selectAnnotationsByLanguage();
+											$("#reset-upload").css("display",
+													"inline");
+											$("#file-info").empty();
+											$("#file-info")
+													.append(
+															"Uploaded: <span style=\"color:#4CAF50; letter-spacing: 1px; font-weight: bold;\">"
+																	+ files
+																	+ "</span>");
+											publicLink = data.message;
+											enableExecuteButton();
+											if (publicLink == null) {
+												alert("Error uploading file.");
+											}
+										},
+										onError : function(files, status,
+												errMsg, pd) {
+											hideProgress();
+											textAreaEnable(true);
+											alert(errMsg);
+										}
+									});
+
+					if ($("#input-textarea").val() != "") {
+						disableAjaxFileUpload();
+						if (computedLanguage != "") {
+							checkLanguage(computedLanguage);
+							selectAnnotationsByLanguage();
+							computedLanguage = "";
+						}
+						enableExecuteButton();
+					}
+				},
+				error : function(richiesta, stato, errori) {
+					alert("Unexpected Error. Status: " + richiesta.status);
 				}
-				enableExecuteButton();
-			}
-		},
-		error : function(richiesta, stato, errori) {
-			alert("Unexpected Error. Status: " + richiesta.status);
-		}
-	});
+			});
 }
 
 /*
@@ -211,29 +225,29 @@ initApplication = function() {
  */
 setEventListeners = function() {
 	$(".ajax-file-upload").attr("id", "ajax-file-upload-id");
-	
+
 	$("#input-textarea").on("keyup", function() {
 		enableDisableTextArea();
 	});
-	
+
 	$("#input-textarea").change(function() {
 		enableDisableTextArea();
 	});
-	
+
 	window.addEventListener('contextmenu', function(e) {
 		enableDisableTextArea();
-    }, false);
-	
+	}, false);
+
 	$(".popup-text").click(function(e) {
 		hidePopupText();
 	});
-	
+
 	$("#execute-button")
 			.click(
 					function() {
-						if(!isEnabled())
+						if (!isEnabled())
 							return;
-						
+
 						if ((publicLink == null)
 								&& ($("#input-textarea").val() == "")) {
 							alert("You must upload a file or write some text in the text area before submit a request.");
@@ -241,42 +255,44 @@ setEventListeners = function() {
 						}
 
 						disableExecuteButton();
-						
+
 						showProgress();
 						// if some text has been written in the text area, then
 						// a corresponding text file
 						// must be written in the workspace and the public link
 						// is set.
 						if ($("#input-textarea").val().length > 0) {
-							//if(publicLink == null) {
+							// if(publicLink == null) {
 							freeText = $("#input-textarea").val();
-							var uploaderUrl =  appRoot + "/nlphub-uploader-servlet?freetext="
-											+ encodeURIComponent(freeText) + "&dataminer=" + encodeURIComponent(dataMiner);
-							
-							if(gCubeToken.length > 0)
+							var uploaderUrl = appRoot
+									+ "/nlphub-uploader-servlet?freetext="
+									+ encodeURIComponent(freeText)
+									+ "&dataminer="
+									+ encodeURIComponent(dataMiner);
+
+							if (gCubeToken.length > 0)
 								uploaderUrl += "&gcube-token=" + gCubeToken;
 
 							$.ajax({
-									url : uploaderUrl,
-									type : "POST",
-									async : true,
-									contentType : "text/plain; charset=utf-8",
-									success : function(data, stato) {
-										publicLink = data.message;
-										if (publicLink == null) {
-											alert("Error uploading file.");
-										}
-										runAlgorithm();
-									},
-									error : function(richiesta, stato,
-											errori) {
-										alert("Unexpected Error. Status: "
-												+ richiesta.status);
-										hideProgress();
-										textAreaEnable(true);
-										$("#file-info").empty();
+								url : uploaderUrl,
+								type : "POST",
+								async : true,
+								contentType : "text/plain; charset=utf-8",
+								success : function(data, stato) {
+									publicLink = data.message;
+									if (publicLink == null) {
+										alert("Error uploading file.");
 									}
-								});
+									runAlgorithm();
+								},
+								error : function(richiesta, stato, errori) {
+									alert("Unexpected Error. Status: "
+											+ richiesta.status);
+									hideProgress();
+									textAreaEnable(true);
+									$("#file-info").empty();
+								}
+							});
 						}
 
 						else {
@@ -286,88 +302,94 @@ setEventListeners = function() {
 }
 
 collapsibleHandler = function() {
-//	$('.collapsible').collapsible();
- //$('.collapsible').collapsible({
-//	    onOpen: function(el) {  
-//	    	if(el.index() == 0)
-//	    		$('.collapsible').collapsible('close', 1);
-//	    	else 
-//	    		$('.collapsible').collapsible('close', 0);
-//	    }, 
-//	    onClose: function(el) { 
-//	    	if(el.index() == 0)
-//	    		$('.collapsible').collapsible('open', 1);
-//	    	else
-//	    		$('.collapsible').collapsible('open', 0);
-//	    } 
-//	  });
+	// $('.collapsible').collapsible();
+	// $('.collapsible').collapsible({
+	// onOpen: function(el) {
+	// if(el.index() == 0)
+	// $('.collapsible').collapsible('close', 1);
+	// else
+	// $('.collapsible').collapsible('close', 0);
+	// },
+	// onClose: function(el) {
+	// if(el.index() == 0)
+	// $('.collapsible').collapsible('open', 1);
+	// else
+	// $('.collapsible').collapsible('open', 0);
+	// }
+	// });
 }
 
-enableAjaxFileUpload= function() {
+enableAjaxFileUpload = function() {
 	$(".ajax-file-upload").attr("enabled", "true");
 	$(".ajax-file-upload").css("background", pageGreen);
 	try {
-		document.getElementById("ajax-file-upload-id").removeEventListener("click", listenAjaxFileUpload);
-	}catch(err) {
+		document.getElementById("ajax-file-upload-id").removeEventListener(
+				"click", listenAjaxFileUpload);
+	} catch (err) {
 		console.log(err.message);
 	}
 }
 
-disableAjaxFileUpload= function() {
+disableAjaxFileUpload = function() {
 	$(".ajax-file-upload").attr("enabled", "false");
 	$(".ajax-file-upload").css("background", pageGray);
 	try {
-		document.getElementById("ajax-file-upload-id").removeEventListener("click", listenAjaxFileUpload);
-		document.getElementById("ajax-file-upload-id").addEventListener("click", listenAjaxFileUpload);
-	}catch(err) {
-		document.getElementById("ajax-file-upload-id").addEventListener("click", listenAjaxFileUpload);
+		document.getElementById("ajax-file-upload-id").removeEventListener(
+				"click", listenAjaxFileUpload);
+		document.getElementById("ajax-file-upload-id").addEventListener(
+				"click", listenAjaxFileUpload);
+	} catch (err) {
+		document.getElementById("ajax-file-upload-id").addEventListener(
+				"click", listenAjaxFileUpload);
 	}
-	
+
 }
 
 listenAjaxFileUpload = function(event) {
 	event.preventDefault();
 }
 
-
 backHandler = function() {
-	if($("#ner-ui").is(":visible"))
+	if ($("#ner-ui").is(":visible"))
 		return;
 	$("#ner-result-container").hide();
 	$(".popup-text").hide();
 	$("#ner-ui").show();
-	if(publicLink != null) {
+	if (publicLink != null) {
 		enableExecuteButton();
-		if(document.getElementById("reset-upload")  != null) {
-			if($("#reset-upload").is(":visible"))
+		if (document.getElementById("reset-upload") != null) {
+			if ($("#reset-upload").is(":visible"))
 				textAreaEnable(false);
 		}
 	}
 }
 
 /*
- * Utility function processing the language indication returned by the language recognition service
+ * Utility function processing the language indication returned by the language
+ * recognition service
  */
 checkLanguage = function(lang) {
-	if(lang == 'unavailable')
+	if (lang == 'unavailable')
 		return;
 	var options = $("#language-select option");
-	for(var i=0; i<options.length; i++) {
-		if(options[i].innerText.toLowerCase() == lang.toLowerCase()) {
+	for (var i = 0; i < options.length; i++) {
+		if (options[i].innerText.toLowerCase() == lang.toLowerCase()) {
 			$("#language-select").val(options[i].innerText);
 			buildAnnotations();
 			return;
 		}
 	}
-	alert("The uploaded file seems to be in " + lang + ", but this language is not currently supported. Please, be aware of this, should you decide to continue and use the tools of another language... \"Praemonitus praemunitus!\"");
+	alert("The uploaded file seems to be in "
+			+ lang
+			+ ", but this language is not currently supported. Please, be aware of this, should you decide to continue and use the tools of another language... \"Praemonitus praemunitus!\"");
 }
 
 /*
- * CSV parser 
+ * CSV parser
  */
 manageCsvData = function(data) {
 	var tokensPerLine = 8;
-	
+
 	// first of all: split on the "newline" character in order to
 	// get all lines.
 	var lines = data.split("\n");
@@ -396,13 +418,13 @@ manageCsvData = function(data) {
 		}
 		// get the new token and push it in the array
 		tokens.push(line.substring(tokenStart + 1));
-		
-		if(tokens.length != tokensPerLine)
+
+		if (tokens.length != tokensPerLine)
 			continue; // skip...
-		
+
 		lineTokens.push(tokens);
 		var description = tokens[1].toUpperCase().trim();
-		if(description == "CLOUD COMPUTING")
+		if (description == "CLOUD COMPUTING")
 			dataMiner = tokens[2];
 		tokens = [];
 	}
@@ -411,7 +433,8 @@ manageCsvData = function(data) {
 }
 
 /*
- * Map the supported algorithms (from CSV) in the internal global algorithm array
+ * Map the supported algorithms (from CSV) in the internal global algorithm
+ * array
  */
 getAlgorithms = function(lineTokens) {
 	// build the list of supported algorithms
@@ -427,15 +450,16 @@ getAlgorithms = function(lineTokens) {
 			var annotationList = lineTokens[i][3].replace(/"/g, " ").trim();
 			var language = lineTokens[i][4].replace(/"/g, " ").trim();
 
-			algorithms.push ( {
+			algorithms.push({
 				"name" : algName,
 				"description" : algDescription,
 				"id" : algId,
 				"lang" : language,
 				"annotations" : annotationList
 			});
-			
-			algIndexedArray[algorithms[algorithms.length-1].id.substr(algorithms[0].id.lastIndexOf(".")+1)] = algorithms[algorithms.length-1];
+
+			algIndexedArray[algorithms[algorithms.length - 1].id
+					.substr(algorithms[0].id.lastIndexOf(".") + 1)] = algorithms[algorithms.length - 1];
 		}
 	}
 }
@@ -503,7 +527,7 @@ disableExecuteButton = function() {
 }
 
 isEnabled = function() {
-	if($("#execute-button").attr("enable") == "true")
+	if ($("#execute-button").attr("enable") == "true")
 		return true;
 	return false;
 }
@@ -512,14 +536,12 @@ enableDisableTextArea = function() {
 	if ($("#input-textarea").val() == "") {
 		disableExecuteButton();
 		enableAjaxFileUpload();
-	}
-	else {
+	} else {
 		enableExecuteButton();
 		disableAjaxFileUpload();
 	}
 }
 
-
 /*
  * show the in-progress popup
  */
@@ -555,20 +577,20 @@ runAlgorithm = function() {
 	// build the algorithm list, selecting on:
 	// [1] the language
 	// [2] the annotations
-	
+
 	var algList = "";
 	for (j in algorithms) {
 		if (algorithms[j].lang.toLowerCase().indexOf(
 				$("#language-select").val().toLowerCase()) >= 0) {
 			var algAnnotations = algorithms[j].annotations.toLowerCase();
-			for(k in list) {
+			for (k in list) {
 				var a = list[k].toLowerCase();
-				if(algAnnotations.indexOf(a) > -1) {
+				if (algAnnotations.indexOf(a) > -1) {
 					algList += encodeURI(algorithms[j].id) + ",";
 					break;
 				}
 			}
-			
+
 		}
 	}
 	if (algList.length == 0) {
@@ -585,7 +607,7 @@ runAlgorithm = function() {
 	parameters += "&algs=" + algList;
 
 	var nlphubUrl = appRoot + "/nlphub-servlet?" + parameters;
-	if(gCubeToken.length > 0)
+	if (gCubeToken.length > 0)
 		nlphubUrl += "&gcube-token=" + gCubeToken;
 	$.ajax({
 		url : nlphubUrl,
@@ -618,10 +640,10 @@ getOutputJson = function(message) {
 	var tobemap = "";
 	for (var i = 0; i < message.length; i++) {
 		var splitted = message[i].split(":::");
-		if(splitted[1].toLowerCase().trim() == "error") {
-			alert("Some error occurrend running algorithm " + splitted[0] + ". Trying to get other results...");
-		}
-		else {
+		if (splitted[1].toLowerCase().trim() == "error") {
+			alert("Some error occurrend running algorithm " + splitted[0]
+					+ ". Trying to get other results...");
+		} else {
 			tobemap += message[i] + "|";
 		}
 	}
@@ -634,7 +656,7 @@ getOutputJson = function(message) {
 	parameters += "&tobemap=" + encodeURI(tobemap);
 
 	var mapperUrl = appRoot + "/nlphub-mapper-servlet?" + parameters;
-	if(gCubeToken.length > 0)
+	if (gCubeToken.length > 0)
 		mapperUrl += "&gcube-token=" + gCubeToken;
 
 	$.ajax({
@@ -655,14 +677,14 @@ getOutputJson = function(message) {
 			hideProgress();
 			$("#reset-upload").hide();
 			savedAnnotations = "";
-			//publicLink = null;
+			// publicLink = null;
 			alert("Unexpected Error. Status: " + richiesta.status);
 		}
 	});
 }
 
 /*
- * Show the computation result 
+ * Show the computation result
  */
 showResult = function(data) {
 	$("#ner-ui").hide();
@@ -705,7 +727,7 @@ buildAnnotationList = function(list) {
 	}
 
 	$("#result-params-div").append("<form id='colored-annotations'></form>");
-	
+
 	var firstRadio = true;
 	for (var i = 0; i < annotations.length; i++) {
 		var cb = "<input type='radio' name='foo-ner-annotations' ";
@@ -713,34 +735,33 @@ buildAnnotationList = function(list) {
 			cb += "disabled ";
 			colors[i] = colorDisabled;
 		}
-		
-		if(firstRadio) {
-			if(cb.indexOf("disabled") < 0) {
+
+		if (firstRadio) {
+			if (cb.indexOf("disabled") < 0) {
 				firstRadio = false;
 				cb += "checked ";
 			}
 		}
 
-		
 		cb += "named='" + annotations[i] + "' value='" + colors[i]
 				+ "' id='color-" + i + "' class='filled-in'>";
 		cb += "<label for='color-" + i
 				+ "'><span style='font-weight:bold; color:#" + colors[i] + "'>"
 				+ annotations[i] + "</span></label><br>";
 		$("#colored-annotations").append(cb);
-		
+
 	}
-	
+
 	$("#colored-annotations :radio").change(function() {
 		if (this.checked) {
-			checkedAnnotation = this.getAttribute("named"); 
+			checkedAnnotation = this.getAttribute("named");
 			filterAlgorithmsByAnnotation(checkedAnnotation);
 			rewriteText("#" + this.value);
 		}
 	});
-	
+
 	showAnnotationsList();
-	
+
 	$("#colored-annotations :radio").change();
 }
 /*
@@ -752,55 +773,63 @@ showAnnotationsList = function() {
 	$('.collapsible').collapsible('open', 1);
 }
 
-/* 
+/*
  * build the list of check-box controls for algorithms
  */
 buildAlgortihmList = function() {
 	$("#algorithm-params-div").empty();
-	
+
 	for (var i = 0; i < jsonContent.output.result.length; i++) {
-		var cb = "<div class='alg-info-p'><input type='checkbox' name='foo-ner-algs' checked named='" 
-			+ jsonContent.output.result[i].algorithm + "' id='algorithm" + i + "'>";
-		cb += "<label class='label-alg-info' for='algorithm" + i + "'></label></div>";
-		cb += "<div class='alg-info-p' onclick='getAlgInformation(\"" + jsonContent.output.result[i].algorithm + "\")'>" +findNameByAlgorithmId(jsonContent.output.result[i].algorithm) + "</div><div class='clearfix'></div>";
-		$("#algorithm-params-div").append(cb);
-		
+		if (jsonContent.output.result[i] === undefined) {
+			console.log("No result for " + i);
+		} else {
+			var cb = "<div class='alg-info-p'><input type='checkbox' name='foo-ner-algs' checked named='"
+					+ jsonContent.output.result[i].algorithm
+					+ "' id='algorithm" + i + "'>";
+			cb += "<label class='label-alg-info' for='algorithm" + i
+					+ "'></label></div>";
+			cb += "<div class='alg-info-p' onclick='getAlgInformation(\""
+					+ jsonContent.output.result[i].algorithm
+					+ "\")'>"
+					+ findNameByAlgorithmId(jsonContent.output.result[i].algorithm)
+					+ "</div><div class='clearfix'></div>";
+			$("#algorithm-params-div").append(cb);
+		}
 	}
-	
-	$("#algorithm-params-div :checkbox").change(function () {
-		//buildCheckedAlgs();
+
+	$("#algorithm-params-div :checkbox").change(function() {
+		// buildCheckedAlgs();
 		rewriteText($("#colored-annotations :checked")[0].value);
 	});
 }
 
 getAlgInformation = function(alg) {
 	var algId = "";
-	for(var i in algorithms) {
-		if(algorithms[i].id.indexOf(alg) > 0) {
+	for ( var i in algorithms) {
+		if (algorithms[i].id.indexOf(alg) > 0) {
 			algId = algorithms[i].id;
 			break;
 		}
 	}
-	
-	if(algId == "") {
+
+	if (algId == "") {
 		alert("Invalid algorithm identifier.");
 		return;
 	}
-		
-	
+
 	var parameters = "getInfo=on";
 	parameters += "&dataminer=" + encodeURIComponent(dataMiner);
 	parameters += "&algId=" + algId;
 
 	var nlphubUrl = appRoot + "/nlphub-servlet?" + parameters;
-	if(gCubeToken.length > 0)
+	if (gCubeToken.length > 0)
 		nlphubUrl += "&gcube-token=" + gCubeToken;
 	$.ajax({
 		url : nlphubUrl,
 		type : "GET",
 		async : true,
 		success : function(data, stato) {
-			//alert(data.message);
+			// alert(data.message);
 			showPopupText(data.message);
 		},
 		error : function(richiesta, stato, errori) {
@@ -809,7 +838,6 @@ getAlgInformation = function(alg) {
 	});
 }
 
-
 showPopupText = function(text) {
 	$(".popup-text-content").empty();
 	$(".popup-text-content").append("<p>" + text + "</p>");
@@ -825,15 +853,15 @@ hidePopupText = function() {
  * Utility function
  */
 findNameByAlgorithmId = function(id) {
-	for(i in algorithms) {
-		if(algorithms[i].id.substr(algorithms[i].id.lastIndexOf(".")+1) == id)
+	for (i in algorithms) {
+		if (algorithms[i].id.substr(algorithms[i].id.lastIndexOf(".") + 1) == id)
 			return algorithms[i].name;
 	}
 	return id;
 }
 
 /*
- * Utility function 
+ * Utility function
  */
 countSubstringOccurrencies = function(string, substring) {
 	var occurrencies = 0;
@@ -849,7 +877,6 @@ countSubstringOccurrencies = function(string, substring) {
 	return occurrencies;
 }
 
-
 /*
  * Utility
  */
@@ -857,39 +884,43 @@ countSubstringOccurrencies = function(string, substring) {
 enhanceColor = function(color) {
 	var c = eval("0x" + color);
 	var hi = Math.round(c / 16);
-	if(hi < 15) {
+	if (hi < 15) {
 		hi += Math.round((15 - hi) / 1.5);
 	}
-	if(hi > 15) hi = 15;
-	return '' + hexLetters[hi] + hexLetters[c%16];
+	if (hi > 15)
+		hi = 15;
+	return '' + hexLetters[hi] + hexLetters[c % 16];
 }
 
 /*
- * Write the html paragraph <p> containing the text highlighted on annotation value
+ * Write the html paragraph <p> containing the text highlighted on annotation
+ * value
  */
 rewriteText = function(color) {
-	if(color.startsWith("#"))
+	if (color.startsWith("#"))
 		color = color.substring(1);
-	
+
 	$("#result-text-div").empty();
 	var complemetar = 0xFFFFFF - eval("0x" + color);
 	var complement = complemetar.toString(16);
-	var R = enhanceColor(complement.substring(0,2));
-	var G = enhanceColor(complement.substring(2,4));
+	var R = enhanceColor(complement.substring(0, 2));
+	var G = enhanceColor(complement.substring(2, 4));
 	var B = enhanceColor(complement.substring(4));
 	complement = "#" + R + G + B;
 	showProgress();
 	$(".hidden-div").show();
 	window.setTimeout(function() {
 		var indices = getIndices();
-		$(".hidden-div").hide();	
+		$(".hidden-div").hide();
 
 		$("#result-header-right").empty();
-		$("#result-header-right").append("<span style='color:" + color + ";'>" + checkedAnnotation + "</span> occurs " + indices.length + " times.");
+		$("#result-header-right").append(
+				"<span style='color:" + color + ";'>" + checkedAnnotation
+						+ "</span> occurs " + indices.length + " times.");
 
-		if(indices.length != 0) {
+		if (indices.length != 0) {
 			var indexedText = "";
-	
+
 			if ((typeof (indices) == 'undefined') || (indices.length == 0)) {
 				indexedText = resultText;
 				indexedText = indexedText.replace(/\n/g, "<br>");
@@ -898,7 +929,7 @@ rewriteText = function(color) {
 				$("#result-text-div").append("<p>" + indexedText + "</p>");
 				return;
 			}
-	
+
 			var t = 0;
 			var offset = 0;
 			for (var i = 0; i < indices.length; i++) {
@@ -906,7 +937,7 @@ rewriteText = function(color) {
 				var start = index[0];
 				var end = index[1];
 				indexedText += resultText.substring(t, start);
-	
+
 				var colored = "<span style='color:" + color + "; background:"
 						+ complement + "; font-weight:bold;'>"
 						+ resultText.substring(start, end) + "</span>";
@@ -915,36 +946,37 @@ rewriteText = function(color) {
 			}
 			if (t < resultText.length)
 				indexedText += resultText.substring(t);
-	
+
 			indexedText = indexedText.replace(/\n/g, "<br>");
 			$("#result-text-div").append("<p>" + indexedText + "</p>");
-		}
-		else {
+		} else {
 			$("#result-text-div").append("<p>" + resultText + "</p>");
 		}
 	}, 50);
 }
 
 filterAlgorithmsByAnnotation = function() {
-	if($("#result-params-div input[type=radio]:checked").length < 1)
+	if ($("#result-params-div input[type=radio]:checked").length < 1)
 		return;
-	var annotation = $("#result-params-div input[type=radio]:checked")[0].getAttribute("named");
+	var annotation = $("#result-params-div input[type=radio]:checked")[0]
+			.getAttribute("named");
 	var algs = $("#algorithm-params-div input[type=checkbox]");
-	for(var i=0; i< algs.length; i++) {
-		var named = $("#algorithm-params-div input[type=checkbox]")[i].getAttribute("named");
-		var annList =  algIndexedArray[named].annotations;
-		if(annList.indexOf(annotation) >= 0) {
-			$($("#algorithm-params-div input[type=checkbox]")[i]).prop("checked", true);
-		}
-		else {
-			$($("#algorithm-params-div input[type=checkbox]")[i]).prop("checked", false);
+	for (var i = 0; i < algs.length; i++) {
+		var named = $("#algorithm-params-div input[type=checkbox]")[i]
+				.getAttribute("named");
+		var annList = algIndexedArray[named].annotations;
+		if (annList.indexOf(annotation) >= 0) {
+			$($("#algorithm-params-div input[type=checkbox]")[i]).prop(
+					"checked", true);
+		} else {
+			$($("#algorithm-params-div input[type=checkbox]")[i]).prop(
+					"checked", false);
 		}
 	}
 }
 
-
 /*
- * Find if the annotation is present in the json 
+ * Find if the annotation is present in the json
  */
 checkAnnotation = function(annotation) {
 	for (var i = 0; i < jsonContent.output.result.length; i++) {
@@ -952,7 +984,7 @@ checkAnnotation = function(annotation) {
 		for (var j = 0; j < entities.length; j++) {
 			a = entities[j][annotation];
 			if (typeof a != 'undefined') {
-				if(a.length > 0)
+				if (a.length > 0)
 					return true;
 			}
 		}
@@ -970,15 +1002,15 @@ getIndices = function() {
 	for (var i = 0; i < jsonContent.output.result.length; i++) {
 		// filter on algorithm
 		var found = false;
-		for(var j=0; j<checkedAlgs.length; j++) {
-			if(checkedAlgs[j].getAttribute("named") == jsonContent.output.result[i].algorithm) {
+		for (var j = 0; j < checkedAlgs.length; j++) {
+			if (checkedAlgs[j].getAttribute("named") == jsonContent.output.result[i].algorithm) {
 				found = true;
 				break;
 			}
 		}
-		if(!found)
+		if (!found)
 			continue;
-		
+
 		var entities = jsonContent.output.result[i].entities;
 		for (var j = 0; j < entities.length; j++) {
 			// filter on annotation
@@ -993,9 +1025,9 @@ getIndices = function() {
 		}
 	}
 
-	if(indices.length == 0)
+	if (indices.length == 0)
 		return indices;
-	
+
 	var indices2 = [];
 	for (var i = 0; i < indices.length; i++) {
 		if (typeof (indices[i]) != 'undefined')
@@ -1053,13 +1085,14 @@ resizeTable = function() {
 				+ "\" value=\"" + annotations[i]
 				+ "\" checked=\"checked\"></input> <label for=\"check-" + i
 				+ "\">" + annotations[i] + "</label>";
-		if((annotations[i].toLowerCase() == "keyword") || (annotations[i].toLowerCase() == "event")) {
+		if ((annotations[i].toLowerCase() == "keyword")
+				|| (annotations[i].toLowerCase() == "event")) {
 			annotationElement = "<input type=\"checkbox\" id=\"check-" + i
-			+ "\" value=\"" + annotations[i]
-			+ "\"></input> <label for=\"check-" + i
-			+ "\">" + annotations[i] + "</label>";
+					+ "\" value=\"" + annotations[i]
+					+ "\"></input> <label for=\"check-" + i + "\">"
+					+ annotations[i] + "</label>";
 		}
-		
+
 		$("#" + rowId).append("<td>" + annotationElement + "</td>");
 	}
 }
@@ -1098,7 +1131,7 @@ window.onresize = function(event) {
 $(".ajax-file-upload-abort").on("DOMAttrModified", function(event) {
 	$(".ajax-file-upload-abort").css("display", "none");
 	if (event.attributeName == "display") { // which attribute you want to watch
-											// for changes
+		// for changes
 		$(".ajax-file-upload-abort").css("display", "none");
 	}
 });
@@ -1111,13 +1144,12 @@ buildLanguageList = function() {
 	var defaultLanguage = null;
 	for (i in languages) {
 		languages[i] = languages[i].trim();
-		languages[i] = languages[i].replace(/\w\S*/g, 
-				function(txt) {
-					return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();
-					});
-		if(languages[i] == "English")
+		languages[i] = languages[i].replace(/\w\S*/g, function(txt) {
+			return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();
+		});
+		if (languages[i] == "English")
 			defaultLanguage = languages[i];
-		
+
 		var opt = "<option value=\"" + languages[i]
 				+ "\" selected=\"selected\">" + languages[i] + "</option>";
 		if (i > 1)
@@ -1125,14 +1157,14 @@ buildLanguageList = function() {
 					+ "</option>";
 		$("#language-select").append(opt);
 	}
-	
-	if(defaultLanguage != null)
+
+	if (defaultLanguage != null)
 		$("#language-select").val(defaultLanguage);
-	
+
 	$("#language-select").on("change", function() {
 		selectAnnotationsByLanguage();
 	});
-	
+
 }
 
 /*
@@ -1160,7 +1192,8 @@ randomRGB = function() {
 	var color = '';
 	var couple = '';
 	for (var i = 0; i < 3; i++) {
-		couple = '' + hexLetters[Math.floor(Math.random() * 10)] + hexLetters[Math.floor(Math.random() * 16)];
+		couple = '' + hexLetters[Math.floor(Math.random() * 10)]
+				+ hexLetters[Math.floor(Math.random() * 16)];
 		color += couple;
 	}