public static Result start() {
java.util.Map<String, String[]> map = request().body().asFormUrlEncoded();
List<String> terms = new ArrayList<>(map.size());
for (int i = 0; i < map.size(); i++) {
String key = "terms[" + i + "]";
if (map.containsKey(key)) {
String[] values = map.get(key);
if ((values != null) && (values.length >= 1)) {
terms.add(values[0]);
}
}
}
StreamConfig config = getConfig();
config.putTerms(terms);
config.update();
StringBuilder sb = new StringBuilder();
for (String t : terms) {
sb.append(t);
sb.append(", ");
}
sb.delete(sb.length() - 2, sb.length());
try {
startStream(terms);
flash("success", "Twitter stream started (" + sb.toString() + ")");
} catch (TwitterException e) {
Logger.info("Error starting twitter stream", e);
flash("error", "Error starting Twitter stream" + e.getMessage());
}
return redirect(routes.Streams.listAll());
}
private List<Medication> searchRegnr(String lang, String regnr) {
List<Medication> med_auth = new ArrayList<>();
try {
Connection conn = lang.equals("de") ? german_db.getConnection() : french_db.getConnection();
Statement stat = conn.createStatement();
String query =
"select "
+ SHORT_TABLE
+ " from "
+ DATABASE_TABLE
+ " where "
+ KEY_REGNRS
+ " like "
+ "'%, "
+ regnr
+ "%' or "
+ KEY_REGNRS
+ " like "
+ "'"
+ regnr
+ "%'";
ResultSet rs = stat.executeQuery(query);
if (rs != null) {
while (rs.next()) {
med_auth.add(cursorToShortMedi(rs));
}
}
conn.close();
} catch (SQLException e) {
System.err.println(">> SqlDatabase: SQLException in searchRegnr!");
}
return med_auth;
}
private List<Medication> searchName(String lang, String name) {
List<Medication> med_titles = new ArrayList<>();
try {
Connection conn = lang.equals("de") ? german_db.getConnection() : french_db.getConnection();
Statement stat = conn.createStatement();
ResultSet rs;
// Allow for search to start inside a word...
if (name.length() > 2) {
String query =
"select "
+ SHORT_TABLE
+ " from "
+ DATABASE_TABLE
+ " where "
+ KEY_TITLE
+ " like "
+ "'"
+ name
+ "%' or "
+ KEY_TITLE
+ " like "
+ "'%"
+ name
+ "%'";
rs = stat.executeQuery(query);
} else {
String query =
"select "
+ SHORT_TABLE
+ " from "
+ DATABASE_TABLE
+ " where "
+ KEY_TITLE
+ " like "
+ "'"
+ name
+ "%'";
rs = stat.executeQuery(query);
}
if (rs != null) {
while (rs.next()) {
med_titles.add(cursorToShortMedi(rs));
}
}
conn.close();
} catch (SQLException e) {
System.err.println(">> SqlDatabase: SQLException in searchName for " + name);
}
return med_titles;
}
public TweetListener(List<String> terms, Client esClient, String esIndex, String esType) {
this.terms = terms;
this.esClient = esClient;
StringBuilder query = new StringBuilder();
for (int i = 0; i < terms.size(); i++) {
if (i > 0) query.append("|");
// query.append("(").append(Pattern.quote(terms.get(i))).append(")");
// query.append("(").append(terms.get(i)).append(")");
query.append(terms.get(i));
}
Logger.info("Query match pattern: " + query.toString());
this.matchPattern = Pattern.compile(query.toString(), Pattern.CASE_INSENSITIVE);
Logger.info("Query match pattern: " + matchPattern.toString());
}
private static void startStream(List<String> terms) throws TwitterException {
if (twitter != null) {
twitter.cleanUp();
}
if (esClient != null) {
esClient.close();
esClient = null;
}
play.Configuration pconf = Play.application().configuration();
String elasticSearchCluster = pconf.getString("tweet.elasticsearch.cluster.name");
if (elasticSearchCluster != null) {
Logger.info("Configuring ElasticSearch...");
Settings settings =
ImmutableSettings.settingsBuilder().put("cluster.name", elasticSearchCluster).build();
esClient =
new TransportClient(settings)
.addTransportAddress(
new InetSocketTransportAddress(
pconf.getString("tweet.elasticsearch.transport.host"),
pconf.getInt("tweet.elasticsearch.transport.port")));
} else {
esClient = null;
}
twitter4j.conf.Configuration tconf = Application.getTwitterConfiguration();
TwitterStreamFactory tf = new TwitterStreamFactory(tconf);
twitter = tf.getInstance();
StatusListener l =
new TweetListener(
terms,
esClient,
pconf.getString("tweet.elasticsearch.index"),
pconf.getString("tweet.elasticsearch.type"));
twitter.addListener(l);
String[] tracks = new String[terms.size()];
StringBuffer termsString = new StringBuffer();
for (int i = 0; i < terms.size(); i++) {
tracks[i] = terms.get(i);
if (i != 0) termsString.append(",");
termsString.append(terms.get(i));
}
FilterQuery q = new FilterQuery().track(tracks);
twitter.filter(q);
Logger.info("Starting listening for tweets using terms " + termsString.toString() + "...");
}
private static StreamConfig getConfig() {
List<StreamConfig> configs = StreamConfig.find.findList();
if (configs.size() > 1) {
Logger.error("Multiple stream configurations present!");
}
StreamConfig config;
if (configs.isEmpty()) {
String[] tracks = new String[3];
tracks[0] = "nl-alert";
tracks[1] = "nlalert";
tracks[2] = "\"nl alert\"";
config = new StreamConfig(tracks);
config.save();
} else {
config = configs.get(0);
}
return config;
}
/**
* Utility method loads all of the workflow form definitions from yaml files contained in the
* workflow directory.
*
* @return
*/
public static List<FormDefinition> loadWorkflowFormDefinitions() {
// List<FormDefinition> formDefs = new ArrayList<>();
//
// URL path = Play.application().classloader().getResource(WORKFLOWS_PATH);
// try {
// File dir = new File(path.toURI());
//
// File[] workflows = dir.listFiles(new FilenameFilter() {
// public boolean accept(File dir, String name) {
// return name.toLowerCase().endsWith(".yaml");
// }
// });
//
// for (File file : workflows) {
// formDefs.add(loadFormDefinition(file.getAbsolutePath()));
// }
// } catch (URISyntaxException e) { /* Should not occur */ }
List<FormDefinition> formDefs = new ArrayList<>();
Collection<config.WorkflowConfig> workflows = ConfigManager.getInstance().getWorkflowConfigs();
for (config.WorkflowConfig workflow : workflows) {
FormDefinition formDef = new FormDefinition();
formDef.name = workflow.getName();
formDef.title = workflow.getTitle();
formDef.yamlFile = workflow.getYaml();
formDef.documentation = workflow.getDocumentation();
formDef.instructions = workflow.getInstructions();
formDef.summary = workflow.getSummary();
for (ParameterConfig parameter : workflow.getParameters()) {
if (parameter.isTyped()) {
String type = parameter.getType();
switch (type) {
case "text":
TextField textField = new TextField();
textField.name = parameter.getName();
textField.label = parameter.getLabel();
textField.tooltip = parameter.getDescription();
formDef.addField(textField);
break;
case "select":
SelectField selectField = new SelectField();
selectField.name = parameter.getName();
selectField.label = parameter.getLabel();
selectField.options = parameter.getOptions();
selectField.tooltip = parameter.getDescription();
formDef.addField(selectField);
break;
case "upload":
FileInput fileInput = new FileInput();
fileInput.name = parameter.getName();
fileInput.label = parameter.getLabel();
fileInput.tooltip = parameter.getDescription();
formDef.addField(fileInput);
break;
}
}
}
formDefs.add(formDef);
}
return formDefs;
}
