Add the VOTable controller.

Nathanael Jourdane
1 parent 2e9b5549
Showing 1 changed file with 101 additions and 0 deletions Show diff stats
src/main/java/eu/omp/irap/vespa/epntapclient/votable/controller/VOTableController.java
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+/**
+ * This file is a part of EpnTAPClient.
+ * This program aims to provide EPN-TAP support for software clients, like CASSIS spectrum analyzer.
+ * See draft specifications: https://voparis-confluence.obspm.fr/pages/viewpage.action?pageId=559861
+ * Copyright (C) 2016 Institut de Recherche en Astrophysique et Planétologie.
+ * 
+ * This program is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or (at your option) any later
+ * version. This program is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details. You should have received a copy of
+ * the GNU General Public License along with this program. If not, see
+ * <http://www.gnu.org/licenses/>.
+ */
+package eu.omp.irap.vespa.epntapclient.votable.controller;
+
+import eu.omp.irap.vespa.epntapclient.votable.model.Table;
+import eu.omp.irap.vespa.epntapclient.votable.model.VOTABLE;
+import eu.omp.irap.vespa.epntapclient.votable.view.VOTableView;
+
+/**
+ * @author N. Jourdane
+ */
+public class VOTableController {
+
+	/** The view of the VOTable */
+	VOTableView view;
+
+	/** The VOTable model */
+	VOTABLE voTable;
+
+	/**
+	 * Method constructor
+	 * 
+	 * @param voTablePath The path of the VOTable XML file.
+	 */
+	public VOTableController(String voTablePath) {
+		view = new VOTableView(this);
+
+		try {
+			voTable = VOTableParser.parseVOTable(voTablePath);
+			fillView();
+		} catch (Exception e) {
+			view.displayError("VOTable can not be displayed", e.getMessage());
+		}
+	}
+
+	/**
+	 * Method constructor
+	 * 
+	 * @param targetURL The url of the registry to communicate (ie. "http://reg.g-vo.org").
+	 * @param serviceType The type of service (ie. "tap").
+	 * @param queryLanguage The language used for the queries (ie. "ADQL").
+	 * @param query The query to ask to the registry.
+	 */
+	public VOTableController(String targetURL, String serviceType, String queryLanguage,
+			String query) {
+		view = new VOTableView(this);
+		String voTablePath;
+
+		try {
+			voTablePath = VOTableConnection.sendQuery(targetURL, serviceType, queryLanguage,
+					query);
+			voTable = VOTableParser.parseVOTable(voTablePath);
+			fillView();
+		} catch (Exception e) {
+			view.displayError("VOTable can not be displayed", e.getMessage());
+		}
+	}
+
+	/**
+	 * Fill the view with the VOTable data.
+	 * 
+	 * @throws Exception If there are more than 1 resource or table in the VOTable.
+	 */
+	private void fillView() throws Exception {
+		// TODO: Traiter le cas où il y a plus d'une ressource et d'une table.
+		if (voTable.getRESOURCE().size() != 1) {
+			throw new Exception("VOTable with more than one resource are not yet supported.");
+		}
+		if (voTable.getRESOURCE().get(0).getLINKAndTABLEOrRESOURCE().size() != 1) {
+			throw new Exception("VOTable with more than one table are not yet supported.");
+		}
+		Table table = (Table) (voTable.getRESOURCE().get(0).getLINKAndTABLEOrRESOURCE().get(0));
+		try {
+			VOTableDataParser dataParser = new VOTableDataParser(table);
+			view.buildArray(dataParser.getColumnsName(), dataParser.getDataArray());
+		} catch (Exception e) {
+			view.displayError("VOTable can not be displayed",
+					"Can not parse VOTable data.\nReason:\n" + e.getMessage());
+		}
+	}
+
+	/**
+	 * @return The view of the VOTable.
+	 */
+	public VOTableView getView() {
+		return view;
+	}
+}