Java tutorial
/* ************************************************************************ ******************* CANADIAN ASTRONOMY DATA CENTRE ******************* ************** CENTRE CANADIEN DE DONNES ASTRONOMIQUES ************** * * (c) 2009. (c) 2009. * Government of Canada Gouvernement du Canada * National Research Council Conseil national de recherches * Ottawa, Canada, K1A 0R6 Ottawa, Canada, K1A 0R6 * All rights reserved Tous droits rservs * * NRC disclaims any warranties, Le CNRC dnie toute garantie * expressed, implied, or nonce, implicite ou lgale, * statutory, of any kind with de quelque nature que ce * respect to the software, soit, concernant le logiciel, * including without limitation y compris sans restriction * any warranty of merchantability toute garantie de valeur * or fitness for a particular marchande ou de pertinence * purpose. NRC shall not be pour un usage particulier. * liable in any event for any Le CNRC ne pourra en aucun cas * damages, whether direct or tre tenu responsable de tout * indirect, special or general, dommage, direct ou indirect, * consequential or incidental, particulier ou gnral, * arising from the use of the accessoire ou fortuit, rsultant * software. Neither the name de l'utilisation du logiciel. Ni * of the National Research le nom du Conseil National de * Council of Canada nor the Recherches du Canada ni les noms * names of its contributors may de ses participants ne peuvent * be used to endorse or promote tre utiliss pour approuver ou * products derived from this promouvoir les produits drivs * software without specific prior de ce logiciel sans autorisation * written permission. pralable et particulire * par crit. * * This file is part of the Ce fichier fait partie du projet * OpenCADC project. OpenCADC. * * OpenCADC is free software: OpenCADC est un logiciel libre ; * you can redistribute it and/or vous pouvez le redistribuer ou le * modify it under the terms of modifier suivant les termes de * the GNU Affero General Public la GNU Affero General Public * License as published by the License? telle que publie * Free Software Foundation, par la Free Software Foundation * either version 3 of the : soit la version 3 de cette * License, or (at your option) licence, soit ( votre gr) * any later version. toute version ultrieure. * * OpenCADC is distributed in the OpenCADC est distribu * hope that it will be useful, dans lespoir quil vous * but WITHOUT ANY WARRANTY; sera utile, mais SANS AUCUNE * without even the implied GARANTIE : sans mme la garantie * warranty of MERCHANTABILITY implicite de COMMERCIALISABILIT * or FITNESS FOR A PARTICULAR ni dADQUATION UN OBJECTIF * PURPOSE. See the GNU Affero PARTICULIER. Consultez la Licence * General Public License for Gnrale Publique GNU Affero * more details. pour plus de dtails. * * You should have received Vous devriez avoir reu une * a copy of the GNU Affero copie de la Licence Gnrale * General Public License along Publique GNU Affero avec * with OpenCADC. If not, see OpenCADC ; si ce nest * <http://www.gnu.org/licenses/>. pas le cas, consultez : * <http://www.gnu.org/licenses/>. * * $Revision: 4 $ * ************************************************************************ */ package ca.nrc.cadc.conformance.uws; import java.io.BufferedInputStream; import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.net.InetAddress; import java.net.UnknownHostException; import java.util.Arrays; import java.util.Dictionary; import java.util.Enumeration; import java.util.List; import org.jdom2.Document; import org.jdom2.output.XMLOutputter; import com.meterware.httpunit.WebRequest; import com.meterware.httpunit.WebResponse; public abstract class Util { public static final String[] PHASES = { "PENDING", "QUEUED", "EXECUTING", "COMPLETED", "ERROR", "ABORTED" }; public static boolean validatePhase(String value) { for (int i = 0; i < PHASES.length; i++) { if (PHASES[i].equals(value)) return true; } return false; } public static String getHostName() { try { return InetAddress.getLocalHost().getHostName(); } catch (UnknownHostException e) { throw new RuntimeException("Unable to determine hostname for localhost: " + e.getMessage()); } } public static String getResponseHeaders(WebResponse response) { StringBuilder sb = new StringBuilder(); sb.append("Response headers:"); sb.append("\r\n"); String[] headers = response.getHeaderFieldNames(); for (int i = 0; i < headers.length; i++) { sb.append("\t"); sb.append(headers[i]); sb.append("="); sb.append(response.getHeaderField(headers[i])); sb.append("\r\n"); } return sb.toString(); } public static String getRequestHeaders(WebRequest request) { StringBuilder sb = new StringBuilder(); sb.append("Request headers:"); sb.append("\r\n"); Dictionary headers = request.getHeaders(); Enumeration keys = headers.keys(); while (keys.hasMoreElements()) { String key = (String) keys.nextElement(); String value = (String) headers.get(key); sb.append("\t"); sb.append(key); sb.append(" = "); sb.append(value); sb.append("\r\n"); } return sb.toString(); } public static String getRequestParameters(WebRequest request) { StringBuilder sb = new StringBuilder(); sb.append("Request parameters:"); sb.append("\r\n"); String[] headers = request.getRequestParameterNames(); for (int i = 0; i < headers.length; i++) { sb.append("\t"); sb.append(headers[i]); sb.append("="); sb.append(request.getParameter(headers[i])); sb.append("\r\n"); } return sb.toString(); } public static String inputStreamToString(InputStream inputStream) throws IOException { BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream)); StringBuilder sb = new StringBuilder(); String line = null; try { while ((line = reader.readLine()) != null) { sb.append(line); sb.append("\n"); } } finally { try { inputStream.close(); } catch (IOException e) { } } return sb.toString(); } /** * Get a list of XML file with the given filename prefix in the given directory. * * @param directoryPath * @param prefix, file name prefix * @return * @throws IOException * @author zhangsa */ public static List<File> loadXmlFileList(String directoryPath, String prefix) throws IOException { File directory = new File(directoryPath); if (!directory.canRead()) throw new IOException(String.format("Cannot read directory: [%s]", directoryPath)); XmlFilenameFilter filter = new XmlFilenameFilter(prefix); File[] fileArray = directory.listFiles(filter); return Arrays.asList(fileArray); } /** * Get the XML string of an XML Document object. * * @param document * @return String * @author zhangsa */ public static String getXmlString(Document document) { XMLOutputter xmlOutputter = new XMLOutputter(); return xmlOutputter.outputString(document); } /** * Read File as String. * * @param file * @return * @throws java.io.IOException */ public static String readFileAsString(File file) throws java.io.IOException { byte[] buffer = new byte[(int) file.length()]; BufferedInputStream f = null; try { f = new BufferedInputStream(new FileInputStream(file)); f.read(buffer); } finally { if (f != null) try { f.close(); } catch (IOException ignored) { } } return new String(buffer); } }