Java tutorial
package it.skymedia.idolTunnel; import java.io.ByteArrayInputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.StringWriter; import java.nio.charset.StandardCharsets; import java.util.ArrayList; import java.util.HashMap; import java.util.Map; import java.util.Properties; import java.util.logging.Logger; import javax.ejb.Startup; import javax.ejb.Stateless; import javax.jws.WebMethod; import javax.jws.WebService; import javax.xml.parsers.DocumentBuilder; import javax.xml.parsers.DocumentBuilderFactory; import javax.xml.parsers.ParserConfigurationException; import javax.xml.transform.OutputKeys; import javax.xml.transform.Transformer; import javax.xml.transform.TransformerConfigurationException; import javax.xml.transform.TransformerException; import javax.xml.transform.TransformerFactory; import javax.xml.transform.TransformerFactoryConfigurationError; import javax.xml.transform.dom.DOMSource; import javax.xml.transform.stream.StreamResult; import javax.xml.xpath.XPath; import javax.xml.xpath.XPathConstants; import javax.xml.xpath.XPathExpressionException; import javax.xml.xpath.XPathFactory; import org.apache.commons.lang.StringUtils; import org.apache.commons.lang.math.NumberUtils; import org.apache.http.impl.client.DefaultHttpClient; import org.w3c.dom.Document; import org.w3c.dom.Element; import org.w3c.dom.Node; import org.w3c.dom.NodeList; import org.xml.sax.SAXException; import com.autonomy.aci.client.services.AciConstants; import com.autonomy.aci.client.services.AciService; import com.autonomy.aci.client.services.impl.AciServiceImpl; import com.autonomy.aci.client.services.impl.ByteArrayProcessor; import com.autonomy.aci.client.services.impl.DocumentProcessor; import com.autonomy.aci.client.transport.AciParameter; import com.autonomy.aci.client.transport.AciServerDetails; import com.autonomy.aci.client.transport.impl.AciHttpClientImpl; import com.autonomy.aci.client.transport.impl.BteaEncryptionCodec; import com.autonomy.aci.client.util.AciParameters; /** * An extremely basic OEM-key cyphered tunnel, useful * to connect to IDOL Server, by using Java ACI NG APIs. */ @WebService(serviceName = "IdolOEMConnection") @Stateless @Startup public class IdolOEMConnection { /** * relative path to the config properties file */ private static String SYSTEM_PROPERTY_CONFIG_PATH = "idol.config_dir"; /** * the properties file containing configuration parameters */ private static String DEFAULT_CONFIG_PATH = "idol_config"; private static String PROPERTY_FILENAME = "idolTunnel.properties"; /** * properties means configuration paramenters */ private static Properties properties; private static String CONFIG_BASE; private static final Logger log = Logger.getLogger(IdolOEMConnection.class.getName()); private static String encryptionKey = ""; /** * Initialization of static properties */ static { //debug: firstly prints some jvm system properties Properties p = System.getProperties(); log.info("\tuser.dir =" + p.get("user.dir")); // Enumeration keys = p.keys(); // while (keys.hasMoreElements()) { // String key = (String)keys.nextElement(); // String value = (String)p.get(key); // System.out.println(key + ": " + value); // } try { String configFilePath = System.getProperty(SYSTEM_PROPERTY_CONFIG_PATH); if (configFilePath == null || configFilePath.isEmpty()) configFilePath = DEFAULT_CONFIG_PATH; /*La path del file di properties dell'appplicazione da adesso nella java.user.dir */ CONFIG_BASE = System.getProperty("user.dir") + File.separator + configFilePath + File.separator + PROPERTY_FILENAME; log.info("\tCONFIG_BASE is: " + CONFIG_BASE); properties = new Properties(); //properties.load(getClass().getResourceAsStream("/config.properties")); properties.load(getPathAsStreamFrom(CONFIG_BASE)); } catch (IllegalArgumentException iae) { System.out.println(iae.getLocalizedMessage()); System.out.println("IAE: Occorre specificare la variabile di sistema: " + SYSTEM_PROPERTY_CONFIG_PATH + ", che deve contenere la config_path dell'applicazione"); } catch (NullPointerException npe) { System.out.println(npe.getLocalizedMessage()); System.out.println("NPE: Occorre specificare la variabile di sistema: " + SYSTEM_PROPERTY_CONFIG_PATH + ", che deve contenere la config_path dell'applicazione"); } catch (IOException e) { System.out.println(e.getLocalizedMessage()); System.out.println("IOE: Occorre specificare la variabile di sistema: " + SYSTEM_PROPERTY_CONFIG_PATH + ", che deve contenere la config_path dell'applicazione"); } }; /** * Ritorna un FileInputStream relativo al file di configurazione dell'applicazione * @param eConfPath * @return an InputStream representing the reader from a filesystem config file */ private static FileInputStream getPathAsStreamFrom(String eConfPath) { if (eConfPath.isEmpty()) { return null; } try { FileInputStream fis = new FileInputStream(new File(eConfPath)); return fis; } catch (Exception e) { return null; } } /** * aciService means the connection to Autonomy IDOL Server */ private AciService aciService = null; /** * Constructor: initialization of non-static properties, * then testing comnection and some service actions to an HP IDOL Server */ public IdolOEMConnection() { final String host = StringUtils.defaultIfEmpty(properties.getProperty("host"), "localhost"); final int aciPort = NumberUtils.toInt(properties.getProperty("aciPort"), 9000); //final int indexPort = NumberUtils.toInt(properties.getProperty("indexPort"), 9001); try { AciServerDetails sd = new AciServerDetails(host, aciPort); if (Boolean.parseBoolean((String) properties.get("isOEMLicensed"))) { encryptionKey = (String) properties.get("encryptionKey"); sd.setEncryptionCodec(new BteaEncryptionCodec(encryptionKey)); } // Construct the AciService to use... aciService = new AciServiceImpl(new AciHttpClientImpl(new DefaultHttpClient()), sd); /* TEST ACI CONNECTION */ System.out.println("You have successfully communicated to an " + getversion()); /* try action=GetLicenseInfo */ System.out.println("\n\t*** License Info ***\n" + getlicenseinfo("json")); // try action=GetStatus... System.out.println("\n\t*** GetStatus of the server ***\n" + getstatus()); /* try action=GetRequestsLog */ System.out.println("\n\t*** GRL ***\n" + grl(50L)); } catch (Exception e) { log.severe(e.getLocalizedMessage() + "\n"); e.printStackTrace(); } } /** * requests the action=grl for the more recent 'tail' requests * * @return: String - an HTML log page */ @WebMethod(operationName = "grl") public String grl(long tail) { AciParameters parms = new AciParameters(); parms.add(new AciParameter("action", "grl")); parms.add(new AciParameter("openLinks", "on")); parms.add(new AciParameter("tail", tail)); //response = this.aciService.executeAction(parms, new DocumentProcessor()); // executing action... String autnResponse = jsonResponse(this.aciService.executeAction(parms, new ByteArrayProcessor())); return autnResponse; } /** * executes the IDOL Server GetVersion action * @return a String containing the Json compact response * * @throws XPathExpressionException */ @WebMethod(operationName = "getversion") public String getversion() { // We'll issue a GetVersion action and use the supplied DOM Document processor to process the response... Document response = this.aciService.executeAction(new AciParameters(AciConstants.ACTION_GET_VERSION), new DocumentProcessor()); // Use XPath to pull out the value of the field the contains the type of the ACI server... try { final XPath xpath = XPathFactory.newInstance().newXPath(); return (String) xpath.evaluate("/autnresponse/responsedata/producttypecsv", response, XPathConstants.STRING) + ", version: " + (String) xpath.evaluate("/autnresponse/responsedata/version", response, XPathConstants.STRING) + " - " + (String) xpath.evaluate("/autnresponse/responsedata/aciversion", response, XPathConstants.STRING); } catch (XPathExpressionException xpe) { xpe.printStackTrace(); return "IdolOEMTunnel - getversion: Error Occurred - not a valid XML autnresponse"; } catch (Exception e) { e.printStackTrace(); return "IdolOEMTunnel - getversion: unexpected Error Occurred"; } } /** * executes the IDOL Server GetLicenseInfo action * <br/> * accepts the response format in: XML or Json * @return a String containing the XML/Json compact response * * @throws XPathExpressionException */ @WebMethod(operationName = "getlicenseinfo") public String getlicenseinfo(String format) { // We'll issue a GetStatus action and use the supplied DOM/Json Document processor to process the response... AciParameters parms = new AciParameters(AciConstants.ACTION_GET_LICENSE_INFO); parms.add(new AciParameter(AciConstants.PARAM_RESPONSE_FORMAT, format)); //response = this.aciService.executeAction(parms, new DocumentProcessor()); try { // executing action... String autnResponse = format.toLowerCase().equals("xml") ? xmlResponse(this.aciService.executeAction(parms, new DocumentProcessor())) : // XML jsonResponse(this.aciService.executeAction(parms, new ByteArrayProcessor())); // Json return autnResponse; } catch (Exception e) { e.printStackTrace(); return "IdolOEMTunnel - getlicenseinfo: unexpected Error Occurred"; } } /** * executes the IDOL Server GetStatus action * <br/> * accepts the response format in: XML or Json * * @return a String containing the XML/Json compact response */ @WebMethod(operationName = "getstatus") public String getstatus() { // We'll issue a GetStatus action and use the supplied DOM/Json Document processor to process the response... AciParameters parms = new AciParameters(AciConstants.ACTION_GET_STATUS); parms.add(new AciParameter(AciConstants.PARAM_TEMPLATE, "GetStatusForm")); parms.add(new AciParameter(AciConstants.PARAM_FORCE_TEMPLATE_REFRESH, "true")); //parms.add(new AciParameter(AciConstants.PARAM_RESPONSE_FORMAT, format) ); // executing action... String autnResponse = jsonResponse(this.aciService.executeAction(parms, new ByteArrayProcessor())); return autnResponse; } /** * accepts every ACI action and the return format: XML or Json * * @return a List<Hit> containing one or more Hit objects (autn:hit) */ @WebMethod(operationName = "autnResponseAsList") public ArrayList<Hit> autnResponseAsList(Map<String, String> pList, String format) { String autnresposne = autnResponseAsString(pList, format); ArrayList<Hit> result = getQueryHitsMap(autnresposne); return result; } /** * accepts every ACI action and the return format: XML or Json * * @return a String containing the XML/Json compact response */ @WebMethod(operationName = "autnResponseAsString") public String autnResponseAsString(Map<String, String> pList, String format) { if (!isActionGood(pList)) return "Badly Formatted Request"; AciParameters parms = new AciParameters(); for (String key : pList.keySet()) { parms.add(new AciParameter(key, pList.get(key))); } parms.add(new AciParameter(AciConstants.PARAM_RESPONSE_FORMAT, format)); try { if (format == null || format.length() < 3) format = "xml"; // executing action... String autnResponse = format.toLowerCase().equals("xml") ? xmlResponse(this.aciService.executeAction(parms, new DocumentProcessor())) : // XML jsonResponse(this.aciService.executeAction(parms, new ByteArrayProcessor())); // Json return new String(autnResponse); } catch (Exception e) { e.printStackTrace(); return "IdolOEMTunnel - aciRequest: unexpected Error Occurred - maybe Badly formatted ACI action params?"; } } /** * Method that catches response node from xml autnresponse * * @return a XML Document */ @WebMethod(operationName = "getQueryResponse") public String getQueryResponse(String xml) { String result = ""; Document document = getDocumentFrom(xml); NodeList response = document.getElementsByTagName("response"); Node resp = response.item(0); result = resp.getFirstChild().getNodeValue(); return result; } /** * Method that returns spellcheck nodes from the xml autnresponse * <br/> * Notice that the proper action should have: spellCheck=true * and print=noresults params * * @return an String[], represented by a List<String> in the WSDL */ @WebMethod(operationName = "getSpellCheck") public String[] getSpellCheck(Map<String, String> action) { String autnresponse = this.autnResponseAsString(action, "xml"); return getSpellCheckFields(autnresponse); } /** * Method that extracts spellcheck nodes from the xml autnresponse * * @return an String[], represented by a List<String> in the WSDL */ @WebMethod(operationName = "getSpellCheckFields") public String[] getSpellCheckFields(String xml) { String[] result = { "spellcheck returned no corrected terms", "" }; Document document = getDocumentFrom(xml); NodeList corrections = document.getElementsByTagName("autn:spelling"); if (corrections == null || corrections.item(0) == null) return result; NodeList correctedQuery = document.getElementsByTagName("autn:spellingquery"); if (correctedQuery == null || correctedQuery.item(0) == null) return result; result[0] = "forse intedevi: " + corrections.item(0).getFirstChild().getNodeValue(); result[1] = "cerca invece: " + correctedQuery.item(0).getFirstChild().getNodeValue(); return result; } /** * Method that extracts spellcheck nodes from the xml autnresponse * * @return an String[], represented by a List<String> in the WSDL */ @WebMethod(operationName = "getHitIndexedContent") public String getHitIndexedContent(Map<String, String> hit) { String result = "no content indexed"; if (hit == null || hit.isEmpty() || hit.size() < 1) return result; if (hit.get("autn:content") != null) result = hit.get("autn:content"); return result; } /** * Method that returns a List<Map> where every map contains hit's fields * and the autn:content text, BUT it do not contains <DOCUMENT> structure ! * <br/> * Notice that: this method M^UST be invoked only for a print=indexText query ! * * @return ArrayList<Hit> list of Hit, each containing a Map (of dreFields) * */ @WebMethod(operationName = "getQueryHitsNoDocumentMap") public ArrayList<Hit> getQueryHitsNoDocumentMap(String xml) { ArrayList<Hit> result = new ArrayList<Hit>(); Document document = getDocumentFrom(xml); NodeList temp = null; temp = document.getElementsByTagName("response"); String response = (temp.getLength() > 0) ? document.getElementsByTagName("response").item(0).getTextContent() : "FAILURE"; temp = document.getElementsByTagName("autn:numhits"); String numHits = (temp.getLength() > 0) ? document.getElementsByTagName("autn:numhits").item(0).getTextContent() : "0"; temp = document.getElementsByTagName("autn:totalhits"); String totalHits = (temp.getLength() > 0) ? document.getElementsByTagName("autn:totalhits").item(0).getTextContent() : "0"; NodeList hits = document.getElementsByTagName("autn:hit"); for (int i = 0; i < hits.getLength(); i++) { HashMap<String, String> map = new HashMap<String, String>(); Node nodo = hits.item(i); NodeList hitChilds = nodo.getChildNodes(); for (int j = 0; j < hitChilds.getLength(); j++) { Node n = hitChilds.item(j); if (n.getNodeType() == Node.ELEMENT_NODE) { Element e2 = (Element) n; if (!e2.getNodeName().equals("autn:content")) { String value = ""; if (map.containsKey(e2.getNodeName())) { value = map.get(e2.getNodeName()) + "," + e2.getTextContent(); map.put(e2.getNodeName(), value); } else { map.put(e2.getNodeName(), e2.getTextContent()); } } else { if (e2.getNodeType() == Node.ELEMENT_NODE) { String nodeValue = e2.getFirstChild().getTextContent(); //Element el = (Element) content; String value = ""; if (map.containsKey(e2.getNodeName())) { value = map.get(e2.getNodeName()) + "," + nodeValue; map.put(e2.getNodeName(), value); } else { map.put(e2.getNodeName(), nodeValue); } } } } } Hit hit = new Hit(map); hit.getDreFields().put("response", response); hit.getDreFields().put("numhits", numHits); hit.getDreFields().put("totalhits", totalHits); result.add(hit); } return result; } /** * Method return List<Map> when every map contains hit fields * * @return ArrayList<Hit> list of Hit, each containing a Map (of dreFileds) * */ @WebMethod(operationName = "getQueryHitsMap") public ArrayList<Hit> getQueryHitsMap(String xml) { ArrayList<Hit> result = new ArrayList<Hit>(); Document document = getDocumentFrom(xml); NodeList temp = null; temp = document.getElementsByTagName("response"); String response = (temp.getLength() > 0) ? document.getElementsByTagName("response").item(0).getTextContent() : "FAILURE"; temp = document.getElementsByTagName("autn:numhits"); String numHits = (temp.getLength() > 0) ? document.getElementsByTagName("autn:numhits").item(0).getTextContent() : "0"; temp = document.getElementsByTagName("autn:totalhits"); String totalHits = (temp.getLength() > 0) ? document.getElementsByTagName("autn:totalhits").item(0).getTextContent() : "0"; NodeList hits = document.getElementsByTagName("autn:hit"); for (int i = 0; i < hits.getLength(); i++) { HashMap<String, String> map = new HashMap<String, String>(); Node nodo = hits.item(i); NodeList hitChilds = nodo.getChildNodes(); for (int j = 0; j < hitChilds.getLength(); j++) { Node n = hitChilds.item(j); if (n.getNodeType() == Node.ELEMENT_NODE) { Element e2 = (Element) n; if (!e2.getNodeName().equals("autn:content")) { String value = ""; if (map.containsKey(e2.getNodeName())) { value = map.get(e2.getNodeName()) + "," + e2.getTextContent(); map.put(e2.getNodeName(), value); } else { map.put(e2.getNodeName(), e2.getTextContent()); } } else { NodeList content = e2.getElementsByTagName("DOCUMENT").item(0).getChildNodes(); for (int z = 0; z < content.getLength(); z++) { Node d = content.item(z); if (d.getNodeType() == Node.ELEMENT_NODE) { Element el = (Element) d; String value = ""; if (map.containsKey(el.getNodeName())) { value = map.get(el.getNodeName()) + "," + el.getTextContent(); map.put(el.getNodeName(), value); } else { map.put(el.getNodeName(), el.getTextContent()); } } } } } } Hit hit = new Hit(map); hit.getDreFields().put("response", response); hit.getDreFields().put("numhits", numHits); hit.getDreFields().put("totalhits", totalHits); result.add(hit); } return result; } private Document getDocumentFrom(String xml) { DocumentBuilderFactory documentFactory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = null; Document document = null; try { InputStream is = new ByteArrayInputStream(xml.getBytes(StandardCharsets.UTF_8)); builder = documentFactory.newDocumentBuilder(); document = builder.parse(is); } catch (ParserConfigurationException e) { e.printStackTrace(); } catch (SAXException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return document; } /** * checks if action parameter exists */ private boolean isActionGood(Map<String, String> pList) { String[] cases = { "action", "a", "Action", "ACTION" }; for (String key : cases) { if (pList.containsKey(key)) return true; } return false; } /** * @param autnresponse * @return the ACI autnresponse in Json compact format or * any other byte-array format */ private String jsonResponse(byte[] autnresponse) { String result = ""; result = new String(autnresponse); return result; } /** * @param response * @return the ACI aurtnresponse in XML compact format */ private String xmlResponse(Document response) { String result = ""; StreamResult xmlOutput = new StreamResult(new StringWriter()); Transformer transformer; try { transformer = TransformerFactory.newInstance().newTransformer(); transformer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes"); transformer.transform(new DOMSource(response.getDocumentElement()), xmlOutput); result = xmlOutput.getWriter().toString(); } catch (TransformerConfigurationException e) { e.printStackTrace(); return "Error occurred parsing XML-formatted autnresponse - Badly formatted request"; } catch (TransformerFactoryConfigurationError e) { e.printStackTrace(); return "Error occurred parsing XML-formatted autnresponse - Badly formatted request"; } catch (TransformerException e) { e.printStackTrace(); return "Error occurred parsing XML-formatted autnresponse - Badly formatted request"; } return result; } /** * a main useful application for debug * @param args * @throws IOException */ public static void main(final String[] args) throws IOException { new IdolOEMConnection(); } }