Mercurial > hg > mpdl-group
view software/mpdl-services/mpiwg-mpdl-lt-web/src/de/mpg/mpiwg/berlin/mpdl/servlets/lt/GetForms.java @ 19:4a3641ae14d2
Erstellung
author | Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> |
---|---|
date | Wed, 09 Nov 2011 15:32:05 +0100 |
parents | |
children | 4ea0f81a5d08 |
line wrap: on
line source
package de.mpg.mpiwg.berlin.mpdl.servlets.lt; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.Collections; import java.util.Date; import java.util.Hashtable; import javax.servlet.ServletConfig; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException; import de.mpg.mpiwg.berlin.mpdl.lt.dict.db.LexHandler; import de.mpg.mpiwg.berlin.mpdl.lt.morph.app.Form; import de.mpg.mpiwg.berlin.mpdl.lt.morph.app.Lemma; public class GetForms extends HttpServlet { private static final long serialVersionUID = 1L; private LexHandler lexHandler; public GetForms() { super(); } public void init(ServletConfig config) throws ServletException { super.init(config); try { lexHandler = LexHandler.getInstance(); } catch (ApplicationException e) { throw new ServletException(e); } } protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { Date begin = new Date(); request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); String query = request.getParameter("query"); String language = request.getParameter("language"); String outputFormat = request.getParameter("outputFormat"); String outputType = request.getParameter("outputType"); String normalization = request.getParameter("normalization"); if (language == null) language = "eng"; if (outputFormat == null || ! (outputFormat.equals("xml") || outputFormat.equals("html") || outputFormat.equals("string"))) outputFormat = "xml"; if (outputType == null || ! (outputType.equals("compact") || outputType.equals("full"))) outputType = "compact"; if (normalization == null || ! (normalization.equals("none") || normalization.equals("reg") || normalization.equals("reg norm"))) normalization = "norm"; String xmlQueryString = "<query><name>" + query + "</name>" + "<language>" + language + "</language>" + "<outputFormat>" + outputFormat + "</outputFormat>" + "<outputType>" + outputType + "</outputType>" + "<normalization>" + normalization + "</normalization>" + "</query>"; try { if (outputFormat.equals("xml")) response.setContentType("text/xml"); else if (outputFormat.equals("html") || outputFormat.equals("string")) response.setContentType("text/html"); else response.setContentType("text/xml"); PrintWriter out = response.getWriter(); if (query == null || query.isEmpty()) { out.print("request parameter query is empty. Please specify a query."); out.close(); return; } ArrayList<Lemma> lemmas = lexHandler.getLemmas(query, "lemma", language, normalization); Hashtable<String, Form> formsHashtable = new Hashtable<String, Form>(); ArrayList<Form> forms = new ArrayList<Form>(); if (lemmas != null && ! lemmas.isEmpty()) { for (int i=0; i<lemmas.size(); i++) { Lemma lemma = lemmas.get(i); ArrayList<Form> lemmaForms = lemma.getFormsList(); for (int j=0; j < lemmaForms.size(); j++) { Form form = lemmaForms.get(j); formsHashtable.put(form.getFormName(), form); } } } forms.addAll(formsHashtable.values()); Collections.sort(forms); String baseUrl = getBaseUrl(request); Date end = new Date(); String elapsedTime = String.valueOf(end.getTime() - begin.getTime()); String result = ""; if (outputFormat == null || outputFormat.equals("xml")) result = createXmlOutputString(query, forms, outputType, baseUrl, xmlQueryString, elapsedTime); else if (outputFormat.equals("html")) result = createHtmlOutputString(query, forms, outputType, elapsedTime); else if (outputFormat.equals("string")) result = createStringOutputString(forms); else result = createXmlOutputString(query, forms, outputType, baseUrl, xmlQueryString, elapsedTime); out.print(result); out.close(); } catch (ApplicationException e) { throw new ServletException(e); } } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { } private String getBaseUrl( HttpServletRequest request ) { if (request.getServerPort() == 80 || request.getServerPort() == 443) return request.getScheme() + "://" + request.getServerName() + request.getContextPath(); else return request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + request.getContextPath(); } private String createXmlOutputString(String query, ArrayList<Form> forms, String outputType, String baseUrl, String xmlQueryString, String elapsedTime) { String result = "<result>"; result = result + "<provider>" + "MPIWG MPDL language technology service (see: " + "" + baseUrl + "), Max Planck Institute for the History of Science, Berlin." + "</provider>"; result = result + xmlQueryString; result = result + "<elapsed-time-ms>" + elapsedTime + "</elapsed-time-ms>"; if (forms != null && ! forms.isEmpty()) { result = result + "<morphology>"; result = result + "<forms>"; for (int i=0; i<forms.size(); i++) { result = result + "<form>"; Form f = forms.get(i); String formName = f.getFormName(); String language = f.getLanguage(); String formProvider = f.getProvider(); String lemmaName = f.getLemmaName(); result = result + "<provider>" + formProvider + "</provider>"; result = result + "<language>" + language + "</language>"; result = result + "<lemmaName>" + lemmaName + "</lemmaName>"; result = result + "<formName>" + formName + "</formName>"; result = result + "</form>"; } result = result + "</forms>"; result = result + "</morphology>"; } result = result + "</result>"; return result; } private String createHtmlOutputString(String query, ArrayList<Form> forms, String outputType, String elapsedTime) { String result = ""; result = result + "<html>"; result = result + "<head>"; result = result + "<title>Lemmas for: \"" + query + "\"</title>"; result = result + "</head>"; result = result + "<body>"; result = result + "<table align=\"right\" valign=\"top\">"; result = result + "<td>[<i>This is a MPIWG MPDL language technology service</i>] <a href=\"/mpiwg-mpdl-lt-web/index.html\"><img src=\"/mpiwg-mpdl-lt-web/images/info.png\" valign=\"bottom\" width=\"15\" height=\"15\" border=\"0\" alt=\"MPIWG MPDL language technology service\"/></a></td>"; result = result + "</table>"; result = result + "<p/>"; result = result + "<h1>Forms for: \"" + query + "\"</h1>"; if (forms != null && ! forms.isEmpty()) { result = result + "<h3>Morphology</h3>"; result = result + "<ul>"; result = result + "<p/>"; if (outputType != null && outputType.equals("full")) { for (int i=0; i<forms.size(); i++) { result = result + "<li>"; Form f = forms.get(i); String formName = f.getFormName(); String formProvider = f.getProvider(); String language = f.getLanguage(); String lemmaName = f.getLemmaName(); result = result + formName + " (data provider: " + formProvider + ", language: " + language + ", lemmaName: " + lemmaName + ")"; result = result + "</li>"; } } else if (outputType == null || outputType.equals("compact")) { result = result + "<li>"; for (int i=0; i<forms.size(); i++) { Form f = forms.get(i); String formName = f.getFormName(); result = result + formName + ", "; } result = result.substring(0, result.length() - 2); // without last comma and blank result = result + "</li>"; } else if (outputType.equals("string")) { for (int i=0; i<forms.size(); i++) { Form f = forms.get(i); String formName = f.getFormName(); result = result + formName + " "; } result = result.substring(0, result.length() - 1); // without last blank } } result = result + "<hr/>"; result = result + "<p/>"; result = result + "Elapsed time: " + elapsedTime + " ms, see the <a href=\"/mpiwg-mpdl-lt-web/index.html\">service description</a> of this page, if you find a bug <a href=\"https://it-dev.mpiwg-berlin.mpg.de/tracs/mpdl-project-software/newticket\">let us know</a>"; result = result + "</body>"; result = result + "</html>"; return result; } private String createStringOutputString(ArrayList<Form> forms) { String result = ""; for (int i=0; i<forms.size(); i++) { Form f = forms.get(i); String formName = f.getFormName(); result = result + formName + " "; } result = result.substring(0, result.length() - 1); // without last blank return result; } }