Mercurial > hg > mpdl-group
comparison software/mpdl-services/mpiwg-mpdl-cms-web/src/de/mpg/mpiwg/berlin/mpdl/servlets/cms/QueryDocuments.java @ 23:e845310098ba
diverse Korrekturen
author | Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> |
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date | Tue, 27 Nov 2012 12:35:19 +0100 |
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22:6a45a982c333 | 23:e845310098ba |
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1 package de.mpg.mpiwg.berlin.mpdl.servlets.cms; | |
2 | |
3 import java.io.File; | |
4 import java.io.IOException; | |
5 import java.io.PrintWriter; | |
6 import java.util.ArrayList; | |
7 import java.util.Date; | |
8 | |
9 import javax.servlet.ServletConfig; | |
10 import javax.servlet.ServletException; | |
11 import javax.servlet.http.HttpServlet; | |
12 import javax.servlet.http.HttpServletRequest; | |
13 import javax.servlet.http.HttpServletResponse; | |
14 | |
15 import org.apache.lucene.document.Fieldable; | |
16 import org.apache.lucene.search.Query; | |
17 | |
18 import de.mpg.mpiwg.berlin.mpdl.cms.document.Document; | |
19 import de.mpg.mpiwg.berlin.mpdl.cms.document.DocumentHandler; | |
20 import de.mpg.mpiwg.berlin.mpdl.cms.document.Hits; | |
21 import de.mpg.mpiwg.berlin.mpdl.cms.lucene.IndexHandler; | |
22 | |
23 public class QueryDocuments extends HttpServlet { | |
24 private static final long serialVersionUID = 1L; | |
25 public QueryDocuments() { | |
26 super(); | |
27 } | |
28 | |
29 public void init(ServletConfig config) throws ServletException { | |
30 super.init(config); | |
31 } | |
32 | |
33 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { | |
34 request.setCharacterEncoding("utf-8"); | |
35 response.setCharacterEncoding("utf-8"); | |
36 String query = request.getParameter("query"); | |
37 String sortBy = request.getParameter("sortBy"); | |
38 String[] sortFields = null; | |
39 if (sortBy != null && ! sortBy.trim().isEmpty()) | |
40 sortFields = sortBy.split(" "); | |
41 String language = request.getParameter("language"); // optional: is also detected by translator service | |
42 if (language != null && language.equals("none")) | |
43 language = null; | |
44 String translate = request.getParameter("translate"); | |
45 String pageStr = request.getParameter("page"); | |
46 if (pageStr == null) | |
47 pageStr = "1"; | |
48 int page = Integer.parseInt(pageStr); | |
49 String pageSizeStr = request.getParameter("pageSize"); | |
50 if (pageSizeStr == null) | |
51 pageSizeStr = "10"; | |
52 int pageSize = Integer.parseInt(pageSizeStr); | |
53 int from = (page * pageSize) - pageSize; // e.g. 0 | |
54 int to = page * pageSize - 1; // e.g. 9 | |
55 String outputFormat = request.getParameter("outputFormat"); | |
56 if (outputFormat == null) | |
57 outputFormat = "html"; | |
58 if (outputFormat.equals("xml")) | |
59 response.setContentType("text/xml"); | |
60 else if (outputFormat.equals("html")) | |
61 response.setContentType("text/html"); | |
62 else | |
63 response.setContentType("text/xml"); | |
64 PrintWriter out = response.getWriter(); | |
65 if (query == null) { | |
66 out.print("no query specified: please set parameter \"query\""); | |
67 out.close(); | |
68 return; | |
69 } | |
70 try { | |
71 Date begin = new Date(); | |
72 IndexHandler indexHandler = IndexHandler.getInstance(); | |
73 boolean translateBool = false; | |
74 if (translate != null && translate.equals("true")) | |
75 translateBool = true; | |
76 boolean withHitHighlights = false; | |
77 if (query.contains("tokenOrig:") || query.contains("tokenMorph:") || query.contains("tokenReg:") || query.contains("tokenNorm:")) | |
78 withHitHighlights = true; | |
79 Hits hits = indexHandler.queryDocuments(query, sortFields, language, from, to, withHitHighlights, translateBool); | |
80 ArrayList<Document> docs = null; | |
81 if (hits != null) | |
82 docs = hits.getHits(); | |
83 int hitsSize = -1; | |
84 int docsSize = -1; | |
85 if (hits != null) | |
86 hitsSize = hits.getSize(); | |
87 if (docs != null) | |
88 docsSize = docs.size(); | |
89 Date end = new Date(); | |
90 long elapsedTime = end.getTime() - begin.getTime(); | |
91 if (outputFormat.equals("xml")) { | |
92 out.print("<result>"); | |
93 out.print("<query>"); | |
94 out.print("<queryText>" + query + "</queryText>"); | |
95 out.print("<resultPage>" + page + "</resultPage>"); | |
96 out.print("<resultPageSize>" + pageSize + "</resultPageSize>"); | |
97 out.print("</query>"); | |
98 out.print("<hitsSize>" + hitsSize + "</hitsSize>"); | |
99 out.print("<hits>"); | |
100 for (int i=0; i<docsSize; i++) { | |
101 Document doc = docs.get(i); | |
102 out.print("<doc>"); | |
103 String docId = doc.getFieldable("docId").stringValue(); | |
104 out.print("<docId>" + docId + "</docId>"); | |
105 Fieldable docCollectionNamesField = doc.getFieldable("collectionNames"); | |
106 if (docCollectionNamesField != null) { | |
107 String docCollectionNames = docCollectionNamesField.stringValue(); | |
108 out.print("<collectionName>" + docCollectionNames + "</collectionName>"); | |
109 } | |
110 ArrayList<String> hitFragments = doc.getHitFragments(); | |
111 if (hitFragments != null) { | |
112 out.print("<hitFragments>"); | |
113 for (int j=0; j<hitFragments.size(); j++) { | |
114 String hitFragment = hitFragments.get(j); | |
115 out.print("<hitFragment>" + hitFragment + "</hitFragment>"); | |
116 } | |
117 out.print("</hitFragments>"); | |
118 } | |
119 out.print("</doc>"); | |
120 } | |
121 out.print("</hits>"); | |
122 out.print("<executionTime>" + elapsedTime + "</executionTime>"); | |
123 out.print("</result>"); | |
124 } else if (outputFormat.equals("html")) { | |
125 StringBuilder htmlStrBuilder = new StringBuilder(); | |
126 String baseUrl = getBaseUrl(request); | |
127 String cssUrl = baseUrl + "/css/page.css"; | |
128 htmlStrBuilder.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?><!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\"\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">"); | |
129 htmlStrBuilder.append("<html>"); | |
130 htmlStrBuilder.append("<head>"); | |
131 htmlStrBuilder.append("<title>Query: " + query + "</title>"); | |
132 htmlStrBuilder.append("<link rel=\"stylesheet\" type=\"text/css\" href=\"" + cssUrl + "\"/>"); | |
133 htmlStrBuilder.append("</head>"); | |
134 htmlStrBuilder.append("<body>"); | |
135 htmlStrBuilder.append("<table align=\"right\" valign=\"top\">"); | |
136 htmlStrBuilder.append("<td>[<i>This is a MPIWG CMS technology service</i>] <a href=\"/mpiwg-mpdl-cms-web/index.html\"><img src=\"/mpiwg-mpdl-cms-web/images/info.png\" valign=\"bottom\" width=\"15\" height=\"15\" border=\"0\" alt=\"MPIWG CMS service\"/></a></td>"); | |
137 htmlStrBuilder.append("</table>"); | |
138 htmlStrBuilder.append("<p/>"); | |
139 String luceneQueryStr = query; | |
140 Query luceneQuery = hits.getQuery(); | |
141 if (query != null) | |
142 luceneQueryStr = luceneQuery.toString(); | |
143 String sortByStr = sortBy; | |
144 if (sortBy == null) | |
145 sortByStr = ""; | |
146 htmlStrBuilder.append("<h4>Query: " + luceneQueryStr + ", sorted by: " + sortByStr + "</h4>"); | |
147 htmlStrBuilder.append("<form action=\"QueryDocuments\" method=\"get\">"); | |
148 htmlStrBuilder.append("<input type=\"hidden\" name=\"query\" value=\"" + query + "\"/>"); | |
149 if (translate != null) | |
150 htmlStrBuilder.append("<input type=\"hidden\" name=\"translate\" value=\"" + translate + "\"/>"); | |
151 if (language != null) | |
152 htmlStrBuilder.append("<input type=\"hidden\" name=\"language\" value=\"" + language + "\"/>"); | |
153 htmlStrBuilder.append("<input type=\"hidden\" name=\"page\" id=\"pageId\" value=\"" + page + "\"/>"); | |
154 htmlStrBuilder.append("<input type=\"hidden\" name=\"sortBy\" id=\"sortById\" value=\"" + sortByStr + "\"/>"); | |
155 htmlStrBuilder.append("<input type=\"submit\" id=\"submitId\" style=\"position: absolute; left: -9999px\"/>"); | |
156 htmlStrBuilder.append("<table>"); | |
157 htmlStrBuilder.append("<colgroup>"); | |
158 htmlStrBuilder.append("<col width=\"3%\"/>"); | |
159 htmlStrBuilder.append("<col width=\"7%\"/>"); | |
160 htmlStrBuilder.append("<col width=\"3%\"/>"); | |
161 htmlStrBuilder.append("<col width=\"12%\"/>"); | |
162 htmlStrBuilder.append("<col width=\"70%\"/>"); | |
163 htmlStrBuilder.append("</colgroup>"); | |
164 htmlStrBuilder.append("<tr>"); | |
165 int countPages = hitsSize / 10 + 1; | |
166 if (hitsSize % 10 == 0) // modulo operator: e.g. 280 % 10 is 0 | |
167 countPages = hitsSize / 10; | |
168 int pageLeft = page - 1; | |
169 if (page == 1) | |
170 pageLeft = 1; | |
171 int pageRight = page + 1; | |
172 if (page == countPages) | |
173 pageRight = countPages; | |
174 htmlStrBuilder.append("<td align=\"left\" valign=\"top\"><button onclick=\"document.getElementById('pageId').value=" + pageLeft + "\" style=\"background:none;border:none;\"><img src=\"../images/left.gif\"/></button></td>"); | |
175 htmlStrBuilder.append("<td align=\"middle\" valign=\"top\" nowrap=\"true\">" + page + " / " + countPages + "</td>"); | |
176 htmlStrBuilder.append("<td align=\"left\" valign=\"top\"><button onclick=\"document.getElementById('pageId').value=" + pageRight + "\" style=\"background:none;border:none;\"><img src=\"../images/right.gif\"/></button></td>"); | |
177 htmlStrBuilder.append("<td align=\"left\" valign=\"top\" nowrap=\"true\">Page: <input type=\"text\" size=\"3\" value=\"" + page + "\" id=\"pageTextId\" onkeydown=\"if (event.keyCode == 13) {document.getElementById('pageId').value=document.getElementById('pageTextId').value; document.getElementById('submitId').click();}\"/></td>"); | |
178 int fromDisplay = from + 1; | |
179 int toDisplay = to + 1; | |
180 if (hitsSize < to) | |
181 toDisplay = hitsSize; | |
182 htmlStrBuilder.append("<td align=\"right\" valign=\"top\">" + fromDisplay + " - " + toDisplay + " of " + hitsSize + " documents" + "</td>"); | |
183 htmlStrBuilder.append("</tr>"); | |
184 htmlStrBuilder.append("</table>"); | |
185 htmlStrBuilder.append("<p/>"); | |
186 htmlStrBuilder.append("<table width=\"100%\" align=\"right\" border=\"2\" rules=\"groups\">"); | |
187 htmlStrBuilder.append("<colgroup>"); | |
188 htmlStrBuilder.append("<col width=\"3%\"/>"); | |
189 htmlStrBuilder.append("<col width=\"15%\"/>"); | |
190 htmlStrBuilder.append("<col width=\"45%\"/>"); | |
191 htmlStrBuilder.append("<col width=\"10%\"/>"); | |
192 htmlStrBuilder.append("<col width=\"5%\"/>"); | |
193 htmlStrBuilder.append("<col width=\"10%\"/>"); | |
194 htmlStrBuilder.append("<col width=\"6%\"/>"); | |
195 htmlStrBuilder.append("<col width=\"5%\"/>"); | |
196 htmlStrBuilder.append("<col width=\"4%\"/>"); | |
197 htmlStrBuilder.append("</colgroup>"); | |
198 htmlStrBuilder.append("<thead>"); | |
199 htmlStrBuilder.append("<tr>"); | |
200 htmlStrBuilder.append("<td align=\"left\" valign=\"top\" style=\"font-weight:bold;\">" + "No" + "</td>"); | |
201 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + "<button onclick=\"document.getElementById('sortById').value='author'\" style=\"padding:0px;font-weight:bold;font-size:14px;background:none;border:none;\">" + "Author" + "</button></td>"); | |
202 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + "<button onclick=\"document.getElementById('sortById').value='title'\" style=\"padding:0px;font-weight:bold;font-size:14px;background:none;border:none;\">" + "Title" + "</button></td>"); | |
203 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + "<button onclick=\"document.getElementById('sortById').value='publisher'\" style=\"padding:0px;font-weight:bold;font-size:14px;background:none;border:none;\">" + "Place" + "</button></td>"); | |
204 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + "<button onclick=\"document.getElementById('sortById').value='date'\" style=\"padding:0px;font-weight:bold;font-size:14px;background:none;border:none;\">" + "Year" + "</button></td>"); | |
205 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + "<button onclick=\"document.getElementById('sortById').value='docId'\" style=\"padding:0px;font-weight:bold;font-size:14px;background:none;border:none;\">" + "Id" + "</button></td>"); | |
206 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + "<button onclick=\"document.getElementById('sortById').value='lastModified'\" style=\"padding:0px;font-weight:bold;font-size:14px;background:none;border:none;\">" + "Last modified" + "</button></td>"); | |
207 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + "<button onclick=\"document.getElementById('sortById').value='language'\" style=\"padding:0px;font-weight:bold;font-size:14px;background:none;border:none;\">" + "Language" + "</button></td>"); | |
208 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + "<button onclick=\"document.getElementById('sortById').value='schemaName'\" style=\"padding:0px;font-weight:bold;font-size:14px;background:none;border:none;\">" + "Schema" + "</button></td>"); | |
209 htmlStrBuilder.append("</tr>"); | |
210 htmlStrBuilder.append("</thead>"); | |
211 htmlStrBuilder.append("<tbody>"); | |
212 for (int i=0; i<docsSize; i++) { | |
213 Document doc = docs.get(i); | |
214 htmlStrBuilder.append("<tr valign=\"top\">"); | |
215 int num = (page - 1) * pageSize + i + 1; | |
216 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + num + ". " + "</td>"); | |
217 Fieldable authorField = doc.getFieldable("author"); | |
218 String author = ""; | |
219 if (authorField != null) | |
220 author = authorField.stringValue(); | |
221 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + author + "</td>"); | |
222 Fieldable titleField = doc.getFieldable("title"); | |
223 String title = ""; | |
224 if (titleField != null) | |
225 title = titleField.stringValue(); | |
226 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + title + "</td>"); | |
227 Fieldable publisherField = doc.getFieldable("publisher"); | |
228 String publisher = ""; | |
229 if (publisherField != null) | |
230 publisher = publisherField.stringValue(); | |
231 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + publisher + "</td>"); | |
232 Fieldable yearField = doc.getFieldable("date"); | |
233 String year = ""; | |
234 if (yearField != null) | |
235 year = yearField.stringValue(); | |
236 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + year + "</td>"); | |
237 String docId = doc.getFieldable("docId").stringValue(); | |
238 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + docId + "</td>"); | |
239 Fieldable lastModifiedField = doc.getFieldable("lastModified"); | |
240 String lastModified = ""; | |
241 if (lastModifiedField != null) | |
242 lastModified = lastModifiedField.stringValue(); | |
243 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + lastModified + "</td>"); | |
244 Fieldable languageField = doc.getFieldable("language"); | |
245 String lang = ""; | |
246 if (languageField != null) | |
247 lang = languageField.stringValue(); | |
248 htmlStrBuilder.append("<td align=\"left\" valign=\"top\" style=\"padding-left:5px\">" + lang + "</td>"); | |
249 Fieldable schemaNameField = doc.getFieldable("schemaName"); | |
250 String schemaName = ""; | |
251 if (schemaNameField != null) | |
252 schemaName = schemaNameField.stringValue(); | |
253 htmlStrBuilder.append("<td align=\"left\" valign=\"top\">" + schemaName + "</td>"); | |
254 htmlStrBuilder.append("</tr>"); | |
255 // Link row | |
256 htmlStrBuilder.append("<tr valign=\"top\">"); | |
257 htmlStrBuilder.append("<td align=\"left\" valign=\"top\"></td>"); | |
258 htmlStrBuilder.append("<td align=\"left\" valign=\"top\" colspan=\"8\">"); | |
259 Fieldable echoIdField = doc.getFieldable("echoId"); | |
260 String echoId = null; | |
261 if (echoIdField != null) | |
262 echoId = echoIdField.stringValue(); | |
263 String urlDocuView = "http://echo.mpiwg-berlin.mpg.de/ECHOdocuView?url=" + echoId; | |
264 if (echoId == null) | |
265 urlDocuView = "http://echo.mpiwg-berlin.mpg.de/"; | |
266 htmlStrBuilder.append("<img src=\"/mpiwg-mpdl-cms-web/images/book.png\" width=\"15\" height=\"15\" border=\"0\"/>" + " <a href=\"" + urlDocuView + "\">Full view</a>"); | |
267 htmlStrBuilder.append(", " + "<a href=\"/mpiwg-mpdl-cms-web/query/GetPage?docId=" + docId + "\">Lite view</a>"); | |
268 htmlStrBuilder.append("</td>"); | |
269 htmlStrBuilder.append("</tr>"); | |
270 htmlStrBuilder.append("<tr valign=\"top\">"); | |
271 htmlStrBuilder.append("<td align=\"left\" valign=\"top\"></td>"); | |
272 htmlStrBuilder.append("<td align=\"left\" valign=\"top\" colspan=\"8\">"); | |
273 htmlStrBuilder.append("<img src=\"/mpiwg-mpdl-cms-web/images/download.png\" width=\"15\" height=\"15\" border=\"0\"/>" + " Download: <a href=\"/mpiwg-mpdl-cms-web/doc/GetDocument?id=" + docId + "\">XML</a>"); | |
274 DocumentHandler docHandler = new DocumentHandler(); | |
275 String destFileNamePdf = docHandler.getFullFileName(docId, "pdf"); | |
276 String destFileNameHtml = docHandler.getFullFileName(docId, "html"); | |
277 int lastDot = docId.lastIndexOf("."); | |
278 String docIdWithoutExtension = docId.substring(0, lastDot); | |
279 File destFilePdf = new File(destFileNamePdf); | |
280 File destFileHtml = new File(destFileNameHtml); | |
281 if (destFilePdf.exists()) | |
282 htmlStrBuilder.append(", " + "<a href=\"/mpiwg-mpdl-cms-web/doc/GetDocument?id=" + docIdWithoutExtension + ".pdf" + "\">PDF</a>"); | |
283 if (destFileHtml.exists()) | |
284 htmlStrBuilder.append(", " + "<a href=\"/mpiwg-mpdl-cms-web/doc/GetDocument?id=" + docIdWithoutExtension + ".html" + "\">HTML</a>"); | |
285 htmlStrBuilder.append("</td>"); | |
286 htmlStrBuilder.append("</tr>"); | |
287 // hit fragments row | |
288 ArrayList<String> hitFragments = doc.getHitFragments(); | |
289 if (hitFragments != null) { | |
290 StringBuilder hitFragmentsStrBuilder = new StringBuilder(); | |
291 hitFragmentsStrBuilder.append("<b>Hit summary: </b>"); | |
292 hitFragmentsStrBuilder.append("(...) "); | |
293 for (int j=0; j<hitFragments.size(); j++) { | |
294 String hitFragment = hitFragments.get(j); | |
295 hitFragmentsStrBuilder.append(hitFragment + " (...) "); | |
296 } | |
297 htmlStrBuilder.append("<tr valign=\"top\">"); | |
298 htmlStrBuilder.append("<td align=\"left\" valign=\"top\"></td>"); | |
299 htmlStrBuilder.append("<td align=\"left\" valign=\"top\" colspan=\"8\">" + hitFragmentsStrBuilder.toString() + "</td>"); | |
300 htmlStrBuilder.append("</tr>"); | |
301 } | |
302 } | |
303 htmlStrBuilder.append("</tbody>"); | |
304 htmlStrBuilder.append("</table>"); | |
305 htmlStrBuilder.append("</form>"); | |
306 htmlStrBuilder.append("<p/>"); | |
307 htmlStrBuilder.append("Elapsed time: " + elapsedTime + " ms"); | |
308 htmlStrBuilder.append("</body>"); | |
309 htmlStrBuilder.append("</html>"); | |
310 out.print(htmlStrBuilder.toString()); | |
311 } | |
312 out.close(); | |
313 } catch (Exception e) { | |
314 throw new ServletException(e); | |
315 } | |
316 } | |
317 | |
318 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { | |
319 doGet(request, response); | |
320 } | |
321 | |
322 private String getBaseUrl(HttpServletRequest request) { | |
323 return getServerUrl(request) + request.getContextPath(); | |
324 } | |
325 | |
326 private String getServerUrl(HttpServletRequest request) { | |
327 if ( ( request.getServerPort() == 80 ) || ( request.getServerPort() == 443 ) ) | |
328 return request.getScheme() + "://" + request.getServerName(); | |
329 else | |
330 return request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort(); | |
331 } | |
332 | |
333 } |