/**
* @throws IOException
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) used to
* confirm the modifications and/or release the semaphore called by the confirm modification
* or if the user loads an other page, refreshes the page or switches language
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
if (request.getParameter("content") == null) { // the user load an other page
for (SemaphoreLn sem :
listMutex) { // Get the correct semaphore and check if it was not already released
if (sem.getLanguage().equals(request.getParameter("language"))
&& sem.getType().equals("Syn")
&& sem.availablePermits() < 1) {
sem.release(); // Release the semaphore
}
}
} else { // The user clicked on confirm modification
File file;
String filePath =
env
+ "/solr/solr_home/"
+ server
+ "/conf/synonyms_"
+ request.getParameter("language")
+ ".txt";
file = new File(filePath);
try {
FileOutputStream fooStream =
new FileOutputStream(file, false); // true to append false to overwrite.
byte[] myBytes =
request
.getParameter("content")
.replaceAll(">", ">")
.replaceAll("<div>|<br>|<br >", "\n")
.replaceAll("</div>|</lines>| ", "")
.getBytes();
fooStream.write(myBytes); // rewrite the file
fooStream.close();
} catch (IOException e) {
LOGGER.error(
"Error while rewriting the file synonyms_"
+ request.getParameter("language")
+ " Synonyms Servlet's doPost. Error 69019",
e);
PrintWriter out = response.getWriter();
out.append(
"Error while rewriting the synonyms file, please make sure the file exists and retry, if the problem persists contact your system administrator. Error code : 69015");
out.close();
return;
}
for (SemaphoreLn sem :
listMutex) { // Get the correct semaphore and check if it was not already released
if (sem.getLanguage().equals(request.getParameter("language"))
&& sem.getType().equals("Syn")
&& sem.availablePermits() < 1) {
sem.release(); // Release the semaphore
}
}
}
} catch (Exception e) {
PrintWriter out = response.getWriter();
out.append(
"Something bad happened, please retry, if the problem persists contact your system administrator. Error code : 69507");
out.close();
LOGGER.error("Unindentified error in Synonyms doPost. Error 69507", e);
}
}
/**
* @throws IOException
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) used to print
* the content of the file or to download it If called to print it will return plain text
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
if (content.equals("")) {
PrintWriter out = response.getWriter();
out.append(
"Error while opening the list of languages, please make sure the file exists and retry, if the problem persists contact your system administrator. Error code : 69016");
out.close();
return;
} else if (request.getParameter("language") != null) { // Print the content of the file
for (SemaphoreLn sem : listMutex) { // For all the semaphores
if (sem.getLanguage().equals(request.getParameter("language"))
&& sem.getType()
.equals(
"Syn")) { // if it has the good language and type(stopwords or Synonyms for
// now)
try {
if (sem.availablePermits() != 0) { // If it is available
try {
sem.acquire(); // Acquire it
} catch (InterruptedException e) {
LOGGER.error(
"Error while acquiring semaphore in Synonyms Servlet's doGet. Error 69017",
e);
PrintWriter out = response.getWriter();
out.append(
"Something bad happened, please retry, if the problem persists contact your system administrator. Error code : 69017");
out.close();
return;
}
String filename =
"synonyms_" + request.getParameter("language").toString() + ".txt";
response.setContentType("application/octet-stream");
String filepath = env + "/solr/solr_home/" + server + "/conf/";
String synContent = readFile(filepath + filename, StandardCharsets.UTF_8);
// get the file and put its content into a string
response.setContentType("text/html");
PrintWriter out = response.getWriter();
out.append(synContent); // returns the content of the file
out.close();
return;
} else { // if not available
PrintWriter out = response.getWriter();
out.append("File already in use");
out.close();
return;
}
} catch (IOException e) {
LOGGER.error(
"Error while reading the synonyms_"
+ request.getParameter("language")
+ ".txt file in Synonyms servlet, please make sure the file exists and is located in "
+ env
+ "/solr/solr_home/"
+ server
+ "/conf/"
+ ". Error 69018",
e);
PrintWriter out = response.getWriter();
out.append(
"Error while reading the synonyms file, please make sure the file exists and retry, if the problem persists contact your system administrator. Error code : 69018");
out.close();
return;
}
}
}
}
} catch (Exception e) {
PrintWriter out = response.getWriter();
out.append(
"Something bad happened, please retry, if the problem persists contact your system administrator. Error code : 69506");
out.close();
LOGGER.error("Unindentified error in Synonyms doGet. Error 69506", e);
}
}