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Diffstat (limited to 'src/uk/org/ury/library/LibraryRequestHandler.java')
| -rw-r--r-- | src/uk/org/ury/library/LibraryRequestHandler.java | 188 |
1 files changed, 0 insertions, 188 deletions
diff --git a/src/uk/org/ury/library/LibraryRequestHandler.java b/src/uk/org/ury/library/LibraryRequestHandler.java deleted file mode 100644 index a81851d..0000000 --- a/src/uk/org/ury/library/LibraryRequestHandler.java +++ /dev/null @@ -1,188 +0,0 @@ -/** - * - */ -package uk.org.ury.library; - -import java.io.UnsupportedEncodingException; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.List; -import java.util.Locale; -import java.util.Map; - -import org.apache.http.HttpRequest; -import org.apache.http.HttpResponse; -import org.apache.http.HttpStatus; -import org.apache.http.entity.StringEntity; -import org.apache.http.protocol.HTTP; -import org.apache.http.protocol.HttpContext; -import org.json.simple.JSONValue; - -import uk.org.ury.database.DatabaseDriver; -import uk.org.ury.database.UserClass; -import uk.org.ury.database.exceptions.ConnectionFailureException; -import uk.org.ury.database.exceptions.MissingCredentialsException; -import uk.org.ury.database.exceptions.QueryFailureException; -import uk.org.ury.library.exceptions.EmptySearchException; -import uk.org.ury.library.item.LibraryItem; -import uk.org.ury.protocol.Directive; -import uk.org.ury.protocol.Status; -import uk.org.ury.server.AbstractRequestHandler; -import uk.org.ury.server.Server; -import uk.org.ury.server.exceptions.BadRequestException; -import uk.org.ury.server.exceptions.HandleFailureException; -import uk.org.ury.server.exceptions.HandlerNotFoundException; -import uk.org.ury.server.exceptions.HandlerSetupFailureException; -import uk.org.ury.server.exceptions.NotAHandlerException; -import uk.org.ury.server.exceptions.UnknownFunctionException; - -/** - * A request handler for library queries. - * - * @author Matt Windsor - */ -public class LibraryRequestHandler extends AbstractRequestHandler { - /** - * Construct a new LibraryRequestHandler. - * - * @param server - * The instance of the URY server responsible for the request. - * - * @param mount - * The directory to which this handler is to be mounted. - */ - public LibraryRequestHandler(Server server, String mount) { - super(server, mount); - } - - /** - * Perform a library search, populating the response list. - * - * @param parameters - * A key-value map of parameters supplied with the server - * request. Typically, the function parameter will detail the - * function that the request handler is expected to perform. - * - * @param response - * The response list to populate. - * - * @param server - * The server providing database resources. - * - * @throws HandleFailureException - * if an error occurs that thwarts the handling of the request. - */ - - private void doSearch(Map<String, String> parameters, - Map<String, Object> response, Server server) - throws HandleFailureException { - if (parameters.containsKey("search") == false) - throw new HandleFailureException("Search term is missing."); - else if (parameters.get("search") == null) - throw new HandleFailureException("Search term is null."); - - String search = parameters.get("search"); - DatabaseDriver dd = null; - - try { - dd = server.getDatabaseConnection(UserClass.READ_ONLY); - } catch (MissingCredentialsException e) { - throw new HandleFailureException(e.getMessage()); - } catch (ConnectionFailureException e) { - throw new HandleFailureException(e.getMessage()); - } - - try { - List<Map<String, String>> itemArray = new ArrayList<Map<String, String>>(); - - for (LibraryItem li : LibraryUtils.search(dd, search)) { - itemArray.add(li.asResponse()); - } - - response.put(Directive.ITEMS.toString(), itemArray); - } catch (QueryFailureException e) { - throw new HandleFailureException(e.getMessage()); - } catch (EmptySearchException e) { - throw new HandleFailureException(e.getMessage()); - } - } - - /** - * Handle a HTTP GET request. - * - * @param request - * The HTTP request. - * - * @param response - * The response that the handler will populate during the - * handling of the request. - * - * @param context - * The HTTP context. - * - * @throws HandlerNotFoundException - * if the client requested a request handler that could not be - * found on the class path. - * - * @throws HandlerSetupFailureException - * if the handler was found but could not be set up (eg does not - * implement appropriate interface or cannot be instantiated). - * - * @throws HandleFailureException - * if an appropriate handler was contacted, but it failed to - * process the request. - * - * @throws BadRequestException - * if the request was malformed or invalid. - * - * @throws NotAHandlerException - * if the class requested to handle the request is not a - * handler. - * - * @throws UnknownFunctionException - * if the request is for a path that does not correspond to one - * of this handler's functions. - */ - @Override - public void handleGet(HttpRequest request, HttpResponse response, - HttpContext context) throws HandlerNotFoundException, - HandlerSetupFailureException, HandleFailureException, - BadRequestException, NotAHandlerException, UnknownFunctionException { - String path; - String uri = request.getRequestLine().getUri(); - String query = getQueryString(uri); - - if (query == null) - path = uri.toLowerCase(Locale.ENGLISH); - else - path = uri.split("\\?" + query)[0].toLowerCase(Locale.ENGLISH); - - Map<String, Object> content = new HashMap<String, Object>(); - - if (path.equals("/library/tracks")) { - try { - doSearch(parseQueryString(query), content, server); - } catch (UnsupportedEncodingException e) { - throw new HandleFailureException(e.getMessage()); - } - } else { - throw new UnknownFunctionException(path); - } - - response.setStatusLine(request.getProtocolVersion(), HttpStatus.SC_OK, - "OK"); - - content.put(Directive.STATUS.toString(), Status.OK.toString()); - - StringEntity entity = null; - - try { - entity = new StringEntity(JSONValue.toJSONString(content)); - } catch (UnsupportedEncodingException e) { - throw new HandlerSetupFailureException(getClass().getName(), e); - } - - entity.setContentType(HTTP.PLAIN_TEXT_TYPE); - response.setEntity(entity); - } -} |