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gf-server: New URL format: /grammar.pgf/command

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This commit is contained in:
bjorn
2008-10-20 08:45:00 +00:00
parent 95fca30b5d
commit 547f362f83
3 changed files with 33 additions and 23 deletions
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47
src/server/MainFastCGI.hs
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@@ -15,33 +15,32 @@ import Control.Monad
import Data.Char
import qualified Data.Map as Map
import Data.Maybe
import System.Environment
defaultGrammarFile :: IO FilePath
defaultGrammarFile =
do env <- getEnvironment
return $ fromMaybe "grammar.pgf" $ lookup "PGF_FILE" env
main :: IO ()
main = do initFastCGI
cache <- newCache PGF.readPGF
runFastCGIConcurrent' forkIO 100 (handleErrors (handleCGIErrors (fcgiMain cache)))
runFastCGIConcurrent' forkIO 100 (handleErrors (handleCGIErrors (cgiMain cache)))
fcgiMain :: Cache PGF -> CGI CGIResult
fcgiMain cache = liftIO (defaultGrammarFile >>= readCache cache) >>= cgiMain
cgiMain :: PGF -> CGI CGIResult
cgiMain pgf =
cgiMain :: Cache PGF -> CGI CGIResult
cgiMain cache =
do path <- pathInfo
json <- case path of
"/parse" -> return (doParse pgf) `ap` getText `ap` getCat `ap` getFrom
"/complete" -> return (doComplete pgf) `ap` getText `ap` getCat `ap` getFrom `ap` getLimit
"/linearize" -> return (doLinearize pgf) `ap` getTree `ap` getTo
"/translate" -> return (doTranslate pgf) `ap` getText `ap` getCat `ap` getFrom `ap` getTo
"/grammar" -> return (doGrammar pgf) `ap` requestAcceptLanguage
_ -> throwCGIError 404 "Not Found" ["Resource not found: " ++ path]
outputJSONP json
case filter (not . null) $ splitBy (=='/') path of
[file,command] -> do pgf <- liftIO $ readCache cache file
json <- pgfMain pgf command
outputJSONP json
_ -> throwCGIError 400 "Unknown resource" ["Unknown resource: " ++ show path,
"Use /grammar.pgf/command"]
pgfMain :: PGF -> String -> CGI JSValue
pgfMain pgf command =
case command of
"parse" -> return (doParse pgf) `ap` getText `ap` getCat `ap` getFrom
"complete" -> return (doComplete pgf) `ap` getText `ap` getCat `ap` getFrom `ap` getLimit
"linearize" -> return (doLinearize pgf) `ap` getTree `ap` getTo
"translate" -> return (doTranslate pgf) `ap` getText `ap` getCat `ap` getFrom `ap` getTo
"grammar" -> return (doGrammar pgf) `ap` requestAcceptLanguage
_ -> throwCGIError 400 "Unknown command" ["Unknown command: " ++ show command]
where
getText :: CGI String
getText = liftM (maybe "" (urlDecodeUnicode . UTF8.decodeString)) $ getInput "input"
@@ -162,3 +161,11 @@ outputJSONP x =
outputStrict :: String -> CGI CGIResult
outputStrict x | x == x = output x
| otherwise = fail "I am the pope."
-- * General utilities
splitBy :: (a -> Bool) -> [a] -> [[a]]
splitBy _ [] = [[]]
splitBy f list = case break f list of
(first,[]) -> [first]
(first,_:rest) -> first : splitBy f rest

6
src/server/gwt-client/src/se/chalmers/cs/gf/gwt_translate/client/GF.java
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@@ -18,9 +18,11 @@ import java.util.ArrayList;
public class GF {
private String baseURL;
private String pgfName;
public GF (String baseURL) {
public GF (String baseURL, String pgfName) {
this.baseURL = baseURL;
this.pgfName = pgfName;
}
public static interface GFCallback<T extends JavaScriptObject> {
@@ -155,7 +157,7 @@ public class GF {
/* Utilities */
private <T extends JavaScriptObject> GFRequest sendRequest (String resource, List<Arg> vars, final GFCallback<T> callback) {
String url = baseURL + "/" + resource + "?" + buildQueryString(vars);
String url = baseURL + "/" + pgfName + "/" + resource + "?" + buildQueryString(vars);
RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, url);
builder.setTimeoutMillis(30000);
builder.setHeader("Accept","text/plain, text/html;q=0.5, */*;q=0.1");

3
src/server/gwt-client/src/se/chalmers/cs/gf/gwt_translate/client/Translate.java
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@@ -31,6 +31,7 @@ import java.util.Set;
public class Translate implements EntryPoint {
private static final String gfBaseURL = "/pgf";
private static final String pgfName = "grammar.pgf";
private GF gf;
@@ -195,7 +196,7 @@ public class Translate implements EntryPoint {
statusPopup.add(statusLabel);
statusPopup.center();
gf = new GF(gfBaseURL);
gf = new GF(gfBaseURL, pgfName);
createTranslationUI();