Examples with IPromise org.nustaq.kontraktor.IPromise used on opensource projects

Example 16 with IPromise

use of org.nustaq.kontraktor.IPromise in project kontraktor by RuedigerMoeller.

the class RESTActor method getBooks.

// curl -i -X GET http://localhost:8080/api/books/234234
public IPromise getBooks(int id) {
    Promise res = promise();
    // simulate blocking operation (e.g. database query)
    execInThreadPool(() -> new Book().title("Title " + id).id("" + id).author("kontraktor")).then(res);
    return res;
}

Example 17 with IPromise

use of org.nustaq.kontraktor.IPromise in project kontraktor by RuedigerMoeller.

the class UndertowRESTHandler method parseAndDispatch.

private void parseAndDispatch(HttpServerExchange exchange, String[] split, String rawPath, Method m, byte[] postData) {
    try {
        Class<?>[] parameterTypes = m.getParameterTypes();
        Annotation[][] parameterAnnotations = m.getParameterAnnotations();
        Object[] args = new Object[parameterTypes.length];
        int splitIndex = 1;
        try {
            for (int i = 0; i < parameterTypes.length; i++) {
                Class<?> parameterType = parameterTypes[i];
                Annotation[] parameterAnnotation = parameterAnnotations[i];
                if (parameterAnnotation != null && parameterAnnotation.length > 0) {
                    if (parameterAnnotation[0].annotationType() == FromQuery.class) {
                        String value = ((FromQuery) parameterAnnotation[0]).value();
                        Deque<String> strings = exchange.getQueryParameters().get(value);
                        if (strings != null) {
                            args[i] = inferValue(parameterType, strings.getFirst());
                        }
                        continue;
                    } else if (parameterAnnotation[0].annotationType() == RequestPath.class) {
                        args[i] = rawPath;
                        continue;
                    }
                }
                if (splitIndex < split.length) {
                    String stringVal = split[splitIndex];
                    Object val = inferValue(parameterType, stringVal);
                    if (val != NOVAL) {
                        args[i] = val;
                        splitIndex++;
                        continue;
                    }
                }
                // specials
                if (parameterType == HeaderMap.class) {
                    args[i] = exchange.getRequestHeaders();
                } else if (parameterType == String[].class) {
                    args[i] = split;
                } else if (parameterType == JsonObject.class || parameterType == JsonValue.class) {
                    args[i] = Json.parse(new String(postData, "UTF-8"));
                } else if (parameterType == byte[].class) {
                    args[i] = postData;
                } else if (parameterType == Map.class) {
                    args[i] = exchange.getQueryParameters();
                } else {
                    System.out.println("unsupported parameter type " + parameterType.getName());
                }
            }
        } catch (Throwable th) {
            th.printStackTrace();
            Log.Warn(this, th, postData != null ? new String(postData, 0) : "");
            exchange.setStatusCode(400);
            exchange.getResponseSender().send("" + th + "\n");
            return;
        }
        // change: allow incomplete parameters
        // if ( splitIndex != split.length ) {
        // exchange.setResponseCode(400);
        // exchange.endExchange();
        // return;
        // }
        Object invoke = m.invoke(facade.getActorRef(), args);
        if (invoke instanceof IPromise) {
            checkExchangeState(exchange);
            ((IPromise) invoke).then((r, e) -> {
                if (e != null) {
                    exchange.setStatusCode(500);
                    exchange.getResponseSender().send("" + e);
                } else {
                    checkExchangeState(exchange);
                    if (r instanceof String) {
                        exchange.setStatusCode(400);
                        exchange.getResponseSender().send("" + e);
                    } else if (r instanceof Integer) {
                        exchange.setStatusCode((Integer) r);
                        exchange.endExchange();
                    } else if (r instanceof Pair) {
                        exchange.setStatusCode((Integer) ((Pair) r).car());
                        exchange.getResponseSender().send("" + ((Pair) r).cdr());
                    } else if (r instanceof JsonValue) {
                        exchange.getResponseSender().send(r.toString());
                    } else if (r instanceof Serializable) {
                        byte[] bytes = jsonConf.asByteArray(r);
                        exchange.getResponseSender().send(ByteBuffer.wrap(bytes));
                    }
                }
            });
        } else if (invoke == null) {
            exchange.setStatusCode(200);
            exchange.endExchange();
        }
    } catch (Exception e) {
        Log.Warn(this, e);
        exchange.setStatusCode(500);
        exchange.getResponseSender().send("" + e);
        exchange.endExchange();
        return;
    }
}

Example 18 with IPromise

use of org.nustaq.kontraktor.IPromise in project kontraktor by RuedigerMoeller.

the class AsyncHttpActor method post.

public IPromise<HttpResponse> post(String url, String postData, String... headers) {
    Promise res = new Promise();
    if (url == null) {
        int debug = 1;
    }
    try {
        HttpPost req = new HttpPost(url);
        setHeaders(req, headers);
        beChrome(req);
        req.setEntity(new StringEntity(postData));
        getClient().execute(req, new FutureCallback<HttpResponse>() {

            @Override
            public void completed(HttpResponse result) {
                // switch to actor thread
                execute(() -> res.resolve(result));
            }

            @Override
            public void failed(Exception ex) {
                // switch to actor thread
                execute(() -> res.reject(ex));
            }

            @Override
            public void cancelled() {
                // switch to actor thread
                execute(() -> res.reject("cancelled"));
            }
        });
    } catch (Throwable th) {
        Log.Warn(this, "get fail " + th + " " + url);
        res.reject(th);
    }
    return res;
}

Example 19 with IPromise

use of org.nustaq.kontraktor.IPromise in project kontraktor by RuedigerMoeller.

the class JNPM method npmInstall.

public IPromise<InstallResult> npmInstall(String module, String versionSpec, File importingModuleDir) {
    if (versionSpec == null) {
        versionSpec = "latest";
    }
    File nodeModule = new File(nodeModulesDir, module);
    boolean installPrivate = false;
    if (nodeModule.exists()) {
        File targetDir = importingModuleDir.getName().equals("node_modules") ? nodeModulesDir : new File(importingModuleDir, "node_modules");
        String moduleKey = createModuleKey(module, targetDir);
        List<Promise> promises = packagesUnderway.get(moduleKey);
        if (promises != null) {
            int debug = 1;
        }
        String finalVersionSpec1 = versionSpec;
        if (// timing: not unpacked
        promises != null && promises.size() > 0) {
            Log.Warn(this, "Delaying because in transfer:" + module + " " + targetDir.getAbsolutePath());
            Promise p = new Promise();
            delayed(1000, () -> npmInstall(module, finalVersionSpec1, importingModuleDir).then(p));
            return p;
        }
        File pack = new File(nodeModule, "package.json");
        if (pack.exists() && versionSpec.indexOf(".") > 0) {
            String version = null;
            String vspec = null;
            try {
                JsonObject pjson = Json.parse(new FileReader(pack)).asObject();
                version = pjson.getString("version", null);
                vspec = versionSpec;
                if (!matches(version, vspec)) {
                    Log.Warn(this, "version mismatch for module '" + module + "'. requested:" + versionSpec + " from '" + importingModuleDir.getName() + "' installed:" + version + ". (delete module dir for update)");
                    if (config.getVersion(module) == null) {
                        installPrivate = true;
                        Log.Warn(this, "   installing private " + module);
                    } else {
                        Log.Warn(this, "   stick with mismatch because of jnpm.kson config entry for " + module);
                    }
                }
            } catch (Exception e) {
                Log.Error(this, "can't parse package.json in " + module + " " + importingModuleDir.getAbsolutePath() + ". Retry");
                Promise p = new Promise();
                delayed(1000, () -> npmInstall(module, finalVersionSpec1, importingModuleDir).then(p));
                return p;
            }
        } else
            return resolve(InstallResult.EXISTS);
    }
    Promise p = new Promise();
    // fire in parallel
    IPromise<List<String>> versionProm = getVersions(module);
    IPromise<JsonObject> distributionsProm = getDistributions(module);
    String finalVersionSpec = versionSpec == null ? "latest" : versionSpec;
    boolean finalInstallPrivate = installPrivate;
    distributionsProm.then((dist, derr) -> {
        if (dist == null) {
            dist = new JsonObject();
            Log.Error(this, "distribution is empty or error " + derr + " in module:" + module);
        }
        JsonObject finalDist = dist;
        versionProm.then((versions, verr) -> {
            if (versions == null) {
                p.reject(verr);
                return;
            }
            String resolvedVersion = getVersion(module, finalVersionSpec, versions, finalDist);
            http.getContent(config.getRepo() + "/" + module + "/" + resolvedVersion).then((cont, err) -> {
                if (cont != null) {
                    JsonObject pkg = Json.parse(cont).asObject();
                    String tarUrl = pkg.get("dist").asObject().get("tarball").asString();
                    JsonValue dependencies = pkg.get("dependencies");
                    if (dependencies == null)
                        dependencies = new JsonObject();
                    else
                        dependencies = dependencies.asObject();
                    JsonValue peerdependencies = pkg.get("peerDependencies");
                    if (peerdependencies != null) {
                        ((JsonObject) dependencies).merge(peerdependencies.asObject());
                    }
                    File targetDir = finalInstallPrivate ? new File(importingModuleDir, "node_modules") : nodeModulesDir;
                    if (finalInstallPrivate)
                        targetDir.mkdirs();
                    IPromise depP = downLoadAndInstall(tarUrl, module, resolvedVersion, targetDir);
                    List deps = new ArrayList<>();
                    deps.add(depP);
                    File importingDir = new File(nodeModulesDir, module);
                    ((JsonObject) dependencies).forEach(member -> {
                        deps.add(npmInstall(member.getName(), member.getValue().asString(), importingDir));
                    });
                    all(deps).then((r, e) -> {
                        p.resolve(InstallResult.INSTALLED);
                    });
                } else {
                    p.reject("no such module");
                }
            });
        });
    });
    return p;
}

Example 20 with IPromise

use of org.nustaq.kontraktor.IPromise in project kontraktor by RuedigerMoeller.

the class JNPM method Install.

public static IPromise<InstallResult> Install(String module, String versionSpec, File modulesDir, JNPMConfig config) {
    Promise p = new Promise();
    JNPM unpkgCrawler = AsActor(JNPM.class, AsyncHttpActor.getSingleton().getScheduler());
    unpkgCrawler.init(modulesDir, config);
    unpkgCrawler.npmInstall(module, versionSpec, modulesDir).then((r, e) -> {
        // Log.Info(JNPM.class,"DONE "+r+" "+e);
        unpkgCrawler.stop();
        p.complete(r, e);
    });
    return p;
}