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

Example 16 with Promise

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

the class PromiseSampleService method getDataSimple1.

public IPromise<String> getDataSimple1() {
    Promise result = new Promise();
    result.resolve("Data");
    return result;
}

Example 17 with Promise

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

the class PromiseSampleService method getDataAsync.

// //////////////////////////////////////////////////
public IPromise<String> getDataAsync() {
    Promise p = new Promise();
    // simulate async long running op
    delayed(3000, () -> p.resolve("Data"));
    // returns before result is present
    return p;
}

Example 18 with Promise

use of org.nustaq.kontraktor.Promise 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 19 with Promise

use of org.nustaq.kontraktor.Promise 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 20 with Promise

use of org.nustaq.kontraktor.Promise 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;
}