Java Code Examples for org.apache.jena.atlas.json.JSON#write()

public static void json(HttpServletRequest req, HttpServletResponse resp, JsonValue responseContent) {
    try { 
        resp.setHeader(HttpNames.hCacheControl, "no-cache");
        resp.setHeader(HttpNames.hContentType,  WebContent.contentTypeJSON);
        resp.setStatus(HttpSC.OK_200);
        try(ServletOutputStream out = resp.getOutputStream(); IndentedWriter b = new IndentedWriter(out); ) {
            b.setFlatMode(true);
            JSON.write(b, responseContent);
            b.ensureStartOfLine();
            b.flush();
            out.write('\n');
        }
    } catch (IOException ex) {
        LOG.warn("json: IOException", ex);
        try { 
            resp.sendError(HttpSC.INTERNAL_SERVER_ERROR_500, "Internal server error");
        } catch (IOException ex2) {}
    }
}
 

private void roundTrip(DeltaServerConfig c) {
    JsonObject obj = c.asJSON();
    DeltaServerConfig c2 = DeltaServerConfig.create(obj);
    if ( ! c.equals(c2) ) {
        System.out.println("c  : "+c.zkMode);
        System.out.println("c2 : "+c2.zkMode);
        JSON.write(obj);
        JSON.write(c2.asJSON());
    }
    assertEquals(c, c2);
}
 

/**
 * Set up a disk file area for the data source
 * @param root
 * @param patchStore
 * @param dsd
 */
/*package*/ public static Path setupDataSourceByFile(Path root, PatchStore patchStore, DataSourceDescription dsd) {
    // Disk file setup

    Path sourcePath = root.resolve(dsd.getName());

    if ( patchStore.logExists(dsd.getId()) )
        throw new DeltaBadRequestException("DataSource area already exists and is active at: "+sourcePath);

    // Checking.
    // The area can exist, but it must not be formatted for a DataSource
    //        if ( sourceArea.exists() )
    //            throw new DeltaException("Area already exists");

    if ( FileArea.isMinimalDataSource(sourcePath) )
        throw new DeltaBadRequestException("DataSource area already exists at: "+sourcePath);
    if ( ! FileArea.isEnabled(sourcePath) )
        throw new DeltaBadRequestException("DataSource area disabled: "+sourcePath);

    try {
        Files.createDirectories(sourcePath);
    }
    catch (IOException e) {
        throw new DeltaBadRequestException("Failed to create DataSource area: "+sourcePath);
    }

    // Create source.cfg.
    JsonObject obj = dsd.asJson();
    obj.put(F_LOG_TYPE, patchStore.getProvider().getShortName());
    try (OutputStream out = Files.newOutputStream(sourcePath.resolve(FileNames.DS_CONFIG))) {
        JSON.write(out, obj);
    } catch (IOException ex)  { throw IOX.exception(ex); }
    return sourcePath;
}
 

private void writeConf(BackupConfig cfg) {
    JsonObject obj = JSONX.buildObject(b->{
        b   .pair(jPort, cfg.port)
            .key(jLogs).startArray();
        cfg.logs.forEach(a->
            b.startObject().pair(jName, a.name).pair(jDir, a.dir).pair(jFile, a.file).finishObject()
            );
        b.finishArray();
    });
    JSON.write(System.out, obj);
}
 

public static void writeJSON(DeltaServerConfig config, OutputStream out) {
    JsonObject obj = config.asJSON();
    JSON.write(out, obj);
}
 

private static byte[] jsonBytes(JsonValue json) {
    ByteArrayOutputStream out = new ByteArrayOutputStream(8*1024);
    JSON.write(out, json);
    return out.toByteArray();
}