Examples with ConfigListener net.morimekta.providence.config.ConfigListener used on opensource projects

Example 1 with ConfigListener

use of net.morimekta.providence.config.ConfigListener in project providence by morimekta.

the class ProvidenceConfigSupplierTest method testReferencedFilesOnUpdatesFromCanonicalFiles.

@Test
public void testReferencedFilesOnUpdatesFromCanonicalFiles() throws IOException {
    SimpleTypeRegistry registry = new SimpleTypeRegistry();
    registry.registerRecursively(Service.kDescriptor);
    watcher = new FileWatcher();
    parser = new ProvidenceConfigParser(registry, true);
    File service = new File(tmp.getRoot(), "service.config").getAbsoluteFile();
    File include = new File(tmp.getRoot(), "include.config").getAbsoluteFile();
    File v1 = tmp.newFolder("..dist", "v1").getAbsoluteFile();
    File service1 = new File(v1, "service.config").getAbsoluteFile();
    File include1 = new File(v1, "include.config").getAbsoluteFile();
    File v2 = tmp.newFolder("..dist", "v2").getAbsoluteFile();
    File service2 = new File(v2, "service.config").getAbsoluteFile();
    File include2 = new File(v2, "include.config").getAbsoluteFile();
    // write v1 config
    writeContentTo("config.ServicePort {\n" + "  port = 8080\n" + "}\n", include1);
    writeContentTo("include \"include.config\" as inc\n" + "config.Service {\n" + "  name = \"test\"\n" + "  http = inc\n" + "}\n", service1);
    // write v2 config
    writeContentTo("config.ServicePort {\n" + "  port = 80\n" + "}\n", include2);
    writeContentTo("include \"include.config\" as inc\n" + "config.Service {\n" + "  name = \"other\"\n" + "  http = inc\n" + "}\n", service2);
    Files.createSymbolicLink(service.toPath(), service1.toPath());
    Files.createSymbolicLink(include.toPath(), include1.toPath());
    ProvidenceConfigSupplier<Service, Service._Field> config = new ProvidenceConfigSupplier<>(service, null, watcher, parser, clock);
    Service serviceConfig = config.get();
    AtomicReference<Service> serviceRef = new AtomicReference<>(serviceConfig);
    assertThat(serviceConfig.getName(), is("test"));
    assertThat(serviceConfig.getHttp().getPort(), is((short) 8080));
    AtomicBoolean updated = new AtomicBoolean();
    ConfigListener<Service, Service._Field> listener = cf -> {
        serviceRef.set(cf);
        updated.set(true);
    };
    config.addListener(listener);
    File tmpFile = new File(tmp.getRoot(), "..tmp");
    Files.createSymbolicLink(tmpFile.toPath(), service2.toPath());
    Files.move(tmpFile.toPath(), service.toPath(), StandardCopyOption.REPLACE_EXISTING);
    waitAtMost(Duration.ONE_SECOND).untilTrue(updated);
    serviceConfig = serviceRef.get();
    assertThat(serviceConfig.getName(), is("other"));
    assertThat(serviceConfig.getHttp().getPort(), is((short) 80));
}