(https://github.com/Netflix/eureka/blob/a7a8d278e6399bbff5faa49b9fcbcd7ea9e854f4/eureka-core/src/test/java/com/netflix/eureka/mock/MockRemoteEurekaServer.java alınan) aşağıdaki kod size yardımcı olabilir;
public class MockRemoteEurekaServer extends ExternalResource {
public static final String EUREKA_API_BASE_PATH = "/eureka/v2/";
private final Map<String, Application> applicationMap;
private final Map<String, Application> applicationDeltaMap;
private final Server server;
private boolean sentDelta;
private int port;
private volatile boolean simulateNotReady;
public MockRemoteEurekaServer(int port, Map<String, Application> applicationMap,
Map<String, Application> applicationDeltaMap) {
this.applicationMap = applicationMap;
this.applicationDeltaMap = applicationDeltaMap;
ServletHandler handler = new AppsResourceHandler();
EurekaServerConfig serverConfig = new DefaultEurekaServerConfig();
EurekaServerContext serverContext = mock(EurekaServerContext.class);
when(serverContext.getServerConfig()).thenReturn(serverConfig);
handler.addFilterWithMapping(ServerRequestAuthFilter.class, "/*", 1).setFilter(new ServerRequestAuthFilter(serverContext));
handler.addFilterWithMapping(RateLimitingFilter.class, "/*", 1).setFilter(new RateLimitingFilter(serverContext));
server = new Server(port);
server.addHandler(handler);
System.out.println(String.format(
"Created eureka server mock with applications map %s and applications delta map %s",
stringifyAppMap(applicationMap), stringifyAppMap(applicationDeltaMap)));
}
@Override
protected void before() throws Throwable {
start();
}
@Override
protected void after() {
try {
stop();
} catch (Exception e) {
Assert.fail(e.getMessage());
}
}
public void start() throws Exception {
server.start();
port = server.getConnectors()[0].getLocalPort();
}
public void stop() throws Exception {
server.stop();
}
public boolean isSentDelta() {
return sentDelta;
}
public int getPort() {
return port;
}
public void simulateNotReady(boolean simulateNotReady) {
this.simulateNotReady = simulateNotReady;
}
private static String stringifyAppMap(Map<String, Application> applicationMap) {
StringBuilder builder = new StringBuilder();
for (Map.Entry<String, Application> entry : applicationMap.entrySet()) {
String entryAsString = String.format("{ name : %s , instance count: %d }", entry.getKey(),
entry.getValue().getInstances().size());
builder.append(entryAsString);
}
return builder.toString();
}
private class AppsResourceHandler extends ServletHandler {
@Override
public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch)
throws IOException, ServletException {
if (simulateNotReady) {
response.setStatus(HttpServletResponse.SC_FORBIDDEN);
return;
}
String authName = request.getHeader(AbstractEurekaIdentity.AUTH_NAME_HEADER_KEY);
String authVersion = request.getHeader(AbstractEurekaIdentity.AUTH_VERSION_HEADER_KEY);
String authId = request.getHeader(AbstractEurekaIdentity.AUTH_ID_HEADER_KEY);
Assert.assertNotNull(authName);
Assert.assertNotNull(authVersion);
Assert.assertNotNull(authId);
Assert.assertTrue(!authName.equals(ServerRequestAuthFilter.UNKNOWN));
Assert.assertTrue(!authVersion.equals(ServerRequestAuthFilter.UNKNOWN));
Assert.assertTrue(!authId.equals(ServerRequestAuthFilter.UNKNOWN));
for (FilterHolder filterHolder : this.getFilters()) {
filterHolder.getFilter().doFilter(request, response, new FilterChain() {
@Override
public void doFilter(ServletRequest request, ServletResponse response)
throws IOException, ServletException {
// do nothing;
}
});
}
String pathInfo = request.getPathInfo();
System.out.println(
"Eureka resource mock, received request on path: " + pathInfo + ". HTTP method: |" + request
.getMethod() + '|');
boolean handled = false;
if (null != pathInfo && pathInfo.startsWith("")) {
pathInfo = pathInfo.substring(EUREKA_API_BASE_PATH.length());
if (pathInfo.startsWith("apps/delta")) {
Applications apps = new Applications();
for (Application application : applicationDeltaMap.values()) {
apps.addApplication(application);
}
apps.setAppsHashCode(apps.getReconcileHashCode());
sendOkResponseWithContent((Request) request, response, toJson(apps));
handled = true;
sentDelta = true;
} else if (pathInfo.startsWith("apps")) {
Applications apps = new Applications();
for (Application application : applicationMap.values()) {
apps.addApplication(application);
}
apps.setAppsHashCode(apps.getReconcileHashCode());
sendOkResponseWithContent((Request) request, response, toJson(apps));
handled = true;
}
}
if (!handled) {
response.sendError(HttpServletResponse.SC_NOT_FOUND,
"Request path: " + pathInfo + " not supported by eureka resource mock.");
}
}
private void sendOkResponseWithContent(Request request, HttpServletResponse response, String content)
throws IOException {
response.setContentType("application/json; charset=UTF-8");
response.setStatus(HttpServletResponse.SC_OK);
response.getOutputStream().write(content.getBytes("UTF-8"));
response.getOutputStream().flush();
request.setHandled(true);
System.out.println("Eureka resource mock, sent response for request path: " + request.getPathInfo() +
" with content" + content);
}
}
private String toJson(Applications apps) throws IOException {
return new EurekaJsonJacksonCodec().getObjectMapper(Applications.class).writeValueAsString(apps);
}
}
Bu mesaj, bazı farklı yaklaşımları tartışır: https://opencredo.com/working-locally-with-microservices/ – MarkOfHall
makale gibi temelleri hakkında sadece görüşmelere bakar ve yüksek düzeyde yazılmıştır. Yaklaşımlar oldukça açık, birisinin gerçekten bunu yapmak için iyi bir yol bulmasıyla daha çok ilgileniyorum. Bahsedilen yaklaşma ninja kod maymunun bir yolu olduğunu, ancak bu hala bana ters mühendislik yapmak ve "sahte eureka" korumak için bana gerekli ... –