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ExpressRouter.java
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98 lines (77 loc) · 2.84 KB
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package express;
import express.filter.FilterImpl;
import express.filter.FilterLayerHandler;
import express.filter.FilterTask;
import express.filter.FilterWorker;
import express.http.HttpRequestHandler;
import java.util.ArrayList;
/**
* @author Simon Reinisch
* Basic implementation of an router
*/
public class ExpressRouter implements Router {
private final ArrayList<FilterWorker> workers;
private final FilterLayerHandler handler;
{
// Initialize
workers = new ArrayList<>();
handler = new FilterLayerHandler(2);
}
public ExpressRouter use(HttpRequestHandler middleware) {
addMiddleware("*", "*", middleware);
return this;
}
public ExpressRouter use(String context, HttpRequestHandler middleware) {
addMiddleware("*", context, middleware);
return this;
}
public ExpressRouter use(String context, String requestMethod, HttpRequestHandler middleware) {
addMiddleware(requestMethod.toUpperCase(), context, middleware);
return this;
}
private void addMiddleware(String requestMethod, String context, HttpRequestHandler middleware) {
// Validate middleware
if (middleware instanceof FilterTask) {
workers.add(new FilterWorker((FilterTask) middleware));
}
handler.add(0, new FilterImpl(requestMethod, context, middleware));
}
public ExpressRouter all(HttpRequestHandler request) {
handler.add(1, new FilterImpl("*", "*", request));
return this;
}
public ExpressRouter all(String context, HttpRequestHandler request) {
handler.add(1, new FilterImpl("*", context, request));
return this;
}
public ExpressRouter all(String context, String requestMethod, HttpRequestHandler request) {
handler.add(1, new FilterImpl(requestMethod, context, request));
return this;
}
public ExpressRouter get(String context, HttpRequestHandler request) {
handler.add(1, new FilterImpl("GET", context, request));
return this;
}
public ExpressRouter post(String context, HttpRequestHandler request) {
handler.add(1, new FilterImpl("POST", context, request));
return this;
}
public ExpressRouter put(String context, HttpRequestHandler request) {
handler.add(1, new FilterImpl("PUT", context, request));
return this;
}
public ExpressRouter delete(String context, HttpRequestHandler request) {
handler.add(1, new FilterImpl("DELETE", context, request));
return this;
}
public ExpressRouter patch(String context, HttpRequestHandler request) {
handler.add(1, new FilterImpl("PATCH", context, request));
return this;
}
ArrayList<FilterWorker> getWorker() {
return workers;
}
FilterLayerHandler getHandler() {
return handler;
}
}