org.openqa.selenium.grid.web.CombinedHandler Maven / Gradle / Ivy

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Selenium automates browsers. That's it! What you do with that power is entirely up to you.

There is a newer version: 4.0.0-alpha-2

// Licensed to the Software Freedom Conservancy (SFC) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The SFC licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

package org.openqa.selenium.grid.web;

import org.openqa.selenium.json.Json;
import org.openqa.selenium.remote.http.HttpRequest;
import org.openqa.selenium.remote.http.HttpResponse;

import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.function.Predicate;

public class CombinedHandler implements Predicate, CommandHandler {

  private final Map, CommandHandler> handlers = new HashMap<>();

  public  & CommandHandler> void addHandler(X handler) {
    handlers.put(handler, handler);
  }

  @Override
  public boolean test(HttpRequest request) {
    return handlers.keySet().stream()
        .map(p -> p.test(request))
        .reduce(Boolean::logicalOr)
        .orElse(false);
  }

  @Override
  public void execute(HttpRequest req, HttpResponse resp) throws IOException {
    handlers.entrySet().stream()
        .filter(entry -> entry.getKey().test(req))
        .findFirst()
        .map(Map.Entry::getValue)
        .orElse(new NoHandler(new Json()))
        .execute(req, resp);
  }
}