/*
* Copyright 2013-2014 the original author or authors.
*
* Licensed 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.springframework.cloud.netflix.zuul.filters;
import java.util.ArrayList;
import java.util.Collection;
import java.util.List;
import org.springframework.core.annotation.AnnotationAwareOrderComparator;
import org.springframework.util.Assert;
/**
* RouteLocator that composes multiple RouteLocators.
*
* @author Johannes Edmeier
*
*/
public class CompositeRouteLocator implements RefreshableRouteLocator {
private final Collection<? extends RouteLocator> routeLocators;
private ArrayList<RouteLocator> rl;
public CompositeRouteLocator(Collection<? extends RouteLocator> routeLocators) {
Assert.notNull(routeLocators, "'routeLocators' must not be null");
rl = new ArrayList<>(routeLocators);
AnnotationAwareOrderComparator.sort(rl);
this.routeLocators = rl;
}
@Override
public Collection<String> getIgnoredPaths() {
List<String> ignoredPaths = new ArrayList<>();
for (RouteLocator locator : routeLocators) {
ignoredPaths.addAll(locator.getIgnoredPaths());
}
return ignoredPaths;
}
@Override
public List<Route> getRoutes() {
List<Route> route = new ArrayList<>();
for (RouteLocator locator : routeLocators) {
route.addAll(locator.getRoutes());
}
return route;
}
@Override
public Route getMatchingRoute(String path) {
for (RouteLocator locator : routeLocators) {
Route route = locator.getMatchingRoute(path);
if (route != null) {
return route;
}
}
return null;
}
@Override
public void refresh() {
for (RouteLocator locator : routeLocators) {
if (locator instanceof RefreshableRouteLocator) {
((RefreshableRouteLocator) locator).refresh();
}
}
}
}