org.apache.inlong.sort.filesystem.shaded.com.amazonaws.regions.AbstractRegionMetadataProvider Maven / Gradle / Ivy
/*
* Copyright 2016-2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file 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 com.amazonaws.regions;
import java.net.URI;
/**
* An abstract implementation of {@link RegionMetadataProvider}
*/
public abstract class AbstractRegionMetadataProvider implements
RegionMetadataProvider {
@Override
public Region getRegionByEndpoint(String endpoint) {
String host = getHost(endpoint);
for (Region region : getRegions()) {
for (String serviceEndpoint :
region.getAvailableEndpoints()) {
if (host.equals(getHost(serviceEndpoint))) {
return region;
}
}
}
throw new IllegalArgumentException(
"No region found with any service for endpoint " + endpoint);
}
/**
* Parse the host portion out of an endpoint (which may or may not
* contain a scheme).
*
* @param endpoint the endpoint to parse
* @return the host portion of the endpoint
*/
protected static String getHost(final String endpoint) {
try {
String host = URI.create(endpoint).getHost();
if (host == null) {
host = URI.create("http://" + endpoint).getHost();
}
if (host == null) {
return "";
}
return host;
} catch (IllegalArgumentException e) {
// Couldn't parse this as an endpoint. Assume it's not a valid endpoint, and say that there's no hostname.
return "";
}
}
}