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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 AT&T Intellectual Property. 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.
* 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.
* ============LICENSE_END=========================================================
*/
package org.onap.aai.workarounds;
import java.net.MalformedURLException;
import java.net.URI;
import java.net.URISyntaxException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class LegacyURITransformer {
private final Pattern legacyUriPattern = Pattern.compile("/aai/servers/(?<version>v[23])/(?<tenantKey>.*?)/vservers/(?<vserverKey>[^/]*?$)");
private final Pattern currentUriPattern = Pattern.compile("/aai/(?<version>v\\d+)/cloud-infrastructure/tenants/tenant/(?<tenantKey>.*?)/vservers/vserver/(?<vserverKey>[^/]*?$)");
/**
* Instantiates a new legacy URL transformer.
*/
private LegacyURITransformer() {
}
private static class Helper {
private static final LegacyURITransformer INSTANCE = new LegacyURITransformer();
}
/**
* Gets the single instance of LegacyURLTransformer.
*
* @return single instance of LegacyURLTransformer
*/
public static LegacyURITransformer getInstance() {
return Helper.INSTANCE;
}
/**
* Gets the legacy URL.
*
* @param url the url
* @return the legacy URL
* @throws URISyntaxException
* @throws MalformedURLException the malformed URL exception
*/
public URI getLegacyURI(URI url) throws URISyntaxException {
String replacement = "/aai/servers/${version}/${tenantKey}/vservers/${vserverKey}";
String result = url.toString();
Matcher m = currentUriPattern.matcher(result);
if (m.find()) {
result = m.replaceFirst(replacement);
}
return new URI(result);
}
/**
* Gets the current URL.
*
* @param url the url
* @return the current URL
* @throws URISyntaxException
* @throws MalformedURLException the malformed URL exception
*/
public URI getCurrentURI(URI url) throws URISyntaxException {
String replacement = "/aai/${version}/cloud-infrastructure/tenants/tenant/${tenantKey}/vservers/vserver/${vserverKey}";
String result = url.toString();
Matcher m = legacyUriPattern.matcher(result);
if (m.find()) {
result = m.replaceFirst(replacement);
}
return new URI(result);
}
}
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