/*
* Copyright 2016 The Simple File Server 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.sfs.validate;
import com.google.common.base.Optional;
import io.vertx.core.json.JsonObject;
import org.sfs.util.HttpRequestValidationException;
import org.sfs.vo.PersistentObject;
import org.sfs.vo.TransientVersion;
import rx.functions.Func1;
import static java.lang.String.format;
import static java.net.HttpURLConnection.HTTP_NOT_FOUND;
public class ValidatePersistentObjectLatestVersionExists implements Func1<PersistentObject, TransientVersion> {
@Override
public TransientVersion call(PersistentObject xObject) {
Optional<TransientVersion> found = xObject.getNewestVersion();
if (!found.isPresent()) {
JsonObject jsonObject = new JsonObject()
.put("message", format("Latest version does not exist"));
throw new HttpRequestValidationException(HTTP_NOT_FOUND, jsonObject);
}
return found.get();
}
}