/*
* 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.nodes.compute.account;
import io.vertx.core.Handler;
import io.vertx.core.http.HttpServerResponse;
import org.sfs.SfsRequest;
import org.sfs.auth.Authenticate;
import org.sfs.elasticsearch.account.ListContainers;
import org.sfs.elasticsearch.account.LoadAccount;
import org.sfs.metadata.Metadata;
import org.sfs.rx.ConnectionCloseTerminus;
import org.sfs.validate.ValidateAccountPath;
import org.sfs.validate.ValidateActionAdmin;
import org.sfs.validate.ValidatePersistentAccountExists;
import org.sfs.vo.PersistentAccount;
import rx.Observable;
import rx.functions.Func1;
import java.math.BigDecimal;
import java.util.SortedSet;
import static java.lang.String.format;
import static java.lang.String.valueOf;
import static java.math.BigDecimal.ROUND_HALF_UP;
import static java.net.HttpURLConnection.HTTP_NO_CONTENT;
import static org.sfs.rx.Defer.aVoid;
import static org.sfs.rx.Defer.just;
import static org.sfs.util.SfsHttpHeaders.X_ACCOUNT_BYTES_USED;
import static org.sfs.util.SfsHttpHeaders.X_ACCOUNT_CONTAINER_COUNT;
import static org.sfs.util.SfsHttpHeaders.X_ACCOUNT_OBJECT_COUNT;
import static org.sfs.util.SfsHttpHeaders.X_ADD_ACCOUNT_META_PREFIX;
import static org.sfs.util.SfsHttpQueryParams.LIMIT;
import static org.sfs.vo.ObjectPath.fromSfsRequest;
public class HeadAccount implements Handler<SfsRequest> {
@Override
public void handle(final SfsRequest httpServerRequest) {
aVoid()
.flatMap(new Authenticate(httpServerRequest))
.flatMap(new ValidateActionAdmin(httpServerRequest))
.map(aVoid -> fromSfsRequest(httpServerRequest))
.map(new ValidateAccountPath())
.map(objectPath -> objectPath.accountPath().get())
.flatMap(new LoadAccount(httpServerRequest.vertxContext()))
.map(new ValidatePersistentAccountExists())
.flatMap(new Func1<PersistentAccount, Observable<PersistentAccount>>() {
@Override
public Observable<PersistentAccount> call(final PersistentAccount persistentAccount) {
httpServerRequest.params().set(LIMIT, "0");
return just(persistentAccount)
.flatMap(new ListContainers(httpServerRequest))
.map(containerList -> {
HttpServerResponse httpServerResponse = httpServerRequest.response();
httpServerResponse.putHeader(X_ACCOUNT_OBJECT_COUNT, valueOf(containerList.getObjectCount()));
httpServerResponse.putHeader(X_ACCOUNT_CONTAINER_COUNT, valueOf(containerList.getContainerCount()));
httpServerResponse.putHeader(
X_ACCOUNT_BYTES_USED,
BigDecimal.valueOf(containerList.getBytesUsed())
.setScale(0, ROUND_HALF_UP)
.toString()
);
return persistentAccount;
});
}
})
.single()
.subscribe(new ConnectionCloseTerminus<PersistentAccount>(httpServerRequest) {
@Override
public void onNext(PersistentAccount account) {
HttpServerResponse httpServerResponse = httpServerRequest.response();
Metadata metadata = account.getMetadata();
for (String key : metadata.keySet()) {
SortedSet<String> values = metadata.get(key);
if (values != null && !values.isEmpty()) {
httpServerResponse.putHeader(format("%s%s", X_ADD_ACCOUNT_META_PREFIX, key), values);
}
}
httpServerResponse.setStatusCode(HTTP_NO_CONTENT);
}
});
}
}