io.nats.client.impl.NatsObjectStoreManagement Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of jnats Show documentation
Client library for working with the NATS messaging system.
The newest version!
// Copyright 2022 The NATS 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 io.nats.client.impl;

import io.nats.client.JetStreamApiException;
import io.nats.client.ObjectStoreManagement;
import io.nats.client.ObjectStoreOptions;
import io.nats.client.api.ObjectStoreConfiguration;
import io.nats.client.api.ObjectStoreStatus;
import io.nats.client.api.StreamConfiguration;
import io.nats.client.support.Validator;

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import static io.nats.client.support.NatsObjectStoreUtil.*;

public class NatsObjectStoreManagement implements ObjectStoreManagement {
    private final NatsJetStreamManagement jsm;

    NatsObjectStoreManagement(NatsConnection connection, ObjectStoreOptions oso) throws IOException {
        jsm = new NatsJetStreamManagement(connection, oso == null ? null : oso.getJetStreamOptions());
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ObjectStoreStatus create(ObjectStoreConfiguration config) throws IOException, JetStreamApiException {
        StreamConfiguration sc = config.getBackingConfig();
        return new ObjectStoreStatus(jsm.addStream(sc));
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public List getBucketNames() throws IOException, JetStreamApiException {
        List buckets = new ArrayList<>();
        List names = jsm.getStreamNames();
        for (String name : names) {
            if (name.startsWith(OBJ_STREAM_PREFIX)) {
                buckets.add(extractBucketName(name));
            }
        }
        return buckets;
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public ObjectStoreStatus getStatus(String bucketName) throws IOException, JetStreamApiException {
        Validator.validateBucketName(bucketName, true);
        return new ObjectStoreStatus(jsm.getStreamInfo(toStreamName(bucketName)));
    }

    /**
     * {@inheritDoc}
     */
    @Override
    public List getStatuses() throws IOException, JetStreamApiException {
        List bucketNames = getBucketNames();
        List statuses = new ArrayList<>();
        for (String name : bucketNames) {
            statuses.add(new ObjectStoreStatus(jsm.getStreamInfo(toStreamName(name))));
        }
        return statuses;
    }
    /**
     * {@inheritDoc}
     */
    @Override
    public void delete(String bucketName) throws IOException, JetStreamApiException {
        Validator.validateBucketName(bucketName, true);
        jsm.deleteStream(toStreamName(bucketName));
    }
}