[GitHub] nifi pull request #2219: NiFi-4436: Add UI controls for starting/stopping/re...

[ijokarumawak <gi...@git.apache.org>]

Github user ijokarumawak commented on a diff in the pull request:

    https://github.com/apache/nifi/pull/2219#discussion_r159118517
  
    --- Diff: nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-core/src/main/java/org/apache/nifi/registry/flow/StandardFlowRegistryClient.java ---
    @@ -0,0 +1,102 @@
    +/*
    + * Licensed to the Apache Software Foundation (ASF) under one or more
    + * contributor license agreements.  See the NOTICE file distributed with
    + * this work for additional information regarding copyright ownership.
    + * The ASF licenses this file to You 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.apache.nifi.registry.flow;
    +
    +import java.net.URI;
    +import java.net.URISyntaxException;
    +import java.util.Set;
    +import java.util.concurrent.ConcurrentHashMap;
    +import java.util.concurrent.ConcurrentMap;
    +
    +import javax.net.ssl.SSLContext;
    +
    +import org.apache.nifi.framework.security.util.SslContextFactory;
    +import org.apache.nifi.util.NiFiProperties;
    +
    +public class StandardFlowRegistryClient implements FlowRegistryClient {
    +    private NiFiProperties nifiProperties;
    +    private ConcurrentMap<String, FlowRegistry> registryById = new ConcurrentHashMap<>();
    +
    +    @Override
    +    public FlowRegistry getFlowRegistry(String registryId) {
    +        return registryById.get(registryId);
    +    }
    +
    +    @Override
    +    public Set<String> getRegistryIdentifiers() {
    +        return registryById.keySet();
    +    }
    +
    +    @Override
    +    public void addFlowRegistry(final FlowRegistry registry) {
    +        final boolean duplicateName = registryById.values().stream()
    +            .anyMatch(reg -> reg.getName().equals(registry.getName()));
    +
    +        if (duplicateName) {
    +            throw new IllegalStateException("Cannot add Flow Registry because a Flow Registry already exists with the name " + registry.getName());
    --- End diff --
    
    The same name duplication check should be done when a FlowRegistry is updated. Currently, the same name can be specified when updating.


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