gresockj commented on code in PR #6304: URL: https://github.com/apache/nifi/pull/6304#discussion_r960509908
########## nifi-nar-bundles/nifi-hashicorp-vault-bundle/nifi-hashicorp-vault-parameter-provider/src/main/java/org/apache/nifi/vault/hashicorp/HashiCorpVaultParameterProvider.java: ########## @@ -0,0 +1,168 @@ +/* + * 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.vault.hashicorp; + +import org.apache.nifi.annotation.documentation.CapabilityDescription; +import org.apache.nifi.annotation.documentation.Tags; +import org.apache.nifi.components.ConfigVerificationResult; +import org.apache.nifi.components.PropertyDescriptor; +import org.apache.nifi.components.Validator; +import org.apache.nifi.controller.ConfigurationContext; +import org.apache.nifi.logging.ComponentLog; +import org.apache.nifi.parameter.AbstractParameterProvider; +import org.apache.nifi.parameter.Parameter; +import org.apache.nifi.parameter.ParameterDescriptor; +import org.apache.nifi.parameter.ParameterGroup; +import org.apache.nifi.parameter.ParameterProvider; +import org.apache.nifi.parameter.ParameterProviderInitializationContext; +import org.apache.nifi.parameter.VerifiableParameterProvider; +import org.apache.nifi.processor.util.StandardValidators; + +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collections; +import java.util.List; +import java.util.Map; +import java.util.stream.Collectors; + +@CapabilityDescription("Provides parameters from HashiCorp Vault Key/Value Secrets. Each Secret represents a parameter group, " + + "which will map to a Parameter Context. The keys and values in the Secret map to Parameters.") +@Tags({"hashicorp", "vault", "secret"}) +public class HashiCorpVaultParameterProvider extends AbstractParameterProvider implements ParameterProvider, VerifiableParameterProvider { + + public static final PropertyDescriptor VAULT_CLIENT_SERVICE = new PropertyDescriptor.Builder() + .name("vault-client-service") + .displayName("HashiCorp Vault Client Service") + .description("The service used to interact with HashiCorp Vault") + .identifiesControllerService(HashiCorpVaultClientService.class) + .addValidator(Validator.VALID) + .required(true) + .build(); + public static final PropertyDescriptor KV_PATH = new PropertyDescriptor.Builder() + .name("kv-path") + .displayName("K/V Path") + .description("The HashiCorp Vault path to the K/V Secrets Engine") + .addValidator(StandardValidators.NON_EMPTY_VALIDATOR) + .required(true) + .defaultValue("kv") + .build(); + public static final PropertyDescriptor SECRET_NAME_REGEX = new PropertyDescriptor.Builder() + .name("secret-name-regex") + .displayName("Secret Name Regex") + .description("A Regular Expression indicating which Secrets to include as parameter groups to map to Parameter Contexts by name.") + .addValidator(StandardValidators.REGULAR_EXPRESSION_VALIDATOR) + .required(true) + .defaultValue(".*") + .build(); + + private List<PropertyDescriptor> supportedProperties; + private HashiCorpVaultCommunicationService vaultCommunicationService; + + @Override + protected void init(final ParameterProviderInitializationContext config) { + supportedProperties = Collections.unmodifiableList(Arrays.asList( + VAULT_CLIENT_SERVICE, + KV_PATH, + SECRET_NAME_REGEX)); + } + + @Override + protected List<PropertyDescriptor> getSupportedPropertyDescriptors() { + return supportedProperties; + } + + @Override + public List<ParameterGroup> fetchParameters(final ConfigurationContext context) { + if (vaultCommunicationService == null) { + vaultCommunicationService = getVaultCommunicationService(context); + } + + final List<ParameterGroup> parameterGroups = getParameterGroups(vaultCommunicationService, context); + return parameterGroups; + } + + private List<ParameterGroup> getParameterGroups(final HashiCorpVaultCommunicationService vaultCommunicationService, + final ConfigurationContext context) { + final String kvPath = context.getProperty(KV_PATH).getValue(); + final String secretIncludeRegex = context.getProperty(SECRET_NAME_REGEX).getValue(); + final List<String> allSecretNames = vaultCommunicationService.listKeyValueSecrets(kvPath); + final List<String> secretNames = allSecretNames.stream() + .filter(name -> name.matches(secretIncludeRegex)) + .collect(Collectors.toList()); + + final List<ParameterGroup> parameterGroups = new ArrayList<>(); + for (final String secretName : secretNames) { + final Map<String, String> keyValues = vaultCommunicationService.readKeyValueSecretMap(kvPath, secretName); + final List<Parameter> parameters = new ArrayList<>(); + keyValues.forEach( (key, value) -> { + final ParameterDescriptor parameterDescriptor = new ParameterDescriptor.Builder().name(key).build(); + parameters.add(new Parameter(parameterDescriptor, value, null, true)); + }); Review Comment: I have been preferring `forEach` on maps, since it is supposed to be more performant than converting the Map into a stream. -- This is an automated message from the Apache Git Service. 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