4. Introduction to ReactiveCredHubOperations (4. Introduction to ReactiveCredHubOperations) _ Spring CredHubversion 3.0.1-SNAPSHOT,中文文档(官方文档中文翻译)|Spring 教程 —

4. Introduction to ReactiveCredHubOperations

The interface org.springframework.credhub.core.ReactiveCredHubOperations and the implementation org.springframework.credhub.core.ReactiveCredHubTemplate are the central classes in Spring CredHub reactive support. ReactiveCredHubOperations provides access to additional operations interfaces that model the full CredHub API:spring-doc.cn

/**
 * Get the operations for saving, retrieving, and deleting credentials.
 */
ReactiveCredHubCredentialOperations credentials();

/**
 * Get the operations for adding, retrieving, and deleting credential permissions.
 */
ReactiveCredHubPermissionOperations permissions();

/**
 * Get the operations for adding, retrieving, and deleting credential permissions.
 */
ReactiveCredHubPermissionV2Operations permissionsV2();

/**
 * Get the operations for retrieving, regenerating, and updating certificates.
 */
ReactiveCredHubCertificateOperations certificates();

/**
 * Get the operations for interpolating service binding credentials.
 */
ReactiveCredHubInterpolationOperations interpolation();

/**
 * Get the operations for retrieving CredHub server information.
 */
ReactiveCredHubInfoOperations info();

4.1. Mapping to CredHub API

Each method of the Reactive…Operations interfaces maps directly to one endpoint of the CredHub HTTP API. The following table shows the mapping between the CredHub API and the appropriate Spring CredHub Reactive…Operations interface.spring-doc.cn

4.2. ReactiveCredHubOperations Auto-configuration

A ReactiveCredHubOperations Spring bean is created using Spring Boot auto-configuration when application properties are properly configured and the Spring WebFlux library is on the classpath. Application classes can autowire an instance of this bean to interact with a CredHub server.spring-doc.cn

/*
 * Copyright 2016-2020 the original author or 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
 *
 *      https://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 com.example.credhub;

import reactor.core.publisher.Mono;

import org.springframework.credhub.core.ReactiveCredHubOperations;
import org.springframework.credhub.support.SimpleCredentialName;
import org.springframework.credhub.support.password.PasswordCredential;
import org.springframework.credhub.support.password.PasswordParameters;
import org.springframework.credhub.support.password.PasswordParametersRequest;
import org.springframework.stereotype.Component;

@Component
public class ReactiveCredHubService {

	private final ReactiveCredHubOperations credHubOperations;

	private final SimpleCredentialName credentialName;

	public ReactiveCredHubService(ReactiveCredHubOperations credHubOperations) {
		this.credHubOperations = credHubOperations;

		this.credentialName = new SimpleCredentialName("example", "password");
	}

	public Mono<String> generatePassword() {
		PasswordParameters parameters = PasswordParameters.builder().length(12).excludeLower(false).excludeUpper(false)
				.excludeNumber(false).includeSpecial(true).build();

		return this.credHubOperations.credentials()
				.generate(PasswordParametersRequest.builder().name(this.credentialName).parameters(parameters).build(),
						PasswordCredential.class)
				.map((password) -> password.getValue().getPassword());
	}

	public Mono<String> getPassword() {
		return this.credHubOperations.credentials().getByName(this.credentialName, PasswordCredential.class)
				.map((password) -> password.getValue().getPassword());
	}

}