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/*
 * Copyright 2017-2020 original 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.micronaut.management.endpoint.info.source;

import io.micronaut.context.annotation.Requires;
import io.micronaut.context.annotation.Value;
import io.micronaut.context.env.PropertySource;
import io.micronaut.core.async.SupplierUtil;
import io.micronaut.core.io.ResourceResolver;
import io.micronaut.core.util.StringUtils;
import io.micronaut.management.endpoint.info.InfoEndpoint;
import io.reactivex.Flowable;
import org.reactivestreams.Publisher;

import javax.inject.Singleton;
import java.util.Optional;
import java.util.function.Supplier;

/**
 * 

An {@link io.micronaut.management.endpoint.info.InfoSource} that retrieves info from Git properties.

* * @author Zachary Klein * @since 1.0 */ @Singleton @Requires(beans = InfoEndpoint.class) @Requires(property = "endpoints.info.git.enabled", notEquals = StringUtils.FALSE) public class GitInfoSource implements PropertiesInfoSource { private static final String EXTENSION = ".properties"; private static final String PREFIX = "classpath:"; private final String gitPropertiesPath; private final ResourceResolver resourceResolver; private final Supplier> supplier; /** * @param resourceResolver A {@link ResourceResolver} * @param gitPropertiesPath The path for the git properties file */ public GitInfoSource( ResourceResolver resourceResolver, @Value("${endpoints.info.git.location:git.properties}") String gitPropertiesPath) { this.resourceResolver = resourceResolver; this.supplier = SupplierUtil.memoized(this::retrieveGitInfo); this.gitPropertiesPath = gitPropertiesPath; } @Override public Publisher getSource() { Optional propertySource = supplier.get(); return propertySource.map(Flowable::just).orElse(Flowable.empty()); } private Optional retrieveGitInfo() { return retrievePropertiesPropertySource(gitPropertiesPath, PREFIX, EXTENSION, resourceResolver); } }




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