com.netflix.spinnaker.halyard.core.GlobalApplicationOptions.java Source code

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Here is the source code for com.netflix.spinnaker.halyard.core.GlobalApplicationOptions.java

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/*
 * Copyright 2017 Google, Inc.
 *
 * 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 com.netflix.spinnaker.halyard.core;

import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import lombok.Data;
import org.apache.commons.io.FileUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.PropertySource;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.SafeConstructor;

import java.io.File;
import java.io.IOException;

/**
 * This is the collection of general, top-level flags that come from the application configuration for halyard.
 * This class is both @AutoWired'able and can act as a singleton via the getInstance() function. This is so the same
 * class may be reused between halyard's CLI and daemon.
 */
@Data
@Configuration
@PropertySource(value = "file:" + GlobalApplicationOptions.CONFIG_PATH, ignoreResourceNotFound = true)
public class GlobalApplicationOptions {

    static final String CONFIG_PATH = "/opt/spinnaker/hal.properties";

    @Value("${useRemoteDaemon:false}")
    private boolean useRemoteDaemon = false;

    public boolean isUseRemoteDaemon() {
        return options.useRemoteDaemon;
    }

    public static GlobalApplicationOptions getInstance() {
        if (GlobalApplicationOptions.options == null) {
            Yaml yamlParser = new Yaml(new SafeConstructor());
            ObjectMapper objectMapper = new ObjectMapper();

            objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
            objectMapper.configure(DeserializationFeature.FAIL_ON_NULL_CREATOR_PROPERTIES, false);
            objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);

            try {
                GlobalApplicationOptions.options = objectMapper.convertValue(
                        yamlParser.load(FileUtils.openInputStream(new File(CONFIG_PATH))),
                        GlobalApplicationOptions.class);
            } catch (IOException e) {
                GlobalApplicationOptions.options = new GlobalApplicationOptions();
            }
        }
        return GlobalApplicationOptions.options;
    }

    private static GlobalApplicationOptions options = null;
}