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/*
 * Copyright 2011-2022 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 grails.web.servlet.context.support;

import java.util.Set;

import org.springframework.core.env.PropertiesPropertySource;
import org.springframework.core.env.PropertySource;
import org.springframework.util.StringUtils;
import org.springframework.web.context.support.StandardServletEnvironment;

import grails.core.GrailsApplication;
import grails.util.Environment;

/**
 * Bridges Grails' existing environment API with the new Spring 3.1 environment profiles API.
 *
 * @author Graeme Rocher
 * @since 2.0
 */
public class GrailsEnvironment extends StandardServletEnvironment {

    GrailsApplication grailsApplication;

    public GrailsEnvironment(GrailsApplication grailsApplication) {
        this.grailsApplication = grailsApplication;
        getPropertySources().addFirst(new GrailsConfigPropertySource());
        getPropertySources().addFirst(new PropertiesPropertySource("systemProperties", System.getProperties()));
    }

    @Override
    protected Set doGetActiveProfiles() {
        Set activeProfiles = super.doGetActiveProfiles();
        activeProfiles.add(Environment.getCurrent().getName());
        return activeProfiles;
    }

    protected class GrailsConfigPropertySource extends PropertySource {

        public GrailsConfigPropertySource() {
            super(StringUtils.hasText(GrailsEnvironment.this.grailsApplication.getMetadata().getApplicationName())
                    ? GrailsEnvironment.this.grailsApplication.getMetadata().getApplicationName()
                    : "grailsApplication", GrailsEnvironment.this.grailsApplication);
        }

        @Override
        public Object getProperty(String key) {
            return GrailsEnvironment.this.grailsApplication.getConfig().getProperty(key, Object.class);
        }

    }

}