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/**
 * Copyright 2010-2014 The Kuali Foundation
 *
 * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
 *
 * 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.kuali.common.util.properties.spring;

import java.util.Properties;

import org.kuali.common.util.PropertyUtils;
import org.kuali.common.util.enc.EncContext;
import org.kuali.common.util.project.model.Project;
import org.kuali.common.util.project.spring.AutowiredProjectConfig;
import org.kuali.common.util.properties.DefaultPropertiesService;
import org.kuali.common.util.properties.PropertiesService;
import org.kuali.common.util.property.ImmutableProperties;
import org.kuali.common.util.property.processor.JasyptDecryptingProcessor;
import org.kuali.common.util.property.processor.OverridingProcessor;
import org.kuali.common.util.property.processor.ProcessorsProcessor;
import org.kuali.common.util.property.processor.PropertyProcessor;
import org.kuali.common.util.property.processor.ResolvingProcessor;
import org.kuali.common.util.spring.env.BasicEnvironmentService;
import org.kuali.common.util.spring.env.EnvironmentService;
import org.kuali.common.util.spring.service.SpringServiceConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;

/**
 * @deprecated
 */
@Deprecated
@Configuration
@Import({ SpringServiceConfig.class, AutowiredProjectConfig.class })
public class DefaultPropertiesServiceConfig implements PropertiesServiceConfig {

	@Autowired
	Project project;

	@Autowired
	EnvironmentService env;

	@Override
	@Bean
	public PropertiesService propertiesService() {
		Properties overrides = getOverrides(project);
		PropertyProcessor processor = getPostProcessor(overrides);
		return new DefaultPropertiesService(overrides, processor);
	}

	private Properties getOverrides(Project project) {
		// Get a reference to system + environment properties
		Properties global = PropertyUtils.getGlobalProperties();

		// Setup a properties object where system properties "win" over project properties
		return ImmutableProperties.copyOf(PropertyUtils.combine(project.getProperties(), global));
	}

	private PropertyProcessor getPostProcessor(Properties overrides) {
		EnvironmentService env = new BasicEnvironmentService(overrides);
		EncContext context = EncContext.builder(env).removeSystemProperties(false).build();
		PropertyProcessor override = new OverridingProcessor(overrides);
		PropertyProcessor decrypt = new JasyptDecryptingProcessor(context.getTextEncryptor());
		PropertyProcessor resolver = new ResolvingProcessor();
		return new ProcessorsProcessor(override, decrypt, resolver);
	}

}