com.devnexus.ting.web.config.DefaultApplicationContextInitializer.java Source code

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Here is the source code for com.devnexus.ting.web.config.DefaultApplicationContextInitializer.java

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/*
 * Copyright 2002-2014 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
 *
 *      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.devnexus.ting.web.config;

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

import org.cloudfoundry.runtime.env.CloudEnvironment;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContextInitializer;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.io.support.ResourcePropertySource;

import com.devnexus.ting.common.Apphome;
import com.devnexus.ting.common.SpringContextMode;
import com.devnexus.ting.common.SpringProfile;
import com.devnexus.ting.common.SystemInformationUtils;

/**
 *
 * @author Gunnar Hillert
 *
 */
public class DefaultApplicationContextInitializer
        implements ApplicationContextInitializer<ConfigurableApplicationContext> {

    private static final Logger LOGGER = LoggerFactory.getLogger(DefaultApplicationContextInitializer.class);

    @Override
    public void initialize(ConfigurableApplicationContext applicationContext) {

        final CloudEnvironment env = new CloudEnvironment();
        if (env.getInstanceInfo() != null) {
            LOGGER.info("cloud API: " + env.getCloudApiUri());
            applicationContext.getEnvironment().setActiveProfiles("cloud",
                    SpringContextMode.DemoContextConfiguration.getCode());
        } else {
            final String profile = System.getProperty("ting-spring-profile");

            if (profile == null) {
                LOGGER.info("System property 'ting-spring-profile' not set. Setting active profile to '{}'.",
                        SpringContextMode.DemoContextConfiguration.getCode());
                applicationContext.getEnvironment()
                        .setActiveProfiles(SpringContextMode.DemoContextConfiguration.getCode());
            } else {
                applicationContext.getEnvironment().setActiveProfiles(profile);
            }
        }

        final ConfigurableEnvironment environment = applicationContext.getEnvironment();

        if (environment.acceptsProfiles(SpringProfile.STANDALONE)) {
            final String tingHome = environment.getProperty(Apphome.APP_HOME_DIRECTORY);
            final ResourcePropertySource propertySource;
            final String productionPropertySourceLocation = "file:" + tingHome + File.separator
                    + SystemInformationUtils.TING_CONFIG_FILENAME;
            try {
                propertySource = new ResourcePropertySource(productionPropertySourceLocation);
            } catch (IOException e) {
                throw new IllegalStateException(
                        "Unable to get ResourcePropertySource '" + productionPropertySourceLocation + "'", e);
            }
            environment.getPropertySources().addFirst(propertySource);
            LOGGER.info("Properties for standalone mode loaded [" + productionPropertySourceLocation + "]");
        } else {
            final String demoPropertySourceLocation = "classpath:ting-demo.properties";
            final ResourcePropertySource propertySource;
            try {
                propertySource = new ResourcePropertySource(demoPropertySourceLocation);
            } catch (IOException e) {
                throw new IllegalStateException(
                        "Unable to get ResourcePropertySource '" + demoPropertySourceLocation + "'", e);
            }
            environment.getPropertySources().addFirst(propertySource);
            LOGGER.info("Properties for demo mode loaded [" + demoPropertySourceLocation + "]");
        }

        final boolean mailEnabled = environment.getProperty("mail.enabled", Boolean.class, Boolean.FALSE);
        final boolean twitterEnabled = environment.getProperty("twitter.enabled", Boolean.class, Boolean.FALSE);
        final boolean websocketEnabled = environment.getProperty("websocket.enabled", Boolean.class, Boolean.FALSE);

        if (mailEnabled) {
            applicationContext.getEnvironment().addActiveProfile(SpringProfile.MAIL_ENABLED);
        }
        if (twitterEnabled) {
            applicationContext.getEnvironment().addActiveProfile(SpringProfile.TWITTER_ENABLED);
        }
        if (websocketEnabled) {
            applicationContext.getEnvironment().addActiveProfile(SpringProfile.WEBSOCKET_ENABLED);
        }

    }

}