org.pentaho.springdm.extender.ApplicationContextCreator.java Source code

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Here is the source code for org.pentaho.springdm.extender.ApplicationContextCreator.java

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/*!
 * Copyright 2010 - 2018 Hitachi Vantara.  All rights reserved.
 *
 * 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 org.pentaho.springdm.extender;

import org.osgi.framework.Bundle;
import org.osgi.framework.BundleContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.osgi.context.DelegatedExecutionOsgiBundleApplicationContext;
import org.springframework.osgi.extender.OsgiApplicationContextCreator;
import org.springframework.osgi.extender.support.ApplicationContextConfiguration;
import org.springframework.osgi.extender.support.scanning.ConfigurationScanner;
import org.springframework.osgi.extender.support.scanning.DefaultConfigurationScanner;
import org.springframework.osgi.util.OsgiStringUtils;
import org.springframework.util.Assert;
import org.springframework.util.ObjectUtils;

/**
 * Created by nbaker on 7/20/16.
 */
public class ApplicationContextCreator implements OsgiApplicationContextCreator {

    private static final Logger log;
    private ConfigurationScanner configurationScanner = new DefaultConfigurationScanner();

    public ApplicationContextCreator() {
    }

    public DelegatedExecutionOsgiBundleApplicationContext createApplicationContext(BundleContext bundleContext)
            throws Exception {
        Bundle bundle = bundleContext.getBundle();
        ApplicationContextConfiguration config = new ApplicationContextConfiguration(bundle,
                this.configurationScanner);
        if (log.isTraceEnabled()) {
            log.trace("Created configuration " + config + " for bundle "
                    + OsgiStringUtils.nullSafeNameAndSymName(bundle));
        }

        if (!config.isSpringPoweredBundle()) {
            return null;
        } else {
            log.info("Discovered configurations " + ObjectUtils.nullSafeToString(config.getConfigurationLocations())
                    + " in bundle [" + OsgiStringUtils.nullSafeNameAndSymName(bundle) + "]");
            PentahoOsgiBundleXmlApplicationContext sdoac = new PentahoOsgiBundleXmlApplicationContext(
                    config.getConfigurationLocations());
            sdoac.setBundleContext(bundleContext);
            sdoac.setPublishContextAsService(config.isPublishContextAsService());

            return sdoac;
        }
    }

    public void setConfigurationScanner(ConfigurationScanner configurationScanner) {
        Assert.notNull(configurationScanner);
        this.configurationScanner = configurationScanner;
    }

    static {
        log = LoggerFactory.getLogger(ApplicationContextCreator.class);
    }
}