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/*
* ====================================================================
* Project: openMDX/Core, http://www.openmdx.org/
* Description: ConfigurationProviders
* Owner: OMEX AG, Switzerland, http://www.omex.ch
* ====================================================================
*
* This software is published under the BSD license as listed below.
*
* Copyright (c) 2020, OMEX AG, Switzerland
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of the openMDX team nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* ------------------
*
* This product includes software developed by other organizations as
* listed in the NOTICE file.
*/
package org.openmdx.kernel.configuration;
import java.io.IOException;
import java.util.Collections;
import java.util.Map;
import java.util.Optional;
import java.util.Properties;
import javax.jdo.Constants;
import javax.jdo.PersistenceManagerFactory;
import org.openmdx.kernel.configuration.cci.Configuration;
import org.openmdx.kernel.configuration.cci.ConfigurationProvider;
import org.openmdx.kernel.configuration.spi.ConfigurationFactory;
import org.openmdx.kernel.loading.Resources;
import org.w3c.spi.PrimitiveTypeParsers;
/**
* Configuration Providers
*/
public class Configurations {
/**
* Constructor
*/
private Configurations() {
// Avoid instantiation
}
/**
* Provide a data provider configuration with {@code '/'} as
* key segment separator.
*
* @param properties the properties the configuration is based on.
*
* @return a configuration provider for the given properties
*/
public static ConfigurationProvider getDataproviderConfigurationProvider(
Properties properties
) {
return ConfigurationFactory.createConfigurationProvider(
PrimitiveTypeParsers.getStandardParser(),
'/',
properties
);
}
/**
* Provide a {@link PersistenceManagerFactory} configuration with {@code '.'} as
* key segment separator.
*
* @param properties the properties the configuration is based on.
*
* @return a configuration provider for the given properties
*
* @throws RuntimeException in case of load failures
*/
public static ConfigurationProvider getPersistenceManagerFactoryConfigurationProvider(
Map overrides,
Map configuration,
Map defaults
){
final Map[] maps = {
defaults,
configuration,
getAmendments(configuration),
overrides
};
return ConfigurationFactory.createConfigurationProvider(
PrimitiveTypeParsers.getStandardParser(),
'.',
maps
);
}
/**
* Get the configuration amendments from one or more optional property files
* specified by the {@link Constants.PROPERTY_NAME} which are located in the
* {@code META-INF} directory
*
* @param configuration the persistence manager factory configuration
*
* @return the amendments from the property files
*
* @throws RuntimeException in case of load failures
*/
private static Map getAmendments(
Map configuration
){
final Optional name = getName(configuration);
return name.isPresent() ?
loadProperties(name.get() + ".properties") :
Collections.emptyMap();
}
/**
* Load the properties from the {@code META-INF} resources
*
* @param resourceName the resource name relative to the {@code META-INF} directory
*
* @return the properties
*
* @throws RuntimeException in case of load failures
*/
private static Properties loadProperties(
final String resourceName
){
final String uri = Resources.toMetaInfXRI(resourceName);
try {
return PropertiesProvider.getProperties(uri);
} catch (IOException exception) {
throw new RuntimeException(
"Unable to load properties from " + uri, exception);
}
}
/**
* Determine the JDO persistence manager factory name
*
* @param configuration the configuration
*
* @return the persistence manager factory name
*
* @throws ClassCastException if the key {@link Constants.PROPERTY_NAME} does
* not belong to a {@link String} value
*/
private static Optional getName(
Map configuration
){
return configuration instanceof Properties ?
getName((Properties)configuration) :
Optional.ofNullable((String)configuration.get(Constants.PROPERTY_NAME));
}
/**
* Determine the JDO persistence manager factory name
*
* @param configuration the configuration
*
* @return the persistence manager factory name
*/
private static Optional getName(
Properties configuration
){
return Optional.ofNullable(
configuration.getProperty(
Constants.PROPERTY_NAME
)
);
}
/**
* Provide a {@link PersistenceManagerFactory} configuration with {@code '.'} as
* key segment separator.
*
* @param properties the properties the configuration is based on.
*
* @return a configuration provider for the given properties
*/
public static Configuration getConnectionDriverConfiguration(
Map overrides,
Map configuration,
String connectionDriverSection
) {
return ConfigurationFactory.createConfigurationProvider(
PrimitiveTypeParsers.getStandardParser(),
'.',
configuration, overrides
).getSection(
connectionDriverSection
);
}
public static Configuration getBeanConfiguration(
Map properties
){
return ConfigurationFactory.createConfiguration(
PrimitiveTypeParsers.getExtendedParser(),
properties
);
}
}
