BackwardCompatibleUtil.java

/*
 * Copyright 2015 Red Hat, Inc. and/or its affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * 
 *      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.guvnor.structure.backend.backcompat;

import java.util.ArrayList;
import java.util.List;
import javax.enterprise.context.ApplicationScoped;
import javax.inject.Inject;

import org.guvnor.structure.server.config.ConfigGroup;
import org.guvnor.structure.server.config.ConfigItem;
import org.guvnor.structure.server.config.ConfigurationFactory;

@ApplicationScoped
public class BackwardCompatibleUtil {

    private ConfigurationFactory configurationFactory;

    public BackwardCompatibleUtil() {
    }

    @Inject
    public BackwardCompatibleUtil( ConfigurationFactory configurationFactory ) {
        this.configurationFactory = configurationFactory;
    }

    public ConfigGroup compat( final ConfigGroup configGroup ) {
        if ( configGroup != null ) {
            final ConfigItem<List<String>> roles = configGroup.getConfigItem( "security:roles" );
            if ( roles != null ) {
                configGroup.addConfigItem( configurationFactory.newConfigItem( "security:groups",
                                                                               new ArrayList<String>( roles.getValue() ) ) );
                configGroup.removeConfigItem( "security:roles" );
            }
            final ConfigItem<List<String>> groups = configGroup.getConfigItem( "security:groups" );
            if ( groups == null ) {
                configGroup.addConfigItem( configurationFactory.newConfigItem( "security:groups",
                                                                               new ArrayList<String>() ) );
            }
        }
        return configGroup;
    }
}