package org.codehaus.plexus.container.initialization;

/*
 * Copyright 2001-2006 Codehaus Foundation.
 *
 * 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.
 */

import org.codehaus.plexus.configuration.PlexusConfiguration;

/**
 * @author Jason van Zyl
 */
public class InitializeSystemPropertiesPhase
    extends AbstractContainerInitializationPhase
{
    public void execute( ContainerInitializationContext context )
        throws ContainerInitializationException
    {
        PlexusConfiguration[] systemProperties =
            context.getContainerXmlConfiguration().getChild( "system-properties" ).getChildren( "property" );

        for (PlexusConfiguration systemProperty : systemProperties) {
            String name = systemProperty.getAttribute("name", null);

            String value = systemProperty.getAttribute("value", null);

            if (name == null) {
                throw new ContainerInitializationException("Missing 'name' attribute in 'property' tag. ");
            }

            if (value == null) {
                throw new ContainerInitializationException("Missing 'value' attribute in 'property' tag. ");
            }

            System.getProperties().setProperty(name, value);
        }
    }
}
