Package org.apache.maven.continuum.web.interceptor

Source Code of org.apache.maven.continuum.web.interceptor.ForceContinuumConfigurationInterceptor

package org.apache.maven.continuum.web.interceptor;

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you 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 com.opensymphony.xwork.ActionInvocation;
import com.opensymphony.xwork.interceptor.Interceptor;
import org.apache.maven.continuum.Continuum;
import org.apache.maven.continuum.configuration.ConfigurationService;
import org.codehaus.plexus.logging.AbstractLogEnabled;

/**
* ForceContinuumConfigurationInterceptor:
*
* @author: Jesse McConnell <jmcconnell@apache.org>
* @version: $ID:$
* @plexus.component role="com.opensymphony.xwork.interceptor.Interceptor"
* role-hint="forceContinuumConfigurationInterceptor"
*/
public class ForceContinuumConfigurationInterceptor
    extends AbstractLogEnabled
    implements Interceptor
{
    private static boolean checked = false;

    /**
     * @plexus.requirement
     */
    private Continuum continuum;

    public void destroy()
    {
        // no-op
    }

    public void init()
    {

    }

    /**
     * 1) check to see if this interceptor has been successfully executed
     * 2) check if the configuration service is initialized
     * 3) load the configuration and see if that is initialized (addresses restore on empty db)
     * 4) force the configuration screen
     *
     * @param invocation
     * @return
     * @throws Exception
     */
    public String intercept( ActionInvocation invocation )
        throws Exception
    {
        if ( checked )
        {
            return invocation.invoke();
        }

        ConfigurationService configuration = continuum.getConfiguration();

        if ( configuration.isInitialized() )
        {
            checked = true;
            return invocation.invoke();
        }

        configuration.load();

        if ( configuration.isInitialized() )
        {
            checked = true;
            return invocation.invoke();
        }
        else
        {
            return "continuum-configuration-required";
        }

    }
}
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