package org.apache.maven.model.building;

/*
 * 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.
 */

/**
 * Builds the effective model from a POM.
 * 
 * @author Benjamin Bentmann
 */
public interface ModelBuilder
{

    /**
     * Builds the effective model of the specified POM.
     * 
     * @param request The model building request that holds the parameters, must not be {@code null}.
     * @return The result of the model building, never {@code null}.
     * @throws ModelBuildingException If the effective model could not be built.
     */
    ModelBuildingResult build( ModelBuildingRequest request )
        throws ModelBuildingException;

    /**
     * Builds the effective model by completing the specified interim result which was produced by a previous call to
     * {@link #build(ModelBuildingRequest)} with {@link ModelBuildingRequest#isTwoPhaseBuilding()} being {@code true}.
     * The model building request passed to this method must be the same as the one used for the first phase of the
     * model building.
     * 
     * @param request The model building request that holds the parameters, must not be {@code null}.
     * @param result The interim result of the first phase of model building, must not be {@code null}.
     * @return The result of the model building, never {@code null}.
     * @throws ModelBuildingException If the effective model could not be built.
     */
    ModelBuildingResult build( ModelBuildingRequest request, ModelBuildingResult result )
        throws ModelBuildingException;

}
