src/main/java/org/apache/maven/plugins/war/util/WarUtils.java

package org.apache.maven.plugins.war.util;

/*
 * 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 org.apache.maven.artifact.Artifact;
import org.apache.maven.model.Dependency;
import org.apache.maven.project.MavenProject;
import org.codehaus.plexus.util.StringUtils;

/**
 * @author Stephane Nicoll
 * @version $Id$
 */
public class WarUtils
{

    /**
     * @param project {@link MavenProject}
     * @param dependency {@link Dependency}
     * @return {@link Artifact}
     */
    public static Artifact getArtifact( MavenProject project, Dependency dependency )
    {
        for ( Object o : project.getArtifacts() )
        {
            Artifact artifact = (Artifact) o;
            if ( artifact.getGroupId().equals( dependency.getGroupId() )
                && artifact.getArtifactId().equals( dependency.getArtifactId() )
                && artifact.getType().equals( dependency.getType() ) )
            {
                if ( artifact.getClassifier() == null && dependency.getClassifier() == null )
                {
                    return artifact;
                }
                else if ( dependency.getClassifier() != null
                    && dependency.getClassifier().equals( artifact.getClassifier() ) )
                {
                    return artifact;
                }
            }
        }
        return null;
    }

    /**
     * @param artifact {@link Artifact}
     * @param dependency {@link Dependency}
     * @return is related or not.
     */
    public static boolean isRelated( Artifact artifact, Dependency dependency )
    {
        if ( artifact == null || dependency == null )
        {
            return false;
        }

        if ( !StringUtils.equals( artifact.getGroupId(), dependency.getGroupId() ) )
        {
            return false;
        }
        if ( !StringUtils.equals( artifact.getArtifactId(), dependency.getArtifactId() ) )
        {
            return false;
        }
        if ( artifact.getVersion() != null ? !artifact.getVersion().equals( dependency.getVersion() )
                        : dependency.getVersion() != null )
        {
            return false;
        }
        if ( artifact.getType() != null ? !artifact.getType().equals( dependency.getType() )
                        : dependency.getType() != null )
        {
            return false;
        }
        if ( artifact.getClassifier() != null ? !artifact.getClassifier().equals( dependency.getClassifier() )
                        : dependency.getClassifier() != null )
        {
            return false;
        }
        if ( artifact.getScope() != null ? !artifact.getScope().equals( dependency.getScope() )
                        : dependency.getScope() != null )
        {
            return false;
        }
        if ( artifact.isOptional() != dependency.isOptional() )
        {
            return false;
        }

        return true;
    }

    /**
     * @param first {@link Dependency}
     * @param second {@link Dependency}
     * @return are the dependencies equal.
     */
    public static boolean dependencyEquals( Dependency first, Dependency second )
    {
        if ( first == second )
        {
            return true;
        }

        if ( first.isOptional() != second.isOptional() )
        {
            return false;
        }
        if ( !StringUtils.equals( first.getArtifactId(), second.getArtifactId() ) )
        {
            return false;
        }
        if ( first.getClassifier() != null ? !first.getClassifier().equals( second.getClassifier() )
                        : second.getClassifier() != null )
        {
            return false;
        }
        if ( first.getExclusions() != null ? !first.getExclusions().equals( second.getExclusions() )
                        : second.getExclusions() != null )
        {
            return false;
        }
        if ( !StringUtils.equals( first.getGroupId(), second.getGroupId() ) )
        {
            return false;
        }
        if ( first.getScope() != null ? !first.getScope().equals( second.getScope() ) : second.getScope() != null )
        {
            return false;
        }
        if ( first.getSystemPath() != null ? !first.getSystemPath().equals( second.getSystemPath() )
                        : second.getSystemPath() != null )
        {
            return false;
        }
        if ( first.getType() != null ? !first.getType().equals( second.getType() ) : second.getType() != null )
        {
            return false;
        }
        if ( first.getVersion() != null ? !first.getVersion().equals( second.getVersion() )
                        : second.getVersion() != null )
        {
            return false;
        }
        return true;
    }

}