maven-core/src/main/java/org/apache/maven/plugin/version/PluginVersionResolutionException.java

package org.apache.maven.plugin.version;

/*
 * 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 java.util.List;

import org.eclipse.aether.repository.LocalRepository;
import org.eclipse.aether.repository.RemoteRepository;

/**
 * PluginVersionResolutionException
 */
public class PluginVersionResolutionException
    extends Exception
{
    private final String groupId;

    private final String artifactId;

    private final String baseMessage;

    public PluginVersionResolutionException( String groupId, String artifactId, String baseMessage, Throwable cause )
    {
        super( "Error resolving version for plugin '" + groupId + ":" + artifactId + "': " + baseMessage, cause );

        this.groupId = groupId;
        this.artifactId = artifactId;
        this.baseMessage = baseMessage;
    }

    public PluginVersionResolutionException( String groupId, String artifactId, String baseMessage )
    {
        super( "Error resolving version for plugin '" + groupId + ":" + artifactId + "': " + baseMessage );

        this.groupId = groupId;
        this.artifactId = artifactId;
        this.baseMessage = baseMessage;
    }

    public PluginVersionResolutionException( String groupId, String artifactId, LocalRepository localRepository,
                                             List<RemoteRepository> remoteRepositories, String baseMessage )
    {
        super( "Error resolving version for plugin '" + groupId + ":" + artifactId + "' from the repositories "
            + format( localRepository, remoteRepositories ) + ": " + baseMessage );

        this.groupId = groupId;
        this.artifactId = artifactId;
        this.baseMessage = baseMessage;
    }

    public String getGroupId()
    {
        return groupId;
    }

    public String getArtifactId()
    {
        return artifactId;
    }

    public String getBaseMessage()
    {
        return baseMessage;
    }

    private static String format( LocalRepository localRepository, List<RemoteRepository> remoteRepositories )
    {
        StringBuilder repos = new StringBuilder( "[" );

        if ( localRepository != null )
        {
            repos.append( localRepository.getId() ).append( " (" ).append( localRepository.getBasedir() ).append( ")" );
        }

        if ( remoteRepositories != null && !remoteRepositories.isEmpty() )
        {
            for ( RemoteRepository repository : remoteRepositories )
            {
                repos.append( ", " );

                if ( repository != null )
                {
                    repos.append( repository.getId() ).append( " (" ).append( repository.getUrl() ).append( ")" );
                }
            }
        }

        repos.append( "]" );

        return repos.toString();
    }

}