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AbstractArtifactResolutionException.java

package org.apache.maven.artifact.resolver;

/*
 * 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.artifact.repository.ArtifactRepository;

import java.util.HashSet;
import java.util.Iterator;
import java.util.List;

/**
 * Base class for artifact resolution exceptions.
 *
 * @author <a href="mailto:brett@apache.org">Brett Porter</a>
 * @version $Id: AbstractArtifactResolutionException.java 585333 2007-10-17 02:36:31Z brianf $
 */
00035 public class AbstractArtifactResolutionException
    extends Exception
{
    private String groupId;

    private String artifactId;

    private String version;

    private String type;

    private String classifier;

    private List remoteRepositories;

    private final String originalMessage;

    private final String path;

    static final String LS = System.getProperty( "line.separator" );

    protected AbstractArtifactResolutionException( String message, String groupId, String artifactId, String version,
                                                   String type, String classifier, List remoteRepositories, List path )
    {
        super( constructMessageBase( message, groupId, artifactId, version, type, remoteRepositories, path ) );

        this.originalMessage = message;
        this.groupId = groupId;
        this.artifactId = artifactId;
        this.type = type;
        this.classifier = classifier;
        this.version = version;
        this.remoteRepositories = remoteRepositories;
        this.path = constructArtifactPath( path, "" );
    }

    protected AbstractArtifactResolutionException( String message, String groupId, String artifactId, String version,
                                                   String type, String classifier, List remoteRepositories, List path, Throwable t )
    {
        super( constructMessageBase( message, groupId, artifactId, version, type, remoteRepositories, path ), t );

        this.originalMessage = message;
        this.groupId = groupId;
        this.artifactId = artifactId;
        this.type = type;
        this.classifier = classifier;
        this.version = version;
        this.remoteRepositories = remoteRepositories;
        this.path = constructArtifactPath( path, "" );
    }

    protected AbstractArtifactResolutionException( String message, Artifact artifact )
    {
        this( message, artifact, null );
    }

    protected AbstractArtifactResolutionException( String message, Artifact artifact, List remoteRepositories )
    {
        this( message, artifact.getGroupId(), artifact.getArtifactId(), artifact.getVersion(), artifact.getType(),
              artifact.getClassifier(),remoteRepositories, artifact.getDependencyTrail() );
    }

    protected AbstractArtifactResolutionException( String message, Artifact artifact, List remoteRepositories,
                                                   Throwable t )
    {
        this( message, artifact.getGroupId(), artifact.getArtifactId(), artifact.getVersion(), artifact.getType(),
              artifact.getClassifier(),remoteRepositories, artifact.getDependencyTrail(), t );
    }

    public String getGroupId()
    {
        return groupId;
    }

    public String getArtifactId()
    {
        return artifactId;
    }

    public String getVersion()
    {
        return version;
    }

    public String getType()
    {
        return type;
    }

    /**
     * @return the classifier
     */
00127     public String getClassifier()
    {
        return this.classifier;
    }

    /**
     * @return the path
     */
00135     public String getPath()
    {
        return this.path;
    }

    public List getRemoteRepositories()
    {
        return remoteRepositories;
    }

    public String getOriginalMessage()
    {
        return originalMessage;
    }

    protected static String constructArtifactPath( List path, String indentation )
    {
        StringBuffer sb = new StringBuffer();

        if ( path != null )
        {
            sb.append( LS );
            sb.append( indentation );
            sb.append( "Path to dependency: " );
            sb.append( LS );
            int num = 1;
            for ( Iterator i = path.iterator(); i.hasNext(); num++ )
            {
                sb.append( indentation );
                sb.append( "\t" );
                sb.append( num );
                sb.append( ") " );
                sb.append( i.next() );
                sb.append( LS );
            }
        }

        return sb.toString();
    }

    private static String constructMessageBase( String message, String groupId, String artifactId, String version,
                                                String type, List remoteRepositories, List path )
    {
        StringBuffer sb = new StringBuffer();

        sb.append( message );
        sb.append( LS );
        sb.append( "  " + groupId + ":" + artifactId + ":" + type + ":" + version );
        sb.append( LS );
        if ( remoteRepositories != null && !remoteRepositories.isEmpty() )
        {
            sb.append( LS );
            sb.append( "from the specified remote repositories:" );
            sb.append( LS + "  " );

            for ( Iterator i = new HashSet( remoteRepositories ).iterator(); i.hasNext(); )
            {
                ArtifactRepository remoteRepository = (ArtifactRepository) i.next();

                sb.append( remoteRepository.getId() );
                sb.append( " (" );
                sb.append( remoteRepository.getUrl() );
                sb.append( ")" );
                if ( i.hasNext() )
                {
                    sb.append( ",\n  " );
                }
            }
        }

        sb.append( constructArtifactPath( path, "" ) );
        sb.append( LS );
        return sb.toString();
    }

    protected static String constructMissingArtifactMessage( String message, String indentation, String groupId, String artifactId, String version,
                                              String type, String classifier, String downloadUrl, List path )
    {
        StringBuffer sb = new StringBuffer( message );

        if ( !"pom".equals( type ) )
        {
            if ( downloadUrl != null )
            {
                sb.append( LS );
                sb.append( LS );
                sb.append( indentation );
                sb.append( "Try downloading the file manually from: " );
                sb.append( LS );
                sb.append( indentation );
                sb.append( "    " );
                sb.append( downloadUrl );
            }
            else
            {
                sb.append( LS );
                sb.append( LS );
                sb.append( indentation );
                sb.append( "Try downloading the file manually from the project website." );
            }

            sb.append( LS );
            sb.append( LS );
            sb.append( indentation );
            sb.append( "Then, install it using the command: " );
            sb.append( LS );
            sb.append( indentation );
            sb.append( "    mvn install:install-file -DgroupId=" );
            sb.append( groupId );
            sb.append( " -DartifactId=" );
            sb.append( artifactId );
            sb.append( " -Dversion=" );
            sb.append( version );

            //insert classifier only if it was used in the artifact
            if (classifier !=null && !classifier.equals( "" ))
            {
                sb.append( " -Dclassifier=" );
                sb.append( classifier );
            }
            sb.append( " -Dpackaging=" );
            sb.append( type );
            sb.append( " -Dfile=/path/to/file" );
            sb.append( LS );

            // If people want to deploy it

            sb.append( LS );
            sb.append( indentation );
            sb.append( "Alternatively, if you host your own repository you can deploy the file there: " );
            sb.append( LS );
            sb.append( indentation );
            sb.append( "    mvn deploy:deploy-file -DgroupId=" );
            sb.append( groupId );
            sb.append( " -DartifactId=" );
            sb.append( artifactId );
            sb.append( " -Dversion=" );
            sb.append( version );

            //insert classifier only if it was used in the artifact
            if (classifier !=null && !classifier.equals( "" ))
            {
                sb.append( " -Dclassifier=" );
                sb.append( classifier );
            }
            sb.append( " -Dpackaging=" );
            sb.append( type );
            sb.append( " -Dfile=/path/to/file" );
            sb.append( " -Durl=[url] -DrepositoryId=[id]" );
            sb.append( LS );

        }

        sb.append( constructArtifactPath( path, indentation ) );
        sb.append( LS );

        return sb.toString();
    }

    public String getArtifactPath()
    {
        return path;
    }
}

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