maven-resolver-test-util/src/main/java/org/eclipse/aether/internal/test/util/TestVersion.java

package org.eclipse.aether.internal.test.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.eclipse.aether.version.Version;

/**
 * Version ordering by {@link String#compareToIgnoreCase(String)}.
 */
public final class TestVersion
    implements Version
{

    private String version;

    public TestVersion( String version )
    {
        this.version = version == null ? "" : version;
    }

    public int compareTo( Version o )
    {
        return version.compareTo( o.toString() );
    }

    @Override
    public int hashCode()
    {
        final int prime = 31;
        int result = 1;
        result = prime * result + ( ( version == null ) ? 0 : version.hashCode() );
        return result;
    }

    @Override
    public boolean equals( Object obj )
    {
        if ( this == obj )
        {
            return true;
        }
        if ( obj == null )
        {
            return false;
        }
        if ( getClass() != obj.getClass() )
        {
            return false;
        }
        TestVersion other = (TestVersion) obj;
        if ( version == null )
        {
            if ( other.version != null )
            {
                return false;
            }
        }
        else if ( !version.equals( other.version ) )
        {
            return false;
        }
        return true;
    }

    @Override
    public String toString()
    {
        return version;
    }

}