    001/*
    002 * Copyright (c) 2007-2016 Concurrent, Inc. All Rights Reserved.
    003 *
    004 * Project and contact information: http://www.cascading.org/
    005 *
    006 * This file is part of the Cascading project.
    007 *
    008 * Licensed under the Apache License, Version 2.0 (the "License");
    009 * you may not use this file except in compliance with the License.
    010 * You may obtain a copy of the License at
    011 *
    012 *     http://www.apache.org/licenses/LICENSE-2.0
    013 *
    014 * Unless required by applicable law or agreed to in writing, software
    015 * distributed under the License is distributed on an "AS IS" BASIS,
    016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017 * See the License for the specific language governing permissions and
    018 * limitations under the License.
    019 */
    020
    021package cascading.flow.planner;
    022
    023import java.io.Serializable;
    024
    025/**
    026 *
    027 */
    028public class PlatformInfo implements Serializable, Comparable<PlatformInfo>
    029  {
    030  public static final PlatformInfo NULL = new PlatformInfo( null, null, null );
    031
    032  public final String name;
    033  public final String vendor;
    034  public final String version;
    035
    036  public PlatformInfo( String name, String vendor, String version )
    037    {
    038    this.name = name;
    039    this.vendor = vendor;
    040    this.version = version;
    041    }
    042
    043  @Override
    044  public int compareTo( PlatformInfo other )
    045    {
    046    if( other == null )
    047      return 1;
    048
    049    return this.toString().compareTo( other.toString() );
    050    }
    051
    052  @Override
    053  public boolean equals( Object object )
    054    {
    055    if( this == object )
    056      return true;
    057    if( object == null || getClass() != object.getClass() )
    058      return false;
    059
    060    PlatformInfo that = (PlatformInfo) object;
    061
    062    if( name != null ? !name.equals( that.name ) : that.name != null )
    063      return false;
    064    if( vendor != null ? !vendor.equals( that.vendor ) : that.vendor != null )
    065      return false;
    066    if( version != null ? !version.equals( that.version ) : that.version != null )
    067      return false;
    068
    069    return true;
    070    }
    071
    072  @Override
    073  public int hashCode()
    074    {
    075    int result = name != null ? name.hashCode() : 0;
    076    result = 31 * result + ( vendor != null ? vendor.hashCode() : 0 );
    077    result = 31 * result + ( version != null ? version.hashCode() : 0 );
    078    return result;
    079    }
    080
    081  @Override
    082  public String toString()
    083    {
    084    final StringBuilder sb = new StringBuilder();
    085
    086    if( name == null )
    087      sb.append( "UNKNOWN" ).append( ':' );
    088    else
    089      sb.append( name ).append( ':' );
    090
    091    if( version != null )
    092      sb.append( version ).append( ':' );
    093
    094    if( vendor != null )
    095      sb.append( vendor );
    096
    097    return sb.toString();
    098    }
    099  }