Applied-Energistics-2-tiler.../src/main/java/appeng/services/version/BaseVersion.java
yueh 47592bcbcb Fixes #1932: Better VersionChecker exception handling
ModVersionFetcher will now return a MissingVersion in case of an exception
instead of letting it propagate upwards.

Also added a generic try/catch to the VersionChecker itself, just in case
any unchecked exception might be triggered inside the thread and at least
not logged correctly.
2015-10-12 14:07:36 +02:00

128 lines
2.8 KiB
Java

/*
* This file is part of Applied Energistics 2.
* Copyright (c) 2013 - 2015, AlgorithmX2, All rights reserved.
*
* Applied Energistics 2 is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Applied Energistics 2 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
*/
package appeng.services.version;
import javax.annotation.Nonnegative;
import javax.annotation.Nonnull;
import com.google.common.base.Preconditions;
/**
* Base version of {@link Version}.
*
* Provides a unified way to test for equality and print a formatted string
*/
public abstract class BaseVersion implements Version
{
@Nonnegative
private final int revision;
@Nonnull
private final Channel channel;
@Nonnegative
private final int build;
/**
* @param revision revision in natural number
* @param channel channel
* @param build build in natural number
*
* @throws AssertionError if assertion are enabled and revision or build are not natural numbers
*/
public BaseVersion( @Nonnegative final int revision, @Nonnull final Channel channel, @Nonnegative final int build )
{
Preconditions.checkArgument( revision >= 0 );
Preconditions.checkNotNull( channel );
Preconditions.checkArgument( build >= 0 );
this.revision = revision;
this.channel = channel;
this.build = build;
}
@Override
public final int revision()
{
return this.revision;
}
@Override
public final Channel channel()
{
return this.channel;
}
@Override
public final int build()
{
return this.build;
}
@Override
public String formatted()
{
return "rv" + this.revision + '-' + this.channel.name().toLowerCase() + '-' + this.build;
}
@Override
public final int hashCode()
{
int result = this.revision;
result = 31 * result + this.channel.hashCode();
result = 31 * result + this.build;
return result;
}
@Override
public final boolean equals( final Object o )
{
if( this == o )
{
return true;
}
if( !( o instanceof Version ) )
{
return false;
}
final Version that = (Version) o;
if( this.revision != that.revision() )
{
return false;
}
if( this.build != that.build() )
{
return false;
}
return this.channel == that.channel();
}
@Override
public final String toString()
{
return "Version{" +
"revision=" + this.revision +
", channel=" + this.channel +
", build=" + this.build +
'}';
}
}