256 lines
7 KiB
Java
256 lines
7 KiB
Java
/*
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* This file is part of Applied Energistics 2.
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* Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
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*
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* Applied Energistics 2 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Applied Energistics 2 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
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*/
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package appeng.transformer.asm;
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import java.util.Iterator;
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import javax.annotation.Nullable;
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import net.minecraft.launchwrapper.IClassTransformer;
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import net.minecraftforge.fml.relauncher.FMLRelaunchLog;
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import org.apache.logging.log4j.Level;
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import org.objectweb.asm.ClassReader;
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import org.objectweb.asm.ClassWriter;
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import org.objectweb.asm.Type;
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import org.objectweb.asm.tree.AnnotationNode;
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import org.objectweb.asm.tree.ClassNode;
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import org.objectweb.asm.tree.MethodNode;
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import appeng.helpers.Reflected;
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import appeng.integration.IntegrationRegistry;
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import appeng.integration.IntegrationType;
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import appeng.transformer.annotations.Integration;
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@Reflected
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public final class ASMIntegration implements IClassTransformer
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{
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@Reflected
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public ASMIntegration()
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{
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/**
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* Side, Display Name, ModID ClassPostFix
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*/
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for( IntegrationType type : IntegrationType.values() )
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{
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IntegrationRegistry.INSTANCE.add( type );
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}
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// integrationModules.add( IntegrationSide.BOTH, "Thermal Expansion", "ThermalExpansion", IntegrationType.TE );
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// integrationModules.add( IntegrationSide.BOTH, "Mystcraft", "Mystcraft", IntegrationType.Mystcraft );
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// integrationModules.add( IntegrationSide.BOTH, "Greg Tech", "gregtech_addon", IntegrationType.GT );
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// integrationModules.add( IntegrationSide.BOTH, "Universal Electricity", null, IntegrationType.UE );
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// integrationModules.add( IntegrationSide.BOTH, "Logistics Pipes", "LogisticsPipes|Main", IntegrationType.LP );
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// integrationModules.add( IntegrationSide.BOTH, "Better Storage", IntegrationType.betterstorage );
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// integrationModules.add( IntegrationSide.BOTH, "Forestry", "Forestry", IntegrationType.Forestry );
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// integrationModules.add( IntegrationSide.BOTH, "Mekanism", "Mekanism", IntegrationType.Mekanism );
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}
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@Nullable
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@Override
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public byte[] transform( String name, String transformedName, byte[] basicClass )
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{
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if( basicClass == null || transformedName.startsWith( "appeng.transformer" ) )
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{
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return basicClass;
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}
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if( transformedName.startsWith( "appeng." ) )
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{
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ClassNode classNode = new ClassNode();
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ClassReader classReader = new ClassReader( basicClass );
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classReader.accept( classNode, 0 );
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try
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{
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boolean reWrite = this.removeOptionals( classNode );
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if( reWrite )
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{
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ClassWriter writer = new ClassWriter( ClassWriter.COMPUTE_MAXS );
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classNode.accept( writer );
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return writer.toByteArray();
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}
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}
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catch( Throwable t )
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{
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t.printStackTrace();
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}
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}
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return basicClass;
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}
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private boolean removeOptionals( ClassNode classNode )
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{
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boolean changed = false;
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if( classNode.visibleAnnotations != null )
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{
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for( AnnotationNode an : classNode.visibleAnnotations )
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{
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if( this.hasAnnotation( an, Integration.Interface.class ) )
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{
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if( this.stripInterface( classNode, Integration.Interface.class, an ) )
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{
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changed = true;
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}
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}
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else if( this.hasAnnotation( an, Integration.InterfaceList.class ) )
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{
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for( Object o : ( (Iterable) an.values.get( 1 ) ) )
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{
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if( this.stripInterface( classNode, Integration.InterfaceList.class, (AnnotationNode) o ) )
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{
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changed = true;
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}
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}
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}
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}
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}
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Iterator<MethodNode> i = classNode.methods.iterator();
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while( i.hasNext() )
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{
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MethodNode mn = i.next();
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if( mn.visibleAnnotations != null )
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{
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for( AnnotationNode an : mn.visibleAnnotations )
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{
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if( this.hasAnnotation( an, Integration.Method.class ) )
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{
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if( this.stripMethod( classNode, mn, i, Integration.Method.class, an ) )
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{
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changed = true;
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}
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}
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}
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}
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}
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if( changed )
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{
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this.log( "Updated " + classNode.name );
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}
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return changed;
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}
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private boolean hasAnnotation( AnnotationNode ann, Class<?> annotation )
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{
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return ann.desc.equals( Type.getDescriptor( annotation ) );
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}
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private boolean stripInterface( ClassNode classNode, Class<?> class1, AnnotationNode an )
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{
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if( an.values.size() != 4 )
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{
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throw new IllegalArgumentException( "Unable to handle Interface annotation on " + classNode.name );
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}
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String iFace = null;
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String iName = null;
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if( an.values.get( 0 ).equals( "iface" ) )
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{
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iFace = (String) an.values.get( 1 );
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}
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else if( an.values.get( 2 ).equals( "iface" ) )
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{
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iFace = (String) an.values.get( 3 );
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}
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if( an.values.get( 0 ).equals( "iname" ) )
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{
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iName = ( (String[]) an.values.get( 1 ) )[1];
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}
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else if( an.values.get( 2 ).equals( "iname" ) )
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{
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iName = ( (String[]) an.values.get( 3 ) )[1];
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}
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if( iName != null && iFace != null )
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{
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final IntegrationType type = IntegrationType.valueOf( iName );
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if( !IntegrationRegistry.INSTANCE.isEnabled( type ) )
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{
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this.log( "Removing Interface " + iFace + " from " + classNode.name + " because " + iName + " integration is disabled." );
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classNode.interfaces.remove( iFace.replace( '.', '/' ) );
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return true;
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}
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else
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{
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this.log( "Allowing Interface " + iFace + " from " + classNode.name + " because " + iName + " integration is enabled." );
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}
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}
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else
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{
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throw new IllegalStateException( "Unable to handle Method annotation on " + classNode.name );
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}
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return false;
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}
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private boolean stripMethod( ClassNode classNode, MethodNode mn, Iterator<MethodNode> i, Class class1, AnnotationNode an )
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{
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if( an.values.size() != 2 )
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{
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throw new IllegalArgumentException( "Unable to handle Method annotation on " + classNode.name );
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}
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String iName = null;
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if( an.values.get( 0 ).equals( "iname" ) )
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{
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iName = ( (String[]) an.values.get( 1 ) )[1];
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}
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if( iName != null )
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{
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IntegrationType type = IntegrationType.valueOf( iName );
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if( !IntegrationRegistry.INSTANCE.isEnabled( type ) )
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{
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this.log( "Removing Method " + mn.name + " from " + classNode.name + " because " + iName + " integration is disabled." );
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i.remove();
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return true;
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}
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else
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{
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this.log( "Allowing Method " + mn.name + " from " + classNode.name + " because " + iName + " integration is enabled." );
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}
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}
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else
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{
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throw new IllegalStateException( "Unable to handle Method annotation on " + classNode.name );
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}
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return false;
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}
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private void log( String string )
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{
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FMLRelaunchLog.log( "AE2-CORE", Level.INFO, string );
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}
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}
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