413 lines
13 KiB
Java
413 lines
13 KiB
Java
/*
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* This file is part of ComputerCraft - http://www.computercraft.info
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* Copyright Daniel Ratcliffe, 2011-2019. Do not distribute without permission.
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* Send enquiries to dratcliffe@gmail.com
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*/
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package dan200.computercraft.shared.peripheral.modem.wired;
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import com.google.common.collect.ImmutableMap;
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import dan200.computercraft.api.filesystem.IMount;
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import dan200.computercraft.api.filesystem.IWritableMount;
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import dan200.computercraft.api.lua.ILuaContext;
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import dan200.computercraft.api.lua.LuaException;
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import dan200.computercraft.api.network.IPacketNetwork;
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import dan200.computercraft.api.network.wired.IWiredNode;
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import dan200.computercraft.api.network.wired.IWiredSender;
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import dan200.computercraft.api.peripheral.IComputerAccess;
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import dan200.computercraft.api.peripheral.IPeripheral;
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import dan200.computercraft.api.peripheral.IWorkMonitor;
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import dan200.computercraft.shared.peripheral.modem.ModemPeripheral;
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import dan200.computercraft.shared.peripheral.modem.ModemState;
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import net.minecraft.world.World;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.concurrent.ConcurrentHashMap;
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import java.util.concurrent.ConcurrentMap;
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import static dan200.computercraft.core.apis.ArgumentHelper.getString;
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public abstract class WiredModemPeripheral extends ModemPeripheral implements IWiredSender
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{
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private final WiredModemElement modem;
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private final Map<IComputerAccess, ConcurrentMap<String, RemotePeripheralWrapper>> peripheralWrappers = new HashMap<>( 1 );
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public WiredModemPeripheral( ModemState state, WiredModemElement modem )
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{
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super( state );
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this.modem = modem;
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}
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//region IPacketSender implementation
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@Override
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public boolean isInterdimensional()
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{
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return false;
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}
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@Override
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public double getRange()
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{
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return 256.0;
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}
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@Override
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protected IPacketNetwork getNetwork()
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{
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return modem.getNode();
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}
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@Nonnull
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@Override
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public World getWorld()
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{
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return modem.getWorld();
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}
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@Nonnull
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protected abstract WiredModemLocalPeripheral getLocalPeripheral();
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//endregion
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//region IPeripheral
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@Nonnull
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@Override
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public String[] getMethodNames()
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{
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String[] methods = super.getMethodNames();
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String[] newMethods = new String[methods.length + 6];
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System.arraycopy( methods, 0, newMethods, 0, methods.length );
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newMethods[methods.length] = "getNamesRemote";
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newMethods[methods.length + 1] = "isPresentRemote";
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newMethods[methods.length + 2] = "getTypeRemote";
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newMethods[methods.length + 3] = "getMethodsRemote";
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newMethods[methods.length + 4] = "callRemote";
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newMethods[methods.length + 5] = "getNameLocal";
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return newMethods;
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}
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@Override
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public Object[] callMethod( @Nonnull IComputerAccess computer, @Nonnull ILuaContext context, int method, @Nonnull Object[] arguments ) throws LuaException, InterruptedException
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{
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String[] methods = super.getMethodNames();
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switch( method - methods.length )
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{
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case 0:
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{
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// getNamesRemote
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Map<String, RemotePeripheralWrapper> wrappers = getWrappers( computer );
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Map<Object, Object> table = new HashMap<>();
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if( wrappers != null )
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{
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int idx = 1;
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for( String name : wrappers.keySet() ) table.put( idx++, name );
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}
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return new Object[] { table };
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}
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case 1:
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{
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// isPresentRemote
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String name = getString( arguments, 0 );
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return new Object[] { getWrapper( computer, name ) != null };
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}
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case 2:
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{
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// getTypeRemote
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String name = getString( arguments, 0 );
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RemotePeripheralWrapper wrapper = getWrapper( computer, name );
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return wrapper != null ? new Object[] { wrapper.getType() } : null;
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}
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case 3:
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{
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// getMethodsRemote
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String name = getString( arguments, 0 );
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RemotePeripheralWrapper wrapper = getWrapper( computer, name );
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if( wrapper == null ) return null;
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String[] methodNames = wrapper.getMethodNames();
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Map<Object, Object> table = new HashMap<>();
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for( int i = 0; i < methodNames.length; i++ )
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{
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table.put( i + 1, methodNames[i] );
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}
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return new Object[] { table };
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}
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case 4:
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{
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// callRemote
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String remoteName = getString( arguments, 0 );
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String methodName = getString( arguments, 1 );
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RemotePeripheralWrapper wrapper = getWrapper( computer, remoteName );
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if( wrapper == null ) throw new LuaException( "No peripheral: " + remoteName );
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Object[] methodArgs = new Object[arguments.length - 2];
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System.arraycopy( arguments, 2, methodArgs, 0, arguments.length - 2 );
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return wrapper.callMethod( context, methodName, methodArgs );
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}
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case 5:
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{
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// getNameLocal
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String local = getLocalPeripheral().getConnectedName();
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return local == null ? null : new Object[] { local };
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}
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default:
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{
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// The regular modem methods
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return super.callMethod( computer, context, method, arguments );
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}
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}
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}
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@Override
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public void attach( @Nonnull IComputerAccess computer )
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{
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super.attach( computer );
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ConcurrentMap<String, RemotePeripheralWrapper> wrappers;
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synchronized( peripheralWrappers )
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{
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wrappers = peripheralWrappers.get( computer );
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if( wrappers == null ) peripheralWrappers.put( computer, wrappers = new ConcurrentHashMap<>() );
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}
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synchronized( modem.getRemotePeripherals() )
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{
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for( Map.Entry<String, IPeripheral> entry : modem.getRemotePeripherals().entrySet() )
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{
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attachPeripheralImpl( computer, wrappers, entry.getKey(), entry.getValue() );
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}
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}
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}
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@Override
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public void detach( @Nonnull IComputerAccess computer )
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{
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Map<String, RemotePeripheralWrapper> wrappers;
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synchronized( peripheralWrappers )
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{
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wrappers = peripheralWrappers.remove( computer );
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}
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if( wrappers != null )
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{
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for( RemotePeripheralWrapper wrapper : wrappers.values() ) wrapper.detach();
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wrappers.clear();
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}
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super.detach( computer );
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}
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@Override
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public boolean equals( IPeripheral other )
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{
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if( other instanceof WiredModemPeripheral )
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{
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WiredModemPeripheral otherModem = (WiredModemPeripheral) other;
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return otherModem.modem == modem;
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}
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return false;
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}
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//endregion
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@Nonnull
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@Override
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public IWiredNode getNode()
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{
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return modem.getNode();
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}
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public void attachPeripheral( String name, IPeripheral peripheral )
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{
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synchronized( peripheralWrappers )
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{
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for( Map.Entry<IComputerAccess, ConcurrentMap<String, RemotePeripheralWrapper>> entry : peripheralWrappers.entrySet() )
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{
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attachPeripheralImpl( entry.getKey(), entry.getValue(), name, peripheral );
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}
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}
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}
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public void detachPeripheral( String name )
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{
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synchronized( peripheralWrappers )
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{
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for( ConcurrentMap<String, RemotePeripheralWrapper> wrappers : peripheralWrappers.values() )
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{
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RemotePeripheralWrapper wrapper = wrappers.remove( name );
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if( wrapper != null ) wrapper.detach();
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}
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}
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}
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private void attachPeripheralImpl( IComputerAccess computer, ConcurrentMap<String, RemotePeripheralWrapper> peripherals, String periphName, IPeripheral peripheral )
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{
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if( !peripherals.containsKey( periphName ) && !periphName.equals( getLocalPeripheral().getConnectedName() ) )
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{
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RemotePeripheralWrapper wrapper = new RemotePeripheralWrapper( modem, peripheral, computer, periphName );
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peripherals.put( periphName, wrapper );
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wrapper.attach();
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}
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}
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private ConcurrentMap<String, RemotePeripheralWrapper> getWrappers( IComputerAccess computer )
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{
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synchronized( peripheralWrappers )
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{
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return peripheralWrappers.get( computer );
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}
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}
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private RemotePeripheralWrapper getWrapper( IComputerAccess computer, String remoteName )
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{
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ConcurrentMap<String, RemotePeripheralWrapper> wrappers = getWrappers( computer );
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return wrappers == null ? null : wrappers.get( remoteName );
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}
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private static class RemotePeripheralWrapper implements IComputerAccess
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{
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private final WiredModemElement m_element;
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private final IPeripheral m_peripheral;
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private final IComputerAccess m_computer;
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private final String m_name;
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private final String m_type;
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private final String[] m_methods;
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private final Map<String, Integer> m_methodMap;
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RemotePeripheralWrapper( WiredModemElement element, IPeripheral peripheral, IComputerAccess computer, String name )
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{
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m_element = element;
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m_peripheral = peripheral;
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m_computer = computer;
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m_name = name;
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m_type = peripheral.getType();
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m_methods = peripheral.getMethodNames();
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assert m_type != null;
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assert m_methods != null;
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m_methodMap = new HashMap<>();
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for( int i = 0; i < m_methods.length; i++ )
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{
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if( m_methods[i] != null )
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{
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m_methodMap.put( m_methods[i], i );
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}
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}
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}
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public void attach()
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{
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m_peripheral.attach( this );
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m_computer.queueEvent( "peripheral", new Object[] { getAttachmentName() } );
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}
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public void detach()
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{
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m_peripheral.detach( this );
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m_computer.queueEvent( "peripheral_detach", new Object[] { getAttachmentName() } );
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}
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public String getType()
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{
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return m_type;
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}
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public String[] getMethodNames()
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{
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return m_methods;
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}
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public Object[] callMethod( ILuaContext context, String methodName, Object[] arguments ) throws LuaException, InterruptedException
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{
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if( m_methodMap.containsKey( methodName ) )
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{
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int method = m_methodMap.get( methodName );
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return m_peripheral.callMethod( this, context, method, arguments );
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}
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throw new LuaException( "No such method " + methodName );
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}
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// IComputerAccess implementation
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@Override
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public String mount( @Nonnull String desiredLocation, @Nonnull IMount mount )
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{
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return m_computer.mount( desiredLocation, mount, m_name );
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}
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@Override
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public String mount( @Nonnull String desiredLocation, @Nonnull IMount mount, @Nonnull String driveName )
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{
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return m_computer.mount( desiredLocation, mount, driveName );
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}
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@Override
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public String mountWritable( @Nonnull String desiredLocation, @Nonnull IWritableMount mount )
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{
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return m_computer.mountWritable( desiredLocation, mount, m_name );
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}
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@Override
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public String mountWritable( @Nonnull String desiredLocation, @Nonnull IWritableMount mount, @Nonnull String driveName )
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{
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return m_computer.mountWritable( desiredLocation, mount, driveName );
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}
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@Override
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public void unmount( String location )
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{
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m_computer.unmount( location );
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}
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@Override
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public int getID()
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{
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return m_computer.getID();
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}
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@Override
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public void queueEvent( @Nonnull String event, Object[] arguments )
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{
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m_computer.queueEvent( event, arguments );
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}
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@Nullable
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@Override
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public IWorkMonitor getMainThreadMonitor()
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{
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return m_computer.getMainThreadMonitor();
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}
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@Nonnull
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@Override
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public String getAttachmentName()
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{
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return m_name;
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}
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@Nonnull
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@Override
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public Map<String, IPeripheral> getAvailablePeripherals()
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{
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synchronized( m_element.getRemotePeripherals() )
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{
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return ImmutableMap.copyOf( m_element.getRemotePeripherals() );
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}
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}
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@Nullable
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@Override
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public IPeripheral getAvailablePeripheral( @Nonnull String name )
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{
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synchronized( m_element.getRemotePeripherals() )
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{
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return m_element.getRemotePeripherals().get( name );
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}
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}
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}
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}
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