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*
* Licensed 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
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* http://www.apache.org/licenses/LICENSE-2.0
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package hr.fer.zemris.vhdllab.applets.editor.schema2.model.commands;
import hr.fer.zemris.vhdllab.applets.editor.schema2.enums.EErrorTypes;
import hr.fer.zemris.vhdllab.applets.editor.schema2.enums.EPropertyChange;
import hr.fer.zemris.vhdllab.applets.editor.schema2.exceptions.InvalidCommandOperationException;
import hr.fer.zemris.vhdllab.applets.editor.schema2.interfaces.ICommand;
import hr.fer.zemris.vhdllab.applets.editor.schema2.interfaces.ICommandResponse;
import hr.fer.zemris.vhdllab.applets.editor.schema2.interfaces.ISchemaComponent;
import hr.fer.zemris.vhdllab.applets.editor.schema2.interfaces.ISchemaInfo;
import hr.fer.zemris.vhdllab.applets.editor.schema2.interfaces.ISchemaWire;
import hr.fer.zemris.vhdllab.applets.editor.schema2.misc.Caseless;
import hr.fer.zemris.vhdllab.applets.editor.schema2.misc.ChangeTuple;
import hr.fer.zemris.vhdllab.applets.editor.schema2.misc.SchemaError;
import hr.fer.zemris.vhdllab.applets.editor.schema2.misc.SchemaPort;
import hr.fer.zemris.vhdllab.applets.editor.schema2.model.CommandResponse;
public class PlugWireCommand implements ICommand {
/* static fields */
public static final String COMMAND_NAME = "ConnectWireCommand";
/* private fields */
private Caseless cmpname, wirename, portname;
/* ctors */
public PlugWireCommand(Caseless componentName, Caseless schemaWireName, Caseless schemaPortName) {
cmpname = componentName;
wirename = schemaWireName;
portname = schemaPortName;
}
/* methods */
public String getCommandName() {
return COMMAND_NAME;
}
public boolean isUndoable() {
return false;
}
public ICommandResponse performCommand(ISchemaInfo info) {
ISchemaComponent cmp = info.getComponents().fetchComponent(cmpname);
if (cmp == null) return new CommandResponse(new SchemaError(EErrorTypes.NONEXISTING_COMPONENT_NAME,
"Component with name '" + cmpname.toString() + "' could not be found."));
if (cmp.isInvalidated()) return new CommandResponse(
new SchemaError(EErrorTypes.COMPONENT_INVALIDATED, "Component with name '" +
cmpname.toString() + "' is invalidated."));
ISchemaWire wire = info.getWires().fetchWire(wirename);
if (wire == null) return new CommandResponse(new SchemaError(EErrorTypes.NONEXISTING_WIRE_NAME,
"Wire with name '" + wirename.toString() + "' could not be found."));
SchemaPort port = cmp.getSchemaPort(portname);
if (port == null) return new CommandResponse(new SchemaError(EErrorTypes.NONEXISTING_PORT_NAME,
"Port '" + portname.toString() + "' could not be found on component '" + cmpname.toString() + "'."));
if (!Caseless.isNullOrEmpty(port.getMapping())) return new CommandResponse(new SchemaError(EErrorTypes.MAPPING_ERROR,
"Port '" + portname.toString() + "' already mapped to wire '" + port.getMapping().toString() + "'."));
port.setMapping(wire.getName());
return new CommandResponse(new ChangeTuple(EPropertyChange.CANVAS_CHANGE));
}
public ICommandResponse undoCommand(ISchemaInfo info)
throws InvalidCommandOperationException
{
ISchemaComponent cmp = info.getComponents().fetchComponent(cmpname);
if (cmp == null) return new CommandResponse(new SchemaError(EErrorTypes.NONEXISTING_COMPONENT_NAME,
"Component with name '" + cmpname.toString() + "' could not be found."));
ISchemaWire wire = info.getWires().fetchWire(wirename);
if (wire == null) return new CommandResponse(new SchemaError(EErrorTypes.NONEXISTING_WIRE_NAME,
"Wire with name '" + wirename.toString() + "' could not be found."));
SchemaPort port = cmp.getSchemaPort(portname);
if (port == null) return new CommandResponse(new SchemaError(EErrorTypes.NONEXISTING_PORT_NAME,
"Port '" + portname.toString() + "' could not be found on component '" + cmpname.toString() + "'."));
if (port.getMapping() == null) return new CommandResponse(new SchemaError(EErrorTypes.MAPPING_ERROR,
"Port '" + portname.toString() + "' not mapped to anything - cannot undo."));
port.setMapping(null);
return new CommandResponse(new ChangeTuple(EPropertyChange.CANVAS_CHANGE));
}
}