001/*
002 * Copyright (c) 2015-2020, Oracle and/or its affiliates. All rights reserved.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.tribuo.provenance.impl;
018
019import com.oracle.labs.mlrg.olcut.provenance.Provenance;
020import org.tribuo.Trainer;
021import org.tribuo.provenance.TrainerProvenance;
022
023import java.util.Collections;
024import java.util.Map;
025
026/**
027 * An empty TrainerProvenance, should not be used except by the provenance removal system.
028 */
029public final class EmptyTrainerProvenance implements TrainerProvenance {
030    private static final long serialVersionUID = 1L;
031
032    public EmptyTrainerProvenance() { }
033
034    public EmptyTrainerProvenance(Map<String,Provenance> map) {}
035
036    @Override
037    public Map<String, Provenance> getConfiguredParameters() {
038        return Collections.emptyMap();
039    }
040
041    @Override
042    public String getClassName() {
043        return Trainer.class.getName();
044    }
045
046    @Override
047    public boolean equals(Object other) {
048        return other instanceof EmptyTrainerProvenance;
049    }
050
051    @Override
052    public int hashCode() {
053        return 31;
054    }
055
056    @Override
057    public String toString() {
058        return generateString("EmptyTrainer");
059    }
060}