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/*
* ******************************************************************************
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* *
* * This program and the accompanying materials are made available under the
* * terms of the Apache License, Version 2.0 which is available at
* * https://www.apache.org/licenses/LICENSE-2.0.
* *
* * See the NOTICE file distributed with this work for additional
* * information regarding copyright ownership.
* * Unless required by applicable law or agreed to in writing, software
* * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* * License for the specific language governing permissions and limitations
* * under the License.
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* * SPDX-License-Identifier: Apache-2.0
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package org.nd4j.linalg.api.ops.impl.shape;
import lombok.NonNull;
import lombok.extern.slf4j.Slf4j;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.common.base.Preconditions;
import org.nd4j.imports.NoOpNameFoundException;
import org.nd4j.imports.graphmapper.tf.TFGraphMapper;
import org.nd4j.linalg.api.buffer.DataType;
import org.nd4j.linalg.api.ndarray.INDArray;
import org.nd4j.linalg.api.ops.DynamicCustomOp;
import org.tensorflow.framework.AttrValue;
import org.tensorflow.framework.GraphDef;
import org.tensorflow.framework.NodeDef;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Map;
@Slf4j
public class OnesAs extends DynamicCustomOp {
protected DataType outputType; //Allow customizing dtype for TF import
public OnesAs() {
}
public OnesAs(SameDiff sameDiff, SDVariable input) {
this(null, sameDiff, input);
}
public OnesAs(String name, SameDiff sameDiff, SDVariable input) {
this(name, sameDiff, input, input.dataType());
}
public OnesAs(SameDiff sameDiff, SDVariable input, DataType dataType) {
this(null, sameDiff, input, dataType);
}
public OnesAs(String name, SameDiff sameDiff, SDVariable input, DataType dataType) {
super(name, sameDiff, new SDVariable[]{input}, false);
this.outputType = dataType;
addArgs();
}
public OnesAs(@NonNull INDArray input, DataType dataType) {
this.addInputArgument(input);
this.outputType = dataType;
addArgs();
}
public OnesAs(@NonNull INDArray input) {
this(input, input.dataType());
}
public void addArgs() {
if (outputType != null)
addDArgument(outputType);
}
@Override
public String opName() {
return "ones_as";
}
@Override
public String onnxName() {
throw new NoOpNameFoundException("No op found for " + opName());
}
@Override
public String tensorflowName() {
return "Ones";
}
@Override
public void initFromTensorFlow(NodeDef nodeDef, SameDiff initWith, Map attributesForNode, GraphDef graph) {
if(attributesForNode.containsKey("T")) {
outputType = TFGraphMapper.convertType(attributesForNode.get("T").getType());
}
addArgs();
}
@Override
public List doDiff(List i_v) {
SDVariable ret = sameDiff.zerosLike(outputVariables()[0]);
return Arrays.asList(ret);
}
@Override
public List calculateOutputDataTypes(List dataTypes){
Preconditions.checkState(dataTypes.size() == 1, "Expected list with exactly 1 datatype for %s, got %s", getClass(), dataTypes);
if(outputType != null){
return Collections.singletonList(outputType);
} else {
//Output type is same as input type
return dataTypes;
}
}
}