org.nd4j.linalg.api.ops.impl.shape.tensorops.BaseTensorOp Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2015-2018 Skymind, Inc.
*
* 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.
*
* 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.
*
* SPDX-License-Identifier: Apache-2.0
******************************************************************************/
package org.nd4j.linalg.api.ops.impl.shape.tensorops;
import lombok.val;
import org.nd4j.autodiff.samediff.SDVariable;
import org.nd4j.autodiff.samediff.SameDiff;
import org.nd4j.imports.NoOpNameFoundException;
import org.nd4j.imports.graphmapper.tf.TFGraphMapper;
import org.nd4j.linalg.api.ops.DynamicCustomOp;
import org.nd4j.linalg.api.ops.Op;
import org.nd4j.linalg.api.shape.LongShapeDescriptor;
import org.tensorflow.framework.AttrValue;
import org.tensorflow.framework.GraphDef;
import org.tensorflow.framework.NodeDef;
import java.util.Collections;
import java.util.List;
import java.util.Map;
public abstract class BaseTensorOp extends DynamicCustomOp {
public BaseTensorOp(String name, SameDiff sameDiff, SDVariable[] args){
super(name, sameDiff, args);
}
public BaseTensorOp(SameDiff sameDiff, SDVariable[] args){
super(null, sameDiff, args);
}
public BaseTensorOp(){}
@Override
public void initFromTensorFlow(NodeDef nodeDef, SameDiff initWith, Map attributesForNode, GraphDef graph) {
val inputOne = nodeDef.getInput(1);
val varFor = initWith.getVariable(inputOne);
val nodeWithIndex = TFGraphMapper.getInstance().getNodeWithNameFromGraph(graph,inputOne);
val var = TFGraphMapper.getInstance().getArrayFrom(nodeWithIndex,graph);
if(var != null) {
val idx = var.getInt(0);
addIArgument(idx);
}
}
@Override
public List doDiff(List f1) {
throw new UnsupportedOperationException("Differentiation not yet implemented for " + getClass().getName());
}
@Override
public Op.Type opType() {
return Op.Type.CUSTOM;
}
@Override
public String onnxName() {
throw new NoOpNameFoundException("No onnx op name found for " + opName());
}
@Override
public String toString() {
return opName();
}
@Override
public List calculateOutputShape() {
//Not used/not required
return Collections.emptyList();
}
@Override
public int getNumOutputs(){
//1 output in allay cases - sometimes just a dummy output, however
return 1;
}
}