org.nd4j.autodiff.samediff.array.SingleThreadArrayHolder Maven / Gradle / Ivy
/*
* ******************************************************************************
* *
* *
* * 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.
* *
* * SPDX-License-Identifier: Apache-2.0
* *****************************************************************************
*/
package org.nd4j.autodiff.samediff.array;
import lombok.NonNull;
import org.nd4j.autodiff.samediff.ArrayHolder;
import org.nd4j.linalg.api.ndarray.INDArray;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
public class SingleThreadArrayHolder implements ArrayHolder {
private final Map map = new HashMap<>();
@Override
public boolean hasArray(@NonNull String name) {
return map.containsKey(name);
}
@Override
public INDArray getArray(@NonNull String name) {
return map.get(name);
}
@Override
public void setArray(@NonNull String name, @NonNull INDArray array) {
map.put(name, array);
}
@Override
public INDArray removeArray(@NonNull String name) {
return map.remove(name);
}
@Override
public int size() {
return map.size();
}
@Override
public void initFrom(ArrayHolder arrayHolder) {
map.clear();
Collection names = arrayHolder.arrayNames();
for (String n : names) {
map.put(n, arrayHolder.getArray(n));
}
}
@Override
public Collection arrayNames() {
return Collections.unmodifiableCollection(map.keySet());
}
@Override
public void rename(String from, String to) {
INDArray arr = map.remove(from);
map.put(to, arr);
}
}