86 lines
2.5 KiB
Java
86 lines
2.5 KiB
Java
/*
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* ******************************************************************************
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* *
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* *
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* * This program and the accompanying materials are made available under the
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* * terms of the Apache License, Version 2.0 which is available at
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* * https://www.apache.org/licenses/LICENSE-2.0.
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* *
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* * See the NOTICE file distributed with this work for additional
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* * information regarding copyright ownership.
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* * Unless required by applicable law or agreed to in writing, software
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* * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* * License for the specific language governing permissions and limitations
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* * under the License.
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* *
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* * SPDX-License-Identifier: Apache-2.0
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* *****************************************************************************
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*/
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package org.deeplearning4j.text.documentiterator;
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import lombok.Getter;
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import lombok.NonNull;
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import org.deeplearning4j.core.parallelism.AsyncIterator;
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import java.util.Iterator;
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import java.util.NoSuchElementException;
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public class AsyncLabelAwareIterator implements LabelAwareIterator, Iterator<LabelledDocument> {
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protected LabelAwareIterator backedIterator;
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@Getter
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protected AsyncIterator<LabelledDocument> asyncIterator;
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protected int bufferSize;
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public AsyncLabelAwareIterator(@NonNull LabelAwareIterator iterator, int bufferSize) {
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this.backedIterator = iterator;
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this.bufferSize = bufferSize;
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this.asyncIterator = new AsyncIterator<>(backedIterator, bufferSize);
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}
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@Override
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public void remove() {
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// no-op
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}
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@Override
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public boolean hasNextDocument() {
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return asyncIterator.hasNext();
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}
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@Override
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public LabelledDocument nextDocument() {
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return asyncIterator.next();
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}
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@Override
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public void reset() {
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asyncIterator.shutdown();
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backedIterator.reset();
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asyncIterator = new AsyncIterator<>(backedIterator, bufferSize);
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}
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@Override
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public void shutdown() {
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asyncIterator.shutdown();
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backedIterator.shutdown();
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}
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@Override
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public LabelsSource getLabelsSource() {
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return backedIterator.getLabelsSource();
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}
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@Override
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public boolean hasNext() {
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return hasNextDocument();
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}
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@Override
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public LabelledDocument next() throws NoSuchElementException {
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return nextDocument();
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}
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}
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