org.deeplearning4j.text.sentenceiterator.LineSentenceIterator 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.deeplearning4j.text.sentenceiterator;
import org.apache.commons.io.IOUtils;
import org.apache.commons.io.LineIterator;
import java.io.*;
/**
* Each line is a sentence
*
* @author Adam Gibson
*/
public class LineSentenceIterator extends BaseSentenceIterator {
private InputStream file;
private LineIterator iter;
private File f;
public LineSentenceIterator(File f) {
if (!f.exists() || !f.isFile())
throw new IllegalArgumentException("Please specify an existing file");
try {
this.f = f;
this.file = new BufferedInputStream(new FileInputStream(f));
iter = IOUtils.lineIterator(this.file, "UTF-8");
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Override
public String nextSentence() {
String line = iter.nextLine();
if (preProcessor != null) {
line = preProcessor.preProcess(line);
}
return line;
}
@Override
public boolean hasNext() {
return iter.hasNext();
}
@Override
public void reset() {
try {
if (file != null)
file.close();
if (iter != null)
iter.close();
this.file = new BufferedInputStream(new FileInputStream(f));
iter = IOUtils.lineIterator(this.file, "UTF-8");
} catch (IOException e) {
throw new RuntimeException(e);
}
}
}