/*
 *  ******************************************************************************
 *  *
 *  *
 *  * 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.deeplearning4j.text.tokenization.tokenizerfactory;

import org.deeplearning4j.text.tokenization.tokenizer.DefaultStreamTokenizer;
import org.deeplearning4j.text.tokenization.tokenizer.DefaultTokenizer;
import org.deeplearning4j.text.tokenization.tokenizer.TokenPreProcess;
import org.deeplearning4j.text.tokenization.tokenizer.Tokenizer;

import java.io.InputStream;

/**
 * Default tokenizer based on string tokenizer or stream tokenizer
 * @author Adam Gibson
 */
public class DefaultTokenizerFactory implements TokenizerFactory {

    private TokenPreProcess tokenPreProcess;

    @Override
    public Tokenizer create(String toTokenize) {
        DefaultTokenizer t = new DefaultTokenizer(toTokenize);
        t.setTokenPreProcessor(tokenPreProcess);
        return t;
    }

    @Override
    public Tokenizer create(InputStream toTokenize) {
        Tokenizer t = new DefaultStreamTokenizer(toTokenize);
        t.setTokenPreProcessor(tokenPreProcess);
        return t;
    }

    @Override
    public void setTokenPreProcessor(TokenPreProcess preProcessor) {
        this.tokenPreProcess = preProcessor;
    }

    /**
     * Returns TokenPreProcessor set for this TokenizerFactory instance
     *
     * @return TokenPreProcessor instance, or null if no preprocessor was defined
     */
    @Override
    public TokenPreProcess getTokenPreProcessor() {
        return tokenPreProcess;
    }


}
