eu.freme.eservices.pipelines.core.Conversion.java Source code

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Here is the source code for eu.freme.eservices.pipelines.core.Conversion.java

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/**
 * Copyright (C) 2015 Agro-Know, Deutsches Forschungszentrum fr Knstliche Intelligenz, iMinds,
 * Institut fr Angewandte Informatik e. V. an der Universitt Leipzig,
 * Istituto Superiore Mario Boella, Tilde, Vistatec, WRIPL (http://freme-project.eu)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *         http://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.
 */
package eu.freme.eservices.pipelines.core;

import eu.freme.i18n.api.EInternationalizationAPI;
import eu.freme.i18n.okapi.nif.converter.ConversionException;
import org.apache.commons.io.IOUtils;

import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.nio.charset.StandardCharsets;

/**
 * <p>Converts HTML to NIF and back using e-Internationalization</p>
 * <p>
 * <p>Copyright 2015 MMLab, UGent</p>
 *
 * @author Gerald Haesendonck
 */
public class Conversion {
    private final EInternationalizationAPI eInternationalizationApi;
    private String skeletonNIF = "";

    public Conversion(EInternationalizationAPI eInternationalizationApi) {
        this.eInternationalizationApi = eInternationalizationApi;
    }

    public String htmlToNif(final String html) throws IOException, ConversionException {
        try (InputStream in = IOUtils.toInputStream(html, StandardCharsets.UTF_8)) {
            try (Reader reader = eInternationalizationApi.convertToTurtleWithMarkups(in,
                    EInternationalizationAPI.MIME_TYPE_HTML)) {
                skeletonNIF = IOUtils.toString(reader);
            }
        }
        try (InputStream in = IOUtils.toInputStream(html, StandardCharsets.UTF_8)) {
            try (Reader reader = eInternationalizationApi.convertToTurtle(in,
                    EInternationalizationAPI.MIME_TYPE_HTML)) {
                return IOUtils.toString(reader);
            }
        }
    }

    public String nifToHtml(final String enrichedNIF) throws IOException {
        try (InputStream enrichedFile = IOUtils.toInputStream(enrichedNIF, StandardCharsets.UTF_8);
                InputStream skeletonFile = IOUtils.toInputStream(skeletonNIF, StandardCharsets.UTF_8)) {
            try (Reader htmlReader = eInternationalizationApi.convertBack(skeletonFile, enrichedFile)) {
                String html = IOUtils.toString(htmlReader);
                skeletonNIF = "";
                return html;
            }
        }
    }
}