org.jodconverter.document.DumpJsonDefaultDocumentFormatRegistry.java Source code

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Here is the source code for org.jodconverter.document.DumpJsonDefaultDocumentFormatRegistry.java

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/*
 * Copyright 2004 - 2012 Mirko Nasato and contributors
 *           2016 - 2018 Simon Braconnier and contributors
 *
 * This file is part of JODConverter - Java OpenDocument Converter.
 *
 * 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 org.jodconverter.document;

import java.util.Map;
import java.util.TreeMap;

import org.apache.commons.lang3.reflect.FieldUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.google.gson.Gson;
import com.google.gson.GsonBuilder;

/** Executable class that dumps a JSON version of the DefaultDocumentFormatRegistry. */
final class DumpJsonDefaultDocumentFormatRegistry {

    private static final Logger LOGGER = LoggerFactory.getLogger(DumpJsonDefaultDocumentFormatRegistry.class);

    public static void main(final String[] args) throws Exception {

        final DocumentFormatRegistry registry = DefaultDocumentFormatRegistry.getInstance();
        @SuppressWarnings("unchecked")
        final TreeMap<String, DocumentFormat> formats = new TreeMap<>(
                (Map<String, DocumentFormat>) FieldUtils.readField(registry, "fmtsByExtension", true));

        final Gson gson = new GsonBuilder().setPrettyPrinting().create();
        LOGGER.info(gson.toJson(formats.values()));
    }

    // Private ctor.
    private DumpJsonDefaultDocumentFormatRegistry() {
        super();
    }
}