001/*
002 * Portions of this software was developed by employees of the National Institute
003 * of Standards and Technology (NIST), an agency of the Federal Government and is
004 * being made available as a public service. Pursuant to title 17 United States
005 * Code Section 105, works of NIST employees are not subject to copyright
006 * protection in the United States. This software may be subject to foreign
007 * copyright. Permission in the United States and in foreign countries, to the
008 * extent that NIST may hold copyright, to use, copy, modify, create derivative
009 * works, and distribute this software and its documentation without fee is hereby
010 * granted on a non-exclusive basis, provided that this notice and disclaimer
011 * of warranty appears in all copies.
012 *
013 * THE SOFTWARE IS PROVIDED 'AS IS' WITHOUT ANY WARRANTY OF ANY KIND, EITHER
014 * EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, ANY WARRANTY
015 * THAT THE SOFTWARE WILL CONFORM TO SPECIFICATIONS, ANY IMPLIED WARRANTIES OF
016 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND FREEDOM FROM
017 * INFRINGEMENT, AND ANY WARRANTY THAT THE DOCUMENTATION WILL CONFORM TO THE
018 * SOFTWARE, OR ANY WARRANTY THAT THE SOFTWARE WILL BE ERROR FREE.  IN NO EVENT
019 * SHALL NIST BE LIABLE FOR ANY DAMAGES, INCLUDING, BUT NOT LIMITED TO, DIRECT,
020 * INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF, RESULTING FROM,
021 * OR IN ANY WAY CONNECTED WITH THIS SOFTWARE, WHETHER OR NOT BASED UPON WARRANTY,
022 * CONTRACT, TORT, OR OTHERWISE, WHETHER OR NOT INJURY WAS SUSTAINED BY PERSONS OR
023 * PROPERTY OR OTHERWISE, AND WHETHER OR NOT LOSS WAS SUSTAINED FROM, OR AROSE OUT
024 * OF THE RESULTS OF, OR USE OF, THE SOFTWARE OR SERVICES PROVIDED HEREUNDER.
025 */
026
027package gov.nist.secauto.metaschema.databind.io.json;
028
029import com.fasterxml.jackson.core.JsonFactory;
030import com.fasterxml.jackson.core.JsonGenerator;
031import com.fasterxml.jackson.core.JsonParser;
032
033import edu.umd.cs.findbugs.annotations.NonNull;
034
035public final class JsonFactoryFactory {
036  @NonNull
037  private static final JsonFactory SINGLETON = newJsonFactoryInstance();
038
039  private JsonFactoryFactory() {
040    // disable construction
041  }
042
043  /**
044   * Create a new {@link JsonFactory}.
045   *
046   * @return the factory
047   */
048  @NonNull
049  private static JsonFactory newJsonFactoryInstance() {
050    JsonFactory retval = new JsonFactory();
051    configureJsonFactory(retval);
052    return retval;
053  }
054
055  /**
056   * Get the cached {@link JsonFactory} instance.
057   *
058   * @return the factory
059   */
060  @NonNull
061  public static JsonFactory instance() {
062    return SINGLETON;
063  }
064
065  /**
066   * Apply a standard configuration to the provided JSON {@code factory}.
067   *
068   * @param factory
069   *          the factory to configure
070   */
071  public static void configureJsonFactory(@NonNull JsonFactory factory) {
072    // avoid automatically closing parsing streams not owned by the reader
073    factory.disable(JsonParser.Feature.AUTO_CLOSE_SOURCE);
074    // avoid automatically closing generation streams not owned by the reader
075    factory.disable(JsonGenerator.Feature.AUTO_CLOSE_TARGET);
076  }
077}