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DigiDoc4j is a Java library for digitally signing documents and creating digital signature containers of signed documents

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/* DigiDoc4J library
 *
 * This software is released under either the GNU Library General Public
 * License (see LICENSE.LGPL).
 *
 * Note that the only valid version of the LGPL license as far as this
 * project is concerned is the original GNU Library General Public License
 * Version 2.1, February 1999
 */

package org.digidoc4j.impl;

import eu.europa.esig.dss.spi.client.http.DataLoader;
import org.digidoc4j.Configuration;
import org.digidoc4j.Constant;
import org.digidoc4j.DataLoaderFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Manages the creation of data loaders for getting TimeStamp responses.
 */
public class TspDataLoaderFactory implements DataLoaderFactory {

  private static final Logger logger = LoggerFactory.getLogger(TspDataLoaderFactory.class);
  private final Configuration configuration;
  private final String userAgent;

  public TspDataLoaderFactory(Configuration configuration) {
    this(configuration, Constant.USER_AGENT_STRING);
  }

  public TspDataLoaderFactory(Configuration configuration, String userAgent) {
    this.configuration = configuration;
    this.userAgent = userAgent;
  }

  @Override
  public DataLoader create() {
    if (configuration.getTspDataLoaderFactory() == null) {
      return createDataLoader();
    } else {
      logger.debug("Using custom TSP data loader factory provided by the configuration");
      return configuration.getTspDataLoaderFactory().create();
    }
  }

  private DataLoader createDataLoader() {
    logger.debug("Creating TSP data loader");
    SkDataLoader dataLoader = new SkTimestampDataLoader(configuration);
    dataLoader.setUserAgent(userAgent);
    return dataLoader;
  }
}