content: /*
   * Copyright (C) 2012-2023 52°North Spatial Information Research GmbH
   *
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 as published
   * by the Free Software Foundation.
   *
   * If the program is linked with libraries which are licensed under one of
   * the following licenses, the combination of the program with the linked
   * library is not considered a "derivative work" of the program:
   *
   *     - Apache License, version 2.0
   *     - Apache Software License, version 1.0
   *     - GNU Lesser General Public License, version 3
   *     - Mozilla Public License, versions 1.0, 1.1 and 2.0
   *     - Common Development and Distribution License (CDDL), version 1.0
   *
   * Therefore the distribution of the program linked with libraries licensed
   * under the aforementioned licenses, is permitted by the copyright holders
   * if the distribution is compliant with both the GNU General Public
   * License version 2 and the aforementioned licenses.
   *
   * This program is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
   * Public License for more details.
   */
  package org.n52.sos.ds.hibernate.util.procedure.create;
  
  import java.io.IOException;
  import java.io.InputStream;
  import java.util.Locale;
  
  import org.hibernate.Session;
  import org.n52.series.db.beans.ProcedureEntity;
  import org.n52.shetland.ogc.ows.exception.NoApplicableCodeException;
  import org.n52.shetland.ogc.ows.exception.OwsExceptionReport;
  import org.n52.shetland.ogc.sos.SosProcedureDescription;
  import org.n52.shetland.util.StringHelper;
  import org.n52.sos.ds.hibernate.util.procedure.HibernateProcedureCreationContext;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.google.common.base.Strings;
  
  /**
   * Strategy to create the {@link SosProcedureDescription} from a file.
   */
  public class FileDescriptionCreationStrategy extends XmlStringDescriptionCreationStrategy {
  
      private static final Logger LOGGER = LoggerFactory.getLogger(FileDescriptionCreationStrategy.class);
  
      private static final String STANDARD = "standard";
  
      @Override
      public SosProcedureDescription<?> create(ProcedureEntity p, String descriptionFormat, Locale i18n,
              HibernateProcedureCreationContext ctx, Session s) throws OwsExceptionReport {
          try {
              SosProcedureDescription<?> desc =
                      new SosProcedureDescription<>(readXml(read(p.getDescriptionFile(), ctx), ctx));
              desc.setIdentifier(p.getIdentifier());
              desc.setDescriptionFormat(p.getFormat().getFormat());
              return desc;
          } catch (IOException ex) {
              throw new NoApplicableCodeException().causedBy(ex);
          }
      }
  
      private InputStream getDocumentAsStream(String filename, HibernateProcedureCreationContext ctx) {
          final StringBuilder builder = new StringBuilder();
          // check if filename contains placeholder for configured
          // sensor directory
          String f = filename;
          if (filename.startsWith(STANDARD)) {
              f = filename.replace(STANDARD, "");
              builder.append(ctx.getSensorDirectory());
              builder.append("/");
          }
          builder.append(f);
          LOGGER.debug("Procedure description file name '{}'!", filename);
          return this.getClass().getResourceAsStream(builder.toString());
      }
  
      private String read(String path, HibernateProcedureCreationContext ctx) throws IOException {
          InputStream stream = getDocumentAsStream(path, ctx);
          return StringHelper.convertStreamToString(stream);
      }
  
      @Override
      public boolean apply(ProcedureEntity p) {
          return p != null && !Strings.isNullOrEmpty(p.getDescriptionFile());
      }
  }
  