com.phloc.schematron.svrl.SVRLLocationBeautifierRegistry Maven / Gradle / Ivy

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Library for validating XML documents with Schematron

There is a newer version: 2.7.1

/**
 * Copyright (C) 2014 phloc systems
 * http://www.phloc.com
 * office[at]phloc[dot]com
 *
 * 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 com.phloc.schematron.svrl;

import java.util.List;

import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.annotation.concurrent.NotThreadSafe;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.phloc.commons.GlobalDebug;
import com.phloc.commons.annotations.PresentForCodeCoverage;
import com.phloc.commons.lang.ServiceLoaderUtils;

/**
 * A central registry for all {@link ISVRLLocationBeautifierSPI} instances.
 * 
 * @author PEPPOL.AT, BRZ, Philip Helger
 */
@NotThreadSafe
public final class SVRLLocationBeautifierRegistry
{
  private static final Logger s_aLogger = LoggerFactory.getLogger (SVRLLocationBeautifierRegistry.class);
  private static final List  s_aList = ServiceLoaderUtils.getAllSPIImplementations (ISVRLLocationBeautifierSPI.class);

  @PresentForCodeCoverage
  @SuppressWarnings ("unused")
  private static final SVRLLocationBeautifierRegistry s_aInstance = new SVRLLocationBeautifierRegistry ();

  private SVRLLocationBeautifierRegistry ()
  {}

  /**
   * Get the beautified location for the given namespace and local name.
   * 
   * @param sNamespaceURI
   *        The namespace URI
   * @param sLocalName
   *        The element local name
   * @return null if no beautification is available
   */
  @Nullable
  public static String getBeautifiedLocation (@Nonnull final String sNamespaceURI, @Nonnull final String sLocalName)
  {
    for (final ISVRLLocationBeautifierSPI aBeautifier : s_aList)
    {
      final String sBeautified = aBeautifier.getReplacementText (sNamespaceURI, sLocalName);
      if (sBeautified != null)
        return sBeautified;
    }
    if (GlobalDebug.isDebugMode ())
      s_aLogger.warn ("Unsupported elements for beautification: " + sNamespaceURI + " -- " + sLocalName);
    return null;
  }
}