src/main/java/com/intellij/struts2/Struts2ResourceProvider.java

/*
 * Copyright 2019 The authors
 * 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.intellij.struts2;

import com.intellij.javaee.ResourceRegistrar;
import com.intellij.javaee.StandardResourceProvider;
import org.jetbrains.annotations.NonNls;

/**
 * Provides "External resources" (DTDs).
 *
 * @author Dmitry Avdeev
 */
final class Struts2ResourceProvider implements StandardResourceProvider {
  @NonNls
  private static final String DTD_PATH = "/resources/dtds/";

  @Override
  public void registerResources(final ResourceRegistrar registrar) {
    addDTDResource(StrutsConstants.STRUTS_2_0_DTD_URI,
                   StrutsConstants.STRUTS_2_0_DTD_ID,
                   "struts-2.0.dtd", registrar);

    addDTDResource(StrutsConstants.STRUTS_2_1_DTD_URI,
                   StrutsConstants.STRUTS_2_1_DTD_ID,
                   "struts-2.1.dtd", registrar);

    addDTDResource(StrutsConstants.STRUTS_2_1_7_DTD_URI,
                   StrutsConstants.STRUTS_2_1_7_DTD_ID,
                   "struts-2.1.7.dtd", registrar);

    addDTDResource(StrutsConstants.STRUTS_2_3_DTD_URI,
                   StrutsConstants.STRUTS_2_3_DTD_ID,
                   "struts-2.3.dtd", registrar);

    addDTDResource(StrutsConstants.STRUTS_2_5_DTD_URI,
                   StrutsConstants.STRUTS_2_5_DTD_ID,
                   "struts-2.5.dtd", registrar);

    addDTDResource(StrutsConstants.STRUTS_6_0_DTD_URI,
                   StrutsConstants.STRUTS_6_0_DTD_ID,
                   "struts-6.0.dtd", registrar);


    addDTDResource(StrutsConstants.VALIDATOR_1_00_DTD_URI,
                   StrutsConstants.VALIDATOR_1_00_DTD_ID,
                   "xwork-validator-1.0.dtd", registrar);
    addDTDResource(StrutsConstants.VALIDATOR_1_00_STRUTS_DTD_URI,
                   StrutsConstants.VALIDATOR_1_00_STRUTS_DTD_ID,
                   "xwork-validator-struts-1.0.dtd", registrar);

    addDTDResource(StrutsConstants.VALIDATOR_1_02_DTD_URI,
                   StrutsConstants.VALIDATOR_1_02_DTD_ID,
                   "xwork-validator-1.0.2.dtd", registrar);
    addDTDResource(StrutsConstants.VALIDATOR_1_02_STRUTS_DTD_URI,
                   StrutsConstants.VALIDATOR_1_02_STRUTS_DTD_ID,
                   "xwork-validator-struts-1.0.2.dtd", registrar);

    addDTDResource(StrutsConstants.VALIDATOR_1_03_DTD_URI,
                   StrutsConstants.VALIDATOR_1_03_DTD_ID,
                   "xwork-validator-1.0.3.dtd", registrar);

    addDTDResource(StrutsConstants.VALIDATOR_CONFIG_DTD_URI,
                   StrutsConstants.VALIDATOR_CONFIG_DTD_ID,
                   "xwork-validator-config-1.0.dtd", registrar);
    addDTDResource(StrutsConstants.VALIDATOR_CONFIG_STRUTS_DTD_URI,
                   StrutsConstants.VALIDATOR_CONFIG_STRUTS_DTD_ID,
                   "xwork-validator-config-struts-1.0.dtd", registrar);
    addDTDResource(StrutsConstants.VALIDATOR_DEFINITION_DTD_URI,
                   StrutsConstants.VALIDATOR_DEFINITION_DTD_ID,
                   "xwork-validator-definition-1.0.dtd", registrar);
  }

  /**
   * Adds a DTD resource from local DTD resource path.
   *
   * @param uri       Resource URI.
   * @param id        Resource ID.
   * @param localFile DTD filename.
   * @param registrar Resource registrar.
   */
  private static void addDTDResource(@NonNls final String uri,
                                     @NonNls final String id,
                                     @NonNls final String localFile,
                                     final ResourceRegistrar registrar) {
    registrar.addStdResource(uri, DTD_PATH + localFile, Struts2ResourceProvider.class);
    registrar.addStdResource(id, DTD_PATH + localFile, Struts2ResourceProvider.class);
  }

}