content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 org.apache.camel.processor.validation;
  
  import java.io.InputStream;
  import java.io.Reader;
  
  import org.w3c.dom.ls.LSInput;
  import org.w3c.dom.ls.LSResourceResolver;
  
  import org.xml.sax.InputSource;
  
  import org.apache.xml.resolver.tools.CatalogResolver;
  
  public class CatalogLSResourceResolver implements LSResourceResolver {
  
      CatalogResolver catalogResolver;
  
      public CatalogLSResourceResolver() {
      }
  
      public CatalogLSResourceResolver(CatalogResolver catalogResolver) {
          this.catalogResolver = catalogResolver;
      }
  
      public CatalogResolver getCatalogResolver() {
          return catalogResolver;
      }
  
      public void setCatalogResolver(CatalogResolver catalogResolver) {
          this.catalogResolver = catalogResolver;
      }
  
      @Override
      public LSInput resolveResource(String type, String namespaceURI, String publicId, String systemId, String baseURI) {
          return new LSInputSource(namespaceURI, publicId, systemId, baseURI);
      }
  
      class LSInputSource implements LSInput {
          private InputSource inputSource;
          private String publicId;
          private String systemId;
          private String baseURI;
  
          LSInputSource(String namespaceURI, String publicId, String systemId, String baseURI) {
              if (publicId == null) {
                  publicId = namespaceURI;
              }
  
              this.publicId = publicId;
              this.systemId = systemId;
              this.baseURI = baseURI;
  
              if (catalogResolver == null) {
                  throw new IllegalStateException("catalogResolver must be provided");
              }
  
              this.inputSource = catalogResolver.resolveEntity(publicId, systemId);
          }
  
          @Override
          public Reader getCharacterStream() {
              return null;
          }
  
          @Override
          public void setCharacterStream(Reader characterStream) {
              // noop
          }
  
          @Override
          public InputStream getByteStream() {
              return inputSource != null ? inputSource.getByteStream() : null;
          }
  
          @Override
          public void setByteStream(InputStream byteStream) {
              if (inputSource != null) {
                  inputSource.setByteStream(byteStream);
              }
          }
  
          @Override
          public String getStringData() {
              return null;
          }
  
          @Override
          public void setStringData(String stringData) {
              // noop
          }
  
          @Override
          public String getSystemId() {
              if (inputSource != null) {
                  return inputSource.getSystemId();
              }
  
              return systemId;
          }
  
          @Override
          public void setSystemId(String systemId) {
              if (inputSource != null) {
                  inputSource.setSystemId(systemId);
              }
          }
  
          @Override
          public String getPublicId() {
              if (inputSource != null) {
                  return inputSource.getPublicId();
              }
  
              return publicId;
          }
  
          @Override
          public void setPublicId(String publicId) {
              if (inputSource != null) {
                  inputSource.setPublicId(publicId);
              } else {
                  this.publicId = publicId;
              }
          }
  
          @Override
          public String getBaseURI() {
              return baseURI;
          }
  
          @Override
          public void setBaseURI(String baseURI) {
              // noop
          }
  
          @Override
          public String getEncoding() {
              if (inputSource != null) {
                  return inputSource.getEncoding();
              }
  
              return null;
          }
  
          @Override
          public void setEncoding(String encoding) {
              if (inputSource != null) {
                  inputSource.setEncoding(encoding);
              }
          }
  
          @Override
          public boolean getCertifiedText() {
              return true;
          }
  
          @Override
          public void setCertifiedText(boolean certifiedText) {
              // noop
          }
      }
  }
  