Package org.apache.wicket

Source Code of org.apache.wicket.SystemMapper$ParentFolderPlaceholderProvider

/*
* 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.wicket;

import org.apache.wicket.core.request.mapper.BookmarkableMapper;
import org.apache.wicket.core.request.mapper.BufferedResponseMapper;
import org.apache.wicket.core.request.mapper.HomePageMapper;
import org.apache.wicket.core.request.mapper.PageInstanceMapper;
import org.apache.wicket.core.request.mapper.ResourceReferenceMapper;
import org.apache.wicket.request.component.IRequestablePage;
import org.apache.wicket.request.mapper.CompoundRequestMapper;
import org.apache.wicket.request.mapper.parameter.PageParametersEncoder;
import org.apache.wicket.request.resource.caching.IResourceCachingStrategy;
import org.apache.wicket.util.IProvider;

/**
* Mapper that encapsulates mappers that are necessary for Wicket to function.
*
* @author igor.vaynberg
*
*/
public class SystemMapper extends CompoundRequestMapper
{
  private final Application application;

  /**
   * Constructor
   *
   * @param application
   */
  public SystemMapper(final Application application)
  {
    this.application = application;
    add(new PageInstanceMapper());
    add(new BookmarkableMapper());
    add(new HomePageMapper(new HomePageProvider(application)));
    add(new ResourceReferenceMapper(new PageParametersEncoder(),
      new ParentFolderPlaceholderProvider(application), getResourceCachingStrategy()));
    add(new UrlResourceReferenceMapper());
    add(RestartResponseAtInterceptPageException.MAPPER);
    add(new BufferedResponseMapper());
  }

  private IProvider<IResourceCachingStrategy> getResourceCachingStrategy()
  {
    return new IProvider<IResourceCachingStrategy>()
    {
      @Override
      public IResourceCachingStrategy get()
      {
        return application.getResourceSettings().getCachingStrategy();
      }
    };
  }

  private static class ParentFolderPlaceholderProvider implements IProvider<String>
  {
    private final Application application;

    public ParentFolderPlaceholderProvider(Application application)
    {
      this.application = application;
    }

    @Override
    public String get()
    {
      return application.getResourceSettings().getParentFolderPlaceholder();
    }
  }

  private static class HomePageProvider<C extends IRequestablePage> implements IProvider<Class<C>>
  {
    private final Application application;

    private HomePageProvider(final Application application)
    {
      this.application = application;
    }

    @Override
    public Class<C> get()
    {
      return (Class<C>) application.getHomePage();
    }
  }
}
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