/*
* 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.isis.viewer.wicket.viewer.registries.pages;
import java.util.Map;
import com.google.common.collect.Maps;
import com.google.inject.Inject;
import com.google.inject.Singleton;
import org.apache.wicket.Page;
import org.apache.isis.viewer.wicket.model.models.PageType;
import org.apache.isis.viewer.wicket.ui.pages.PageClassList;
import org.apache.isis.viewer.wicket.ui.pages.PageClassRegistry;
import org.apache.isis.viewer.wicket.ui.pages.PageClassRegistrySpi;
/**
* Default implementation of {@link PageClassRegistry}; just delegates to an
* underlying {@link PageClassList}.
*/
@Singleton
public class PageClassRegistryDefault implements PageClassRegistry, PageClassRegistrySpi {
private static final long serialVersionUID = 1L;
private final Map<PageType, Class<? extends Page>> pagesByType = Maps.newHashMap();
/**
* {@link Inject}ed in {@link #PageClassRegistryDefault(PageClassList)
* constructor}.
*/
@SuppressWarnings("unused")
private final PageClassList pageClassList;
@com.google.inject.Inject
public PageClassRegistryDefault(final PageClassList pageClassList) {
this.pageClassList = pageClassList;
pageClassList.registerPages(this);
ensureAllPageTypesRegistered();
}
private void ensureAllPageTypesRegistered() {
for (final PageType pageType : PageType.values()) {
if (getPageClass(pageType) == null) {
throw new IllegalStateException("No page registered for " + pageType);
}
}
}
// /////////////////////////////////////////////////////////
// API
// /////////////////////////////////////////////////////////
@Override
public final Class<? extends Page> getPageClass(final PageType pageType) {
return pagesByType.get(pageType);
}
// /////////////////////////////////////////////////////////
// API
// /////////////////////////////////////////////////////////
@Override
public final void registerPage(final PageType pageType, final Class<? extends Page> pageClass) {
pagesByType.put(pageType, pageClass);
}
}