001// Copyright 2023 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.corelib.pages;
016
017import java.util.Set;
018import java.util.stream.Collectors;
019
020import org.apache.tapestry5.annotations.UnknownActivationContextCheck;
021import org.apache.tapestry5.annotations.WhitelistAccessOnly;
022import org.apache.tapestry5.internal.services.ComponentDependencyGraphvizGenerator;
023import org.apache.tapestry5.internal.services.ComponentDependencyRegistry;
024import org.apache.tapestry5.ioc.annotations.Inject;
025
026/**
027 * Shows graph showing the dependencies of all already loaded pages and its compnoents, mixins and base classes.
028 */
029@UnknownActivationContextCheck(false)
030@WhitelistAccessOnly
031public class PageDependencyGraph
032{
033
034    @Inject
035    private ComponentDependencyGraphvizGenerator componentDependencyGraphvizGenerator;
036    
037    @Inject
038    private ComponentDependencyRegistry componentDependencyRegistry;
039    
040    public String getGraphvizValue()
041    {
042        final Set<String> pages = componentDependencyRegistry.getClassNames().stream()
043                .filter(c -> c.contains(".pages"))
044                .collect(Collectors.toSet());
045        return componentDependencyGraphvizGenerator.generate(pages.toArray(new String[pages.size()]));
046    }
047    
048}