001/* 
002    Licensed to the Apache Software Foundation (ASF) under one
003    or more contributor license agreements.  See the NOTICE file
004    distributed with this work for additional information
005    regarding copyright ownership.  The ASF licenses this file
006    to you under the Apache License, Version 2.0 (the
007    "License"); you may not use this file except in compliance
008    with the License.  You may obtain a copy of the License at
009
010       http://www.apache.org/licenses/LICENSE-2.0
011
012    Unless required by applicable law or agreed to in writing,
013    software distributed under the License is distributed on an
014    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015    KIND, either express or implied.  See the License for the
016    specific language governing permissions and limitations
017    under the License.  
018 */
019package org.apache.wiki.tags;
020
021import org.apache.wiki.api.core.Context;
022import org.apache.wiki.ui.admin.AdminBean;
023import org.apache.wiki.ui.admin.AdminBeanManager;
024
025import java.util.ArrayList;
026import java.util.Collection;
027import java.util.stream.Collectors;
028
029/**
030 *  Provides an iterator for all AdminBeans of a given type.
031 *
032 */
033public class AdminBeanIteratorTag extends IteratorTag {
034    
035    private static final long serialVersionUID = 1L;
036
037    private int m_type;
038
039    /**
040     *  Set the type of the bean.
041     *  
042     *  @param type Type to set
043     */
044    public void setType( final String type ) {
045        if (m_wikiContext == null) {
046            m_wikiContext = Context.findContext(pageContext);
047        }
048        m_type = m_wikiContext.getEngine().getManager( AdminBeanManager.class ).getTypeFromString( type );
049    }
050
051    /**
052     *  {@inheritDoc}
053     */
054    @Override
055    public void resetIterator() {
056        final AdminBeanManager mgr = m_wikiContext.getEngine().getManager( AdminBeanManager.class );
057        final Collection< AdminBean > beans = mgr.getAllBeans();
058        final ArrayList< AdminBean > typedBeans = beans.stream().filter(ab -> ab.getType() == m_type).collect(Collectors.toCollection(ArrayList::new));
059
060        setList( typedBeans );
061    }
062
063}