io.uhndata.cards.ResourceIterator Maven / Gradle / Ivy

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/*
 * 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 io.uhndata.cards;

import java.util.Iterator;

import javax.jcr.NodeIterator;
import javax.jcr.RepositoryException;

import org.apache.sling.api.resource.Resource;
import org.apache.sling.api.resource.ResourceResolver;

public class ResourceIterator implements Iterator
{
    private ResourceResolver resourceResolver;
    private NodeIterator nodeIterator;

    public ResourceIterator(ResourceResolver rr, NodeIterator nodes)
    {
        this.resourceResolver = rr;
        this.nodeIterator = nodes;
    }

    @Override
    public boolean hasNext()
    {
        return this.nodeIterator.hasNext();
    }

    @Override
    public Resource next()
    {
        try {
            return this.resourceResolver.getResource(this.nodeIterator.nextNode().getPath());
        } catch (RepositoryException e) {
            return null;
        }
    }

    @Override
    public void remove()
    {
        throw new UnsupportedOperationException();
    }
}