trunk/core/src/main/java/org/apache/struts2/views/xslt/CollectionAdapter.java

/*
 * $Id$
 *
 * Copyright 2006 The Apache Software Foundation.
 *
 * Licensed 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.struts2.views.xslt;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.w3c.dom.Node;


/**
 */
public class CollectionAdapter extends AbstractAdapterElement {

    private Log log = LogFactory.getLog(this.getClass());

	public CollectionAdapter() { }

	public CollectionAdapter(AdapterFactory rootAdapterFactory, AdapterNode parent, String propertyName, Object value) {
        setContext(rootAdapterFactory, parent, propertyName, value);
    }

    protected List<Node> buildChildAdapters() {
        Collection values = (Collection) getPropertyValue();
        List<Node> children = new ArrayList<Node>(values.size());

        for (Object value : values) {
            Node childAdapter = getAdapterFactory().adaptNode(this, "item", value);
            if (childAdapter != null)
                children.add(childAdapter);

            if (log.isDebugEnabled()) {
                log.debug(this + " adding adapter: " + childAdapter);
            }
        }

        return children;
    }
}