//
//  ========================================================================
//  Copyright (c) 1995-2019 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.util.component;

import java.io.IOException;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;

public class DumpableCollection implements Dumpable
{
    private final String _name;
    private final Collection<?> _collection;

    public DumpableCollection(String name,Collection<?> collection)
    {
        _name=name;
        _collection=collection;
    }

    public static DumpableCollection fromArray(String name, Object[] array)
    {
        return new DumpableCollection(name,array==null?Collections.emptyList():Arrays.asList(array));
    }

    public static DumpableCollection from(String name, Object... items)
    {
        return new DumpableCollection(name,items==null?Collections.emptyList():Arrays.asList(items));
    }

    @Override
    public String dump()
    {
        return Dumpable.dump(this);
    }

    @Override
    public void dump(Appendable out, String indent) throws IOException
    {
        Object[] array = _collection.toArray();
        Dumpable.dumpObjects(out,indent,_name + " size="+array.length, array);
    }
}
