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// 
// ========================================================================
// Copyright (c) 1995-2022 Mort Bay Consulting Pty Ltd and others.
// ------------------------------------------------------------------------
// 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.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.eclipse.jetty.util.Attributes;

/**
 *  An Attributes implementation that holds it's values in an immutable {@link ContainerLifeCycle}
 *
 * @deprecated The Eclipse Jetty and Apache Felix Http Jetty packages are no longer supported.
 */
@Deprecated(since = "2021-05-27")
public class AttributeContainerMap extends ContainerLifeCycle implements Attributes {

    private final Map _map = new HashMap<>();

    @Override
    public synchronized void setAttribute(String name, Object attribute) {
        Object old = _map.put(name, attribute);
        updateBean(old, attribute);
    }

    @Override
    public synchronized void removeAttribute(String name) {
        Object removed = _map.remove(name);
        if (removed != null)
            removeBean(removed);
    }

    @Override
    public synchronized Object getAttribute(String name) {
        return _map.get(name);
    }

    @Override
    public synchronized Enumeration getAttributeNames() {
        return Collections.enumeration(_map.keySet());
    }

    @Override
    public Set getAttributeNameSet() {
        return _map.keySet();
    }

    @Override
    public synchronized void clearAttributes() {
        _map.clear();
        this.removeBeans();
    }

    @Override
    public void dump(Appendable out, String indent) throws IOException {
        Dumpable.dumpObject(out, this);
        Dumpable.dumpMapEntries(out, indent, _map, true);
    }

    @Override
    public String toString() {
        return String.format("%s@%x{size=%d}", this.getClass().getSimpleName(), hashCode(), _map.size());
    }
}