//
// ========================================================================
// Copyright (c) 1995-2020 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under
// the terms of the Eclipse Public License 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0
//
// This Source Code may also be made available under the following
// Secondary Licenses when the conditions for such availability set
// forth in the Eclipse Public License, v. 2.0 are satisfied:
// the Apache License v2.0 which is available at
// https://www.apache.org/licenses/LICENSE-2.0
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//

package org.eclipse.jetty.server;

import java.util.Set;

import org.eclipse.jetty.util.Attributes;
import org.eclipse.jetty.util.AttributesMap;

An implementation of Attributes that supports the standard async attributes. This implementation delegates to an internal AttributesMap instance, which can optionally be wrapped with a AsyncAttributes instance. This allows async attributes to be applied underneath any other attribute wrappers. /**
 * An implementation of Attributes that supports the standard async attributes.
 *
 * This implementation delegates to an internal {@link AttributesMap} instance, which
 * can optionally be wrapped with a {@link AsyncAttributes} instance. This allows async
 * attributes to be applied underneath any other attribute wrappers.
 */
public class ServletAttributes implements Attributes
{
    private final Attributes _attributes = new AttributesMap();
    private AsyncAttributes _asyncAttributes;

    public void setAsyncAttributes(String requestURI, String contextPath, String pathInContext, ServletPathMapping servletPathMapping, String queryString)
    {
        _asyncAttributes = new AsyncAttributes(_attributes, requestURI, contextPath, pathInContext, servletPathMapping, queryString);
    }

    private Attributes getAttributes()
    {
        return (_asyncAttributes == null) ? _attributes : _asyncAttributes;
    }

    @Override
    public void removeAttribute(String name)
    {
        getAttributes().removeAttribute(name);
    }

    @Override
    public void setAttribute(String name, Object attribute)
    {
        getAttributes().setAttribute(name, attribute);
    }

    @Override
    public Object getAttribute(String name)
    {
        return getAttributes().getAttribute(name);
    }

    @Override
    public Set<String> getAttributeNameSet()
    {
        return getAttributes().getAttributeNameSet();
    }

    @Override
    public void clearAttributes()
    {
        getAttributes().clearAttributes();
        _asyncAttributes = null;
    }
}