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//
// ========================================================================
// Copyright (c) 1995-2021 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// 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.security;

import java.util.Set;
import java.util.concurrent.CopyOnWriteArraySet;

/**
 * RoleInfo
 *
 * Badly named class that holds the role and user data constraint info for a
 * path/http method combination, extracted and combined from security
 * constraints.
 *
 * @version $Rev: 4793 $ $Date: 2009-03-19 00:00:01 +0100 (Thu, 19 Mar 2009) $
 */
public class RoleInfo
{
    private boolean _isAnyAuth;
    private boolean _isAnyRole;
    private boolean _checked;
    private boolean _forbidden;
    private UserDataConstraint _userDataConstraint;

    /**
     * List of permitted roles
     */
    private final Set _roles = new CopyOnWriteArraySet<>();

    public RoleInfo()
    {
    }

    public boolean isChecked()
    {
        return _checked;
    }

    public void setChecked(boolean checked)
    {
        this._checked = checked;
        if (!checked)
        {
            _forbidden = false;
            _roles.clear();
            _isAnyRole = false;
            _isAnyAuth = false;
        }
    }

    public boolean isForbidden()
    {
        return _forbidden;
    }

    public void setForbidden(boolean forbidden)
    {
        this._forbidden = forbidden;
        if (forbidden)
        {
            _checked = true;
            _userDataConstraint = null;
            _isAnyRole = false;
            _isAnyAuth = false;
            _roles.clear();
        }
    }

    public boolean isAnyRole()
    {
        return _isAnyRole;
    }

    public void setAnyRole(boolean anyRole)
    {
        this._isAnyRole = anyRole;
        if (anyRole)
            _checked = true;
    }

    public boolean isAnyAuth()
    {
        return _isAnyAuth;
    }

    public void setAnyAuth(boolean anyAuth)
    {
        this._isAnyAuth = anyAuth;
        if (anyAuth)
            _checked = true;
    }

    public UserDataConstraint getUserDataConstraint()
    {
        return _userDataConstraint;
    }

    public void setUserDataConstraint(UserDataConstraint userDataConstraint)
    {
        if (userDataConstraint == null)
            throw new NullPointerException("Null UserDataConstraint");
        if (this._userDataConstraint == null)
        {

            this._userDataConstraint = userDataConstraint;
        }
        else
        {
            this._userDataConstraint = this._userDataConstraint.combine(userDataConstraint);
        }
    }

    public Set getRoles()
    {
        return _roles;
    }

    public void addRole(String role)
    {
        _roles.add(role);
    }

    public void combine(RoleInfo other)
    {
        if (other._forbidden)
            setForbidden(true);
        else if (other._checked)
        {
            setChecked(true);
            if (other._isAnyAuth)
                setAnyAuth(true);
            if (other._isAnyRole)
                setAnyRole(true);

            _roles.addAll(other._roles);
        }
        setUserDataConstraint(other._userDataConstraint);
    }

    @Override
    public String toString()
    {
        return String.format("RoleInfo@%x{%s%s%s%s,%s}",
            hashCode(),
            (_forbidden ? "Forbidden," : ""),
            (_checked ? "Checked," : ""),
            (_isAnyAuth ? "AnyAuth," : ""),
            (_isAnyRole ? "*" : _roles),
            _userDataConstraint);
    }
}