/*

 * This file is part of libbluray

 * Copyright (C) 2010  William Hahne

 *

 * This library is free software; you can redistribute it and/or

 * modify it under the terms of the GNU Lesser General Public

 * License as published by the Free Software Foundation; either

 * version 2.1 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public

 * License along with this library. If not, see

 * <http://www.gnu.org/licenses/>.

 */

package javax.tv.service.selection;

import java.security.Permission;

import javax.tv.locator.Locator;

import java.io.Serializable;

public final class SelectPermission extends Permission implements Serializable {

    public SelectPermission(Locator locator, String actions) {

        super(locator == null ? "*" : locator.toExternalForm());

        if (actions == null)

            throw new NullPointerException();

        this.locator = locator == null ? "*" : locator.toExternalForm();

        this.actions = actions;

    }

    public SelectPermission(String locator, String actions) {

        super(locator == null ? "*" : locator);

        if (actions == null)

            throw new NullPointerException();

        this.locator = locator == null ? "*" : locator;

        this.actions = actions;

    }

    public boolean implies(Permission perm) {

        if (!(perm instanceof SelectPermission))

            return false;

        SelectPermission sperm = (SelectPermission) perm;

        if (!sperm.actions.equals(actions) && !actions.equals("*"))

            return false;

        if (!sperm.locator.equals(locator) && !locator.equals("*"))

            return false;

        return true;

    }

    public boolean equals(Object obj) {

        if (!(obj instanceof SelectPermission))

            return false;

        SelectPermission other = (SelectPermission) obj;

        if (!actions.equals(other.actions))

            return false;

        if (!locator.equals(other.locator))

            return false;

        return true;

    }

    public int hashCode() {

        final int prime = 31;

        int result = 1;

        result = prime * result + ((actions == null) ? 0 : actions.hashCode());

        result = prime * result + ((locator == null) ? 0 : locator.hashCode());

        return result;

    }

    public String getActions() {

        return actions;

    }

    private String actions;

    private String locator;

    private static final long serialVersionUID = 3418810478648506665L;

}