HostLocation.java

/*
 * This file is part of DRBD Management Console by LINBIT HA-Solutions GmbH
 * written by Rasto Levrinc.
 *
 * Copyright (C) 2009-2010, LINBIT HA-Solutions GmbH.
 * Copyright (C) 2009-2010, Rastislav Levrinc
 *
 * DRBD Management Console is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as published
 * by the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * DRBD Management Console 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with drbd; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package lcmc.crm.domain;

/**
 * This class holds data of host locations.
 */
public final class HostLocation {
    private final String score;
    /** Operation, eq. "eq", "ne". */
    private final String operator;
    private final String value;
    private final String role;

    public HostLocation(final String score, final String operator, final String value, final String role) {
        this.score = score;
        this.operator = operator;
        this.value = value;
        this.role = role;
    }

    public String getScore() {
        return score;
    }

    public String getOperation() {
        return operator;
    }

    public String getValue() {
        return value;
    }

    public String getRole() {
        return role;
    }

    @Override
    public boolean equals(final Object other) {
        if (other == null) {
            return (score == null || "".equals(score))
                   && (operator == null || "".equals(operator))
                   && (role == null || "".equals(role));
        }
        final HostLocation otherHL = (HostLocation) other;
        if (score == null) {
            if (otherHL.getScore() != null && !"".equals(otherHL.getScore())) {
                return false;
            }
        } else {
            if (!score.equals(otherHL.getScore())) {
                return false;
            }
        }
        if (role == null) {
            if (otherHL.getRole() != null && !"".equals(otherHL.getRole())) {
                return false;
            }
        } else {
            if (!role.equals(otherHL.getRole())) {
                return false;
            }
        }
        if (operator == null || "".equals(operator) || "eq".equals(operator)) {
            return otherHL.getOperation() == null
                   || "".equals(otherHL.getOperation())
                   || "eq".equals(otherHL.getOperation());
        } else {
            return operator.equals(otherHL.getOperation());
        }
    }

    @Override
    public int hashCode() {
        int hash = 7;
        hash = 97 * hash + (this.score != null ? this.score.hashCode() : 0);
        hash = 97 * hash + (this.operator != null ? this.operator.hashCode() : 0);
        hash = 97 * hash + (this.role != null ? this.role.hashCode() : 0);
        return hash;
    }
}