/*******************************************************************************
* This file is part of OpenNMS(R).
*
* Copyright (C) 2009-2011 The OpenNMS Group, Inc.
* OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
*
* OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
*
* OpenNMS(R) 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 3 of the License,
* or (at your option) any later version.
*
* OpenNMS(R) 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 OpenNMS(R). If not, see:
* http://www.gnu.org/licenses/
*
* For more information contact:
* OpenNMS(R) Licensing <license@opennms.org>
* http://www.opennms.org/
* http://www.opennms.com/
*******************************************************************************/
package org.opennms.web.event.filter;
import java.util.Arrays;
import org.apache.commons.lang.builder.ToStringBuilder;
import org.opennms.web.event.AcknowledgeType;
import org.opennms.web.event.SortStyle;
import org.opennms.web.filter.Filter;
/**
* <p>EventCriteria class.</p>
*
* @author ranger
* @version $Id: $
* @since 1.8.1
*/
public class EventCriteria {
public static interface EventCriteriaVisitor<E extends Exception>{
public void visitAckType(AcknowledgeType ackType) throws E;
public void visitFilter(Filter filter) throws E;
public void visitSortStyle(SortStyle sortStyle) throws E;
public void visitLimit(int limit, int offset) throws E;
}
public static class BaseEventCriteriaVisitor<E extends Exception> implements EventCriteriaVisitor<E>{
public void visitAckType(AcknowledgeType ackType) throws E { }
public void visitFilter(Filter filter) throws E { }
public void visitLimit(int limit, int offset) throws E { }
public void visitSortStyle(SortStyle sortStyle) throws E { }
}
Filter[] m_filters = null;
SortStyle m_sortStyle = SortStyle.TIME;
AcknowledgeType m_ackType = AcknowledgeType.UNACKNOWLEDGED;
int m_offset = -1;
int m_limit = -1;
/**
* <p>Constructor for EventCriteria.</p>
*
* @param filters a org$opennms$web$filter$Filter object.
*/
public EventCriteria(Filter... filters){
this(filters, null, null, -1, -1);
}
/**
* <p>Constructor for EventCriteria.</p>
*
* @param ackType a {@link org.opennms.web.event.AcknowledgeType} object.
* @param filters an array of org$opennms$web$filter$Filter objects.
*/
public EventCriteria(AcknowledgeType ackType, Filter[] filters) {
this(filters, null, ackType, -1, -1);
}
/**
* <p>Constructor for EventCriteria.</p>
*
* @param filters an array of org$opennms$web$filter$Filter objects.
* @param sortStyle a {@link org.opennms.web.event.SortStyle} object.
* @param ackType a {@link org.opennms.web.event.AcknowledgeType} object.
* @param limit a int.
* @param offset a int.
*/
public EventCriteria(Filter[] filters, SortStyle sortStyle, AcknowledgeType ackType, int limit, int offset){
m_filters = filters;
m_sortStyle = sortStyle;
m_ackType = ackType;
m_limit = limit;
m_offset = offset;
}
/**
* <p>visit</p>
*
* @param visitor a {@link org.opennms.web.event.filter.EventCriteria.EventCriteriaVisitor} object.
* @param <E> a E object.
* @throws E if any.
*/
public <E extends Exception> void visit(EventCriteriaVisitor<E> visitor) throws E{
if(m_ackType != null){
visitor.visitAckType(m_ackType);
}
for(Filter filter : m_filters){
visitor.visitFilter(filter);
}
if(m_sortStyle != null){
visitor.visitSortStyle(m_sortStyle);
}
if(m_limit > 0 && m_offset > -1){
visitor.visitLimit(m_limit, m_offset);
}
}
/** {@inheritDoc} */
@Override
public String toString() {
return new ToStringBuilder(this)
.append("filters", Arrays.asList(m_filters))
.append("sortStyle", m_sortStyle)
.append("ackType", m_ackType)
.append("limit", m_limit)
.append("offset", m_offset)
.toString();
}
}