/*******************************************************************************
*Copyright (c) 2009 Eucalyptus Systems, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
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* 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
* Please contact Eucalyptus Systems, Inc., 130 Castilian
* Dr., Goleta, CA 93101 USA or visit <http://www.eucalyptus.com/licenses/>
* if you need additional information or have any questions.
*
* This file may incorporate work covered under the following copyright and
* permission notice:
*
* Software License Agreement (BSD License)
*
* Copyright (c) 2008, Regents of the University of California
* All rights reserved.
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* IT MAY INFORM DR. RICH WOLSKI AT THE UNIVERSITY OF CALIFORNIA, SANTA
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*******************************************************************************/
/*
*
* Author: Neil Soman neil@eucalyptus.com
*/
package com.eucalyptus.blockstorage.san.common;
import java.util.List;
import org.apache.log4j.Logger;
import com.eucalyptus.blockstorage.san.common.entities.SANInfo;
import com.google.common.collect.Lists;
public class Paths {
private static final Logger LOG = Logger.getLogger(Paths.class);
protected String currentPathsProperty = null;
protected List<SANInfo.Path> paths = Lists.newArrayList();
public synchronized int size() {
return paths.size();
}
public synchronized Paths update(String value) {
if (value != null && !value.equals(this.currentPathsProperty)) {
try {
List<SANInfo.Path> newPaths = SANInfo.parsePaths(value);
this.paths.clear();
this.paths.addAll(newPaths);
this.currentPathsProperty = value;
} catch (Exception e) {
LOG.error(e, e);
}
}
return this;
}
public synchronized String getPathsForVolumeProperty() {
StringBuilder sb = new StringBuilder();
for (SANInfo.Path path : this.paths) {
if (sb.length() > 0) {
sb.append(',');
}
sb.append(path.iface).append(',').append(path.ip).append(',').append(path.iqn);
}
return sb.toString();
}
public synchronized String getPathsForVolumeProperty(String iqn) {
StringBuilder sb = new StringBuilder();
for (SANInfo.Path path : this.paths) {
if (sb.length() > 0) {
sb.append(',');
}
sb.append(path.iface).append(',').append(path.ip).append(',').append(iqn);
}
return sb.toString();
}
public synchronized String getFirstTargetIqn() {
if (this.paths.size() > 0) {
return this.paths.get(0).iqn;
}
return null;
}
}