JRobinDirectoryUtil.java

/*******************************************************************************
 * This file is part of OpenNMS(R).
 *
 * Copyright (C) 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.netmgt.jasper.helper;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Properties;

import net.sf.jasperreports.engine.util.JRProperties;

import org.opennms.core.utils.RrdLabelUtils;

public class JRobinDirectoryUtil {
    
    public boolean isStoreByGroup() {
        return JRProperties.getBooleanProperty("org.opennms.rrd.storeByGroup") || Boolean.getBoolean("org.opennms.rrd.storeByGroup");
    }
    
    public String getIfInOctetsDataSource(String rrdDirectory, String nodeId, String iFace) throws IOException {
        StringBuffer directory = new StringBuffer();
        directory.append(rrdDirectory)
            .append(File.separator)
            .append(nodeId)
            .append(File.separator)
            .append(iFace);
        
        if(!isStoreByGroup()) {
            if(checkIfHCExists("ifHCInOctets", directory.toString())) {
                return "ifHCInOctets";
            }else {
                return "ifInOctets";
            }
        }else {
            if(checkDsPropertyFileFor("ifHCInOctets", directory.toString())) {
                return "ifHCInOctets";
            }else {
                return "ifInOctets";
            }
        }
    }
    
    public String getIfOutOctetsDataSource(String rrdDirectory, String nodeId,String iFace) throws IOException {
        StringBuffer directory = new StringBuffer();
        directory.append(rrdDirectory)
            .append(File.separator)
            .append(nodeId)
            .append(File.separator)
            .append(iFace);
        
        if(!isStoreByGroup()) {
            
            if(checkIfHCExists("ifHCOutOctets", directory.toString())) {
                return "ifHCOutOctets";
            }else {
                return "ifOutOctets";
            }
            
        }else {
           
            if(checkDsPropertyFileFor("ifHCOutOctets", directory.toString())) {
                return "ifHCOutOctets";
            }else {
                return "ifOutOctets";
            }
        }
    }
    
    private boolean checkDsPropertyFileFor(String ifOctetsDS, String directory) throws IOException {
        File f = new File(directory.toString() + "" + File.separator + "ds.properties");
        if(f.exists()) {
            Properties prop = new Properties();
            FileInputStream fis = new FileInputStream(f);
            prop.load(fis);
            fis.close();
            
            return prop.get(ifOctetsDS) != null ? true : false;
        }else {
            return false;
        }
        
    }

    public String getIfInOctetsJrb(String rrdDirectory, String nodeId,String iFace) throws FileNotFoundException, IOException {
        return getOctetsFile(rrdDirectory, nodeId, iFace, "ifHCInOctets", "ifInOctets");
    }
    
    public String getIfOutOctetsJrb(String rrdDirectory, String nodeId,String iFace) throws FileNotFoundException, IOException {
        return getOctetsFile(rrdDirectory, nodeId, iFace, "ifHCOutOctets", "ifOutOctets");
    }

    private String getOctetsFile(String rrdDirectory, String nodeId, String iFace, String ifHCFilename, String ifFilename) throws FileNotFoundException, IOException {
        StringBuffer directory = new StringBuffer();
        directory.append(rrdDirectory)
            .append(File.separator)
            .append(nodeId)
            .append(File.separator)
            .append(iFace);
        
        if(isStoreByGroup()) {
            appendStoreByGroup(directory);
        }else {
            
            if(checkIfHCExists(ifHCFilename, directory.toString())) {
                directory.append(File.separator).append(ifHCFilename).append(getExtension());
            }else {
                directory.append(File.separator).append(ifFilename).append(getExtension());
            }
        }
        
        return  directory.toString();
    }

    private boolean checkIfHCExists(String ifHCFilename, String dir) {
        File ifOctets = new File(dir + "" + File.separator + ifHCFilename + getExtension());
        return ifOctets.exists();
    }
    
    private String getExtension() {
        if(JRProperties.getProperty("org.opennms.rrd.fileExtension") != null) {
            return JRProperties.getProperty("org.opennms.rrd.fileExtension");
        }else if(System.getProperty("org.opennms.rrd.fileExtension") != null) {
            return System.getProperty("org.opennms.rrd.fileExtension");
        }else {
            if(System.getProperty("org.opennms.rrd.strategyClass") != null) {
                return System.getProperty("org.opennms.rrd.strategyClass", "UnknownStrategy").endsWith("JRobinRrdStrategy") ? ".jrb" : ".rrd";
            }
            return ".jrb";
        }
        
    }

    private void appendStoreByGroup(StringBuffer directory) throws FileNotFoundException, IOException {
        File f = new File(directory.toString() + "" + File.separator + "ds.properties");
        if(f.exists()) {
            Properties prop = new Properties();
            FileInputStream fis = new FileInputStream(f);
            prop.load(fis);
            fis.close();
            
            if(prop.get("ifHCInOctets") != null) {
                directory.append(File.separator).append((String) prop.get("ifHCInOctets")).append(getExtension());
            }else {
                directory.append(File.separator).append((String) prop.get("ifInOctets")).append(getExtension());
            }
            
        }
    }

    public String getInterfaceDirectory(String snmpifname, String snmpifdescr, String snmpphysaddr) {
        return RrdLabelUtils.computeLabelForRRD(snmpifname, snmpifdescr, snmpphysaddr);
    }
}