ZWaveDbProduct.java

/**
 * Copyright (c) 2010-2016 by the respective copyright holders.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */
package org.openhab.binding.zwave.internal.config;

import java.util.List;

import org.osgi.framework.Version;

import com.thoughtworks.xstream.annotations.XStreamConverter;
import com.thoughtworks.xstream.annotations.XStreamImplicit;
import com.thoughtworks.xstream.converters.extended.ToAttributedValueConverter;

/**
 * Implements the product class for the XML product database
 *
 * @author Chris Jackson
 * @since 1.4.0
 *
 */
public class ZWaveDbProduct {
    @XStreamImplicit
    public List<ZWaveDbProductReference> Reference;

    public String Model;

    @XStreamImplicit
    public List<ZWaveDbLabel> Label;

    @XStreamImplicit
    private List<ZWaveDbConfigFile> ConfigFile;

    @XStreamConverter(value = ToAttributedValueConverter.class, strings = { "Filename", "VersionMin", "VersionMax" })
    private class ZWaveDbConfigFile {
        String VersionMin;
        String VersionMax;

        String Filename;
    }

    public String getConfigFile(String version) {
        if (ConfigFile == null) {
            return null;
        }

        Version vIn = new Version(version);
        String filename = null;
        // Check for a version'ed file
        // There are multiple permutations of the file that we need to account for -:
        // * No version information
        // * Only a min version
        // * Only a max version
        // * Both min and max versions
        // Versions need to be evaluated with the max and min specifiers separately
        // i.e. the part either side of the decimal.
        // So, version 1.3 is lower than version 1.11
        for (ZWaveDbConfigFile cfg : ConfigFile) {
            // Find a default - ie one with no version information
            if (cfg.VersionMin == null && cfg.VersionMax == null && filename == null) {
                filename = cfg.Filename;
                continue;
            }

            if (cfg.VersionMin != null) {
                Version vMin = new Version(cfg.VersionMin);
                if (vIn.compareTo(vMin) < 0) {
                    continue;
                }
            }

            if (cfg.VersionMax != null) {
                Version vMax = new Version(cfg.VersionMax);

                if (vIn.compareTo(vMax) > 0) {
                    continue;
                }
            }

            // This version matches the criterea
            return cfg.Filename;
        }

        // Otherwise return the default if there was one!
        return filename;
    }
}