Version.java

/*
 * Version.java
 *
 * Created on 21 October 2003, 12:24
 */

package Sct;

import java.util.regex.*;

public final class Version extends java.util.Properties {
    
    public final static Version instance = new Version();
    
    public String getVersionName() {
        return version;
    }
    
    public double getVersion() {
        return versionNumber;
    }
    
    public int getMajorVersion() {
        return majorVersion;        
    }
    
    public int getMinorVersion() {
        return minorVersion;
    }
    
    //{

    public String getBuildSystem() {
        return getProperty("Sct.BuildSystem", "No information available");
    }
    public String getBuildHost() {
        return getProperty("Sct.BuildHost", "No information available");
    }
    public String getBuildDate() {
        return getProperty("Sct.BuildDate", "No information available");
    }
    public String getCmtConfig() {
        return getProperty("Sct.CmtConfig", "No information available");
    }
    public String getTdaqVersion() {
        return getProperty("Sct.TdaqVersion", "No information available");
    }
    public String getRootVersion() {
        return getProperty("Sct.RootVersion", "No information available");
    }
    public String getGccVersion() {
        return getProperty("Sct.GccVersion", "No information available");
    }
    public String getRodDaqVersion() {
        return getProperty("Sct.RodDaqVersion", "No information available");
    }
    
    public String getAllInformation() {
        String s = "System version: " + getVersion() + " named " + getVersionName();
        s += "\n\nBuild Information\nBuild System: " + getBuildSystem() + "\nBuild Host: " + getBuildHost();
        s += "\nBuild Date: " + getBuildDate() + "\nCmtConfig: " + getCmtConfig() + "\nRodDaq Version: ";
        s += getRodDaqVersion() + "\nTdaq Version: ";
        s += getTdaqVersion() + "\nRoot Version: " + getRootVersion() + "\nGcc Version: " + getGccVersion();
        return s;
    }
    
    //}
    
    private Version() {
        java.io.InputStream is = getClass().getClassLoader().getResourceAsStream("Sct/version.properties");
        if (is != null) {
            try {
                this.load(is);
            } catch (java.io.IOException e) {
                //Ignore this error as well
            }
        }

        String tag = getProperty("Sct.TagName");
        if (tag != null && tag.length() > 7) {
            version = tag.substring(7, tag.length()-1);
        } else {
            version = "SctRodDaq_0_0_Exp";
        }

        try {
            System.out.println(version);
            Matcher m = Pattern.compile("\\p{Alpha}+_(\\d+_\\d+).*").matcher(version);
            if (m.matches()) {
                String v = m.group(1);
                v = v.replace('_', '.');
                versionNumber = Double.parseDouble(v);
            }
        } catch (NumberFormatException e) {
            //Do nothing - stay with negative version numbers.
        }
        majorVersion = (int)Math.floor(versionNumber);
        minorVersion = (int)Math.floor((versionNumber - majorVersion)*101);
    }
    
    private String version;
    private double versionNumber = 0.0;
    private int majorVersion = -1;
    private int minorVersion = -1;
}

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