thomson.java

openacs source for CPE wan management

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package org.openacs.vendors;

import java.util.ArrayList;

/**
 *
 * @author Administrator
 */
public class Thomson extends Vendor {

    private static final int CHECK_WRONG_VALUE = 1;
    private static final int CHECK_MISSING_VAR = 2;
    private void CheckLine (String cfg, String cmd, String var, String value, ArrayList <String> msgs) {
        String s = cmd+"set var="+var+" value=" + value;
        if (!cfg.contains(s)) {
            if (cfg.contains(s+"\r\n") || cfg.contains(s+"\n")) {
                msgs.add("Wrong value for  \"" + var + "\". Expected '"+s+"'\n");
            } else {
                msgs.add("Missing line \"" + s + "\".\n");
            }
        }
    }
    private int CheckLine (StringBuilder cfg, String cmd, String var, String value) {
        String s = cmd+"set var="+var+" value=" + value;
        if (cfg.indexOf(s+"\n")==-1 && cfg.indexOf(s+"\r\n")==-1) {
            return (cfg.indexOf(cmd+"set var="+var+" value=") != -1) ? CHECK_WRONG_VALUE : CHECK_MISSING_VAR;
        }
        return 0;
    }
    private void commonCheckConfig (String name, String version, String cfg, String cmd, ArrayList <String> msgs) {
        CheckLine(cfg, cmd, "CONF_SERVICE", "\""+name+"\"", msgs);
        CheckLine(cfg, cmd, "CONF_VERSION", version, msgs);
    }

    private String [] commonReturn (ArrayList <String> msgs, boolean sts) {
        if (!msgs.isEmpty()) {
            if (!sts) msgs.add(0, "Problems with configs file [ env.ini ] section");
            msgs.add (msgs.size(), "Unless fixed config update will loop.");
            return msgs.toArray(new String [0]);
        }
        return null;
   }


    private String [] CheckConfigIni(String name, String version, String cfg, ArrayList <String> msgs) {
        commonCheckConfig (name, version, cfg, "", msgs);
        return commonReturn(msgs, false);
    }

    private String [] CheckConfigSts(String filename, String name, String version, String cfg, ArrayList <String> msgs) {
        String h = "TPVERSION=2.0.0 BOARD_NAME="+hwversion;
        if (!cfg.contains(h)) {
            msgs.add("sts file should start with header \""+h+"\"");
        }
        if (filename.length() < 5) {
            msgs.add ("File name should be at least one char + .sts ("+filename+")");
        }
        if (filename.length() > 12) {
            msgs.add ("File name should be at most 8 char + '.sts'("+filename+")");
        }
        commonCheckConfig (name, version, cfg, ":env ", msgs);
        return commonReturn(msgs, true);
    }

    @Override
    public String [] CheckConfig(String filename, String name, String version, String cfg) {
        String fn = filename;
        fn.toLowerCase();
        ArrayList <String> msgs = new ArrayList<String> ();
        if (fn.equals("user.ini")) {
            return CheckConfigIni(name, version, cfg, msgs);
        } else if (fn.endsWith(".sts")) {
            return CheckConfigSts(filename, name, version, cfg, msgs);
        } else {
            String [] r = new String [1];
            r [0] = "Invalid config file name: must be either user.ini or xxxxxxxx.sts (x any charachter)";
            return r;
        }
    }

    private boolean UpdateConfigLineIni (StringBuilder cfg, String var, String value) {
        switch (CheckLine(cfg, "", var, value)) {
            case CHECK_WRONG_VALUE:
                UpdateConfigSetValue (cfg, var, value);
                return true;
            case CHECK_MISSING_VAR:
                int i = cfg.indexOf("[ env.ini ]");
                if ( i != -1) {
                    i += "[ env.ini ]".length();
                    if (cfg.charAt(i) == '\r') i++;
                    if (cfg.charAt(i) == '\n') i++;
                    cfg.insert(i, "set var="+var+" value="+value+"\r\n");
                }
                return true;
        }
        return false;
    }
    private void UpdateConfigSetValue (StringBuilder cfg, String var, String value) {
        String p = "var="+var+" value=";
        int s = cfg.indexOf(p) + p.length();
        int e = cfg.indexOf("\r", s);
        if (e == -1) e = cfg.indexOf("\n", s);
        if (e == -1) e= cfg.length();
        cfg.replace(s, e, value);
    }
    private boolean UpdateConfigLineSts (StringBuilder cfg, String var, String value) {
        switch (CheckLine(cfg, ":env ", var, value)) {
            case CHECK_WRONG_VALUE:
                UpdateConfigSetValue (cfg, var, value);
                return true;
            case CHECK_MISSING_VAR:
                cfg.append("\n:env set "+var+"="+value+"\n");
                return true;
        }
        return false;
    }
    private String UpdateConfigIni (String name, String version, String cfg) {
        StringBuilder r = new StringBuilder(cfg);
        boolean rb = UpdateConfigLineIni(r, "CONF_SERVICE", "\""+name+"\"");
        if (UpdateConfigLineIni(r, "CONF_VERSION", version) || rb)
            return r.toString();
        return null;
    }
    private String UpdateConfigSts (String name, String version, String cfg) {
        StringBuilder r = new StringBuilder(cfg);
        boolean rb = UpdateConfigLineSts(r, "CONF_SERVICE", name);
        if (UpdateConfigLineSts(r, "CONF_VERSION", version) || rb)
            return r.toString();
        return null;
    }
    @Override
    public String UpdateConfig (String filename, String name, String version, String cfg) {
        if (filename.equals("user.ini")) {
            return UpdateConfigIni(name, version, cfg);
        } else if (filename.endsWith(".sts")) {
            return UpdateConfigSts (name, version, cfg);
        }
        return null;
    }
    @Override
    public int getConfigUpdateMethod () {
        return CFG_UPDATE_METHOD_2;
    }
}