Example usage for org.joda.time.tz DateTimeZoneBuilder readFrom

Introduction

In this page you can find the example usage for org.joda.time.tz DateTimeZoneBuilder readFrom.

Prototype

public static DateTimeZone readFrom(DataInput in, String id) throws IOException 

Source Link

Document

Decodes a built DateTimeZone from the given stream, as encoded by writeTo.

Usage

From source file:net.danlew.android.joda.ZoneInfoCompiler.java

License:Apache License

/**
 * Returns a map of ids to DateTimeZones.
 *
 * @param outputDir optional directory to write compiled data files to
 * @param sources optional list of source files to parse
 */// w  ww .ja  v  a  2  s  .c  o  m
public Map<String, DateTimeZone> compile(File outputDir, File[] sources) throws IOException {
    if (sources != null) {
        for (int i = 0; i < sources.length; i++) {
            BufferedReader in = new BufferedReader(new FileReader(sources[i]));
            parseDataFile(in);
            in.close();
        }
    }

    if (outputDir != null) {
        if (!outputDir.exists()) {
            if (!outputDir.mkdirs()) {
                throw new IOException(
                        "Destination directory doesn't exist and cannot be created: " + outputDir);
            }
        }
        if (!outputDir.isDirectory()) {
            throw new IOException("Destination is not a directory: " + outputDir);
        }
    }

    Map<String, DateTimeZone> map = new TreeMap<String, DateTimeZone>();

    System.out.println("Writing zoneinfo files");
    for (int i = 0; i < iZones.size(); i++) {
        Zone zone = iZones.get(i);
        DateTimeZoneBuilder builder = new DateTimeZoneBuilder();
        zone.addToBuilder(builder, iRuleSets);
        final DateTimeZone original = builder.toDateTimeZone(zone.iName, true);
        DateTimeZone tz = original;
        if (test(tz.getID(), tz)) {
            map.put(tz.getID(), tz);
            if (outputDir != null) {
                String fileName = ResUtils.getTzResource(tz.getID());
                if (ZoneInfoCompiler.verbose()) {
                    System.out.println("Writing " + fileName);
                }
                File file = new File(outputDir, fileName);
                if (!file.getParentFile().exists()) {
                    file.getParentFile().mkdirs();
                }
                OutputStream out = new FileOutputStream(file);
                try {
                    builder.writeTo(zone.iName, out);
                } finally {
                    out.close();
                }

                // Test if it can be read back.
                InputStream in = new FileInputStream(file);
                DateTimeZone tz2 = DateTimeZoneBuilder.readFrom(in, tz.getID());
                in.close();

                if (!original.equals(tz2)) {
                    System.out.println("*e* Error in " + tz.getID() + ": Didn't read properly from file");
                }
            }
        }
    }

    for (int pass = 0; pass < 2; pass++) {
        for (int i = 0; i < iLinks.size(); i += 2) {
            String id = iLinks.get(i);
            String alias = iLinks.get(i + 1);
            DateTimeZone tz = map.get(id);
            if (tz == null) {
                if (pass > 0) {
                    System.out.println("Cannot find time zone '" + id + "' to link alias '" + alias + "' to");
                }
            } else {
                map.put(alias, tz);
            }
        }
    }

    if (outputDir != null) {
        System.out.println("Writing " + ResUtils.getZoneInfoMapResource());
        File file = new File(outputDir, ResUtils.getZoneInfoMapResource());
        if (!file.getParentFile().exists()) {
            file.getParentFile().mkdirs();
        }

        OutputStream out = new FileOutputStream(file);
        DataOutputStream dout = new DataOutputStream(out);
        try {
            // Sort and filter out any duplicates that match case.
            Map<String, DateTimeZone> zimap = new TreeMap<String, DateTimeZone>(String.CASE_INSENSITIVE_ORDER);
            zimap.putAll(map);
            writeZoneInfoMap(dout, zimap);
        } finally {
            dout.close();
        }
    }

    return map;
}

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