Shm14.java

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package com.sun.grizzly.http.jk.common;

import com.sun.grizzly.http.jk.core.Msg;
import com.sun.grizzly.http.jk.core.MsgContext;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;

import com.sun.grizzly.util.IntrospectionUtils;
import com.sun.grizzly.util.LoggerUtils;
import java.util.logging.Level;

/** Shm implementation using JDK1.4 nio.
 *
 *
 * @author Costin Manolache
 */
public class Shm14 extends Shm {

    MappedByteBuffer bb;

    public void init() {
        try {
            RandomAccessFile f = new RandomAccessFile(file, "rw");
            FileChannel fc = f.getChannel();

            bb = fc.map(FileChannel.MapMode.READ_WRITE, 0, f.length());
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

    public void dumpScoreboard(String file) {
        // We can only sync with our backing store.
        bb.force();
    // XXX we should copy the content to the file
    }

    public void resetScoreboard() throws IOException {
    // XXX Need to write the head
    }

    public int invoke(Msg msg, MsgContext ep)
            throws IOException {
        if (LoggerUtils.getLogger().isLoggable(Level.FINEST)) {
            LoggerUtils.getLogger().log(Level.FINEST, "ChannelShm14.invoke: " + ep);
        }

        // 

        return 0;
    }

    public void initCli() {
    }

    public static void main(String args[]) {
        try {
            Shm14 shm = new Shm14();

            if (args.length == 0 ||
                    ("-?".equals(args[0]))) {
                shm.setHelp(true);
                return;
            }

            IntrospectionUtils.processArgs(shm, args);
            shm.execute();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
}