com.sun.btrace.comm.NumberMapDataCommand Maven / Gradle / Ivy

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/*
 * Copyright 2008-2010 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */
package com.sun.btrace.comm;

import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.io.PrintWriter;
import java.util.HashMap;
import java.util.Map;

/**
 * A data command that hold data of type Map.
 * 
 * @author A. Sundararajan
 */
public class NumberMapDataCommand extends DataCommand {

    private Map data;

    public NumberMapDataCommand() {
        this(null, null);
    }

    public NumberMapDataCommand(String name, Map data) {
        super(NUMBER_MAP, name);
        this.data = (data != null)? new HashMap(data) : null;
    }

    public Map getData() {
        return data;
    }

    public void print(PrintWriter out) {
        if (name != null && !name.equals("")) {
            out.println(name);
        }
        if (data != null) {
            for (Map.Entry e : data.entrySet()) {
                out.print(e.getKey());
                out.print(" = ");
                out.println(e.getValue());
            }
        }
    }
    
    protected void write(ObjectOutput out) throws IOException {
        out.writeUTF(name != null ? name : "");
        if (data != null) {
            out.writeInt(data.size());
            for (String key : data.keySet()) {
                out.writeUTF(key);
                out.writeObject(data.get(key));
            }
        } else {
            out.writeInt(0);
        }
    }

    protected void read(ObjectInput in)
            throws IOException, ClassNotFoundException {
        this.name = in.readUTF();
        Map map = new HashMap();
        int sz = in.readInt();
        for (int i = 0; i < sz; i++) {
            map.put(in.readUTF(), (Number) in.readObject());
        }
        this.data = map;
    }
}