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A simple swing UI that allows you to visualize/export diagnostic files generates with the spf4j-core library: tsdb, ssdump...

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/*
 * Copyright (c) 2001-2017, Zoltan Farkas All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * Additionally licensed with:
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.spf4j.perf.tsdb;

import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.charset.StandardCharsets;

/**
 * TSDB header detail
 *
 * @deprecated please use org.spf4j.tsdb2
 * @author zoly
 */
@Deprecated
final class Header {

    public static final String TYPE = "TSDB";

    private final String type;
    private final int version;
    private final byte[] metaData;

    Header(final int version, final byte[] metaData) {
        this.type = TYPE;
        this.version = version;
        this.metaData = metaData;
    }

    Header(final RandomAccessFile raf) throws IOException {
        byte[] bType = new byte[4];
        raf.readFully(bType);
        this.type = new String(bType, StandardCharsets.US_ASCII);
        if (!TYPE.equals(this.type)) {
            throw new IOException("Invalid File Type " + this.type);
        }
        this.version = raf.readInt();
        int metaDataSize = raf.readInt();
        if (metaDataSize > 0) {
            this.metaData = new byte[metaDataSize];
            raf.readFully(this.metaData);
        } else {
            this.metaData = new byte[]{};
        }
    }

    public void writeTo(final RandomAccessFile raf) throws IOException {
        raf.write(type.getBytes(StandardCharsets.US_ASCII));
        raf.writeInt(version);
        raf.writeInt(metaData.length);
        if (metaData.length > 0) {
            raf.write(metaData);
        }
    }

    public String getType() {
        return type;
    }

    public int getVersion() {
        return version;
    }

    public byte[] getMetaData() {
        return metaData;
    }

    @Override
    public String toString() {
        return "Header{" + "type=" + type + ", version=" + version + '}';
    }

}