setup.java

Java的面向对象数据库系统的源代码

// You can redistribute this software and/or modify it under the terms of
// the Ozone Library License version 1 published by ozone-db.org.
//
// The original code and portions created by SMB are
// Copyright (C) 1997-@year@ by SMB GmbH. All rights reserved.
//
// $Id: Setup.java,v 1.9.2.1 2004/01/11 20:42:30 per_nyfelt Exp $

package org.ozoneDB;

import java.util.*;
import org.ozoneDB.util.*;
import org.ozoneDB.core.Env;


/**
 * Setup holds all static configuration properties plus all dynamic runtime
 * properties of an ozone environment. Setup has methods to store/update the
 * value of a property to handle such dynamic properties.
 *
 *
 * @author <a href="http://www.softwarebuero.de/">SMB</a>
 * @author <a href="http://www.medium.net/">Medium.net</a>
 * @version $Revision: 1.9.2.1 $Date: 2004/01/11 20:42:30 $
 */
public class Setup extends EnhProperties {

    public final static String DB_ID = "ozoneDB.dbID";
    public final static String PORT = "ozoneDB.port";
    public final static String ADMIN_PORT = "ozoneDB.adminPort";
    public final static String LOG_LEVEL = "ozoneDB.logLevel";
    public final static String STORE = "ozoneDB.store";

    public static final String MIN_FREE_MEMORY = "ozoneDB.vm.minFreeMemory";
    public static final String TOTAL_MEMORY = "ozoneDB.vm.totalMemory";

    public final static String XOID = "ozoneDB.xoid";

    public final static String CS_CLUSTER_SIZE = "ozoneDB.classicStore.clusterSize";
    public final static String CS_CLUSTER_SPACE_SIZE = "ozoneDB.classicStore.clusterSpaceSize";
    public final static String CS_TABLE_BUFF_SIZE = "ozoneDB.classicStore.tableBufferSize";
    public final static String CS_TABLE_CACHE_SIZE = "ozoneDB.classicStore.tableCacheSize";

    public final static String WS_CLUSTER_SIZE = "ozoneDB.wizardStore.clusterSize";
    public final static String WS_CLUSTER_SIZE_RATIO = "ozoneDB.wizardStore.clusterSizeRatio";
    public final static String WS_TABLE_BUFF_SIZE = "ozoneDB.wizardStore.tableBufferSize";
    public final static String WS_TABLE_CACHE_SIZE = "ozoneDB.wizardStore.tableCacheSize";
    public final static String WS_TABLE_SUBTABLE_SIZE = "ozoneDB.wizardStore.tableSubtableSize";
    public final static String WS_COMPRESS_CLUSTERS = "ozoneDB.wizardStore.compressClusters";

    public final static String GARBAGE_COLLECTION_LEVEL	=	"ozoneDB.garbageCollection.level";

    protected Env env;


    public Setup( Env env ) {
        super();
        //TODO: is this what we should do with env?
        this.env = env;
    }


    public Setup( Env env, Properties defaults ) {
        super( defaults );
        //TODO: is this what we should do with env?
        this.env = env;
    }

    public String stringProperty(String _key, String _default) {
        String property = super.stringProperty(_key, _default);

        // This is to make it possible to just use e.g. MagicStore as the value in the prps file
        // it also makes us backwards compatible with old WizardStore location
        if (_key.equals(STORE)) {
            if (property.matches(".*WizardStore")) {
                property = "org.ozoneDB.core.storage.wizardStore.WizardStore";
            } else if (property.matches(".*MagicStore")) {
                property = "org.ozoneDB.core.storage.magicStore.MagicStore";
            } else if (property.matches(".*GammaStore")) {
                property = "org.ozoneDB.core.storage.gammaStore.GammaStore";
            } else if (property.matches(".*ClassicStore")) {
                property = "org.ozoneDB.core.storage.classicStore.ClassicStore";
            }
        }
        return property;
    }


    public void fillWithOzoneDefaults() {
        setStringProperty( STORE, "org.ozoneDB.core.storage.wizardStore.WizardStore");

        setIntProperty( DB_ID, 0 );
        setIntProperty( PORT, 3333 );
        setIntProperty( ADMIN_PORT, 3000 );

        setIntProperty( CS_CLUSTER_SIZE, 64 * 1024 );
        setIntProperty( CS_CLUSTER_SPACE_SIZE, 5000 * 1024 );
        setIntProperty( CS_TABLE_BUFF_SIZE, 50 * 256 );
        setIntProperty( CS_TABLE_CACHE_SIZE, 4 * 1024 );

        setIntProperty( WS_CLUSTER_SIZE, 64 * 1024 );
        setIntProperty( WS_CLUSTER_SIZE_RATIO, 256 );
        setIntProperty( WS_TABLE_BUFF_SIZE, 15 );
        setIntArrayProperty( WS_TABLE_SUBTABLE_SIZE, new int[] {11} );
        setIntProperty( WS_TABLE_CACHE_SIZE, 12 );
        setBooleanProperty( WS_COMPRESS_CLUSTERS, true );
        setIntProperty(GARBAGE_COLLECTION_LEVEL,0);
    }

}