com.edgenius.core.Installation.java Source code

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Here is the source code for com.edgenius.core.Installation.java

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/* 
 * =============================================================
 * Copyright (C) 2007-2011 Edgenius (http://www.edgenius.com)
 * =============================================================
 * License Information: http://www.edgenius.com/licensing/edgenius/2.0/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2.0
 * as published by the Free Software Foundation.
 *
 * This program 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 General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * http://www.gnu.org/licenses/gpl.txt
 *  
 * ****************************************************************
 */
package com.edgenius.core;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import org.apache.commons.lang.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.edgenius.core.util.FileUtil;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.annotations.XStreamAlias;

/**
 * @author Dapeng.Ni
 */
@XStreamAlias("Installation")
public class Installation {
    private static final Logger log = LoggerFactory.getLogger(Installation.class);
    public static final String FILE = "installation.xml";
    public static final String DEFAULT_FILE = "classpath:geniuswiki/installation.default.xml";

    private static final String installResource = "installation.xml";

    public static final String STATUS_WELCOME = "welcome";
    public static final String STATUS_COMPLETED = "completed";
    public static final String STATUS_DATAROOT = "dataroot";
    public static final String STATUS_LICENSE = "license";
    public static final String STATUS_MQ = "mq";
    public static final String STATUS_DB = "db";
    public static final String STATUS_TABLES = "tables";
    public static final String STATUS_UPGRADE = "upgarde";

    //instance type
    public static final String INSTANCE_STANDARD = "standard";
    public static final String INSTANCE_HOSTING = "hosting";

    public static boolean DONE = false;
    public static String INSTANCE_ID;
    public static String INSTANCE_TYPE;

    private String version;
    private String status = STATUS_WELCOME;
    private String[] steps;
    private String instanceID;
    private String instanceType;
    private String license;

    public static Installation refreshInstallation() {

        Installation install = new Installation();
        try {
            File installFile = FileUtil.getFile(DataRoot.getDataRoot() + installResource);

            if (installFile.exists()) {
                XStream xs = new XStream();
                xs.processAnnotations(Installation.class);
                install = (Installation) xs.fromXML(new FileInputStream(installFile));
                if (Installation.STATUS_COMPLETED.equalsIgnoreCase(install.getStatus())) {
                    Installation.DONE = true;
                }

                Installation.INSTANCE_ID = StringUtils.trimToEmpty(install.getInstanceID());
                Installation.INSTANCE_TYPE = install.getInstanceType();

            }
        } catch (Exception e) {
            log.error("Unable load installation.xml, treat as system not install");
        }

        return install;
    }

    /**
     * This method only used in single request model such as installation, startup. Otherwise, please use
     * SettingService.saveInstallation() for thread-safe.
     * @param install
     */
    public static void saveInstallation(Installation install) {
        FileOutputStream os = null;
        try {
            File installFile = FileUtil.getFile(DataRoot.getDataRoot() + installResource);
            os = new FileOutputStream(installFile);
            XStream xs = new XStream();
            xs.processAnnotations(Installation.class);
            xs.toXML(install, os);
            os.flush();
        } catch (Exception e) {
            log.error("Failed save or update installation file, this may cause install step redo.", e);
        } finally {
            if (os != null)
                try {
                    os.close();
                } catch (IOException e) {
                }
        }

    }

    public static Installation loadDefault() throws IOException {
        XStream xs = new XStream();
        xs.processAnnotations(Installation.class);
        return (Installation) xs.fromXML(FileUtil.getFileInputStream(Installation.DEFAULT_FILE));
    }

    public String getVersion() {
        return version;
    }

    public void setVersion(String version) {
        this.version = version;
    }

    public String getStatus() {
        return status;
    }

    public void setStatus(String status) {
        this.status = status;
    }

    public String[] getSteps() {
        return steps;
    }

    public void setSteps(String[] steps) {
        this.steps = steps;
    }

    public String getLicense() {
        return license;
    }

    public void setLicense(String license) {
        this.license = license;
    }

    public String getInstanceID() {
        return instanceID;
    }

    public void setInstanceID(String instanceID) {
        this.instanceID = instanceID;
    }

    public String getInstanceType() {
        return instanceType;
    }

    public void setInstanceType(String instanceType) {
        this.instanceType = instanceType;
    }
}