Glassfish example source code file (RelayService.java)

This example Glassfish source code file (RelayService.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Glassfish tags/keywords

bufferedreader, bufferedwriter, exception, formatter, formatter, io, log, logging, regex, registrationexception, registrationexception, relayservice, repositorymanager, string, string, stringbuffer, stringbuilder, stringbuilder, text, util

The Glassfish RelayService.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010-2011 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
 * "Portions Copyright [year] [name of copyright owner]"
 *
 * Contributor(s):
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */


package com.sun.enterprise.registration.impl;
import java.util.*;
import java.io.*;
import java.text.*;

import com.sun.enterprise.registration.RegistrationException;
import com.sun.enterprise.registration.impl.environment.EnvironmentInformation;

import java.util.logging.Logger;
import java.util.logging.Level;
import java.util.Formatter;
import java.util.regex.Pattern;
import java.util.regex.Matcher;

public class RelayService {

    private static final Logger logger = RegistrationLogger.getLogger();
    private static final String ENV_TOKEN   =   "@@@ENVIRONMENT@@@";
    private static final String TAG_TOKEN   =   "@@@SERVICE_TAGS@@@";
    private static final String PRODUCTNAME_TOKEN =   "@@@PRODUCTNAME@@@";
    private static final String TEMPLATE_FILE = "com/sun/enterprise/registration/impl/relay-template.html";
    private static final String STRING_TOKEN =   "@@@STRING.";
    private static final String END_TOKEN =   "@@@";

    private RepositoryManager rm;
    private ResourceBundle bundle;
    Pattern stringPattern = Pattern.compile(STRING_TOKEN);


    public RelayService(File repositoryFile) throws RegistrationException {
        rm = new RepositoryManager(repositoryFile);
        // make sure runtime values are generated in RepositoryManager
        rm.updateRuntimeValues();
    }

    public RelayService(String repositoryFile) throws RegistrationException {
        this(new File(repositoryFile));
    }

    public void generateRegistrationPage(String outputFile) throws Exception {
        generateRegistrationPage(outputFile, Locale.getDefault());
    }
    
    public void generateRegistrationPage(String outputFile, Locale locale) throws Exception {
        bundle = getResourceBundle(locale);
        InputStream is = getClass().getClassLoader().getResourceAsStream(TEMPLATE_FILE);
        if (is == null)
            throw new RegistrationException("Template file [" + TEMPLATE_FILE + "] not found");

        List<ServiceTag> serviceTags = rm.getServiceTags();
        String productName = "";
        for (ServiceTag tag : serviceTags) {
            if (productName.length() > 0)
                productName = productName + " + ";
            productName = productName + tag.getSource();
        }
        
        String tags = getHtml(serviceTags);
        String env = getEnvironmentInformation();
        BufferedReader br = new BufferedReader(new InputStreamReader(is));
        BufferedWriter bw = new BufferedWriter(new FileWriter(outputFile));

        String line;
        while ((line = br.readLine())!= null) {
            if (line.indexOf(ENV_TOKEN) >= 0)
                line = line.replaceAll(ENV_TOKEN, env);
            if (line.indexOf(TAG_TOKEN) >= 0)
                line = line.replaceAll(TAG_TOKEN, tags);
            if (line.indexOf(PRODUCTNAME_TOKEN) >= 0)
                line = line.replaceAll(PRODUCTNAME_TOKEN, productName);
            line = replaceStringTokens(line);
            bw.write(line);
            bw.newLine();
        }
        bw.flush();
    }

    private String replaceStringTokens(String line) {
        int start = 0, end = 0;
        StringBuffer buf = new StringBuffer("");

        while (start != -1) {
            // Find start of token
            start = line.indexOf(STRING_TOKEN, end);
            if (start != -1) {
                // copy the stuff before the start
                buf.append(line.substring(end, start));

                // Move past the @@@
                start += STRING_TOKEN.length();

                // Find end of token
                end = line.indexOf(END_TOKEN, start);
                if (end != -1) {
                    try {
                        // Copy the token value to the buffer
                        buf.append(
                                bundle.getString(line.substring(start, end)));
                    } catch (MissingResourceException ex) {
                        // Unable to find the resource, so we don't do anything
                        buf.append(STRING_TOKEN + line.substring(start, end) + END_TOKEN);
                    }

                    // Move past the %%%
                    end += END_TOKEN.length();
                } else {
                    // Add back the %%% because we didn't find a matching end
                    buf.append(END_TOKEN);

                    // Reset end so we can copy the remainder of the text
                    end = start;
                }
            }
        }

        // Copy the remainder of the text
        buf.append(line.substring(end));

        // Return the new String
        return buf.toString();

    }

    /**
     * <p> This method returns the resource bundle for localized Strings 

     *
     * @param    locale    The Locale to be used.
     */
    private ResourceBundle getResourceBundle(Locale locale) {
        return ResourceBundle.getBundle(
            "com.sun.enterprise.registration.impl.LocalStrings", locale);
    }


    private String getHtml(List<ServiceTag> serviceTags) {
        if (serviceTags.isEmpty()) {
            logger.log(Level.WARNING, "No tags found");
            return "";
        }
        StringBuilder tags = new StringBuilder();
        for (ServiceTag serviceTag : serviceTags) {
            tags.append(getHtml(serviceTag));
        }
        return tags.toString();
    }


    private String  getEnvironmentInformation() throws RegistrationException {
        StringBuilder html = new StringBuilder();
        EnvironmentInformation se = new EnvironmentInformation();

        Formatter fmt = new Formatter(html);

        html.append("<environment>");
        fmt.format("<hostname>%s\r\n", se.getHostname());
        fmt.format("<hostId>%s\r\n",se.getHostId());
        fmt.format("<osName>%s\r\n",se.getOsName());
        fmt.format("<osVersion>%s\r\n",se.getOsVersion());
        fmt.format("<osArchitecture>%s\r\n",se.getOsArchitecture());
        fmt.format("<systemModel>%s\r\n",se.getSystemModel());
        fmt.format("<systemManufacturer>%s\r\n",se.getSystemManufacturer());
        fmt.format("<cpuManufacturer>%s\r\n",se.getCpuManufacturer());
        fmt.format("<serialNumber>%s\r\n",se.getSerialNumber());

        addNumericTag(fmt, "physmem", se.getPhysMem());
        html.append("<cpuinfo>\r\n");
        addNumericTag(fmt, "sockets", se.getSockets());
        addNumericTag(fmt, "cores", se.getCores());
        addNumericTag(fmt, "virtcpus", se.getVirtCpus());
        fmt.format("<name>%s\r\n", se.getCpuName());
        addNumericTag(fmt, "clockrate", se.getClockRate());
        html.append("</cpuinfo>\r\n");
        html.append("</environment>\r\n");
        return html.toString();
    }

    private void addNumericTag(Formatter fmt, String tag, String value) {
       try {
            int i = Integer.valueOf(value);
            fmt.format("<" + tag + ">%s\r\n", i);
        } catch (Exception ex) {
            //ignore.
        }
    }
    
    private String getHtml(ServiceTag tag) {
        StringBuilder html = new StringBuilder();
        Formatter fmt = new Formatter(html);
        fmt.format("<service_tag>\r\n");
        fmt.format("<instance_urn>%s\r\n",tag.getInstanceURN());
        fmt.format("<product_name>%s\r\n",tag.getProductName());
        fmt.format("<product_version>%s\r\n",tag.getProductVersion());
        fmt.format("<product_urn>%s\r\n",tag.getProductURN());
        fmt.format("<product_parent_urn/>\r\n");
        fmt.format("<product_parent>%s\r\n",tag.getProductParent());
        fmt.format("<product_defined_inst_id>%s\r\n",tag.getProductDefinedInstID());
        fmt.format("<product_vendor>%s\r\n",tag.getProductVendor());
        fmt.format("<platform_arch>%s\r\n",tag.getPlatformArch());
        fmt.format("<timestamp>%s", (new SimpleDateFormat("yyyy-MM-dd HH:mm:ss z")).format(new Date()));
        fmt.format("<container>%s\r\n",tag.getContainer());
        fmt.format("<source>%s\r\n",tag.getSource());
        fmt.format("<installer_uid>-1");

//        fmt.format("<installer_uid>%s",tag.getInstallerUID());
        fmt.format("</service_tag>\r\n");

        return html.toString();
    }
}