Glassfish example source code file (Filter.java)

This example Glassfish source code file (Filter.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, bufferedreader, collection, exception, file, file, filenamefilter, filewriter, inputstreamreader, io, string, string, stringtokenizer, util, vector, vector

The Glassfish Filter.java source code

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2010 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.
 */

import java.io.*;
import java.io.BufferedReader;
import java.io.File;
import java.io.FilenameFilter;
import java.io.InputStreamReader;
import java.lang.System;
import java.util.Collection;
import java.util.StringTokenizer;
import java.util.Vector;

public class Filter {

    static Vector<String> myMessageIds = new Vector();
    static Vector<String> myMissingMessageIds = new Vector();


    public Collection<File> listFiles(
            File directory,
            FilenameFilter filter,
            boolean recurse) {

        Vector<File> files = new Vector();

        // Get files / directories in the directory
        File[] entries = directory.listFiles();

        // Go over entries
        for (File entry : entries) {

            // If there is no filter or the filter accepts the
            // file / directory, add it to the list
            if (filter == null || filter.accept(directory, entry.getName())) {
                files.add(entry);
            }

            // If the file is a directory and the recurse flag
            // is set, recurse into the directory
            if (recurse && entry.isDirectory()) {
                files.addAll(listFiles(entry, filter, recurse));
            }
        }

        // Return collection of files
        return files;
    }

    public void readFileToGetMessageIds(File file) {
        try {

            //System.out.println("\n\n..." + file.getAbsolutePath());

            BufferedReader rdr =
                    new BufferedReader(
                            new InputStreamReader(
                                    new java.io.FileInputStream(file)));
            String line = null;

            while ((line = rdr.readLine()) != null) {
                //System.out.println("\n..."+line);
                if (line.contains(":")
                        && line.contains("=")
                        && !line.startsWith("#")
                        && !line.contains(".cause")
                        && !line.contains(".check")) {
                    StringTokenizer st = new StringTokenizer(line, "=");
                    if (st.hasMoreTokens()) {
                        st.nextToken();
                        String tempString = st.nextToken().trim();
                        if (tempString.contains(":")) {
                            String id = tempString.substring(0, tempString.indexOf(":")).trim();
                            //System.out.println("Ids=" + id);
                            if (id.length() < 10 && !id.contains(" ") && id.matches("[a-zA-Z0-9]*")) {
                                myMessageIds.add(id);
                            }
                        }
                    }
                }
            }
            rdr.close();
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("Exception during readFileToGetMessageIds: " + e);
        }


    }

    public void readFileToGetMissingDiagnosticInfo(File file) {
        try {

            Vector<String> idVector = new Vector();
            //System.out.println("\n\n..." + file.getAbsolutePath());

            BufferedReader rdr =
                    new BufferedReader(
                            new InputStreamReader(
                                    new java.io.FileInputStream(file)));
            String line = null;

            while ((line = rdr.readLine()) != null) {
                //System.out.println("\n..."+line);
                if (line.contains(":")
                        && line.contains("=")
                        && !line.startsWith("#")
                        && !line.contains(".cause")
                        && !line.contains(".check")) {
                    StringTokenizer st = new StringTokenizer(line, "=");
                    if (st.hasMoreTokens()) {
                        st.nextToken();
                        String tempString = st.nextToken().trim();
                        if (tempString.contains(":")) {
                            String id = tempString.substring(0, tempString.indexOf(":")).trim();
                            //System.out.println("Ids=" + id);
                            if (id.length() < 10 && !id.contains(" ") && id.matches("[a-zA-Z0-9]*")) {
                                myMissingMessageIds.add(id);
                            }
                        }
                    }
                }
            }

            rdr.close();

            for (String id : myMissingMessageIds) {
                rdr =
                        new BufferedReader(
                                new InputStreamReader(
                                        new java.io.FileInputStream(file)));
                line = null;
                while ((line = rdr.readLine()) != null) {
                    if (!line.contains("#")
                            && (line.contains(id + ".diag.cause") || line.contains(id + ".diag.check"))) {
                        idVector.add(id);
                    }
                }
                rdr.close();
            }

            for (String id : idVector) {
                myMissingMessageIds.remove(id);
            }

        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("Exception during readFileToGetMissingDiagnosticInfo: " + e);
        }


    }

    public void writeKeyToFile(Vector<String> ids, String fileName) {

        try {
            FileWriter fw = new FileWriter(new File(fileName));
            for (String id : ids) {
                fw.write(id + "\n");
            }
            fw.flush();
            fw.close();
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("Exception during Writing File");
        }

    }


    public static void main(String args[]) {

        boolean masterIds = false;
        boolean missingIds = false;
        boolean isGfHome = true;
        String gfHome = "";

        if (args.length < 2 || args[0]==null || args[1] ==null || ("${glassfish_home}").equals(args[0]) || ("${options}").equals(args[1]) 
				|| ("").equals(args[0]) || ("").equals(args[1]) ) {
            System.out.println("Missing Inputs...\n");
            System.out.println("Usage: java Filter <glassfish home> \n");
            System.out.println("Help: missingId for generate list of Ids which has diagnostic info missing.\n");
            System.out.println("Help: masterId for generate master list of Ids.\n");
        } else {

            gfHome = args[0];

            File tempFile = new File(gfHome);
            if (tempFile == null || !tempFile.isDirectory()) {
                isGfHome = false;
            }

            if (args[1].equals("missingId")) {
                missingIds = true;
            }

            if (args[1].equals("masterId")) {
                masterIds = true;
            }

			if (!masterIds && !missingIds) {
				System.out.println("Missing Inputs...<missingId/masterId> value is missing as second argument.");
			} else
            if (!isGfHome) {
                System.out.println("Missing Inputs...<glassfish home> value is not proper as first argument.");                
            } else {

                FilenameFilter fnm = new FilenameFilter() {
                    public boolean accept(File dir, String filename) {
                        return filename.equals("LogStrings.properties");
                    }
                };

                Collection<File> myCollection = new Filter().listFiles(new File(args[0]), fnm, true);
                //System.out.println(myCollection.size());

                if (masterIds) {
                    for (File myFile : myCollection) {
                        new Filter().readFileToGetMessageIds(myFile);
                    }
                    new Filter().writeKeyToFile(myMessageIds, "master-list-message-ids.txt");
                }                

                if (missingIds) {
                    for (File myFile : myCollection) {
                        new Filter().readFileToGetMissingDiagnosticInfo(myFile);
                    }
                    new Filter().writeKeyToFile(myMissingMessageIds, "missing-diagnostic-message-ids.txt");
                }
            }
        }

    }

}