Example usage for java.util.concurrent ForkJoinPool isQuiescent

List of usage examples for java.util.concurrent ForkJoinPool isQuiescent

Introduction

In this page you can find the example usage for java.util.concurrent ForkJoinPool isQuiescent.

Prototype

public boolean isQuiescent() 

Source Link

Document

Returns true if all worker threads are currently idle.

Usage

From source file:com.hygenics.parser.ParseDispatcher.java

/**
 * Fork/Join Pool Solution Maximizes Speed. JSon increases ease of use
 * /*from   w ww .ja va 2 s . co m*/
 */
public void run() {
    log.info("Starting Clock and Parsing @" + Calendar.getInstance().getTime().toString());
    long t = Calendar.getInstance().getTimeInMillis();
    int pid = 0;
    int id = 0;
    int checkattempts = 0;
    String add = null;

    this.schema = Properties.getProperty(this.schema);
    this.select = Properties.getProperty(this.select);
    this.extracondition = Properties.getProperty(this.extracondition);
    this.column = Properties.getProperty(this.column);

    ArrayList<String> parsedrows = new ArrayList<String>();

    Set<Callable<String>> collect = new HashSet<Callable<String>>();
    List<Future<String>> futures;

    List<Future<ArrayList<String>>> qfutures;
    Set<Callable<ArrayList<String>>> qcollect = new HashSet<Callable<ArrayList<String>>>(4);

    ForkJoinPool fjp = new ForkJoinPool((int) Math.ceil(Runtime.getRuntime().availableProcessors() * procnum));

    if (schema != null) {
        createTables();
    }

    boolean run = true;
    String condition;
    int w = 0;
    int start = offset;
    int chunksize = (int) Math.ceil(pullsize / qnum);

    // attempt to query the database from multiple threads
    do {
        // query for pages
        pages = new ArrayList<String>(pullsize);
        log.info("Looking for Pages.");
        for (int conn = 0; conn < qnum; conn++) {
            // create condition
            condition = " WHERE " + pullid + " >= " + (start + (conn * chunksize)) + " AND " + pullid + " < "
                    + Integer.toString(start + (chunksize * (conn + 1)));

            if (extracondition != null) {
                condition += " " + extracondition.trim();
            }

            // get queries
            qcollect.add(new SplitQuery(template, (select + condition)));
            log.info("Fetching " + select + condition);
        }
        start += (chunksize * qnum);

        qfutures = fjp.invokeAll(qcollect);

        w = 0;
        while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
            w++;
        }
        log.info("Waited for " + w + " cycles");

        for (Future<ArrayList<String>> f : qfutures) {
            try {

                ArrayList<String> test = f.get();
                if (test != null) {
                    if (test.size() > 0) {
                        pages.addAll(test);
                    }
                }

                if (f.isDone() == false) {
                    f.cancel(true);
                }

                f = null;
            } catch (Exception e) {
                log.warn("Encoding Error!");
                e.printStackTrace();
            }
        }
        qcollect = new HashSet<Callable<ArrayList<String>>>(4);
        qfutures = null;
        log.info("Finished Getting Pages");

        // if no records then get records that may have been dropped
        if (pages.size() == 0 && checkstring != null && checkstring.trim().length() > 0
                && checkattempts < reattempts) {
            checkattempts += 1;
            log.info("Checking for Drops");
            qcollect.add(new SplitQuery(template, (checkstring)));
            qfutures = fjp.invokeAll(qcollect);

            w = 0;
            while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
                w++;
            }
            log.info("Waited for " + w + " cycles");

            for (Future<ArrayList<String>> f : qfutures) {
                try {

                    ArrayList<String> test = f.get();
                    if (test != null) {
                        if (test.size() > 0) {
                            pages.addAll(test);
                        }
                    }

                    if (f.isDone() == false) {
                        f.cancel(true);
                    }

                    f = null;
                } catch (Exception e) {
                    log.warn("Encoding Error!");
                    e.printStackTrace();
                }
            }
            qfutures = null;
            qcollect = new HashSet<Callable<ArrayList<String>>>(4);

        } else if (checkattempts >= reattempts) {
            pages.clear();
        }

        log.info("Found " + pages.size() + " records!");

        // get hashes if necessary
        if (getHash) {
            log.info("Hashing " + pages.size() + " Records");

            ArrayList<String> hashedrows = new ArrayList<String>();
            for (String row : pages) {

                collect.add(new CreateHash(row, pid));
                pid++;

            }

            log.info("Invoking");
            futures = fjp.invokeAll(collect);

            w = 0;
            while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
                w++;
            }

            log.info("Waited " + w + " Cycles!");

            for (Future<String> f : futures) {
                if (f != null) {
                    String json;
                    try {
                        json = f.get(termtime, TimeUnit.MILLISECONDS);

                        if (json != null) {
                            hashedrows.add(json);
                        }

                    } catch (Exception e) {
                        log.warn("Encoding Error!");
                        e.printStackTrace();
                    }
                }

            }
            log.info("Hashed " + hashedrows.size() + " Records!");
            pages = hashedrows;

            collect = new HashSet<Callable<String>>(pullsize);
            futures.clear();
            log.info("Completed Hashing");
        }

        log.info("Performing Regex");
        // handle single patterns
        int i = 0;
        if (singlepats != null) {

            log.info("Found Singlepats");
            int subs = 0;
            int rows = 0;
            for (String row : pages) {
                rows += 1;
                String inrow = row;
                try {

                    inrow = inrow.replaceAll("\t|\r|\r\n|\n", "");

                    Map<String, Json> jmap = Json.read(inrow).asJsonMap();

                    if (singlepats.containsKey("table")) {
                        subs += 1;

                        if (fjp.isShutdown()) {
                            fjp = new ForkJoinPool((Runtime.getRuntime().availableProcessors() * procnum));
                        }

                        if (jmap.get(column) != null) {

                            if (test) {
                                System.out.println("//////////////////////HTML////////////////////////\n"
                                        + jmap.get(column).asString()
                                        + "\n///////////////////////////////END///////////////////////////\n\n");
                            }

                            if (mustcontain != null) {
                                if (jmap.get(column).asString().contains(mustcontain)) {
                                    if (cannotcontain != null) {
                                        if (jmap.get(column).asString().contains(cannotcontain) == false)
                                            collect.add(new ParsePage(unescape, replacementPattern,
                                                    singlepats.get("table"),
                                                    jmap.get(column).asString().replaceAll("\\s\\s", " "),
                                                    singlepats, Calendar.getInstance().getTime().toString(),
                                                    jmap.get("offenderhash").asString()));
                                    } else {
                                        collect.add(new ParsePage(unescape, replacementPattern,
                                                singlepats.get("table"),
                                                jmap.get(column).asString().replaceAll("\\s\\s", " "),
                                                singlepats, Calendar.getInstance().getTime().toString(),
                                                jmap.get("offenderhash").asString()));
                                    }
                                }
                            } else if (cannotcontain != null) {
                                if (jmap.get(column).asString().contains(cannotcontain) == false) {
                                    collect.add(
                                            new ParsePage(unescape, replacementPattern, singlepats.get("table"),
                                                    jmap.get(column).asString().replaceAll("\\s\\s", " "),
                                                    singlepats, Calendar.getInstance().getTime().toString(),
                                                    jmap.get("offenderhash").asString()));
                                }
                            } else {
                                collect.add(new ParsePage(unescape, replacementPattern, singlepats.get("table"),
                                        jmap.get(column).asString().replaceAll("\\s\\s", " "), singlepats,
                                        Calendar.getInstance().getTime().toString(),
                                        jmap.get("offenderhash").asString()));
                            }
                        }
                    }
                    i++;

                    if (((i % commit_size) == 0 & i != 0) || i == pages.size()
                            || pages.size() == 1 && singlepats != null) {
                        log.info("Getting Regex Results");

                        log.info("Getting Tasks");

                        futures = fjp.invokeAll(collect);

                        w = 0;

                        while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
                            w++;
                        }

                        log.info("Waited for " + w + " cycles");

                        for (Future<String> r : futures) {
                            try {

                                add = r.get();
                                if (add.contains("No Data") == false) {
                                    parsedrows.add(add);
                                }

                                add = null;

                            } catch (Exception e) {
                                log.warn("Encoding Error!");
                                e.printStackTrace();
                            }
                        }

                        futures = null;
                        collect = new HashSet<Callable<String>>();

                        if (parsedrows.size() >= commit_size) {
                            log.info("INSERTING " + parsedrows.size() + " records!");
                            if (parsedrows.size() >= SPLITSIZE) {
                                sendToDb(parsedrows, true);
                            } else {
                                sendToDb(parsedrows, false);
                            }

                            parsedrows = new ArrayList<String>(pullsize);
                        }

                        // hint to the gc in case it actually pays off; use
                        // -X:compactexplicitgc to improve odds and
                        // -XX:UseConcMarkSweepGC for improving odds on
                        // older generation strings
                        // (think if i were a gambling man)
                        System.gc();
                        Runtime.getRuntime().gc();
                    }
                } catch (Exception e) {
                    log.warn("Encoding Error!");
                    e.printStackTrace();
                }
            }
            log.info("Submitted " + subs + " records. Found " + rows + " rows");
        }

        log.info("REMAINING ROWS TO COMMIT " + parsedrows.size());
        log.info("Rows Left" + parsedrows.size());
        if (parsedrows.size() > 0) {

            if (parsedrows.size() >= SPLITSIZE) {
                sendToDb(parsedrows, true);
            } else {
                sendToDb(parsedrows, false);
            }

            parsedrows = new ArrayList<String>();
        }

        // handle multi patterns
        if (multipats != null) {
            // parse multiple pages for the run
            int subs = 0;
            for (String row : pages) {
                try {
                    for (String k : multipats.keySet()) {
                        if (fjp.isShutdown()) {

                            fjp = new ForkJoinPool(Runtime.getRuntime().availableProcessors());
                        }

                        Map<String, Json> jmap = Json.read(row).asJsonMap();

                        if (jmap.get(column) != null) {
                            subs += 1;
                            if (test) {
                                System.out.println("//////////////////////HTML////////////////////////\n"
                                        + jmap.get(column).asString()
                                        + "\n///////////////////////////////END///////////////////////////\n\n");
                            }

                            if (mustcontain != null) {
                                if (jmap.get(column).asString().contains(mustcontain)) {
                                    if (cannotcontain != null) {
                                        if (jmap.get(column).asString().contains(cannotcontain) == false) {
                                            collect.add(
                                                    new ParseMultiPage(unescape, replacementPattern, k,
                                                            jmap.get(column).asString().replaceAll("\\s\\s",
                                                                    " "),
                                                            jmap.get("offenderhash").asString(),
                                                            Calendar.getInstance().getTime().toString(),
                                                            multipats.get(k)));
                                        }
                                    } else {
                                        collect.add(new ParseMultiPage(unescape, replacementPattern, k,
                                                jmap.get(column).asString(),
                                                jmap.get("offenderhash").asString().replaceAll("\\s\\s", " "),
                                                Calendar.getInstance().getTime().toString(), multipats.get(k)));
                                    }
                                }
                            } else if (cannotcontain != null) {
                                if (jmap.get(column).asString().contains(cannotcontain) == false) {
                                    collect.add(new ParseMultiPage(unescape, replacementPattern, k,
                                            jmap.get(column).asString().replaceAll("\\s\\s", " "),
                                            jmap.get("offenderhash").asString(),
                                            Calendar.getInstance().getTime().toString(), multipats.get(k)));
                                }

                            } else {
                                collect.add(new ParseMultiPage(unescape, replacementPattern, k,
                                        jmap.get(column).asString().replaceAll("\\s\\s", " "),
                                        jmap.get("offenderhash").asString(),
                                        Calendar.getInstance().getTime().toString(), multipats.get(k)));
                            }
                        }

                        i++;
                        if (((i % commit_size) == 0 & i != 0) || i == pages.size()
                                || pages.size() == 1 && multipats != null) {
                            futures = fjp.invokeAll(collect);
                            w = 0;
                            while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
                                w++;
                            }

                            log.info("Waited " + w + " Cycles");

                            for (Future<String> r : futures) {
                                try {
                                    add = r.get();

                                    if (add.contains("No Data") == false) {

                                        for (String js : add.split("~")) {
                                            parsedrows.add(js);
                                        }
                                    }
                                    add = null;

                                    if (r.isDone() == false) {
                                        r.cancel(true);
                                    }
                                    r = null;

                                } catch (InterruptedException e) {
                                    // TODO Auto-generated catch block
                                    e.printStackTrace();
                                } catch (ExecutionException e) {
                                    // TODO Auto-generated catch block
                                    e.printStackTrace();
                                }
                            }

                            futures = null;
                            collect = new HashSet<Callable<String>>();

                            if (parsedrows.size() >= commit_size) {
                                log.info("INSERTING " + parsedrows.size() + " records!");
                                if (parsedrows.size() >= SPLITSIZE) {
                                    sendToDb(parsedrows, true);
                                } else {
                                    sendToDb(parsedrows, false);
                                }
                                parsedrows = new ArrayList<String>(pullsize);
                            }

                            // hint to the gc in case it actually pays off
                            System.gc();
                            Runtime.getRuntime().gc();
                        }
                    }

                } catch (Exception e) {
                    log.warn("Encoding Error!");
                }

            }
            log.info("Submitted " + subs + " records.");
        }

        // handle looped patterns
        if (loopedpats != null) {
            log.info("Looped Patterns Found");
            int subs = 0;
            if (fjp.isShutdown()) {
                fjp = new ForkJoinPool(Runtime.getRuntime().availableProcessors() * procnum);
            }

            for (String row : pages) {
                try {

                    for (String k : loopedpats.keySet()) {
                        if (fjp.isShutdown()) {
                            fjp = new ForkJoinPool(Runtime.getRuntime().availableProcessors() * procnum);
                        }
                        Map<String, Json> jmap = Json.read(row).asJsonMap();

                        if (jmap.get(column) != null) {
                            subs += 1;
                            if (mustcontain != null) {
                                if (jmap.get(column).asString().contains(mustcontain)) {
                                    if (cannotcontain != null) {
                                        if (jmap.get(column).asString().contains(cannotcontain) == false) {
                                            collect.add(
                                                    new LoopRegex(unescape,
                                                            jmap.get(column).asString().replaceAll("\\s\\s",
                                                                    " "),
                                                            jmap.get("offenderhash").asString(),
                                                            Calendar.getInstance().getTime().toString(), k,
                                                            replacementPattern, loopedpats.get(k), test));
                                        }
                                    } else {
                                        collect.add(new LoopRegex(unescape,
                                                jmap.get(column).asString().replaceAll("\\s\\s", " "),
                                                jmap.get("offenderhash").asString(),
                                                Calendar.getInstance().getTime().toString(), k,
                                                replacementPattern, loopedpats.get(k), test));
                                    }
                                }
                            } else if (cannotcontain != null) {
                                if (jmap.get(column).asString().contains(cannotcontain) == false) {
                                    collect.add(new LoopRegex(unescape,
                                            jmap.get(column).asString().replaceAll("\\s\\s", " "),
                                            jmap.get("offenderhash").asString(),
                                            Calendar.getInstance().getTime().toString(), k, replacementPattern,
                                            loopedpats.get(k), test));
                                }
                            } else {
                                collect.add(new LoopRegex(unescape,
                                        jmap.get(column).asString().replaceAll("\\s\\s", " "),
                                        jmap.get("offenderhash").asString(),
                                        Calendar.getInstance().getTime().toString(), k, replacementPattern,
                                        loopedpats.get(k), test));
                            }
                            jmap.remove(k);
                        }
                        i++;
                        if (((i % commit_size) == 0 & i != 0) || (i % (pages.size() - 1)) == 0
                                || pages.size() == 1) {

                            futures = fjp.invokeAll(collect);

                            w = 0;

                            while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
                                w++;
                            }
                            log.info("Waited " + w + " Cycles");

                            for (Future<String> r : futures) {
                                try {
                                    add = r.get();
                                    if (add.contains("No Data") == false) {
                                        for (String toarr : add.split("~")) {
                                            parsedrows.add(toarr);
                                        }
                                    }

                                    if (r.isDone() == false) {
                                        r.cancel(true);
                                    }
                                    add = null;

                                } catch (Exception e) {
                                    log.warn("Encoding Error!");
                                    e.printStackTrace();
                                }
                            }

                            futures = null;
                            collect = new HashSet<Callable<String>>();

                            // hint to the gc in case it actually pays off
                            System.gc();
                            Runtime.getRuntime().gc();
                        }
                    }

                    if (parsedrows.size() >= this.commit_size) {
                        log.info("INSERTING " + parsedrows.size() + " records!");
                        if (parsedrows.size() >= SPLITSIZE) {
                            sendToDb(parsedrows, true);
                        } else {
                            sendToDb(parsedrows, false);
                        }

                        parsedrows = new ArrayList<String>(pullsize);
                    }

                } catch (Exception e) {
                    log.warn("Encoding Error!");
                }
            }
            log.info("Submitted " + subs + " records.");
        }

        if (collect.size() > 0) {
            log.info("Getting Last Regex Results for Iteration");

            log.info("Getting Tasks");

            futures = fjp.invokeAll(collect);

            w = 0;

            while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
                w++;
            }

            log.info("Waited for " + w + " cycles");

            for (Future<String> r : futures) {
                try {

                    add = r.get();
                    if (add.contains("No Data") == false) {
                        parsedrows.add(add);
                    }

                    add = null;

                } catch (Exception e) {
                    log.warn("Encoding Error!");
                    e.printStackTrace();
                }
            }

            futures = null;
            collect = new HashSet<Callable<String>>(pullsize);
            // hint to the gc in case it actually pays off; use
            // -X:compactexplicitgc to improve odds and
            // -XX:UseConcMarkSweepGC for improving odds on older generation
            // strings
            // (think if i were a gambling man)
            System.gc();
            Runtime.getRuntime().gc();
        }

        log.info("REMAINING ROWS TO COMMIT " + parsedrows.size());
        log.info("Rows Left" + parsedrows.size());
        if (parsedrows.size() > 0) {

            if (parsedrows.size() >= SPLITSIZE) {
                sendToDb(parsedrows, true);
            } else {
                sendToDb(parsedrows, false);
            }

            parsedrows = new ArrayList<String>();
        }

    } while (pages != null && pages.size() > 0);

    // ensure that nothing is still caught in limbo
    // final parser to ensure that nothing is left out
    if (collect.size() > 0) {
        log.info("More Rows Caught in FJP, Completing Process");
        futures = fjp.invokeAll(collect);

        w = 0;

        while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
            w++;
        }
        log.info("Waited " + w + " Cycles");

        for (Future<String> r : futures) {
            try {
                add = r.get();

                if (add.contains("No Data") == false) {

                    for (String js : add.split("~")) {
                        parsedrows.add(js);
                    }
                }
                add = null;

                if (r.isDone() == false) {
                    r.cancel(true);
                }
                r = null;

            } catch (InterruptedException e) {
                e.printStackTrace();
            } catch (ExecutionException e) {
                e.printStackTrace();
            }
        }

        futures = null;
        collect = null;
    }

    // send any remaining parsed rows to the db
    if (parsedrows.size() > 0) {

        if (parsedrows.size() >= SPLITSIZE) {
            sendToDb(parsedrows, true);
        } else {
            sendToDb(parsedrows, false);
        }

        parsedrows = new ArrayList<String>();
    }

    log.info("Shutting Down Fork Join Pool");
    if (fjp.isShutdown() == false) {
        fjp.shutdownNow();
    }

    fjp = null;

    log.info("Complete @" + Calendar.getInstance().getTime().toString());
    log.info("Total Runtime(seconds): "
            + Double.toString((double) (Calendar.getInstance().getTimeInMillis() - t) / 1000));

    // hint to the gc in case it actually pays off
    System.gc();
    Runtime.getRuntime().gc();
}

From source file:com.hygenics.parser.GetImages.java

private void addFromFile() {
    File f = new File(fpath);
    ForkJoinPool fjp = new ForkJoinPool(Runtime.getRuntime().availableProcessors());
    ArrayList<String> imageData = new ArrayList<String>();
    int size = (int) Math.ceil(commitsize / numqueries);

    if (f.exists()) {
        // get the image data
        File[] list = f.listFiles();
        int curr = 0;
        if (list != null) {
            for (File img : list) {
                curr += 1;//from   w  w w .  j ava 2 s  . c o  m
                if (img.isDirectory() == false
                        && (img.getName().contains(".bmp") || img.getName().toLowerCase().contains(".jpg")
                                || img.getName().toLowerCase().contains(".png")
                                || img.getName().toLowerCase().contains("jpeg"))) {
                    try {
                        if (dbcondition == null
                                || template
                                        .getJsonData(dbcondition.replace("$IMAGE$",
                                                img.getName().replaceAll("(?mis)" + imagepostfix, "")))
                                        .size() > 0) {
                            BufferedImage bi = ImageIO.read(img);// only
                            // used
                            // to
                            // ensure
                            // that
                            // this
                            // is an
                            // image
                            JsonObject jobj = new JsonObject();
                            jobj.add("offenderhash", img.getName().replaceAll("(?mis)" + imagepostfix, ""));// assumes
                            // hash
                            // is
                            // file
                            // name+postfix
                            jobj.add("image", img.getName().replaceAll("(?mis)" + imagepostfix, ""));
                            jobj.add("image_path", img.getName());
                            jobj.add("table", table);
                            jobj.add("date", Calendar.getInstance().getTime().toString());
                            imageData.add(jobj.toString());
                        }
                    } catch (IOException e) {
                        log.info(img.getName() + " is not an Image!");
                        e.printStackTrace();
                    } catch (Exception e) {
                        log.info("Error in Posting to Database.");
                        e.printStackTrace();
                    }
                }

                // post if > commitsize
                if (imageData.size() >= commitsize || curr == list.length) {
                    log.info("Posting to DB @ " + Calendar.getInstance().getTime().toString());
                    for (int i = 0; i < numqueries; i++) {
                        if (((i + 1) * size) < imageData.size()) {
                            fjp.execute(new ImagePost(imageData.subList((i * size), ((i + 1) * size))));
                        } else {
                            fjp.execute(new ImagePost(imageData.subList((i * size), imageData.size())));
                        }
                    }

                    int w = 0;
                    while (fjp.isQuiescent() == false && fjp.getActiveThreadCount() > 0) {
                        w++;
                    }
                    log.info("Waited for " + w + " cycles");
                    imageData.clear();
                    log.info("Finished Posting to DB @ " + Calendar.getInstance().getTime().toString());
                }
            }
        }

    } else {
        log.error("File Path does Not Exist.Please Check Image Pull!");
    }
    fjp.shutdown();
    fjp = null;
}

From source file:com.hygenics.parser.JDump.java

private void toFile() {
    ArrayList<String> archs = new ArrayList<String>();
    List<Future<ArrayList<String>>> qfutures;
    Set<Callable<ArrayList<String>>> qcollect = new HashSet<Callable<ArrayList<String>>>(4);

    ForkJoinPool fjp = new ForkJoinPool((int) Math.ceil(Runtime.getRuntime().availableProcessors() * procnum));

    int dumped = 0;

    if (archive) {
        log.info("Cleaning");
        for (String k : fpaths.keySet()) {
            String fpath = "";

            for (String ofp : fpaths.get(k).keySet()) {
                fpath = ofp;/*from  w  ww  . jav  a2 s .c o  m*/
            }

            if (fpath.length() > 0) {
                String[] barr = fpath.split("\\/");
                String basefile = "";
                Archiver zip = new Archiver();
                for (int i = 0; i > barr.length - 1; i++) {
                    basefile += (i == 0) ? barr[i] : "/" + barr[i];
                }
                if (basefile.trim().length() > 0) {
                    zip.setBasedirectory(basefile);
                    zip.setZipDirectory(basefile + "archive.zip");
                    zip.setAvoidanceString(".zip|archive");
                    zip.setDelFiles(true);
                    zip.run();
                }
            }
        }
    }

    log.info("Dumping");
    for (String table : fpaths.keySet()) {
        int offset = 0;
        if (template.checkTable(table, table.split("\\.")[0])) {
            if (template.getCount(table) > 0) {
                log.info("Dumping for " + table);
                // get header
                String select = "SELECT * FROM " + table;
                String fpath = null;
                ArrayList<String> jsons;
                String condition;
                int w = 0;
                int start = offset;
                int chunksize = (int) Math.ceil(pullsize / qnum);

                // get fpath
                for (String ofp : fpaths.get(table).keySet()) {
                    start = fpaths.get(table).get(ofp);
                    fpath = ofp;
                }

                // perform write
                if (headers != null && fpath != null) {
                    List<String> headersList = headers.get(table);

                    String output = null;
                    boolean existed = true;

                    if (addFileDate) {
                        fpath = fpath
                                + Calendar.getInstance().getTime().toString().trim().replaceAll(":|\\s", "")
                                + ".txt";
                    }

                    // check to see if file should be created
                    if (!new File(fpath).exists()) {

                        try {
                            new File(fpath).createNewFile();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                        existed = false;
                    }

                    // check to see if file must be recreated
                    if (!append) {

                        File f = new File(fpath);
                        f.delete();
                        try {
                            f.createNewFile();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }

                    if (headersList != null && (append == false || existed == false)) {
                        for (String header : headersList) {
                            output = (output == null) ? StringEscapeUtils.unescapeXml(header)
                                    : output + delimeter + StringEscapeUtils.unescapeXml(header);
                        }
                    }

                    do {

                        // get records
                        jsons = new ArrayList<String>(pullsize);
                        log.info("Looking for Pages.");
                        for (int conn = 0; conn < qnum; conn++) {
                            // create condition
                            condition = " WHERE " + pullid + " >= " + (start + (conn * chunksize)) + " AND "
                                    + pullid + " < " + Integer.toString(start + (chunksize * (conn + 1)));

                            if (extracondition != null) {
                                condition += " " + extracondition.trim();
                            }

                            // get queries
                            qcollect.add(new SplitQuery(template, (select + condition)));
                            log.info("Fetching " + select + condition);
                        }

                        start += (chunksize * qnum);

                        qfutures = fjp.invokeAll(qcollect);

                        w = 0;
                        while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
                            w++;
                        }
                        log.info("Waited for " + w + " cycles");

                        for (Future<ArrayList<String>> f : qfutures) {
                            try {

                                ArrayList<String> test = f.get();
                                if (test != null) {
                                    if (test.size() > 0) {
                                        jsons.addAll(test);
                                    }
                                }

                                if (f.isDone() == false) {
                                    f.cancel(true);
                                }

                                f = null;
                            } catch (Exception e) {
                                log.warn("Encoding Error!");
                                e.printStackTrace();
                            }
                        }
                        qcollect = new HashSet<Callable<ArrayList<String>>>(4);
                        qfutures = null;
                        log.info("Finished Getting Pages");

                        // post records to the file
                        try (FileWriter fw = new FileWriter(new File(fpath), true)) {
                            // get and write headers

                            if (jsons.size() > 0) {
                                fw.write(output + "\n");
                                // write data
                                for (String json : jsons) {
                                    output = null;
                                    JsonObject jo = JsonObject.readFrom(json);
                                    if (jo.size() >= headersList.size()) {// allows
                                        // trimming
                                        // of
                                        // table
                                        // to
                                        // key
                                        // aspects
                                        output = null;

                                        for (String key : headers.get(table)) {

                                            if (jo.get(key.toLowerCase()) != null) {
                                                String data = StringEscapeUtils
                                                        .unescapeXml(jo.get(key.toLowerCase()).asString());

                                                if (replacementPattern != null) {
                                                    data = data.replaceAll(replacementPattern, "");
                                                    data = data.replace(delimeter, delimreplace);
                                                }

                                                output = (output == null)
                                                        ? data.replaceAll("[^\u0020-\u0070 ]+", "")
                                                        : output + delimeter
                                                                + data.replaceAll("[^\u0020-\u0070 ]+", "");
                                            } else {
                                                output += delimeter;
                                            }
                                        }

                                        if (output != null && output.trim().length() > headersList.size()) {
                                            fw.write(output + "\n");
                                        }
                                    } else {
                                        if (jsons.size() == 0) {
                                            Log.info(
                                                    "Number of Headers and Keys from Json Array and Headers List Impossible to Match");
                                            try {
                                                throw new MismatchException(
                                                        "Number of Headers: " + headersList.size()
                                                                + " && Number of Keys: " + jo.size());
                                            } catch (MismatchException e) {
                                                e.printStackTrace();
                                            }
                                        }
                                    }

                                    output = null;
                                }
                            } else {
                                log.info("EOF FOUND! No New Records in This Iteration....Stopping.");
                            }
                        } catch (IOException e) {
                            e.printStackTrace();
                        }

                    } while (jsons.size() > 0);

                } else {
                    try {
                        throw new NullPointerException(
                                "No Headers Input to Class. Please Create the Requisite Map.");
                    } catch (NullPointerException e) {
                        e.printStackTrace();
                    }
                }
                dumped += 1;
            } else {
                try {
                    throw new NoDataException("No Data Found in Table " + table);
                } catch (NoDataException e) {
                    e.printStackTrace();
                }
            }
        } else {
            log.info("Missing Table " + table);
            try {
                throw new NullPointerException("Table " + table + " Does Not Exist!!!");
            } catch (NullPointerException e) {
                e.printStackTrace();
            }
        }
    } // end LOOP

    if (!fjp.isShutdown()) {
        fjp.shutdownNow();
    }

    if (dumped == 0) {
        log.error("No Data Found in Any Table");
        System.exit(-1);
    }
}

From source file:com.hygenics.parser.JDumpWithReference.java

private void toFile() {
    List<Future<ArrayList<String>>> qfutures;
    Set<Callable<ArrayList<String>>> qcollect = new HashSet<Callable<ArrayList<String>>>(4);

    ForkJoinPool fjp = new ForkJoinPool((int) Math.ceil(Runtime.getRuntime().availableProcessors() * procnum));
    int dumped = 0;

    if (archive) {
        log.info("Cleaning");
        for (String k : fpaths.keySet()) {
            String fpath = "";

            for (String ofp : fpaths.get(k).keySet()) {
                fpath = ofp;//from ww  w.  j a v  a  2 s . c  om
            }

            if (fpath.length() > 0) {
                String[] barr = fpath.split("\\/");
                String basefile = "";
                Archiver zip = new Archiver();
                for (int i = 0; i > barr.length - 1; i++) {
                    basefile += (i == 0) ? barr[i] : "/" + barr[i];
                }
                if (basefile.trim().length() > 0) {
                    zip.setBasedirectory(basefile);
                    zip.setZipDirectory(basefile + "archive.zip");
                    zip.setAvoidanceString(".zip|archive");
                    zip.setDelFiles(true);
                    zip.run();
                }
            }
        }
    }

    log.info("Dumping");
    for (String table : fpaths.keySet()) {
        int offset = 0;
        if (template.checkTable(this.baseschema + "." + table, this.baseschema)) {
            if (template.getCount(this.baseschema + "." + table) > 0) {
                log.info("Dumping for " + table);
                // get header
                String select = "SELECT * FROM " + this.baseschema + "." + table;
                String fpath = null;
                ArrayList<String> jsons;
                String condition;
                int w = 0;
                int start = offset;
                int chunksize = (int) Math.ceil(pullsize / qnum);

                // get fpath
                for (String ofp : fpaths.get(table).keySet()) {
                    start = fpaths.get(table).get(ofp);
                    fpath = ofp;
                }

                // perform write
                if (headers != null && fpath != null) {
                    List<String> headersList = headers.get(table);

                    String output = null;
                    boolean existed = true;

                    if (addFileDate) {
                        fpath = fpath
                                + Calendar.getInstance().getTime().toString().trim().replaceAll(":|\\s", "")
                                + ".txt";
                    }

                    // check to see if file should be created
                    if (!new File(fpath).exists()) {

                        try {
                            new File(this.baseFilePath + fpath).createNewFile();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                        existed = false;
                    }

                    // check to see if file must be recreated
                    if (!append) {

                        File f = new File(this.baseFilePath + fpath);
                        f.delete();
                        try {
                            f.createNewFile();
                        } catch (IOException e) {
                            e.printStackTrace();
                        }
                    }

                    if (headersList != null && (append == false || existed == false)) {
                        for (String header : headersList) {
                            output = (output == null) ? StringEscapeUtils.unescapeXml(header)
                                    : output + delimeter + StringEscapeUtils.unescapeXml(header);
                        }
                    }

                    do {

                        // get records
                        jsons = new ArrayList<String>(pullsize);
                        log.info("Looking for Pages.");
                        for (int conn = 0; conn < qnum; conn++) {
                            // create condition
                            condition = " WHERE " + pullid + " >= " + (start + (conn * chunksize)) + " AND "
                                    + pullid + " < " + Integer.toString(start + (chunksize * (conn + 1)));

                            if (extracondition != null) {
                                condition += " " + extracondition.trim();
                            }

                            // get queries
                            qcollect.add(new SplitQuery(template, (select + condition)));
                            log.info("Fetching " + select + condition);
                        }

                        start += (chunksize * qnum);

                        qfutures = fjp.invokeAll(qcollect);

                        w = 0;
                        while (fjp.getActiveThreadCount() > 0 && fjp.isQuiescent() == false) {
                            w++;
                        }
                        log.info("Waited for " + w + " cycles");

                        for (Future<ArrayList<String>> f : qfutures) {
                            try {

                                ArrayList<String> test = f.get();
                                if (test != null) {
                                    if (test.size() > 0) {
                                        jsons.addAll(test);
                                    }
                                }

                                if (f.isDone() == false) {
                                    f.cancel(true);
                                }

                                f = null;
                            } catch (Exception e) {
                                log.warn("Encoding Error!");
                                e.printStackTrace();
                            }
                        }
                        qcollect = new HashSet<Callable<ArrayList<String>>>(4);
                        qfutures = null;
                        log.info("Finished Getting Pages");

                        // post records to the file
                        try (FileWriter fw = new FileWriter(new File(this.baseFilePath + fpath), true)) {
                            // get and write headers

                            if (jsons.size() > 0) {
                                fw.write(output + "\n");
                                // write data
                                for (String json : jsons) {
                                    output = null;
                                    JsonObject jo = JsonObject.readFrom(json);
                                    if (jo.size() >= headersList.size()) {// allows
                                        // trimming
                                        // of
                                        // table
                                        // to
                                        // key
                                        // aspects
                                        output = null;

                                        for (String key : headers.get(table)) {

                                            if (jo.get(key.toLowerCase()) != null) {
                                                String data = StringEscapeUtils
                                                        .unescapeXml(jo.get(key.toLowerCase()).asString());

                                                if (replacementPattern != null) {
                                                    data = data.replaceAll(replacementPattern, "");
                                                    data = data.replace(delimeter, delimreplace);
                                                }

                                                output = (output == null)
                                                        ? data.replaceAll("[^\u0020-\u007E ]+", "")
                                                        : output + delimeter
                                                                + data.replaceAll("[^\u0020-\u007E ]+", "");
                                            } else {
                                                output += delimeter;
                                            }
                                        }

                                        if (output != null && output.trim().length() > headersList.size()) {
                                            fw.write(output + "\n");
                                        }
                                    } else {
                                        if (jsons.size() == 0) {
                                            Log.info(
                                                    "Number of Headers and Keys from Json Array and Headers List Impossible to Match");
                                            try {
                                                throw new MismatchException(
                                                        "Number of Headers: " + headersList.size()
                                                                + " && Number of Keys: " + jo.size());
                                            } catch (MismatchException e) {
                                                e.printStackTrace();
                                            }
                                        }
                                    }

                                    output = null;
                                }
                            } else {
                                log.info("EOF FOUND! No New Records in This Iteration....Stopping.");
                            }
                        } catch (IOException e) {
                            e.printStackTrace();
                        }

                    } while (jsons.size() > 0);

                } else {
                    try {
                        throw new NullPointerException(
                                "No Headers Input to Class. Please Create the Requisite Map.");
                    } catch (NullPointerException e) {
                        e.printStackTrace();
                    }
                }
                dumped += 1;
            } else {
                try {
                    throw new NoDataException("No Data in Table " + table);
                } catch (NoDataException e) {
                    e.printStackTrace();
                }
            }
        } else {
            log.info("Missing Table " + table);
            try {
                throw new NullPointerException("Table " + table + " Does Not Exist!!!");
            } catch (NullPointerException e) {
                e.printStackTrace();
            }
        }
    } // end LOOP

    if (!fjp.isShutdown()) {
        fjp.shutdownNow();
    }

    if (dumped == 0) {
        log.error("No Data found in Any Tables");
        System.exit(-1);
    }
}