Examples with JsonElement dontweave.gson.JsonElement used on opensource projects

Example 1 with JsonElement

use of dontweave.gson.JsonElement in project h2o-2 by h2oai.

the class WebAPI method exportModel.

/**
   * Exports a model to a JSON file.
   */
static void exportModel() throws Exception {
    HttpClient client = new HttpClient();
    GetMethod get = new GetMethod(URL + "/2/ExportModel.json?model=MyInitialNeuralNet");
    int status = client.executeMethod(get);
    if (status != 200)
        throw new Exception(get.getStatusText());
    JsonObject response = (JsonObject) new JsonParser().parse(new InputStreamReader(get.getResponseBodyAsStream()));
    JsonElement model = response.get("model");
    JsonWriter writer = new JsonWriter(new FileWriter(JSON_FILE));
    writer.setLenient(true);
    writer.setIndent("  ");
    Streams.write(model, writer);
    writer.close();
    get.releaseConnection();
}

Example 2 with JsonElement

use of dontweave.gson.JsonElement in project h2o-2 by h2oai.

the class RequestStatics method encodeRedirectArgs.

protected static String encodeRedirectArgs(JsonObject args, Object[] args2) {
    if (args == null && args2 == null)
        return "";
    if (args2 != null) {
        StringBuilder sb = new StringBuilder();
        // Must be field-name / value pairs
        assert (args2.length & 1) == 0 : "Number of arguments shoud be power of 2.";
        for (int i = 0; i < args2.length; i += 2) {
            sb.append(i == 0 ? '?' : '&').append(args2[i]).append('=');
            try {
                sb.append(URLEncoder.encode(args2[i + 1].toString(), "UTF-8"));
            } catch (UnsupportedEncodingException ex) {
                throw Log.errRTExcept(ex);
            }
        }
        return sb.toString();
    }
    StringBuilder sb = new StringBuilder();
    sb.append("?");
    for (Map.Entry<String, JsonElement> entry : args.entrySet()) {
        JsonElement e = entry.getValue();
        if (sb.length() != 1)
            sb.append("&");
        sb.append(entry.getKey());
        sb.append("=");
        try {
            sb.append(URLEncoder.encode(e.getAsString(), "UTF-8"));
        } catch (UnsupportedEncodingException ex) {
            throw Log.errRTExcept(ex);
        }
    }
    return sb.toString();
}

Example 3 with JsonElement

use of dontweave.gson.JsonElement in project h2o-2 by h2oai.

the class Jobs method serve.

@Override
protected Response serve() {
    JsonObject result = new JsonObject();
    JsonArray array = new JsonArray();
    Job[] jobs = Job.all();
    for (int i = jobs.length - 1; i >= 0; i--) {
        JsonObject json = new JsonObject();
        json.addProperty(KEY, jobs[i].self().toString());
        json.addProperty(DESCRIPTION, jobs[i].description);
        json.addProperty(DEST_KEY, jobs[i].dest() != null ? jobs[i].dest().toString() : "");
        json.addProperty(START_TIME, RequestBuilders.ISO8601.get().format(new Date(jobs[i].start_time)));
        long end = jobs[i].end_time;
        JsonObject jobResult = new JsonObject();
        Job job = jobs[i];
        boolean cancelled;
        if (cancelled = (job.state == JobState.CANCELLED || job.state == JobState.FAILED)) {
            if (job.exception != null) {
                jobResult.addProperty("exception", "1");
                jobResult.addProperty("val", jobs[i].exception);
            } else {
                jobResult.addProperty("val", "CANCELLED");
            }
        } else if (job.state == JobState.DONE)
            jobResult.addProperty("val", "OK");
        json.addProperty(END_TIME, end == 0 ? "" : RequestBuilders.ISO8601.get().format(new Date(end)));
        json.addProperty(PROGRESS, job.state == JobState.RUNNING || job.state == JobState.DONE ? jobs[i].progress() : -1);
        json.addProperty(PROGRESS, end == 0 ? (cancelled ? -2 : jobs[i].progress()) : (cancelled ? -2 : -1));
        json.addProperty(CANCELLED, cancelled);
        json.add("result", jobResult);
        array.add(json);
    }
    result.add(JOBS, array);
    Response r = Response.done(result);
    r.setBuilder(JOBS, new ArrayBuilder() {

        @Override
        public String caption(JsonArray array, String name) {
            return "";
        }
    });
    r.setBuilder(JOBS + "." + KEY, new ArrayRowElementBuilder() {

        @Override
        public String elementToString(JsonElement elm, String contextName) {
            String html;
            if (!Job.isRunning(Key.make(elm.getAsString())))
                html = "<button disabled class='btn btn-mini'>X</button>";
            else {
                String keyParam = KEY + "=" + elm.getAsString();
                html = "<a href='/Cancel.html?" + keyParam + "'><button class='btn btn-danger btn-mini'>X</button></a>";
            }
            return html;
        }
    });
    r.setBuilder(JOBS + "." + DEST_KEY, new ArrayRowElementBuilder() {

        @Override
        public String elementToString(JsonElement elm, String contextName) {
            String str = elm.getAsString();
            String key = null;
            try {
                key = URLEncoder.encode(str, "UTF-8");
            } catch (UnsupportedEncodingException e) {
                key = str;
            }
            return ("".equals(key) || DKV.get(Key.make(str)) == null) ? key : Inspector.link(str, str);
        }
    });
    r.setBuilder(JOBS + "." + START_TIME, new ArrayRowElementBuilder() {

        @Override
        public String elementToString(JsonElement elm, String contextName) {
            return date(elm.toString());
        }
    });
    r.setBuilder(JOBS + "." + END_TIME, new ArrayRowElementBuilder() {

        @Override
        public String elementToString(JsonElement elm, String contextName) {
            return date(elm.toString());
        }
    });
    r.setBuilder(JOBS + "." + PROGRESS, new ArrayRowElementBuilder() {

        @Override
        public String elementToString(JsonElement elm, String contextName) {
            return progress(Float.parseFloat(elm.getAsString()));
        }
    });
    r.setBuilder(JOBS + "." + "result", new ElementBuilder() {

        @Override
        public String objectToString(JsonObject obj, String contextName) {
            if (obj.has("exception")) {
                String rid = Key.make().toString();
                String ex = obj.get("val").getAsString().replace("'", "");
                String[] lines = ex.split("\n");
                StringBuilder sb = new StringBuilder(lines[0]);
                for (int i = 1; i < lines.length; ++i) {
                    sb.append("\\n" + lines[i]);
                }
                //          ex = ex.substring(0,ex.indexOf('\n'));
                ex = sb.toString();
                String res = "\n<a onClick=\"" + "var showhide=document.getElementById('" + rid + "');" + "if(showhide.innerHTML == '') showhide.innerHTML = '<pre>" + ex + "</pre>';" + "else showhide.innerHTML = '';" + "\">FAILED</a>\n<div id='" + rid + "'></div>\n";
                return res;
            } else if (obj.has("val")) {
                return obj.get("val").getAsString();
            }
            return "";
        }

        @Override
        public String build(String elementContents, String elementName) {
            return "<td>" + elementContents + "</td>";
        }
    });
    return r;
}

Example 4 with JsonElement

use of dontweave.gson.JsonElement in project h2o-2 by h2oai.

the class Models method whitelistJsonObject.

private static Map whitelistJsonObject(JsonObject unfiltered, Set<String> whitelist) {
    // If we create a new JsonObject here and serialize it the key/value pairs are inside
    // a superflouous "members" object, so create a Map instead.
    JsonObject filtered = new JsonObject();
    Set<Map.Entry<String, JsonElement>> entries = unfiltered.entrySet();
    for (Map.Entry<String, JsonElement> entry : entries) {
        String key = entry.getKey();
        if (whitelist.contains(key))
            filtered.add(key, entry.getValue());
    }
    return gson.fromJson(gson.toJson(filtered), Map.class);
}

Example 5 with JsonElement

use of dontweave.gson.JsonElement in project h2o-2 by h2oai.

the class SpeeDRFModel method buildCM.

public void buildCM(StringBuilder sb) {
    int tasks = this.N;
    int finished = this.size();
    int modelSize = tasks * 25 / 100;
    modelSize = modelSize == 0 || finished == tasks ? finished : modelSize * (finished / modelSize);
    if (confusion != null && confusion.valid() && modelSize > 0) {
        //finished += 1;
        JsonObject cm = new JsonObject();
        JsonArray cmHeader = new JsonArray();
        JsonArray matrix = new JsonArray();
        cm.addProperty(JSON_CM_TYPE, oobee ? "OOB" : "training");
        cm.addProperty(JSON_CM_CLASS_ERR, confusion.classError());
        cm.addProperty(JSON_CM_ROWS_SKIPPED, confusion.skippedRows());
        cm.addProperty(JSON_CM_ROWS, confusion.rows());
        // create the header
        for (String s : cfDomain(confusion, 1024)) cmHeader.add(new JsonPrimitive(s));
        cm.add(JSON_CM_HEADER, cmHeader);
        // add the matrix
        final int nclasses = confusion.dimension();
        JsonArray classErrors = new JsonArray();
        for (int crow = 0; crow < nclasses; ++crow) {
            JsonArray row = new JsonArray();
            int classHitScore = 0;
            for (int ccol = 0; ccol < nclasses; ++ccol) {
                row.add(new JsonPrimitive(confusion.matrix(crow, ccol)));
                if (crow != ccol)
                    classHitScore += confusion.matrix(crow, ccol);
            }
            // produce infinity members in case of 0.f/0
            classErrors.add(new JsonPrimitive((float) classHitScore / (classHitScore + confusion.matrix(crow, crow))));
            matrix.add(row);
        }
        cm.add(JSON_CM_CLASSES_ERRORS, classErrors);
        cm.add(JSON_CM_MATRIX, matrix);
        cm.addProperty(JSON_CM_TREES, modelSize);
        // Signal end only and only if all trees were generated and confusion matrix is valid
        DocGen.HTML.section(sb, "Confusion Matrix:");
        if (cm.has(JSON_CM_MATRIX)) {
            sb.append("<dl class='dl-horizontal'>");
            sb.append("<dt>classification error</dt><dd>").append(String.format("%5.5f %%", 100 * cm.get(JSON_CM_CLASS_ERR).getAsFloat())).append("</dd>");
            long rows = cm.get(JSON_CM_ROWS).getAsLong();
            long skippedRows = cm.get(JSON_CM_ROWS_SKIPPED).getAsLong();
            sb.append("<dt>used / skipped rows </dt><dd>").append(String.format("%d / %d (%3.1f %%)", rows, skippedRows, (double) skippedRows * 100 / (skippedRows + rows))).append("</dd>");
            sb.append("<dt>trees used</dt><dd>").append(cm.get(JSON_CM_TREES).getAsInt()).append("</dd>");
            sb.append("</dl>");
            sb.append("<table class='table table-striped table-bordered table-condensed'>");
            sb.append("<tr style='min-width: 60px;'><th style='min-width: 60px;'>Actual \\ Predicted</th>");
            JsonArray header = (JsonArray) cm.get(JSON_CM_HEADER);
            for (JsonElement e : header) sb.append("<th style='min-width: 60px;'>").append(e.getAsString()).append("</th>");
            sb.append("<th style='min-width: 60px;'>Error</th></tr>");
            int classes = header.size();
            long[] totals = new long[classes];
            JsonArray matrix2 = (JsonArray) cm.get(JSON_CM_MATRIX);
            long sumTotal = 0;
            long sumError = 0;
            for (int crow = 0; crow < classes; ++crow) {
                JsonArray row = (JsonArray) matrix2.get(crow);
                long total = 0;
                long error = 0;
                sb.append("<tr style='min-width: 60px;'><th style='min-width: 60px;'>").append(header.get(crow).getAsString()).append("</th>");
                for (int ccol = 0; ccol < classes; ++ccol) {
                    long num = row.get(ccol).getAsLong();
                    total += num;
                    totals[ccol] += num;
                    if (ccol == crow) {
                        sb.append("<td style='background-color:LightGreen; min-width: 60px;'>");
                    } else {
                        sb.append("<td styile='min-width: 60px;'>");
                        error += num;
                    }
                    sb.append(num);
                    sb.append("</td>");
                }
                sb.append("<td style='min-width: 60px;'>");
                sb.append(String.format("%.05f = %,d / %d", (double) error / total, error, total));
                sb.append("</td></tr>");
                sumTotal += total;
                sumError += error;
            }
            sb.append("<tr style='min-width: 60px;'><th style='min-width: 60px;'>Totals</th>");
            for (long total : totals) sb.append("<td style='min-width: 60px;'>").append(total).append("</td>");
            sb.append("<td style='min-width: 60px;'><b>");
            sb.append(String.format("%.05f = %,d / %d", (double) sumError / sumTotal, sumError, sumTotal));
            sb.append("</b></td></tr>");
            sb.append("</table>");
        } else {
            sb.append("<div class='alert alert-info'>");
            sb.append("Confusion matrix is being computed into the key:</br>");
            sb.append(cm.get(JSON_CONFUSION_KEY).getAsString());
            sb.append("</div>");
        }
    }
}