com.comcast.cdn.traffic_control.traffic_monitor.wicket.components.StatusPanel.java Source code

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Here is the source code for com.comcast.cdn.traffic_control.traffic_monitor.wicket.components.StatusPanel.java

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/*
 * Copyright 2015 Comcast Cable Communications Management, LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.comcast.cdn.traffic_control.traffic_monitor.wicket.components;

import java.text.DateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.TimeZone;

import org.apache.wicket.ajax.AjaxSelfUpdatingTimerBehavior;
import org.apache.wicket.ajax.json.JSONObject;
import org.apache.wicket.markup.html.WebMarkupContainer;
import org.apache.wicket.markup.html.basic.Label;
import org.apache.wicket.markup.html.list.ListItem;
import org.apache.wicket.markup.html.list.ListView;
import org.apache.wicket.markup.html.panel.Panel;
import org.apache.wicket.model.AbstractReadOnlyModel;
import org.apache.wicket.model.Model;
import org.apache.wicket.util.time.Duration;

import com.comcast.cdn.traffic_control.traffic_monitor.health.CacheWatcher;
import com.comcast.cdn.traffic_control.traffic_monitor.publish.Stats;

public class StatusPanel extends Panel {
    private static final long serialVersionUID = 1L;

    public StatusPanel(final String id) {
        super(id);
        final WebMarkupContainer c = new WebMarkupContainer("container");
        add(c);

        //      final Model<String> count = new Model<String>("0");
        c.add(new Clock("clock", TimeZone.getTimeZone("America/Denver")));
        c.add(new AjaxSelfUpdatingTimerBehavior(Duration.seconds(1)));

        final ListView<Model<String>> props = new ListView<Model<String>>("props", CacheWatcher.getProps()) {
            private static final long serialVersionUID = 1L;

            @Override
            protected void populateItem(final ListItem<Model<String>> item) {
                final Model<String> val = item.getModelObject();
                item.add(new Label("value", val));
            }
        };
        c.add(props);

        final JSONObject stats = Stats.getVersionInfo().optJSONObject("stats");
        final String[] keys = (stats == null || stats.length() == 0) ? new String[0] : JSONObject.getNames(stats);
        final ListView<String> props2 = new ListView<String>("versionInfo", Arrays.asList(keys)) {
            private static final long serialVersionUID = 1L;

            @Override
            protected void populateItem(final ListItem<String> item) {
                final String key = item.getModelObject();
                item.add(new Label("key", key));
                item.add(new Label("value", new Model<String>() {
                    private static final long serialVersionUID = 1L;

                    @Override
                    public String getObject() {
                        JSONObject stats = Stats.getVersionInfo().optJSONObject("stats");
                        return stats.optString(key);
                    }
                }));
            }
        };
        c.add(props2);
    }

    static class Clock extends Label {
        private static final long serialVersionUID = 1L;

        public Clock(final String id, final TimeZone tz) {
            super(id, new ClockModel(tz));
        }

        private static class ClockModel extends AbstractReadOnlyModel<String> {
            private static final long serialVersionUID = 1L;
            private final DateFormat df;

            public ClockModel(final TimeZone tz) {
                df = DateFormat.getDateTimeInstance(DateFormat.FULL, DateFormat.LONG);
                df.setTimeZone(tz);
            }

            @Override
            public String getObject() {
                return df.format(new Date());
            }
        }
    }

}