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

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Here is the source code for com.comcast.cdn.traffic_control.traffic_monitor.wicket.components.EventLogPanel.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.ArrayList;
import java.util.Date;

import org.apache.log4j.Logger;
import org.apache.wicket.ajax.AjaxSelfUpdatingTimerBehavior;
import org.apache.wicket.ajax.json.JSONException;
import org.apache.wicket.ajax.json.JSONObject;
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.IModel;
import org.apache.wicket.model.Model;
import org.apache.wicket.util.time.Duration;

import com.comcast.cdn.traffic_control.traffic_monitor.health.Event;
import com.comcast.cdn.traffic_control.traffic_monitor.wicket.behaviors.UpdatingAttributeAppender;

public class EventLogPanel extends Panel {
    private static final Logger LOGGER = Logger.getLogger(EventLogPanel.class);
    private static final long serialVersionUID = 1L;

    static final DateFormat formatter = DateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);

    public EventLogPanel(final String id) {
        super(id);

        final IModel<ArrayList<JSONObject>> listModel = new Model<ArrayList<JSONObject>>() {
            private static final long serialVersionUID = 1L;

            @Override
            @SuppressWarnings("PMD")
            public ArrayList<JSONObject> getObject() {
                return new ArrayList<JSONObject>(Event.getEventLog());
            }
        };
        final ListView<JSONObject> propView2 = new ListView<JSONObject>("events", listModel) {
            private static final long serialVersionUID = 1L;

            @Override
            protected void populateItem(final ListItem<JSONObject> item) {
                final JSONObject jo = item.getModelObject();
                String errorClass = "";
                try {
                    item.add(new Label("index", Long.toString(jo.getLong("index"))));
                    //               long time = System.currentTimeMillis();
                    long time = jo.getLong("time");
                    synchronized (formatter) {
                        item.add(new Label("time", formatter.format(new Date(time))));
                    }
                    item.add(new Label("timeraw", Long.toString(jo.getLong("time"))));
                    item.add(new Label("description", jo.getString("description")));
                    item.add(new Label("hostname", jo.getString("hostname")));
                    String status = "available";
                    if (!jo.getBoolean("isAvailable")) {
                        status = "offline";
                        errorClass = "error";
                    }
                    item.add(new Label("status", status));
                } catch (JSONException e) {
                    LOGGER.warn(e, e);
                }
                item.add(new UpdatingAttributeAppender("class", new Model<String>(errorClass), " "));

            }
        };
        this.add(new AjaxSelfUpdatingTimerBehavior(Duration.seconds(5)));

        add(propView2);
    }

}