pt.webdetails.cda.cache.monitor.ExtraCacheInfo.java Source code

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Here is the source code for pt.webdetails.cda.cache.monitor.ExtraCacheInfo.java

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/*!
* Copyright 2002 - 2013 Webdetails, a Pentaho company.  All rights reserved.
* 
* This software was developed by Webdetails and is provided under the terms
* of the Mozilla Public License, Version 2.0, or any later version. You may not use
* this file except in compliance with the license. If you need a copy of the license,
* please go to  http://mozilla.org/MPL/2.0/. The Initial Developer is Webdetails.
*
* Software distributed under the Mozilla Public License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or  implied. Please refer to
* the license for the specific language governing your rights and limitations.
*/

package pt.webdetails.cda.cache.monitor;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

import javax.swing.table.TableModel;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.json.JSONObject;

import pt.webdetails.cda.exporter.JsonExporter;

/**
 * Info about cached item that shouldn't be factored in key comparison
 */
public class ExtraCacheInfo implements Serializable {//TODO: serialization

    private static final long serialVersionUID = 1L;
    private static final int TABLE_SNAPSHOT_ROWS = 10;

    static Log logger = LogFactory.getLog(ExtraCacheInfo.class);

    private String cdaSettingsId;
    private String dataAccessId;
    private long queryDurationMs;
    private JSONObject tableSnapshot;
    private int nbrRows;

    private long entryTime;
    private int timeToLive;//TODO: delete?

    public ExtraCacheInfo(String cdaSettingsId, String dataAccessId, long queryDurationMs, TableModel tm) {
        this.cdaSettingsId = cdaSettingsId;
        this.dataAccessId = dataAccessId;
        this.queryDurationMs = queryDurationMs;
        this.nbrRows = tm.getRowCount();
        JsonExporter exporter = new JsonExporter(null);

        try {
            this.tableSnapshot = exporter.getTableAsJson(tm, TABLE_SNAPSHOT_ROWS);
        } catch (Exception e) {
            logger.error("Error exporting table snapshot as json.", e);
        }
    }

    public String getCdaSettingsId() {
        return cdaSettingsId;
    }

    public void setCdaSettingsId(String cdaSettingsId) {
        this.cdaSettingsId = cdaSettingsId;
    }

    public String getDataAccessId() {
        return dataAccessId;
    }

    public void setDataAccessId(String dataAccessId) {
        this.dataAccessId = dataAccessId;
    }

    public long getQueryDurationMs() {
        return queryDurationMs;
    }

    public void setQueryDurationMs(long queryDurationMs) {
        this.queryDurationMs = queryDurationMs;
    }

    public JSONObject getTableSnapshot() {
        return tableSnapshot;
    }

    public void setTableSnapshot(JSONObject tableSnapshot) {
        this.tableSnapshot = tableSnapshot;
    }

    public int getNbrRows() {
        return nbrRows;
    }

    public void setNbrRows(int nbrRows) {
        this.nbrRows = nbrRows;
    }

    public long getEntryTime() {
        return entryTime;
    }

    public void setEntryTime(long entryTime) {
        this.entryTime = entryTime;
    }

    public int getTimeToLive() {
        return timeToLive;
    }

    public void setTimeToLive(int timeToLive) {
        this.timeToLive = timeToLive;
    }

    private void writeObject(ObjectOutputStream out) throws IOException {
        out.writeObject(cdaSettingsId);
        out.writeObject(dataAccessId);
        out.writeLong(queryDurationMs);
        out.writeInt(nbrRows);
        out.writeLong(entryTime);
        out.writeInt(timeToLive);
        out.writeObject(tableSnapshot != null ? tableSnapshot.toString() : null);
    }

    private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
        cdaSettingsId = (String) in.readObject();
        dataAccessId = (String) in.readObject();
        queryDurationMs = in.readLong();
        nbrRows = in.readInt();
        entryTime = in.readLong();
        timeToLive = in.readInt();

        try {
            tableSnapshot = new JSONObject((String) in.readObject());
        } catch (Exception e) {
            tableSnapshot = null;
        }
    }

    @Override
    public String toString() {
        return ExtraCacheInfo.class.getName() + " [cdaSettingsId=" + cdaSettingsId + ", dataAccessId="
                + dataAccessId + ", entryTime=" + entryTime + ", timeToLive=" + timeToLive + ", queryDurationMs="
                + queryDurationMs + ", nbrRows=" + nbrRows + "]";
    }

}