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/**
 * MCS Media Computer Software
 * Copyright 2015 by Wilfried Klaas
 * Project: JMeasurement
 * File: MeasurementReporter.java
 * EMail: [email protected]
 * Created: 24.11.2015 wklaa_000
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see 
 */
package de.mcs.jmeasurement.renderer;

import java.io.IOException;
import java.io.Writer;

import de.mcs.jmeasurement.DefaultMeasurePoint;
import de.mcs.jmeasurement.JMConfig;
import de.mcs.jmeasurement.MeasurePoint;
import de.mcs.jmeasurement.MeasurePoint.PRIORITY;
import de.mcs.jmeasurement.SnapShot;
import de.mcs.jmeasurement.exception.RendererMustNotBeNullException;

/**
 * @author wklaa_000
 *
 */
public class MeasurementReporter {

  private MeasurePoint[] points;
  private SnapShot[] snapshots;
  private PRIORITY priority;
  private JMConfig config;

  public MeasurementReporter(JMConfig config, MeasurePoint[] points, SnapShot[] snapshots) {
    this.points = points;
    this.snapshots = snapshots;
    this.config = config;
  }

  public void setPriority(PRIORITY priority) {
    this.priority = priority;
  }

  public PRIORITY getPriority() {
    return priority;
  }

  public void getReport(final String pointname, final MeasureDataRenderer renderer, final Writer output)
      throws RendererMustNotBeNullException, IOException {
    if (renderer == null) {
      throw new RendererMustNotBeNullException("renderer must not be null");
    }

    if (renderer instanceof MeasureDataRendererPage) {
      output.write(((MeasureDataRendererPage) renderer).getReportHeader());
      output.write(((MeasureDataRendererPage) renderer).beginPage());
    }
    if (renderer instanceof MeasureDataRendererColumnHeader) {
      output.write(((MeasureDataRendererColumnHeader) renderer)
          .getColumnHeaderAsString(new DefaultMeasurePoint("empty", config)));
    }
    for (int i = 0; i < points.length; i++) {
      if (points[i].getPriority().compareTo(getPriority()) >= 0) {
        output.write(renderer.getDataAsString(points[i], ""));
      }
    }
    if (renderer instanceof MeasureDataRendererPage) {
      output.write(((MeasureDataRendererPage) renderer).endPage());
    }
    if ((snapshots != null) && (snapshots.length > 0) && (renderer instanceof MeasureDataRendererSnapshot)) {
      for (SnapShot snapshot : snapshots) {
        MeasurePoint[] points = snapshot.getMeasurePoints(pointname);

        MeasurementReporter snapshotReporter = new MeasurementReporter(config, points, null);
        snapshotReporter.setPriority(getPriority());

        snapshotReporter.getSnapshotReport(snapshot, renderer, output);
      }
    }
    if (renderer instanceof MeasureDataRendererPage) {
      output.write(((MeasureDataRendererPage) renderer).getReportFooter());
    }
  }

  public void getSnapshotReport(final SnapShot snapshot, final MeasureDataRenderer renderer, final Writer output)
      throws RendererMustNotBeNullException, IOException {
    if (renderer == null) {
      throw new RendererMustNotBeNullException("renderer must not be null");
    }

    if (renderer instanceof MeasureDataRendererSnapshot) {
      output.write(((MeasureDataRendererSnapshot) renderer).startSnapShot(snapshot));
    }
    if (renderer instanceof MeasureDataRendererPage) {
      output.write(((MeasureDataRendererPage) renderer).beginPage());
    }

    if (renderer instanceof MeasureDataRendererColumnHeader) {
      output.write(
          ((MeasureDataRendererColumnHeader) renderer).getColumnHeaderAsString(new DefaultMeasurePoint("empty", null)));
    }

    for (int i = 0; i < points.length; i++) {
      if (points[i].getPriority().compareTo(priority) >= 0) {
        output.write(renderer.getDataAsString(points[i], "s" + Integer.toString(snapshot.getId())));
      }
    }

    if (renderer instanceof MeasureDataRendererPage) {
      output.write(((MeasureDataRendererPage) renderer).endPage());
    }
    if (renderer instanceof MeasureDataRendererSnapshot) {
      output.write(((MeasureDataRendererSnapshot) renderer).endSnapShot(snapshot));
    }

  }
}