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World Wind is a collection of components that interactively display 3D geographic information within Java applications or applets.
/*
* Copyright (C) 2012 United States Government as represented by the Administrator of the
* National Aeronautics and Space Administration.
* All Rights Reserved.
*/
package gov.nasa.worldwind.layers.placename;
import gov.nasa.worldwind.geom.*;
import gov.nasa.worldwind.render.DrawContext;
import gov.nasa.worldwind.util.*;
import java.awt.*;
/**
* @author Paul Collins
* @version $Id: PlaceNameService.java 1171 2013-02-11 21:45:02Z dcollins $
*/
public class PlaceNameService
{
// Data retrieval and caching attributes.
private final String service;
private final String dataset;
private final String fileCachePath;
private static final String FORMAT_SUFFIX = ".xml.gz";
// Geospatial attributes.
public static final Sector TILING_SECTOR = Sector.FULL_SPHERE;
private final LatLon tileDelta;
// Display attributes.
private final java.awt.Font font;
private boolean enabled;
private java.awt.Color color;
private java.awt.Color backgroundColor;
private double minDisplayDistance;
private double maxDisplayDistance;
private int numColumns;
private static final int MAX_ABSENT_TILE_TRIES = 2;
private static final int MIN_ABSENT_TILE_CHECK_INTERVAL = 10000;
private final AbsentResourceList absentTiles = new AbsentResourceList(MAX_ABSENT_TILE_TRIES,
MIN_ABSENT_TILE_CHECK_INTERVAL);
private boolean addVersionTag = false;
private Sector maskingSector = null;
/**
* PlaceNameService Constructor
*
* @param service server hostong placename data
* @param dataset name of the dataset
* @param fileCachePath location of cache
* @param sector sets the masking sector for this service.
* @param tileDelta tile size
* @param font font for rendering name
* @param versionTag dictates if the wfs version tag is added to requests
*
* @throws IllegalArgumentException if any parameter is null
*/
public PlaceNameService(String service, String dataset, String fileCachePath, Sector sector, LatLon tileDelta,
java.awt.Font font, boolean versionTag)
{
// Data retrieval and caching attributes.
this.service = service;
this.dataset = dataset;
this.fileCachePath = fileCachePath;
// Geospatial attributes.
this.maskingSector = sector;
this.tileDelta = tileDelta;
// Display attributes.
this.font = font;
this.enabled = true;
this.color = java.awt.Color.white;
this.minDisplayDistance = Double.MIN_VALUE;
this.maxDisplayDistance = Double.MAX_VALUE;
this.addVersionTag = versionTag;
String message = this.validate();
if (message != null)
{
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
this.numColumns = this.numColumnsInLevel();
}
/**
* @param row row
* @param column column
*
* @return path of the tile in the cache
*
* @throws IllegalArgumentException if either row or column is less than zero
*/
public String createFileCachePathFromTile(int row, int column)
{
if (row < 0 || column < 0)
{
String message = Logging.getMessage("PlaceNameService.RowOrColumnOutOfRange", row, column);
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
StringBuilder sb = new StringBuilder(this.fileCachePath);
sb.append(java.io.File.separator).append(this.dataset);
sb.append(java.io.File.separator).append(row);
sb.append(java.io.File.separator).append(row).append('_').append(column);
sb.append(FORMAT_SUFFIX);
String path = sb.toString();
return path.replaceAll("[:*?<>|]", "");
}
private int numColumnsInLevel()
{
int firstCol = Tile.computeColumn(this.tileDelta.getLongitude(), TILING_SECTOR.getMinLongitude(), Angle.NEG180);
int lastCol = Tile.computeColumn(this.tileDelta.getLongitude(),
TILING_SECTOR.getMaxLongitude().subtract(this.tileDelta.getLongitude()), Angle.NEG180);
return lastCol - firstCol + 1;
}
public long getTileNumber(int row, int column)
{
return row * this.numColumns + column;
}
/**
* @param sector request bounding box
*
* @return wfs request url
*
* @throws java.net.MalformedURLException thrown if error creating the url
* @throws IllegalArgumentException if {@link gov.nasa.worldwind.geom.Sector} is null
*/
public java.net.URL createServiceURLFromSector(Sector sector) throws java.net.MalformedURLException
{
if (sector == null)
{
String msg = Logging.getMessage("nullValue.SectorIsNull");
Logging.logger().severe(msg);
throw new IllegalArgumentException(msg);
}
StringBuilder sb = new StringBuilder(this.service);
if (sb.charAt(sb.length() - 1) != '?')
sb.append('?');
if (addVersionTag)
sb.append("version=1.0.0&TypeName=").append(
dataset); //version=1.0.0 is needed when querying a new wfs server
else
sb.append("TypeName=").append(dataset);
sb.append("&Request=GetFeature");
sb.append("&Service=WFS");
sb.append("&OUTPUTFORMAT=GML2-GZIP");
sb.append("&BBOX=");
sb.append(sector.getMinLongitude().getDegrees()).append(',');
sb.append(sector.getMinLatitude().getDegrees()).append(',');
sb.append(sector.getMaxLongitude().getDegrees()).append(',');
sb.append(sector.getMaxLatitude().getDegrees());
return new java.net.URL(sb.toString());
}
public synchronized final PlaceNameService deepCopy()
{
PlaceNameService copy = new PlaceNameService(this.service, this.dataset, this.fileCachePath, maskingSector,
this.tileDelta, this.font, this.addVersionTag);
copy.enabled = this.enabled;
copy.color = this.color;
copy.minDisplayDistance = this.minDisplayDistance;
copy.maxDisplayDistance = this.maxDisplayDistance;
return copy;
}
@Override
public boolean equals(Object o)
{
if (this == o)
return true;
if (o == null || this.getClass() != o.getClass())
return false;
final PlaceNameService other = (PlaceNameService) o;
if (this.service != null ? !this.service.equals(other.service) : other.service != null)
return false;
if (this.dataset != null ? !this.dataset.equals(other.dataset) : other.dataset != null)
return false;
if (this.fileCachePath != null ? !this.fileCachePath.equals(other.fileCachePath) : other.fileCachePath != null)
return false;
if (this.maskingSector != null ? !this.maskingSector.equals(other.maskingSector) : other.maskingSector != null)
return false;
if (this.tileDelta != null ? !this.tileDelta.equals(other.tileDelta) : other.tileDelta != null)
return false;
if (this.font != null ? !this.font.equals(other.font) : other.font != null)
return false;
if (this.color != null ? !this.color.equals(other.color) : other.color != null)
return false;
if (this.backgroundColor != null ? !this.backgroundColor.equals(other.backgroundColor)
: other.backgroundColor != null)
return false;
if (this.minDisplayDistance != other.minDisplayDistance)
return false;
//noinspection RedundantIfStatement
if (this.maxDisplayDistance != other.maxDisplayDistance)
return false;
return true;
}
public synchronized final java.awt.Color getColor()
{
return this.color;
}
public synchronized final Color getBackgroundColor()
{
if (this.backgroundColor == null)
this.backgroundColor = suggestBackgroundColor(this.color);
return this.backgroundColor;
}
private Color suggestBackgroundColor(Color foreground)
{
float[] compArray = new float[4];
Color.RGBtoHSB(foreground.getRed(), foreground.getGreen(), foreground.getBlue(), compArray);
int colorValue = compArray[2] < 0.5f ? 255 : 0;
int alphaValue = foreground.getAlpha();
return new Color(colorValue, colorValue, colorValue, alphaValue);
}
public final String getDataset()
{
return this.dataset;
}
/**
* @param dc DrawContext
*
* @return extent of current drawcontext
*
* @throws IllegalArgumentException if {@link gov.nasa.worldwind.render.DrawContext} is null
*/
public final Extent getExtent(DrawContext dc)
{
if (dc == null)
{
String message = Logging.getMessage("nullValue.DrawContextIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
return Sector.computeBoundingBox(dc.getGlobe(), dc.getVerticalExaggeration(), this.maskingSector);
}
public final String getFileCachePath()
{
return this.fileCachePath;
}
public final java.awt.Font getFont()
{
return this.font;
}
public synchronized final double getMaxDisplayDistance()
{
return this.maxDisplayDistance;
}
public synchronized final double getMinDisplayDistance()
{
return this.minDisplayDistance;
}
public final LatLon getTileDelta()
{
return tileDelta;
}
public final Sector getMaskingSector()
{
return this.maskingSector;
}
public final String getService()
{
return this.service;
}
public boolean isAddVersionTag()
{
return addVersionTag;
}
public void setAddVersionTag(boolean addVersionTag)
{
this.addVersionTag = addVersionTag;
}
@Override
public int hashCode()
{
int result;
result = (service != null ? service.hashCode() : 0);
result = 29 * result + (this.dataset != null ? this.dataset.hashCode() : 0);
result = 29 * result + (this.fileCachePath != null ? this.fileCachePath.hashCode() : 0);
result = 29 * result + (this.maskingSector != null ? this.maskingSector.hashCode() : 0);
result = 29 * result + (this.tileDelta != null ? this.tileDelta.hashCode() : 0);
result = 29 * result + (this.font != null ? this.font.hashCode() : 0);
result = 29 * result + (this.color != null ? this.color.hashCode() : 0);
result = 29 * result + ((Double) minDisplayDistance).hashCode();
result = 29 * result + ((Double) maxDisplayDistance).hashCode();
return result;
}
public synchronized final boolean isEnabled()
{
return this.enabled;
}
/**
* @param color color of label
*
* @throws IllegalArgumentException if {@link java.awt.Color} is null
*/
public synchronized final void setColor(java.awt.Color color)
{
if (color == null)
{
String message = Logging.getMessage("nullValue.ColorIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
this.color = color;
}
public synchronized final void setBackgroundColor(java.awt.Color backgroundColor)
{
this.backgroundColor = backgroundColor;
}
public synchronized final void setEnabled(boolean enabled)
{
this.enabled = enabled;
}
/**
* @param maxDisplayDistance maximum distance to display labels for this service
*
* @throws IllegalArgumentException if maxDisplayDistance is less than the current minimum display
* distance
*/
public synchronized final void setMaxDisplayDistance(double maxDisplayDistance)
{
if (maxDisplayDistance < this.minDisplayDistance)
{
String message = Logging.getMessage("PlaceNameService.MaxDisplayDistanceLessThanMinDisplayDistance",
maxDisplayDistance, this.minDisplayDistance);
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
this.maxDisplayDistance = maxDisplayDistance;
}
/**
* @param minDisplayDistance minimum distance to display labels for this service
*
* @throws IllegalArgumentException if minDisplayDistance is less than the current maximum display
* distance
*/
public synchronized final void setMinDisplayDistance(double minDisplayDistance)
{
if (minDisplayDistance > this.maxDisplayDistance)
{
String message = Logging.getMessage("PlaceNameService.MinDisplayDistanceGrtrThanMaxDisplayDistance",
minDisplayDistance, this.maxDisplayDistance);
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
this.minDisplayDistance = minDisplayDistance;
}
public synchronized final void markResourceAbsent(long tileNumber)
{
this.absentTiles.markResourceAbsent(tileNumber);
}
public synchronized final boolean isResourceAbsent(long resourceNumber)
{
return this.absentTiles.isResourceAbsent(resourceNumber);
}
public synchronized final void unmarkResourceAbsent(long tileNumber)
{
this.absentTiles.unmarkResourceAbsent(tileNumber);
}
/**
* Determines if this {@link gov.nasa.worldwind.layers.placename.PlaceNameService} constructor arguments are valid.
*
* @return null if valid, otherwise a string message containing a description of why it is invalid.
*/
public final String validate()
{
String msg = "";
if (this.service == null)
{
msg += Logging.getMessage("nullValue.ServiceIsNull") + ", ";
}
if (this.dataset == null)
{
msg += Logging.getMessage("nullValue.DataSetIsNull") + ", ";
}
if (this.fileCachePath == null)
{
msg += Logging.getMessage("nullValue.FileStorePathIsNull") + ", ";
}
if (this.maskingSector == null)
{
msg += Logging.getMessage("nullValue.SectorIsNull") + ", ";
}
if (this.tileDelta == null)
{
msg += Logging.getMessage("nullValue.TileDeltaIsNull") + ", ";
}
if (this.font == null)
{
msg += Logging.getMessage("nullValue.FontIsNull") + ", ";
}
if (msg.length() == 0)
{
return null;
}
return msg;
}
}