/*
* Copyright 1998-2009 University Corporation for Atmospheric Research/Unidata
*
* Portions of this software were developed by the Unidata Program at the
* University Corporation for Atmospheric Research.
*
* Access and use of this software shall impose the following obligations
* and understandings on the user. The user is granted the right, without
* any fee or cost, to use, copy, modify, alter, enhance and distribute
* this software, and any derivative works thereof, and its supporting
* documentation for any purpose whatsoever, provided that this entire
* notice appears in all copies of the software, derivative works and
* supporting documentation. Further, UCAR requests that the user credit
* UCAR/Unidata in any publications that result from the use of this
* software or in any product that includes this software. The names UCAR
* and/or Unidata, however, may not be used in any advertising or publicity
* to endorse or promote any products or commercial entity unless specific
* written permission is obtained from UCAR/Unidata. The user also
* understands that UCAR/Unidata is not obligated to provide the user with
* any support, consulting, training or assistance of any kind with regard
* to the use, operation and performance of this software nor to provide
* the user with any updates, revisions, new versions or "bug fixes."
*
* THIS SOFTWARE IS PROVIDED BY UCAR/UNIDATA "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL UCAR/UNIDATA BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE ACCESS, USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/**
* Created by IntelliJ IDEA.
* User: Robb
* Date: Sep 4, 2009
* Time: 8:37:47 AM
* To change this template use File | Settings | File Templates.
*/
package ucar.grib;
import java.io.File;
import java.io.IOException;
public class GribIndexName {
/**
* Current Index suffix, suffix to use by default
*/
public static final String currentSuffix = ".gbx8";
/**
* Old Index suffix
*/
public static final String oldSuffix = ".gbx";
/**
* Update to current suffix
*/
public static boolean updateToCurrent = false;
/**
* Create current index
*/
public static boolean createCurrent = true;
/**
* Cache Directory, directory to create index if it can't be create in the same directory as
* the grib file directory
*/
public static String cache = null;
/**
* Get Index Name, return currentSuffix
* if no index exist, create name with currentSuffix
* @param gribName used to make Index name
* @return gribIndexName String
*/
public static String getCurrentSuffix(String gribName ) {
return getIndex( gribName, false );
}
/**
* Get Index Name, return currentSuffix first, then oldSuffix if it exists.
* if no index exist, create name with currentSuffix
* @param gribName used to make Index name
* @return gribIndexName String
*/
public static String get(String gribName ) {
return getIndex( gribName, true );
}
public static String getIndex(String gribName, boolean includeOld ) {
File fidx;
if (gribName.endsWith(oldSuffix))
gribName = gribName.replace(oldSuffix, "");
if (gribName.endsWith(currentSuffix)) {
fidx = new File(gribName);
} else {
fidx = new File(gribName + currentSuffix);
}
if (fidx.exists()) {
return fidx.getPath();
} else if( includeOld ) { // try older suffix
fidx = new File(gribName + oldSuffix);
if (fidx.exists())
return fidx.getPath();
}
// create and test write permissions
fidx = new File(gribName + currentSuffix);
// now comes the tricky part to make sure we can open and write to it
try {
if (fidx.createNewFile()) {
fidx.delete();
return fidx.getPath();
}
} catch (IOException e) {
// cant write to it - drop through
}
if (cache != null) {
return cache + gribName + currentSuffix;
}
// punt
return gribName + currentSuffix;
}
public static boolean isUpdateToCurrent() {
return updateToCurrent;
}
public static void setUpdateToCurrent(boolean updateToCurrent) {
GribIndexName.updateToCurrent = updateToCurrent;
}
public static boolean isCreateCurrent() {
return createCurrent;
}
public static void setCreateCurrent(boolean createCurrent) {
GribIndexName.createCurrent = createCurrent;
}
public static String getCache() {
return cache;
}
public static void setCache(String cache) {
GribIndexName.cache = cache;
}
}