/*
* MirrorList.java - Mirrors list
* :tabSize=4:indentSize=4:noTabs=false:
* :folding=explicit:collapseFolds=1:
*
* Copyright (C) 2002 Kris Kopicki
*
* 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 2
* of the License, or 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
package org.gjt.sp.jedit.pluginmgr;
//{{{ Imports
import java.io.*;
import java.net.*;
import java.util.*;
import org.xml.sax.XMLReader;
import org.xml.sax.InputSource;
import org.xml.sax.helpers.XMLReaderFactory;
import org.gjt.sp.jedit.*;
import org.gjt.sp.util.IOUtilities;
import org.gjt.sp.util.ProgressObserver;
import org.gjt.sp.util.Log;
//}}}
/**
* @version $Id: MirrorList.java 22357 2012-10-13 04:58:01Z ezust $
*/
public class MirrorList
{
//{{{ MirrorList constructor
public MirrorList(boolean download, ProgressObserver observer) throws Exception
{
mirrors = new ArrayList<Mirror>();
Mirror none = new Mirror();
none.id = Mirror.NONE;
none.description = none.location = none.country = none.continent = "";
mirrors.add(none);
String path = jEdit.getProperty("plugin-manager.mirror-url");
MirrorListHandler handler = new MirrorListHandler(this,path);
if (download)
{
Log.log(Log.NOTICE, this, "Loading mirror list from internet");
downloadXml(path);
}
else
{
Log.log(Log.NOTICE, this, "Loading mirror list from cache");
readXml();
}
if (xml == null)
return;
observer.setValue(1L);
Reader in = new BufferedReader(new StringReader(xml));
InputSource isrc = new InputSource(in);
isrc.setSystemId("jedit.jar");
XMLReader parser = XMLReaderFactory.createXMLReader();
parser.setContentHandler(handler);
parser.setDTDHandler(handler);
parser.setEntityResolver(handler);
parser.setErrorHandler(handler);
parser.parse(isrc);
observer.setValue(2L);
} //}}}
//{{{ getXml() method
public String getXml()
{
return xml;
} //}}}
//{{{ getMirrors() method
public List<Mirror> getMirrors()
{
return mirrors;
} //}}}
//{{{ Private members
/** The xml mirror list. */
private String xml;
private final List<Mirror> mirrors;
//{{{ readXml() method
/**
* Read and store the mirror list xml.
* @throws IOException exception if it was not possible to read the
* xml or if the url was invalid
*/
private void readXml() throws IOException
{
String settingsDirectory = jEdit.getSettingsDirectory();
if(settingsDirectory == null)
return;
File mirrorList = new File(MiscUtilities.constructPath(
settingsDirectory,"mirrorList.xml"));
if(!mirrorList.exists())
return;
InputStream inputStream = null;
try
{
inputStream = new BufferedInputStream(new FileInputStream(mirrorList));
ByteArrayOutputStream out = new ByteArrayOutputStream();
IOUtilities.copyStream(null,inputStream,out, false);
xml = out.toString();
}
finally
{
IOUtilities.closeQuietly((Closeable)inputStream);
}
} //}}}
//{{{ downloadXml() method
/**
* Read and store the mirror list xml.
*
* @param path the url
* @throws IOException exception if it was not possible to read the
* xml or if the url was invalid
*/
private void downloadXml(String path) throws IOException
{
InputStream inputStream = null;
try
{
inputStream = new URL(path).openStream();
ByteArrayOutputStream out = new ByteArrayOutputStream();
IOUtilities.copyStream(null,inputStream,out, false);
xml = out.toString();
}
finally
{
IOUtilities.closeQuietly((Closeable)inputStream);
}
} //}}}
//{{{ add() method
void add(Mirror mirror)
{
mirrors.add(mirror);
} //}}}
//{{{ finished() method
void finished()
{
Collections.sort(mirrors,new MirrorCompare());
} //}}}
//}}}
//{{{ Inner classes
//{{{ Mirror class
public static class Mirror
{
public static final String NONE = "NONE";
public String id;
public String description;
public String location;
public String country;
public String continent;
} //}}}
//{{{ MirrorCompare class
private static class MirrorCompare implements Comparator<Mirror>
{
public int compare(Mirror m1,Mirror m2)
{
int result;
if ((result = m1.continent.compareToIgnoreCase(m2.continent)) == 0)
if ((result = m1.country.compareToIgnoreCase(m2.country)) == 0)
if ((result = m1.location.compareToIgnoreCase(m2.location)) == 0)
return m1.description.compareToIgnoreCase(m2.description);
return result;
}
public boolean equals(Object obj)
{
return obj instanceof MirrorCompare;
}
} //}}}
//}}}
}