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[176216] parsers dynamically loaded when needed

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This commit is contained in:
Javier Montalvo Orus 2007-05-10 10:40:43 +00:00
parent 23d19b52fe
commit 56c2add9e5
1 changed files with 86 additions and 39 deletions
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83
rse/plugins/org.eclipse.rse.subsystems.files.ftp/src/org/eclipse/rse/internal/subsystems/files/ftp/parser/FTPClientConfigFactory.java
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@ -12,6 +12,7 @@ package org.eclipse.rse.internal.subsystems.files.ftp.parser;
import java.util.Hashtable; import java.util.Hashtable;
import java.util.Set; import java.util.Set;
import java.util.TreeSet;
import org.apache.commons.net.ftp.FTPClientConfig; import org.apache.commons.net.ftp.FTPClientConfig;
import org.apache.commons.net.ftp.FTPFileEntryParser; import org.apache.commons.net.ftp.FTPFileEntryParser;
@ -24,10 +25,12 @@ import org.eclipse.rse.internal.services.files.ftp.parser.IFTPClientConfigFactor
public class FTPClientConfigFactory implements IFTPClientConfigFactory { public class FTPClientConfigFactory implements IFTPClientConfigFactory {
private static FTPClientConfigFactory factory = null; private static FTPClientConfigFactory factory = null;
private Set keySet = new TreeSet();
private Hashtable ftpConfig = new Hashtable(); private Hashtable ftpConfig = new Hashtable();
private Hashtable ftpFileEntryParser = new Hashtable(); private Hashtable ftpFileEntryParser = new Hashtable();
private IExtensionPoint ep = Platform.getExtensionRegistry().getExtensionPoint("org.eclipse.rse.subsystems.files.ftp","ftpFileEntryParser"); //$NON-NLS-1$ //$NON-NLS-2$
/** /**
* Constructor of the parser factory * Constructor of the parser factory
@ -45,23 +48,41 @@ private static FTPClientConfigFactory factory = null;
private FTPClientConfigFactory() { private FTPClientConfigFactory() {
FTPClientConfig config = null;
IExtensionPoint ep = Platform.getExtensionRegistry().getExtensionPoint("org.eclipse.rse.subsystems.files.ftp","ftpFileEntryParser"); //$NON-NLS-1$ //$NON-NLS-2$
IConfigurationElement[] ce = ep.getConfigurationElements(); IConfigurationElement[] ce = ep.getConfigurationElements();
for (int i = 0; i < ce.length; i++) { for (int i = 0; i < ce.length; i++) {
config = null; String label = ce[i].getAttribute("name"); //$NON-NLS-1$
keySet.add(label);
}
}
String name = ce[i].getAttribute("name"); //$NON-NLS-1$ /*
* (non-Javadoc)
* @see org.eclipse.rse.internal.services.files.ftp.parser.IFTPClientConfigFactory#getFTPClientConfig(java.lang.String)
*/
public FTPClientConfig getFTPClientConfig(String key)
{
if(!ftpConfig.containsKey(key))
{
IConfigurationElement[] ce = ep.getConfigurationElements();
for (int i = 0; i < ce.length; i++)
{
String label = ce[i].getAttribute("name"); //$NON-NLS-1$
if(label.equals(key))
{
FTPClientConfig config = null;
//populate tables
String clas = ce[i].getAttribute("class"); //$NON-NLS-1$ String clas = ce[i].getAttribute("class"); //$NON-NLS-1$
FTPFileEntryParser entryParser=null; FTPFileEntryParser entryParser=null;
try { try {
entryParser = (FTPFileEntryParser)ce[i].createExecutableExtension("class"); //$NON-NLS-1$ entryParser = (FTPFileEntryParser)ce[i].createExecutableExtension("class"); //$NON-NLS-1$
} catch (CoreException e) { } catch (CoreException e) {
// TODO Auto-generated catch block throw new ParserInitializationException(e.getMessage());
e.printStackTrace();
} }
ftpFileEntryParser.put(clas, entryParser); ftpFileEntryParser.put(clas, entryParser);
@ -81,17 +102,13 @@ private static FTPClientConfigFactory factory = null;
config.setShortMonthNames(shortMonthNames); config.setShortMonthNames(shortMonthNames);
config.setServerTimeZoneId(serverTimeZoneId); config.setServerTimeZoneId(serverTimeZoneId);
ftpConfig.put(name, config); ftpConfig.put(label, config);
} }
} }
}
/*
* (non-Javadoc)
* @see org.eclipse.rse.internal.services.files.ftp.parser.IFTPClientConfigFactory#getFTPClientConfig(java.lang.String)
*/
public FTPClientConfig getFTPClientConfig(String key)
{
return (FTPClientConfig)ftpConfig.get(key); return (FTPClientConfig)ftpConfig.get(key);
} }
@ -101,7 +118,7 @@ private static FTPClientConfigFactory factory = null;
*/ */
public Set getKeySet() public Set getKeySet()
{ {
return ftpConfig.keySet(); return keySet;
} }
/* /*
@ -109,6 +126,37 @@ private static FTPClientConfigFactory factory = null;
* @see org.apache.commons.net.ftp.parser.FTPFileEntryParserFactory#createFileEntryParser(java.lang.String) * @see org.apache.commons.net.ftp.parser.FTPFileEntryParserFactory#createFileEntryParser(java.lang.String)
*/ */
public FTPFileEntryParser createFileEntryParser(String key) throws ParserInitializationException { public FTPFileEntryParser createFileEntryParser(String key) throws ParserInitializationException {
//
// the hashtable "ftpFileEntryParser" will be populated previously by getFTPClientConfig()
// but in case the execution flow gets modified it's worth checking and populating it if required
//
if(!ftpFileEntryParser.containsKey(key))
{
IConfigurationElement[] ce = ep.getConfigurationElements();
for (int i = 0; i < ce.length; i++)
{
String label = ce[i].getAttribute("name"); //$NON-NLS-1$
if(label.equals(key))
{
//populate tables
String clas = ce[i].getAttribute("class"); //$NON-NLS-1$
FTPFileEntryParser entryParser=null;
try {
entryParser = (FTPFileEntryParser)ce[i].createExecutableExtension("class"); //$NON-NLS-1$
} catch (CoreException e) {
throw new ParserInitializationException(e.getMessage());
}
ftpFileEntryParser.put(clas, entryParser);
}
}
}
return (FTPFileEntryParser)ftpFileEntryParser.get(key); return (FTPFileEntryParser)ftpFileEntryParser.get(key);
} }
@ -116,8 +164,7 @@ private static FTPClientConfigFactory factory = null;
* (non-Javadoc) * (non-Javadoc)
* @see org.apache.commons.net.ftp.parser.FTPFileEntryParserFactory#createFileEntryParser(org.apache.commons.net.ftp.FTPClientConfig) * @see org.apache.commons.net.ftp.parser.FTPFileEntryParserFactory#createFileEntryParser(org.apache.commons.net.ftp.FTPClientConfig)
*/ */
public FTPFileEntryParser createFileEntryParser(FTPClientConfig config) public FTPFileEntryParser createFileEntryParser(FTPClientConfig config) throws ParserInitializationException {
throws ParserInitializationException {
String key = config.getServerSystemKey(); String key = config.getServerSystemKey();
return createFileEntryParser(key); return createFileEntryParser(key);