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The INGENIAS Meta-Editor core. It is a set of facilities to generate an editor from a detailed xml description
/**
* Copyright (C) 2010 Jorge J. Gomez-Sanz
*
* This file is part of the INGENME tool. INGENME is an open source meta-editor
* which produces customized editors for user-defined modeling languages
*
* 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 version 3 of the License
*
* 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 modificationTime=new Hashtable();
private boolean alreadyWarned=false;
/**
* Creates a new JarClassLoader for the specified url.
*
*@param url the url of the jar file
*/
public ModuleLoader(URL url) {
super(new URL[] {url});
this.url = url;
}
/**
* Loads tools and code generators which are newer than existing ones
*
*@exception IOException The jas file could not be loaded
*/
public void getToolsAndCG(Set tools, Set cg) throws Exception {
URL u = new URL("jar", "", url + "!/");
JarURLConnection uc = (JarURLConnection) u.openConnection();
Enumeration enumeration = uc.getJarFile().entries();
boolean newclass = false;
while (enumeration.hasMoreElements()) {
newclass = true;
ZipEntry ze = (ZipEntry) enumeration.nextElement();
Class c = null;
String cname = "";
try {
if (ze.getName().indexOf(".class") > -1) {
cname = ze.getName().substring(0, ze.getName().length() - 6).
replace('/', '.');
c = this.loadClass(cname);
if (ingenias.editor.extension.BasicTool.class.isAssignableFrom(c) &&
!ingenias.editor.extension.BasicCodeGenerator.class.
isAssignableFrom(c)) {
tools.add(c);
}
else
if (ingenias.editor.extension.BasicTool.class.isAssignableFrom(c) &&
ingenias.editor.extension.BasicCodeGenerator.class.
isAssignableFrom(c)) {
cg.add(c);
}
}
}
catch (ClassNotFoundException cnf) {
cnf.printStackTrace();
}
}
}
public static void copyFile(File sourceFile, File destFile) throws IOException {
if(!destFile.exists()) {
destFile.createNewFile();
}
FileChannel source = null;
FileChannel destination = null;
try {
source = new FileInputStream(sourceFile).getChannel();
destination = new FileOutputStream(destFile).getChannel();
destination.transferFrom(source, 0, source.size());
}
finally {
if(source != null) {
source.close();
}
if(destination != null) {
destination.close();
}
}
}
public void updateStatus(String folder,Set currenttools, Set currentcg) {
try {
File f = new File(folder);
if (f.isDirectory()) {
File[] fs = f.listFiles();
for (int k = 0; k < fs.length; k++) {
if (fs[k].getName().toLowerCase().endsWith(".jar") &&
(!reviewedFiles.contains(fs[k].getName())||
modificationTime.get(fs[k].getName()).longValue()!=fs[k].lastModified())) {
File nname = File.createTempFile("modulecopy", "");
nname.deleteOnExit(); // To remove the file on JVM exit
copyFile(fs[k],nname);
reviewedFiles.add(fs[k].getName());
modificationTime.put(fs[k].getName(),fs[k].lastModified()); // registers modification time
ModuleLoader ml = new ModuleLoader(new URL("file:" + nname.getAbsolutePath()));
ml.getToolsAndCG(currenttools, currentcg);
}
}
}
else {
if (!alreadyWarned)
ingenias.editor.Log.getInstance().logWARNING(
"\""+folder+"\" has to be a folder. If it does not exist, please create it. If you use modules, these have to be put inside a folder called ext. Otherwise, you will not be able to use any embedded module");
alreadyWarned=true;
}
}
catch (Exception e) {
e.printStackTrace();
}
}
public static void cleanExtensionFolder() {
try {
File f = new File("ext");
if (f.isDirectory()) {
File[] fs = f.listFiles();
Hashtable set = new Hashtable();
for (int k = 0; k < fs.length; k++) {
String rname = fs[k].getName();
rname = rname.replace('_', ' ').trim();
Vector row = null;
if (set.containsKey(rname)) {
row = (Vector) set.get(rname);
}
else {
row = new Vector();
set.put(rname, row);
}
row.add(fs[k]);
}
Enumeration keys = set.keys();
while (keys.hasMoreElements()) {
String name = keys.nextElement().toString();
Vector row = (Vector) set.get(name);
File selected = null;
int countedscores = 0;
for (int k = 0; k < row.size(); k++) {
File current = (File) row.elementAt(k);
int index = current.getName().lastIndexOf("_");
if (index > countedscores) {
selected = current;
countedscores = index;
}
}
if (selected != null) {
for (int k = 0; k < row.size(); k++) {
File current = (File) row.elementAt(k);
if (!current.equals(selected)) {
current.delete();
}
}
selected.renameTo(new File("ext/" + name));
}
}
}
}
catch (Exception e) {
e.printStackTrace();
}
}
/**
* Description of the Method
*
*@param args Description of Parameter
*@exception Exception Description of Exception
*/
public static void main(String args[]) throws Exception {
}
}