private synchronized void scanComponents() {
List<Component> list = new ArrayList<Component>();
backupedComponents = new ArrayList<Component>();
File dir = new File(this.directory);
if (dir.isDirectory()) {
File[] files =
dir.listFiles(
new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
return name.endsWith(".jar") || name.endsWith(".jar.bak");
}
});
for (File f : files) {
Map<String, String> manifest = FileUtils.parseManifestFile(f);
if (manifest == null || manifest.isEmpty() || !manifest.containsKey(IRONRHINO_COMPONENT_ID))
continue;
Component component = new Component(manifest);
component.setRealPath(f.getAbsolutePath());
(f.getName().endsWith(".jar") ? list : backupedComponents).add(component);
}
Collections.sort(
list,
new Comparator<Component>() {
@Override
public int compare(Component o1, Component o2) {
return o1.getId().compareTo(o2.getId());
}
});
this.installedComponents = new ArrayList<Component>();
for (Component c : list) addInstalledComponent(c);
}
}
public void install(File f) {
Map<String, String> manifest = FileUtils.parseManifestFile(f);
if (manifest == null || !manifest.containsKey(IRONRHINO_COMPONENT_ID)) {
throw new ErrorMessage("invalid component");
}
Component newcomp = new Component(manifest);
Component oldcomp = null;
for (Component c : getInstalledComponents())
if (c.getId().equals(newcomp.getId())) {
oldcomp = c;
break;
}
checkDependence(newcomp.getDependence());
if (oldcomp != null) {
if (oldcomp.getVersion().compareTo(newcomp.getVersion()) >= 0)
throw new ErrorMessage("component has installed");
try {
new File(oldcomp.getRealPath() + ".bak").delete();
org.apache.commons.io.FileUtils.moveFile(
new File(oldcomp.getRealPath()), new File(oldcomp.getRealPath() + ".bak"));
} catch (IOException e) {
throw new ErrorMessage(e.getMessage());
}
oldcomp.setRealPath(oldcomp.getRealPath() + ".bak");
getBackupedComponents().add(oldcomp);
}
String newfilename =
new StringBuilder(directory)
.append(File.separator)
.append(newcomp.getId())
.append("-")
.append(newcomp.getVersion())
.append(".jar")
.toString();
try {
org.apache.commons.io.FileUtils.copyFile(f, new File(newfilename));
} catch (IOException e) {
throw new ErrorMessage(e.getMessage());
}
newcomp.setRealPath(newfilename);
addInstalledComponent(newcomp);
}