/**
* Loads custom data like listener and lib references if exist and fills the installdata.
*
* @param installdata installdata into which the custom action data should be stored
* @throws Exception
*/
private void loadCustomData(AutomatedInstallData installdata) throws Exception {
// Usefull variables
InputStream in;
ObjectInputStream objIn;
int i;
// Load listeners if exist.
String[] streamNames = AutomatedInstallData.CUSTOM_ACTION_TYPES;
List[] out = new List[streamNames.length];
for (i = 0; i < streamNames.length; ++i) {
out[i] = new ArrayList();
}
in = InstallerBase.class.getResourceAsStream("/customData");
if (in != null) {
objIn = new ObjectInputStream(in);
Object listeners = objIn.readObject();
objIn.close();
Iterator keys = ((List) listeners).iterator();
while (keys != null && keys.hasNext()) {
CustomData ca = (CustomData) keys.next();
if (ca.osConstraints != null
&& !OsConstraint.oneMatchesCurrentSystem(
ca.osConstraints)) { // OS constraint defined, but not matched; therefore ignore
// it.
continue;
}
switch (ca.type) {
case CustomData.INSTALLER_LISTENER:
Class clazz = Class.forName(ca.listenerName);
if (clazz == null) {
throw new InstallerException("Custom action " + ca.listenerName + " not bound!");
}
out[ca.type].add(clazz.newInstance());
break;
case CustomData.UNINSTALLER_LISTENER:
case CustomData.UNINSTALLER_JAR:
out[ca.type].add(ca);
break;
case CustomData.UNINSTALLER_LIB:
out[ca.type].add(ca.contents);
break;
}
}
// Add the current custem action data to the installdata hash map.
for (i = 0; i < streamNames.length; ++i) {
installdata.customData.put(streamNames[i], out[i]);
}
}
// uninstallerLib list if exist
}
/**
* Returns a stream to a pack, location depending on if it's web based.
*
* @param uninstall true if pack must be uninstalled
* @return The stream or null if it could not be found.
* @throws Exception Description of the Exception
*/
private InputStream getPackAsStream(String packid, boolean uninstall) throws Exception {
InputStream in = null;
String webDirURL = idata.info.getWebDirURL();
packid = "-" + packid;
if (webDirURL == null) // local
{
in = Unpacker.class.getResourceAsStream("/packs/pack" + packid);
} else
// web based
{
// TODO: Look first in same directory as primary jar
// This may include prompting for changing of media
// TODO: download and cache them all before starting copy process
// See compiler.Packager#getJarOutputStream for the counterpart
String baseName = idata.info.getInstallerBase();
String packURL = webDirURL + "/" + baseName + ".pack" + packid + ".jar";
String tf =
IoHelper.translatePath(idata.info.getUninstallerPath() + Unpacker.tempSubPath, vs);
String tempfile;
try {
tempfile = WebRepositoryAccessor.getCachedUrl(packURL, tf);
udata.addFile(tempfile, uninstall);
} catch (Exception e) {
if ("Cancelled".equals(e.getMessage())) {
throw new InstallerException("Installation cancelled", e);
} else {
throw new InstallerException("Installation failed", e);
}
}
URL url = new URL("jar:" + tempfile + "!/packs/pack" + packid);
// URL url = new URL("jar:" + packURL + "!/packs/pack" + packid);
// JarURLConnection jarConnection = (JarURLConnection)
// url.openConnection();
// TODO: what happens when using an automated installer?
in = new WebAccessor(null).openInputStream(url);
// TODO: Fails miserably when pack jars are not found, so this is
// temporary
if (in == null) {
throw new InstallerException(
url.toString() + " not available", new FileNotFoundException(url.toString()));
}
}
if (in != null && idata.info.getPackDecoderClassName() != null) {
Class<Object> decoder = (Class<Object>) Class.forName(idata.info.getPackDecoderClassName());
Class[] paramsClasses = new Class[1];
paramsClasses[0] = Class.forName("java.io.InputStream");
Constructor<Object> constructor = decoder.getDeclaredConstructor(paramsClasses);
// Our first used decoder input stream (bzip2) reads byte for byte from
// the source. Therefore we put a buffering stream between it and the
// source.
InputStream buffer = new BufferedInputStream(in);
Object[] params = {buffer};
Object instance = null;
instance = constructor.newInstance(params);
if (!InputStream.class.isInstance(instance)) {
throw new InstallerException(
"'"
+ idata.info.getPackDecoderClassName()
+ "' must be derived from "
+ InputStream.class.toString());
}
in = (InputStream) instance;
}
return in;
}
