/**
* Return the XMIHeader for the specified File or null if the file does not represent a MetaMatrix
* model file.
*
* @param resource The file of a metamatrix model file.
* @return The XMIHeader for the model file
*/
public static XMIHeader getXmiHeader(final File resource) {
if (resource != null && resource.isFile() && resource.exists() && resource.canRead()) {
// check cache
if (CACHE != null) {
XMIHeader header = CACHE.getCachedXmiHeader(resource);
if (header != null) {
return header;
}
}
try {
XMIHeader header = XMIHeaderReader.readHeader(resource);
// add to cache
if (CACHE != null) {
CACHE.setXmiHeaderToCache(resource, header);
}
return header;
} catch (TeiidException e) {
LogManager.logWarning(RuntimeMetadataPlugin.PLUGIN_ID, e, e.getMessage());
} catch (IllegalArgumentException iae) {
// Swallowing this exception because we're doing all three checks that would produce it.
// If this exception is caught, it's because the files really were closed/deleted in another
// thread and this
// thread didn't know about it.
// Fixes Defect 22117
}
}
return null;
}
/**
* Return the XMIHeader for the specified inputstream of a model file.
*
* @param resourceStream The inputStream of a metamatrix model file.
* @return The XMIHeader for the model file
*/
public static XMIHeader getXmiHeader(final InputStream resourceStream) {
if (resourceStream != null) {
try {
return XMIHeaderReader.readHeader(resourceStream);
} catch (TeiidException e) {
LogManager.logWarning(RuntimeMetadataPlugin.PLUGIN_ID, e, e.getMessage());
}
}
return null;
}