private void deleteItems(Context c, String mapFile) throws Exception {
System.out.println("Deleting items listed in mapfile: " + mapFile);
// read in the mapfile
Map<String, String> myhash = readMapFile(mapFile);
// now delete everything that appeared in the mapFile
Iterator<String> i = myhash.keySet().iterator();
while (i.hasNext()) {
String itemID = myhash.get(i.next());
if (itemID.indexOf('/') != -1) {
String myhandle = itemID;
System.out.println("Deleting item " + myhandle);
deleteItem(c, myhandle);
} else {
// it's an ID
Item myitem = Item.find(c, Integer.parseInt(itemID));
System.out.println("Deleting item " + itemID);
deleteItem(c, myitem);
}
c.clearCache();
}
}
private void replaceItems(
Context c, Collection[] mycollections, String sourceDir, String mapFile, boolean template)
throws Exception {
// verify the source directory
File d = new java.io.File(sourceDir);
if (d == null || !d.isDirectory()) {
System.out.println("Error, cannot open source directory " + sourceDir);
System.exit(1);
}
// read in HashMap first, to get list of handles & source dirs
Map<String, String> myHash = readMapFile(mapFile);
// for each handle, re-import the item, discard the new handle
// and re-assign the old handle
for (Map.Entry<String, String> mapEntry : myHash.entrySet()) {
// get the old handle
String newItemName = mapEntry.getKey();
String oldHandle = mapEntry.getValue();
Item oldItem = null;
if (oldHandle.indexOf('/') != -1) {
System.out.println("\tReplacing: " + oldHandle);
// add new item, locate old one
oldItem = (Item) HandleManager.resolveToObject(c, oldHandle);
} else {
oldItem = Item.find(c, Integer.parseInt(oldHandle));
}
/* Rather than exposing public item methods to change handles --
* two handles can't exist at the same time due to key constraints
* so would require temp handle being stored, old being copied to new and
* new being copied to old, all a bit messy -- a handle file is written to
* the import directory containing the old handle, the existing item is
* deleted and then the import runs as though it were loading an item which
* had already been assigned a handle (so a new handle is not even assigned).
* As a commit does not occur until after a successful add, it is safe to
* do a delete as any error results in an aborted transaction without harming
* the original item */
File handleFile =
new File(sourceDir + File.separatorChar + newItemName + File.separatorChar + "handle");
PrintWriter handleOut = new PrintWriter(new FileWriter(handleFile, true));
if (handleOut == null) {
throw new Exception("can't open handle file: " + handleFile.getCanonicalPath());
}
handleOut.println(oldHandle);
handleOut.close();
deleteItem(c, oldItem);
addItem(c, mycollections, sourceDir, newItemName, null, template);
c.clearCache();
}
}
private void addItems(
Context c, Collection[] mycollections, String sourceDir, String mapFile, boolean template)
throws Exception {
Map<String, String> skipItems =
new HashMap<String, String>(); // set of items to skip if in 'resume'
// mode
System.out.println("Adding items from directory: " + sourceDir);
System.out.println("Generating mapfile: " + mapFile);
// create the mapfile
File outFile = null;
if (!isTest) {
// get the directory names of items to skip (will be in keys of
// hash)
if (isResume) {
skipItems = readMapFile(mapFile);
}
// sneaky isResume == true means open file in append mode
outFile = new File(mapFile);
mapOut = new PrintWriter(new FileWriter(outFile, isResume));
if (mapOut == null) {
throw new Exception("can't open mapfile: " + mapFile);
}
}
// open and process the source directory
File d = new java.io.File(sourceDir);
if (d == null || !d.isDirectory()) {
System.out.println("Error, cannot open source directory " + sourceDir);
System.exit(1);
}
String[] dircontents = d.list(directoryFilter);
Arrays.sort(dircontents);
for (int i = 0; i < dircontents.length; i++) {
if (skipItems.containsKey(dircontents[i])) {
System.out.println("Skipping import of " + dircontents[i]);
} else {
addItem(c, mycollections, sourceDir, dircontents[i], mapOut, template);
System.out.println(i + " " + dircontents[i]);
c.clearCache();
}
}
}
