protected OutlineNode getNode(
Hashtable linkTable, Link link, int parentId, String linkLabel, Set visited)
throws ZenoException {
Integer otherId =
new Integer((link.getSourceId() == parentId) ? link.getTargetId() : link.getSourceId());
OutlineNode node = genOutlineNode(link, parentId);
if (visited.contains(otherId)) {
node.setDuplicate(true);
return node;
} else {
visited.add(otherId);
List links = (List) linkTable.get(otherId);
if (links != null) {
Iterator it = links.iterator();
while (it.hasNext()) {
LinkImpl link1 = (LinkImpl) it.next();
if ("".equals(linkLabel) || link1.getLabel().equals(linkLabel))
node.add(getNode(linkTable, link1, otherId.intValue(), linkLabel, visited));
else node.add(genOutlineNode(link1, otherId.intValue()));
}
Collections.sort(node.getChildren(), new NodeComparator());
}
return node;
}
}
/**
* collects all inlinks or outlinks of the journal in linkTable if direction is < 0 or > 0
* respectively
*/
public void collectLinks(Hashtable linkTable, String linkLabel, int direction)
throws ZenoException {
StringBuffer buf = new StringBuffer();
buf.append(
"select label, source_alias, target_alias, source, target, flag from link, resource");
if (direction < 0) buf.append(" where target=id");
else buf.append(" where source=id");
if (collection instanceof Topic) buf.append(" and part=");
else buf.append(" and parent=");
buf.append(DBClient.format(this.id));
if (!"".equals(linkLabel)) {
buf.append(" and label = ");
buf.append(DBClient.format(linkLabel));
}
buf.append(" and source_mark='false' and target_mark='false'");
List allLinks = LinkImpl.getLinksWhere(factory, buf.toString());
Iterator it = allLinks.iterator();
while (it.hasNext()) {
LinkImpl link = (LinkImpl) it.next();
Integer keyId = new Integer((direction < 0) ? link.getTargetId() : link.getSourceId());
List links = (List) linkTable.get(keyId);
if (links == null) {
links = new ArrayList();
linkTable.put(keyId, links);
}
links.add(link);
}
}
protected void collectLinksBut(Hashtable linkTable, String linkLabel) throws ZenoException {
StringBuffer buf = new StringBuffer();
buf.append(
"select distinct label, source_alias, target_alias, source,target, flag from link, resource");
buf.append(" where (target=id or source =id) ");
if (collection instanceof Topic) buf.append(" and part=");
else buf.append(" and parent=");
buf.append(DBClient.format(this.id));
if (linkLabel != null && !linkLabel.equals("")) {
buf.append(" and label<>");
buf.append(DBClient.format(linkLabel));
}
// heg
buf.append(" and source_mark='false' and target_mark='false'");
List alllinks = LinkImpl.getLinksWhere(factory, buf.toString());
Iterator it = alllinks.iterator();
while (it.hasNext()) {
LinkImpl link = (LinkImpl) it.next();
Integer targetId = new Integer(link.getTargetId());
List links = (List) linkTable.get(targetId);
if (links == null) {
links = new ArrayList();
linkTable.put(targetId, links);
}
links.add(link);
Integer sourceId = new Integer(link.getSourceId());
links = (List) linkTable.get(sourceId);
if (links == null) {
links = new ArrayList();
linkTable.put(sourceId, links);
}
links.add(link);
}
}
protected List getXOutline(Hashtable mainLinkTable, List articles) throws ZenoException {
comparator = new NodeComparator2();
List result = new ArrayList();
Iterator artit = articles.iterator();
List outlineLinks = new ArrayList();
Hashtable resTable = new Hashtable();
Hashtable visited = new Hashtable();
int nr = 1;
while (artit.hasNext()) {
ArticleImpl art = (ArticleImpl) artit.next();
OutlineNode artNode = new OutlineNode("", Integer.toString(art.getId()), art.getAlias());
artNode.setPosition(Integer.toString(nr++));
artNode.setResource(art);
collectOutlineLinks(mainLinkTable, art.id, outlineLinks);
resTable.put(new Integer(art.getId()), art);
result.add(artNode);
}
LinkImpl.fillLinks(factory, outlineLinks, resTable, false);
Iterator resit = result.iterator();
while (resit.hasNext()) {
OutlineNode artNode = (OutlineNode) resit.next();
Article root = (Article) artNode.getResource();
genChildren(mainLinkTable, artNode, visited, root);
}
return result;
}
protected static void collectOutlineLinks(Hashtable linkTable, int id, List outlineLinks) {
List links = (List) linkTable.get(new Integer(id));
if (links != null) {
Iterator it = links.iterator();
while (it.hasNext()) {
LinkImpl link = (LinkImpl) it.next();
if (!outlineLinks.contains(link)) {
outlineLinks.add(link);
int otherId;
if (link.getSourceId() == id) {
otherId = link.getTargetId();
} else {
otherId = link.getSourceId();
}
collectOutlineLinks(linkTable, otherId, outlineLinks);
}
}
}
}
public List getFullOutline(Hashtable mainLinkTable, List articles) throws ZenoException {
comparator = new NodeComparator2();
List result = new ArrayList();
Iterator artit = articles.iterator();
Hashtable resTable = genResTable(articles);
Hashtable visited = new Hashtable();
int nr = 1;
while (artit.hasNext()) {
ArticleImpl art = (ArticleImpl) artit.next();
if (art instanceof Topic || visited.get(new Integer(art.getId())) == null) {
OutlineNode artNode = new OutlineNode("", Integer.toString(art.getId()), art.getAlias());
artNode.setPosition(Integer.toString(nr++));
artNode.setResource(art);
result.add(artNode);
List outlineLinks = new ArrayList();
collectOutlineLinks(mainLinkTable, art.id, outlineLinks);
LinkImpl.fillLinks(factory, outlineLinks, resTable, false);
genChildren(mainLinkTable, artNode, visited, art);
}
}
return result;
}
protected void collectOutlineLinks(Hashtable linkTable, ZenoResource res, List outlineLinks) {
int id = ((ResourceImpl) res).id;
List links = (List) linkTable.get(new Integer(id));
if (links != null) {
Iterator it = links.iterator();
while (it.hasNext()) {
LinkImpl link = (LinkImpl) it.next();
if (!outlineLinks.contains(link)) {
outlineLinks.add(link);
int otherId;
if (link.getSourceId() == id) {
link.setSourceResource(res);
otherId = link.getTargetId();
} else {
link.setTargetResource(res);
otherId = link.getSourceId();
}
collectOutlineLinks(linkTable, otherId, outlineLinks);
}
}
}
}
