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package org.eclipse.emf.cdo.server.internal.mongodb;
import org.eclipse.emf.cdo.server.CDOServerBrowser;
import org.eclipse.emf.cdo.server.CDOServerBrowser.AbstractPage;
import org.eclipse.emf.cdo.server.mongodb.IMongoDBStore;
import org.eclipse.emf.cdo.spi.server.InternalRepository;
import org.eclipse.net4j.util.factory.ProductCreationException;
import com.mongodb.BasicDBObject;
import com.mongodb.DB;
import com.mongodb.DBCollection;
import com.mongodb.DBCursor;
import com.mongodb.DBObject;
import java.io.PrintStream;
import java.util.Set;
/**
* @author Eike Stepper
* @since 4.0
*/
public class MongoDBBrowserPage extends AbstractPage
{
private static final boolean SHOW_INDEXES = true;
private static final boolean SHOW_DOCUMENTS = true;
private static final boolean SHOW_INITIAL_COMMIT = true;
public MongoDBBrowserPage()
{
super("collections", "MongoDB Collections");
}
public boolean canDisplay(InternalRepository repository)
{
return repository.getStore() instanceof IMongoDBStore;
}
public void display(CDOServerBrowser browser, InternalRepository repository, PrintStream out)
{
IMongoDBStore store = (IMongoDBStore)repository.getStore();
DB db = (DB)store.getDB();
out.print("<table border=\"0\">\r\n");
out.print("<tr>\r\n");
out.print("<td valign=\"top\">\r\n");
String collection = showCollections(browser, out, db, repository.getName());
out.print("</td>\r\n");
out.print("<td> </td>\r\n");
if (collection != null)
{
out.print("<td valign=\"top\">\r\n");
showCollection(browser, out, db, collection);
out.print("</td>\r\n");
}
out.print("</tr>\r\n");
out.print("</table>\r\n");
}
protected String showCollections(CDOServerBrowser browser, PrintStream pout, DB db, String repo)
{
String collection = browser.getParam("collection");
Set<String> allCollectionNames = db.getCollectionNames();
for (String collectionName : allCollectionNames)
{
if (collection == null)
{
collection = collectionName;
}
String label = browser.escape(collectionName)/* .toLowerCase() */;
if (collectionName.equals(collection))
{
pout.print("<b>" + label + "</b><br>\r\n");
}
else
{
pout.print(browser.href(label, getName(), "collection", collectionName) + "<br>\r\n");
}
}
return collection;
}
protected void showCollection(CDOServerBrowser browser, PrintStream pout, DB db, String collection)
{
DBCollection coll = db.getCollection(collection);
pout.print("<table border=\"1\" cellpadding=\"4\">\r\n");
pout.print("<tr><td colspan=\"2\" align=\"center\"><h2>" + collection + "</h2></td></tr>\r\n");
if (SHOW_INDEXES)
{
showIndexes(browser, pout, coll);
}
if (SHOW_DOCUMENTS)
{
showDocuments(browser, pout, coll);
}
}
protected void showIndexes(CDOServerBrowser browser, PrintStream pout, DBCollection coll)
{
pout.print("<tr><td colspan=\"2\" align=\"center\" bgcolor=\"EEEEEE\"><h4>Indexes</h4></td></tr>\r\n");
int i = 0;
for (DBObject index : coll.getIndexInfo())
{
++i;
String bg = (i & 1) == 1 ? "bgcolor=\"DDDDDD\"" : "bgcolor=\"EEEEEE\"";
pout.print("<tr><td valign=\"top\" " + bg + "><b>" + i + " </b></td><td valign=\"top\">");
showObject(browser, pout, index, "");
pout.print("</td></tr>\r\n");
}
}
protected void showDocuments(CDOServerBrowser browser, PrintStream pout, DBCollection coll)
{
DBCursor cursor = null;
try
{
pout.print("<tr><td colspan=\"2\" align=\"center\" bgcolor=\"EEEEEE\"><h4>Documents</h4></td></tr>\r\n");
int i = 0;
cursor = coll.find();
try
{
cursor = cursor.sort(new BasicDBObject("_id", 1));
}
catch (Exception ex)
{
// Ignore
}
while (cursor.hasNext())
{
DBObject doc = cursor.next();
++i;
if (i == 1 && showFirstCommit(coll))
{
continue;
}
String bg = (i & 1) == 1 ? "bgcolor=\"DDDDDD\"" : "bgcolor=\"EEEEEE\"";
pout.print("<tr><td valign=\"top\" " + bg + "><b>" + i + " </b></td><td valign=\"top\">");
showObject(browser, pout, doc, "");
pout.print("</td></tr>\r\n");
}
pout.print("</table>\r\n");
}
finally
{
if (cursor != null)
{
cursor.close();
}
}
}
protected void showObject(CDOServerBrowser browser, PrintStream pout, DBObject doc, String level)
{
Set<String> keySet = doc.keySet();
boolean highlight = false;
try
{
String paramKey = browser.getParam("key");
if (paramKey != null)
{
String paramValue = browser.getParam("value");
Object value = doc.get(paramKey);
if (String.valueOf(value).equals(paramValue))
{
highlight = true;
}
}
}
catch (Exception ex)
{
// Ignore
}
if (highlight)
{
pout.print("<table border=\"0\" bgcolor=\"#FFFFA8\"><tr><td>");
}
for (String key : keySet)
{
pout.print(level);
pout.print("<b>");
pout.print(key);
pout.print("</b> = ");
Object value = doc.get(key);
if (value instanceof DBObject)
{
DBObject child = (DBObject)value;
pout.print("<br>");
showObject(browser, pout, child, level + " ");
}
else
{
pout.print("<font color=\"#0000FF\">");
if (value instanceof String)
{
pout.print("\"");
pout.print(browser.escape((String)value));
pout.print("\"");
}
else
{
String string = String.valueOf(value);
pout.print(browser.href(string, "collections", "key", key, "value", string));
}
pout.print("</font><br>");
}
}
if (highlight)
{
pout.print("</td></tr></table>");
}
}
protected boolean showFirstCommit(DBCollection coll)
{
return coll.getName().equals(Commits.COMMITS) && !SHOW_INITIAL_COMMIT;
}
/**
* @author Eike Stepper
*/
public static class Factory extends org.eclipse.net4j.util.factory.Factory
{
public static final String TYPE = "default";
public Factory()
{
super(PRODUCT_GROUP, TYPE);
}
public MongoDBBrowserPage create(String description) throws ProductCreationException
{
return new MongoDBBrowserPage();
}
}
}
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