/**
* Copyright (C) 2010 EdgyTech LLC.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.edgytech.umongo;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonParser;
import com.mongodb.*;
import com.mongodb.util.JSONSerializers;
import com.mongodb.util.ObjectSerializer;
import java.util.Date;
import java.util.Map;
import javax.swing.tree.DefaultMutableTreeNode;
import org.bson.LazyDBList;
import org.bson.types.BSONTimestamp;
import org.bson.types.ObjectId;
/**
*
* @author antoine
*/
public class MongoUtils {
public static String queryOptionsToString(int options) {
String opt = "";
if ((options & Bytes.QUERYOPTION_TAILABLE) != 0) {
opt += "TAILABLE ";
}
if ((options & Bytes.QUERYOPTION_SLAVEOK) != 0) {
opt += "SLAVEOK ";
}
if ((options & Bytes.QUERYOPTION_OPLOGREPLAY) != 0) {
opt += "OPLOGREPLAY ";
}
if ((options & Bytes.QUERYOPTION_NOTIMEOUT) != 0) {
opt += "NOTIMEOUT ";
}
if ((options & Bytes.QUERYOPTION_AWAITDATA) != 0) {
opt += "AWAITDATA ";
}
if ((options & Bytes.QUERYOPTION_EXHAUST) != 0) {
opt += "EXHAUST ";
}
return opt;
}
public static void addChildrenToTreeNode(DefaultMutableTreeNode node, DBObject obj) {
for (String key : obj.keySet()) {
Object val = obj.get(key);
// if (val == null) {
// continue;
// }
DefaultMutableTreeNode child = new DefaultMutableTreeNode(new TreeNodeDocumentField(key, val));
if (val instanceof DBObject) {
addChildrenToTreeNode(child, (DBObject) val);
} else if (val instanceof ObjectId) {
// break it down
ObjectId id = (ObjectId) val;
child.add(new DefaultMutableTreeNode("Time: " + id.getTime() + " = " + new Date(id.getTime()).toString()));
child.add(new DefaultMutableTreeNode("Machine: " + (id.getMachine() & 0xFFFFFFFFL)));
child.add(new DefaultMutableTreeNode("Inc: " + (id.getInc() & 0xFFFFFFFFL)));
}
node.add(child);
}
}
public static String getObjectString(Object obj) {
return getObjectString(obj, 0);
}
public static String getObjectString(Object obj, int limit) {
String str;
if (obj == null) {
str = "null";
} else if (obj instanceof DBObject || obj instanceof byte[]) {
// get rid of annoying scientific format
str = MongoUtils.getJSON(obj);
} else if (obj instanceof Double) {
// get rid of annoying scientific format
str = String.format("%f", obj);
} else if (obj instanceof String) {
// should show quotes to be JSON like
str = "\"" + obj + "\"";
} else {
str = obj.toString();
}
return limitString(str, limit);
}
public static String limitString(String str, int limit) {
if (limit <= 0) {
limit = UMongo.instance.getPreferences().getInlineDocumentLength();
}
if (str.length() > limit && limit > 0) {
int max = Math.max(0, limit - 3);
str = str.substring(0, max) + " ..";
}
return str;
}
static ObjectSerializer getSerializer() {
return JSONSerializers.getStrict();
}
static String getJSONPreview(Object value) {
return MongoUtils.limitString(getSerializer().serialize(value), 80);
}
static String getJSON(Object value) {
return getSerializer().serialize(value);
}
public static DBObject getReplicaSetInfo(MongoClient mongo) {
DB db = mongo.getDB("local");
DBObject result = new BasicDBObject();
DBCollection namespaces = db.getCollection("system.namespaces");
String oplogName;
if (namespaces.findOne(new BasicDBObject("name", "local.oplog.rs")) != null) {
oplogName = "oplog.rs";
} else if (namespaces.findOne(new BasicDBObject("name", "local.oplog.$main")) != null) {
oplogName = "oplog.$main";
} else {
return null;
}
DBObject olEntry = namespaces.findOne(new BasicDBObject("name", "local." + oplogName));
if (olEntry != null && olEntry.containsField("options")) {
BasicDBObject options = (BasicDBObject) olEntry.get("options");
long size = options.getLong("size");
result.put("logSizeMB", Float.valueOf(String.format("%.2f", size / 1048576f)));
} else {
return null;
}
DBCollection oplog = db.getCollection(oplogName);
int size = oplog.getStats().getInt("size");
result.put("usedMB", Float.valueOf(String.format("%.2f", size / 1048576f)));
DBCursor firstc = oplog.find().sort(new BasicDBObject("$natural", 1)).limit(1);
DBCursor lastc = oplog.find().sort(new BasicDBObject("$natural", -1)).limit(1);
if (!firstc.hasNext() || !lastc.hasNext()) {
return null;
}
BasicDBObject first = (BasicDBObject) firstc.next();
BasicDBObject last = (BasicDBObject) lastc.next();
BSONTimestamp tsfirst = (BSONTimestamp) first.get("ts");
BSONTimestamp tslast = (BSONTimestamp) last.get("ts");
if (tsfirst == null || tslast == null) {
return null;
}
int ftime = tsfirst.getTime();
int ltime = tslast.getTime();
int timeDiffSec = ltime - ftime;
result.put("timeDiff", timeDiffSec);
result.put("timeDiffHours", Float.valueOf(String.format("%.2f", timeDiffSec / 3600f)));
result.put("tFirst", new Date(ftime * 1000l));
result.put("tLast", new Date(ltime * 1000l));
result.put("now", new Date());
return result;
}
public static boolean isBalancerOn(MongoClient mongo) {
final DB config = mongo.getDB("config");
final DBCollection settings = config.getCollection("settings");
BasicDBObject res = (BasicDBObject) settings.findOne(new BasicDBObject("_id", "balancer"));
if (res == null || !res.containsField("stopped"))
return true;
return !res.getBoolean("stopped");
}
static String makeInfoString(Object ... args) {
String info = "";
for (int i = 0; i < args.length; i += 2) {
if (i > 0)
info += ", ";
info += args[i] + "=[" + args[i + 1] + "]";
}
return info;
}
public static DBObject checkObject( DBObject o , boolean canBeNull , boolean query ){
if ( o == null ){
if ( canBeNull )
return null;
throw new IllegalArgumentException( "can't be null" );
}
if ( o.isPartialObject() && ! query )
throw new IllegalArgumentException( "can't save partial objects" );
if ( ! query ){
checkKeys(o);
}
return o;
}
/**
* Checks key strings for invalid characters.
*/
public static void checkKeys( DBObject o ) {
if ( o instanceof LazyDBObject || o instanceof LazyDBList )
return;
for ( String s : o.keySet() ){
validateKey ( s );
Object inner = o.get( s );
if ( inner instanceof DBObject ) {
checkKeys( (DBObject)inner );
} else if ( inner instanceof Map ) {
checkKeys( (Map<String, Object>)inner );
}
}
}
/**
* Checks key strings for invalid characters.
*/
public static void checkKeys( Map<String, Object> o ) {
for ( String s : o.keySet() ){
validateKey ( s );
Object inner = o.get( s );
if ( inner instanceof DBObject ) {
checkKeys( (DBObject)inner );
} else if ( inner instanceof Map ) {
checkKeys( (Map<String, Object>)inner );
}
}
}
/**
* Check for invalid key names
* @param s the string field/key to check
* @exception IllegalArgumentException if the key is not valid.
*/
public static void validateKey(String s ) {
if ( s.contains( "." ) )
throw new IllegalArgumentException( "fields stored in the db can't have . in them. (Bad Key: '" + s + "')" );
if ( s.startsWith( "$" ) )
throw new IllegalArgumentException( "fields stored in the db can't start with '$' (Bad Key: '" + s + "')" );
}
private static JsonParser jsonParser;
public static JsonParser getJsonParser() {
if (jsonParser == null) {
jsonParser = new JsonParser();
}
return jsonParser;
}
private static Gson gson;
public static Gson getGson() {
if (gson == null) {
gson = new GsonBuilder().setPrettyPrinting().disableHtmlEscaping().create();
}
return gson;
}
}