JAVA-434: replaced isEmpty() with 1.5 compatible alternative

Author: scotthernandez

src/main/com/mongodb/DBCollection.java

@@ -485,7 +485,7 @@ public void ensureIndex( DBObject keys , String name )
     public void ensureIndex( DBObject keys , String name , boolean unique )
         throws MongoException {
         DBObject options = defaultOptions( keys );
-        if (name != null && !name.isEmpty())
+        if (name != null && name.length()>0)
             options.put( "name" , name );
         if ( unique )
             options.put( "unique" , Boolean.TRUE );

src/main/com/mongodb/Mongo.java

@@ -718,7 +718,7 @@ public void run() {
     public String toString() {
         StringBuilder str = new StringBuilder("Mongo: ");
         List<ServerAddress> list = getServerAddressList();
-        if (list == null || list.isEmpty())
+        if (list == null || list.size() == 0)
             str.append("null");
         else {
             for ( ServerAddress addr : list )

src/main/com/mongodb/MongoURI.java

@@ -16,11 +16,11 @@
 
 package com.mongodb;
 
-import java.util.List;
-import java.util.LinkedList;
+import java.net.UnknownHostException;
 import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
 import java.util.logging.Logger;
-import java.net.UnknownHostException;
 
 /**
  * Represents a <a href="http://www.mongodb.org/display/DOCS/Connections">URI</a>
@@ -160,7 +160,7 @@ else if ( key.equals( "waitqueuemultiple" ) )
 
     boolean _parseBoolean( String _in ){
         String in = _in.trim();
-        if ( in != null && !in.isEmpty() && ( in.equals( "1" ) || in.toLowerCase().equals( "true" ) || in.toLowerCase()
+        if ( in != null && in.length() > 0 && ( in.equals( "1" ) || in.toLowerCase().equals( "true" ) || in.toLowerCase()
                                                                                                          .equals( "yes" ) ) )
             return true;
         else return false;

src/main/com/mongodb/ReplicaSetStatus.java

@@ -346,7 +346,7 @@ public String toJSON(){
             buf.append( "isMaster:" ).append( _isMaster ).append( ", " );
             buf.append( "isSecondary:" ).append( _isSecondary ).append( ", " );
             buf.append( "priority:" ).append( _priority ).append( ", " );
-            if(_tags != null && !_tags.isEmpty())
+            if(_tags != null && _tags.size() > 0)
 		buf.append( "tags:" ).append( JSON.serialize( _tags )  );
             buf.append("}");
 
@@ -438,7 +438,7 @@ synchronized void updateAll(){
             n.update(seenNodes);
         }
 
-        if (!seenNodes.isEmpty()) {
+        if (seenNodes.size() > 0) {
             // not empty, means that at least 1 server gave node list
             // remove unused hosts
             Iterator<Node> it = _all.iterator();