- Added ant build file

- Updated the readme files

documentation/src/main/resources/build.xml

+<?xml version="1.0"?>
+
+<!--
+ 
+July 2010
+
+Build file or Makefile for CloudSim.
+
+Note: 
+
+  Make sure you have installed 'ant' and put the location of it into
+  your path so you can access it anywhere.
+  'ant' can be downloadable from http://ant.apache.org/
+      
+Usage:
+ 
+  * Type 'ant' to compile all cloudsim source files, put them into the 
+    classes/ directory and to create a cloudsim-new.jar file in the jars/ directory
+    
+  * Type 'ant clean' to delete all the compiled classes and the classes/ 
+    directory itself. The generated cloudsim-new.jar is not deleted.  
+    
+Note:
+
+  * You need to set up PATH for ant in Windows and/or Unix.    
+  
+Acknowledgement: 
+  Thank to Uros Cibej for providing this file and instruction on
+  how to use it.
+   
+-->
+
+
+<project name="CloudSim" basedir="." default="makejar">
+    <description>
+            This is the build file for CloudSim
+    </description>
+
+    <!-- location to store Java classes -->         
+    <property name="class.dir" location="./classes" />
+    
+    <!-- location to store CloudSim source files -->
+    <property name="src.dir" location="./sources" />
+    
+    <!-- location to store jar files -->
+    <property name="jar.dir" location="./jars" />
+    
+    <target name="prepare">
+        <mkdir dir="${class.dir}" />
+    </target>
+
+    <!-- rule to compile CloudSim source files -->
+    <target name="build" depends="prepare">
+        <javac srcdir="${src.dir}" destdir="${class.dir}" classpath="${classpath}" />
+    </target>
+
+    <!-- Rule for making a jar file. 
+    
+         Note:
+         
+           * The new jar file is named as "cloudsim-new.jar" to avoid overriding 
+             the existing jar file.
+             
+           * The new jar file only contains cloudsim classes only. 
+    -->
+	
+    <target name="makejar" depends="build">
+        <echo>Compiling a new jar file, named: "cloudsim-new.jar".</echo>
+        <echo>This jar file contains CloudSim classes only.</echo>
+        <jar destfile="${jar.dir}/cloudsim-new.jar" basedir="${class.dir}" /> 
+    </target>        
+    
+    <target name="clean" description="clean up" >
+        <delete dir="${class.dir}" />
+    </target>
+    
+</project>

documentation/src/main/resources/examples.txt

-This directory contains examples in the use of CloudSim
+Running the CloudSim examples
+-----------------------------
 
+To run the CloudSim examples you need to do the following steps.
 
-To compile the example source codes:
+In Windows:
 
-    In Unix/Linux: javac -classpath $CLOUDSIM/jar/cloudsim-2.0.jar:. cloudsim/examples/CloudSimExampleX.java
-    In Windows:    javac -classpath %CLOUDSIM%\jar\cloudsim-2.0.jar;. cloudsim\examples\CloudSimExampleX.java
+1. cd <PATH TO CLOUDSIM PACKAGE>\jars
+2. java -classpath cloudsim-<VERSION>.jar;cloudsim-examples-<VERSION>.jar org.cloudbus.cloudsim.examples.CloudSimExample<EXAMPLE NUMBER>
 
-To run the class file:
-    In Unix/Linux:
-        java -classpath $CLOUDSIM/jar/cloudsim-2.0.jar:. cloudsim.examples.CloudSimExampleX > file.txt
+In Unix/Linux:
 
-    In Windows:
-        java -classpath %CLOUDSIM%\jar\cloudsim-2.0.jar;. cloudsim.examples.CloudSimExampleX > file.txt
+1. cd <PATH TO CLOUDSIM PACKAGE>/jars
+2. java -classpath cloudsim-<VERSION>.jar:cloudsim-examples-<VERSION>.jar org.cloudbus.cloudsim.examples.CloudSimExample<EXAMPLE NUMBER>
 
-The above command means run the program and output the results into a file
-named "file.txt" rather than into screen or standard output.
+Where you need to replace:
 
+<PATH TO CLOUDSIM PACKAGE> - by the path to a directory where you have unpacked the CloudSim package
+<VERSION> - by the version of the downloaded CloudSim package
+<EXAMPLE NUMBER> - by the of number of the example you want to run
 
-Here are the summary of what each example does:
+
+CloudSim examples source code
+-----------------------------
+
+You can find the source code of the examples in <PATH TO CLOUDSIM PACKAGE>/examples/org/cloudbus/cloudsim/examples/
+
+
+Compiling and running examples
+------------------------------
+
+To compile and run an example (let's say org.cloudbus.cloudsim.examples.CloudSimExample1) you need to do the following steps:
+
+In Windows:
+
+1. cd <PATH TO CLOUDSIM PACKAGE>
+2. javac -classpath jars\cloudsim-<VERSION>.jar examples\org\cloudbus\cloudsim\examples\CloudSimExample1.java
+3. java -classpath jars\cloudsim-<VERSION>.jar;examples org.cloudbus.cloudsim.examples.CloudSimExample1
+
+In Unix/Linux:
+
+1. cd <PATH TO CLOUDSIM PACKAGE>
+2. javac -classpath jars/cloudsim-<VERSION>.jar examples/org/cloudbus/cloudsim/examples/CloudSimExample1.java
+3. java -classpath jars/cloudsim-<VERSION>.jar:examples org.cloudbus.cloudsim.examples.CloudSimExample1
+
+
+Description of the CloudSim examples
+------------------------------------
+
+Here is the description of what each example does:
 
 CloudSimExample1.java : shows how to create a datacenter with one host and run one cloudlet on it.
 
@@ -38,6 +68,6 @@ CloudSimExample7.java : shows how to pause simulations.
 
 CloudSimExample8.java : shows how to add entities in run time.
 
-network: this directory contains examples on how to run simulation with network simulation.
+network: this package contains examples on how to run simulation with network simulation.
 
-power: this directory contains examples on how to use CloudSim's power-aware features.
+power: this package contains examples on how to use CloudSim's power-aware features.
\ No newline at end of file

documentation/src/main/resources/readme.txt

-Directory Structure of CloudSim Toolkit 2.0
----------------------------------------
-
-$CLOUDSIM/			-- top level CloudSim directory
-	classes/		-- The CloudSim class files
-	doc/			-- CloudSim API Documentation
-	examples/		-- CloudSim examples and Class Diagram
-	jar/			-- CloudSim jar archives
-	lib/			-- external libraries
-	src/			-- CloudSim source code
-	test			-- CloudSim unit tests
-
-Software Requirements : Java version 1.6 or newer
----------------------
+Directory structure of the CloudSim Toolkit
+-------------------------------------------
+
+cloudsim/			-- top level CloudSim directory
+	docs/			-- CloudSim API Documentation
+	examples/		-- CloudSim examples
+	jars/			-- CloudSim jar archives
+	sources/		-- CloudSim source code
+	tests/			-- CloudSim unit tests
+
+
+Software requirements: Java version 1.6 or newer
+-------------------------------------------------
+
 CloudSim has been tested and ran on Sun's Java version 1.6.0 or newer.
 Older versions of Java are not compatible.
 If you have non-Sun Java version, such as gcj or J++, they may not be compatible.
 You also need to install Ant to compile CloudSim (explained in more details later).
 
 
-Installation and Running CloudSim Toolkit
-----------------------------------------
-You just need to unpack the CloudSim file to install.
-If you want to remove CloudSim, then remove the whole $CLOUDSIM directory.
-
-NOTE: You do not need to compile CloudSim source code. The JAR file is
-      provided to compile and to run CloudSim applications.
-
-* cloudsim.jar -- contains CloudSim class files only
+Installation and running the CloudSim Toolkit
+-----------------------------------------
 
-To compile and run CloudSim applications, do the following step:
-1) Go the directory where the CloudSim's Examples reside
-   In Unix or Linux: cd $CLOUDSIM/examples/
-   In Windows:       cd %CLOUDSIM%\examples\
+You just need to unpack the CloudSim file to install.
+If you want to remove CloudSim, then remove the whole cloudsim directory.
+You do not need to compile CloudSim source code. The JAR files are
+provided to compile and to run CloudSim applications:
 
-2) Compile the Java source file
-   In Unix or Linux: javac -classpath $CLOUDSIM/jar/cloudsim-2.0.jar:. cloudsim/examples/CloudSimExampleX.java
-   In Windows:       javac -classpath %CLOUDSIM%\jar\cloudsim-2.0.jar;. cloudsim\examples\CloudSimExampleX.java
+  * jars/cloudsim-<VERSION>.jar						-- contains the CloudSim class files
+  * jars/cloudsim-<VERSION>-sources.jar				-- contains the CloudSim source code files
+  * jars/cloudsim-examples-<VERSION>.jar			-- contains the CloudSim examples class files
+  * jars/cloudsim-examples-<VERSION>-sources.jar	-- contains the CloudSim examples source code files
+  
 
-3) Running the Java class file
-   In Unix or Linux: java -classpath $CLOUDSIM/jar/cloudsim-2.0.jar:. cloudsim.examples.CloudSimExampleX
-   In Windows:       java -classpath %CLOUDSIM%\jar\cloudsim-2.0.jar;. cloudsim.examples.CloudSimExampleX
+Running the CloudSim examples
+-----------------------------
 
-NOTE:
-* $CLOUDSIM or %CLOUDSIM% is the location of the CloudSim Toolkit package.
+Please read how to run the CloudSim examples in examples.txt
 
 
 Learning CloudSim
 -----------------
+
 To understand how to use CloudSim, please go through the examples provided
-in the $CLOUDSIM/examples/ directory.
+in the examples/ directory.
+
+
+Compiling CloudSim: using Ant
+-----------------------------
 
-Compiling CloudSim : Using Ant
-------------------
 This release contains a simple buildfile for compiling CloudSim classes.
 You need to have ant installed (http://ant.apache.org/).
 Ant can be used in both Windows and Unix/Linux environment.
 
 Usage:
-* type 'ant' to compile all CloudSim source files and put them into
-  classes/ directory
-* type 'ant makejar' to compile the source files (if necessary) and to create
-  a new jar file called "new_cloudsim.jar" into jars/ directory.
-
-NOTE:
-* You need to set up PATH for ant in Windows and/or Unix.
-* rule for javadoc is not included yet. Use javadoc.sh script on Unix instead.
+
+  * Being in the CloudSim root directory (cloudsim/), type 'ant' to compile all 
+    cloudsim source files, put them into the classes/ directory and to create 
+    a cloudsim-new.jar file in the jars/ directory
+    
+  * Being in the CloudSim root directory (cloudsim/), type 'ant clean' to delete 
+    all the compiled classes and the classes/ directory itself. The generated 
+    cloudsim-new.jar is not deleted.
+
+Note:
+
+  * You need to set up PATH for ant in Windows and/or Unix.
 

modules/cloudsim/src/main/java/org/cloudbus/cloudsim/VmAllocationPolicySimple.java

@@ -79,7 +79,7 @@ public class VmAllocationPolicySimple extends VmAllocationPolicy {
 
 		if (!getVmTable().containsKey(vm.getUid())) { //if this vm was not created
 
-			do {//we still trying until we find a host or untill we try all of them
+			do {//we still trying until we find a host or until we try all of them
 				int moreFree = Integer.MIN_VALUE;
 				int idx = -1;