1 files changed, 52 insertions, 0 deletions
diff --git a/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationUtils.java b/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationUtils.java
new file mode 100644
index 0000000..2427001
--- /dev/null
+++ b/src/main/java/org/openslx/virtualization/configuration/VirtualizationConfigurationUtils.java
@@ -0,0 +1,52 @@
+package org.openslx.virtualization.configuration;
+
+import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.openslx.bwlp.thrift.iface.OperatingSystem;
+
+/**
+ * Utilities to set up and edit virtualization configurations.
+ * 
+ * @author Manuel Bentele
+ * @version 1.0
+ */
+public final class VirtualizationConfigurationUtils
+{
+	/**
+	 * Returns an operating system from a given list of operating systems determined by the
+	 * virtualizer specific operating system parameters.
+	 * 
+	 * @param osList list of available operating systems.
+	 * @param virtId virtualizer identifier, e.g. <code>vmware</code> for VMware
+	 * @param virtOsId operating system identifier used by the virtualizer, eg.
+	 *           <code>windows7-64</code> for 64bit Windows 7 on VMware.
+	 */
+	public static OperatingSystem getOsOfVirtualizerFromList( List<OperatingSystem> osList, String virtId,
+			String virtOsId )
+	{
+		OperatingSystem os = null;
+
+		for ( final OperatingSystem osCandidate : osList ) {
+			final Map<String, String> osVirtualizerMapping = osCandidate.getVirtualizerOsId();
+			if ( osVirtualizerMapping != null ) {
+				for ( final Entry<String, String> entry : osVirtualizerMapping.entrySet() ) {
+					// check if suitable OS has been found
+					if ( entry.getKey().equals( virtId ) && entry.getValue().equals( virtOsId ) ) {
+						// save OS and exit inner loop since OS has been found
+						os = osCandidate;
+						break;
+					}
+				}
+
+				// exit outer loop if OS has been found
+				if ( os != null ) {
+					break;
+				}
+			}
+		}
+
+		return os;
+	}
+}