[client] move thrift cache to its own package

1 files changed, 87 insertions, 0 deletions

diff --git a/dozentenmodul/src/main/java/org/openslx/dozmod/thrift/cache/MetaDataCache.java b/dozentenmodul/src/main/java/org/openslx/dozmod/thrift/cache/MetaDataCache.java
new file mode 100644
index 00000000..340d95e8
--- /dev/null
+++ b/dozentenmodul/src/main/java/org/openslx/dozmod/thrift/cache/MetaDataCache.java
@@ -0,0 +1,87 @@
+package org.openslx.dozmod.thrift.cache;
+
+import java.util.List;
+
+import org.apache.log4j.Logger;
+import org.apache.thrift.TException;
+import org.openslx.bwlp.thrift.iface.OperatingSystem;
+import org.openslx.bwlp.thrift.iface.Virtualizer;
+import org.openslx.thrifthelper.ThriftManager;
+import org.openslx.util.GenericDataCache;
+
+public class MetaDataCache {
+
+	private static final Logger LOGGER = Logger.getLogger(MetaDataCache.class);
+
+	/**
+	 * How long to cache data.
+	 */
+	private static final int CACHE_TIME_MS = 60 * 60 * 1000;
+
+	private static final GenericDataCache<List<OperatingSystem>> osCache = new GenericDataCache<List<OperatingSystem>>(
+			CACHE_TIME_MS) {
+		@Override
+		protected List<OperatingSystem> update() throws TException {
+			try {
+				return ThriftManager.getSatClient().getOperatingSystems();
+			} catch (Exception e) {
+				LOGGER.warn("Could not get OS list from satellite, trying master for backup...", e);
+			}
+			return ThriftManager.getMasterClient().getOperatingSystems();
+		}
+	};
+
+	private static final GenericDataCache<List<Virtualizer>> virtualizerCache = new GenericDataCache<List<Virtualizer>>(
+			CACHE_TIME_MS) {
+		@Override
+		protected List<Virtualizer> update() throws TException {
+			try {
+				return ThriftManager.getSatClient().getVirtualizers();
+			} catch (TException e) {
+				LOGGER.warn("Could not get virtualizer list from satellite, trying master for backup...", e);
+			}
+			return ThriftManager.getMasterClient().getVirtualizers();
+		}
+	};
+
+	/**
+	 * Get all known/valid operating systems an image can be marked as.
+	 * 
+	 * @return
+	 */
+	public static List<OperatingSystem> getOperatingSystems() {
+		return osCache.get();
+	}
+
+	public static OperatingSystem getOsById(int id) {
+		List<OperatingSystem> list = getOperatingSystems();
+		if (list == null)
+			return null;
+		for (OperatingSystem os : list) {
+			if (os.getOsId() == id)
+				return os;
+		}
+		return null;
+	}
+
+	/**
+	 * Get all supported virtualizers an image can be declared to be run as.
+	 * 
+	 * @return
+	 */
+	public static List<Virtualizer> getVirtualizers() {
+		return virtualizerCache.get();
+	}
+
+	public static Virtualizer getVirtualizerById(String virtId) {
+		List<Virtualizer> list = getVirtualizers();
+		if (list == null)
+			return null;
+		for (Virtualizer virt : list) {
+			if (virt.getVirtId().equals(virtId))
+				return virt;
+		}
+		return null;
+	}
+
+}
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