SGF-10

SGF-17
+ add config support classes

src/main/java/org/springframework/data/gemfire/config/EvictionAttributesFactoryBean.java

@@ -0,0 +1,136 @@
+/*
+ * Copyright 2010 the original author or authors.
+ *
+ * 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 org.springframework.data.gemfire.config;
+
+import org.springframework.beans.factory.FactoryBean;
+import org.springframework.beans.factory.InitializingBean;
+
+import com.gemstone.gemfire.cache.EvictionAction;
+import com.gemstone.gemfire.cache.EvictionAttributes;
+import com.gemstone.gemfire.cache.util.ObjectSizer;
+
+/**
+ * Simple utility class used for defining nested factory-method like definitions w/o polluting the container with useless beans.
+ * 
+ * @author Costin Leau
+ */
+class EvictionAttributesFactoryBean implements FactoryBean<EvictionAttributes>, InitializingBean {
+
+	private EvictionAttributes evictionAttr;
+
+	private Integer threshold = null;
+	private ObjectSizer objectSizer = null;
+	private EvictionAction action = null;
+	private EvictionType type = EvictionType.ENTRY_COUNT;
+
+	public void afterPropertiesSet() {
+		if (action == null) {
+			action = EvictionAction.DEFAULT_EVICTION_ACTION;
+		}
+
+		evictionAttr = createAttributes();
+	}
+
+	private EvictionAttributes createAttributes() {
+		switch (type) {
+		case HEAP_PERCENTAGE:
+			return EvictionAttributes.createLRUHeapAttributes(objectSizer, action);
+
+		case MEMORY_SIZE:
+			if (threshold != null) {
+				return EvictionAttributes.createLRUMemoryAttributes(threshold, objectSizer, action);
+			}
+			return EvictionAttributes.createLRUMemoryAttributes(objectSizer, action);
+
+		// consider entry count as default
+		case ENTRY_COUNT:
+		default:
+			if (threshold != null) {
+				return EvictionAttributes.createLRUEntryAttributes(threshold, action);
+			}
+			return EvictionAttributes.createLRUMemoryAttributes(threshold);
+		}
+	}
+
+	public EvictionAttributes getObject() {
+		return evictionAttr;
+	}
+
+	public Class<?> getObjectType() {
+		return (evictionAttr != null ? evictionAttr.getClass() : EvictionAttributes.class);
+	}
+
+	public boolean isSingleton() {
+		return true;
+	}
+
+	/**
+	 * @return the threshold
+	 */
+	public int getThreshold() {
+		return threshold;
+	}
+
+	/**
+	 * @param threshold the threshold to set
+	 */
+	public void setThreshold(int threshold) {
+		this.threshold = threshold;
+	}
+
+	/**
+	 * @return the objectSizer
+	 */
+	public ObjectSizer getObjectSizer() {
+		return objectSizer;
+	}
+
+	/**
+	 * @param objectSizer the objectSizer to set
+	 */
+	public void setObjectSizer(ObjectSizer objectSizer) {
+		this.objectSizer = objectSizer;
+	}
+
+	/**
+	 * @return the action
+	 */
+	public EvictionAction getAction() {
+		return action;
+	}
+
+	/**
+	 * @param action the action to set
+	 */
+	public void setAction(EvictionAction action) {
+		this.action = action;
+	}
+
+	/**
+	 * @return the type
+	 */
+	public EvictionType getType() {
+		return type;
+	}
+
+	/**
+	 * @param type the type to set
+	 */
+	public void setType(EvictionType type) {
+		this.type = type;
+	}
+}

src/main/java/org/springframework/data/gemfire/config/EvictionType.java

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2010 the original author or authors.
+ *
+ * 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 org.springframework.data.gemfire.config;
+
+/**
+ * Simple enumeration for the various GemFire eviction types.
+ * 
+ * @author Costin Leau
+ */
+enum EvictionType {
+
+	ENTRY_COUNT, MEMORY_SIZE, HEAP_PERCENTAGE
+}