new MongoOptionsFactoryBean for easy config of the MongoOptions instance

spring-datastore-mongodb/src/main/java/org/springframework/data/document/mongodb/bean/factory/MongoOptionsFactoryBean.java

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+/*
+ * 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.document.mongodb.bean.factory;
+
+import org.springframework.beans.factory.FactoryBean;
+import org.springframework.beans.factory.InitializingBean;
+
+
+import com.mongodb.MongoOptions;
+
+/**
+ * A factory bean for consruction a MongoOptions instance
+ * 
+ * @author Graeme Rocher
+ *
+ */
+public class MongoOptionsFactoryBean implements FactoryBean<MongoOptions>, InitializingBean{
+
+	private static final MongoOptions MONGO_OPTIONS = new MongoOptions();
+    /**
+       number of connections allowed per host
+       will block if run out
+     */
+    private int connectionsPerHost = MONGO_OPTIONS.connectionsPerHost;
+
+    /**
+       multiplier for connectionsPerHost for # of threads that can block
+       if connectionsPerHost is 10, and threadsAllowedToBlockForConnectionMultiplier is 5, 
+       then 50 threads can block
+       more than that and an exception will be throw
+     */
+    private int threadsAllowedToBlockForConnectionMultiplier = MONGO_OPTIONS.threadsAllowedToBlockForConnectionMultiplier;
+    
+    /**
+     * max wait time of a blocking thread for a connection
+     */
+    private int maxWaitTime = MONGO_OPTIONS.maxWaitTime;
+
+    /**
+       connect timeout in milliseconds. 0 is default and infinite
+     */
+    private int connectTimeout = MONGO_OPTIONS.connectTimeout;
+
+    /**
+       socket timeout.  0 is default and infinite
+     */
+    private int socketTimeout = MONGO_OPTIONS.socketTimeout;
+    
+    /**
+       this controls whether or not on a connect, the system retries automatically 
+    */
+    private boolean autoConnectRetry = MONGO_OPTIONS.autoConnectRetry;
+    
+    
+    /**
+    	number of connections allowed per host
+    	will block if run out
+     */    
+	public void setConnectionsPerHost(int connectionsPerHost) {
+		this.connectionsPerHost = connectionsPerHost;
+	}
+
+    /**
+    	multiplier for connectionsPerHost for # of threads that can block
+    	if connectionsPerHost is 10, and threadsAllowedToBlockForConnectionMultiplier is 5, 
+    	then 50 threads can block
+    	more than that and an exception will be throw
+     */	
+	public void setThreadsAllowedToBlockForConnectionMultiplier(
+			int threadsAllowedToBlockForConnectionMultiplier) {
+		this.threadsAllowedToBlockForConnectionMultiplier = threadsAllowedToBlockForConnectionMultiplier;
+	}
+
+    /**
+     * max wait time of a blocking thread for a connection
+     */	
+	public void setMaxWaitTime(int maxWaitTime) {
+		this.maxWaitTime = maxWaitTime;
+	}
+
+    /**
+    	connect timeout in milliseconds. 0 is default and infinite
+     */
+	public void setConnectTimeout(int connectTimeout) {
+		this.connectTimeout = connectTimeout;
+	}
+
+    /**
+    	socket timeout.  0 is default and infinite
+     */	
+	public void setSocketTimeout(int socketTimeout) {
+		this.socketTimeout = socketTimeout;
+	}
+
+    /**
+    	this controls whether or not on a connect, the system retries automatically 
+     */	
+	public void setAutoConnectRetry(boolean autoConnectRetry) {
+		this.autoConnectRetry = autoConnectRetry;
+	}
+
+	public void afterPropertiesSet() throws Exception {
+		MONGO_OPTIONS.connectionsPerHost = connectionsPerHost;
+		MONGO_OPTIONS.threadsAllowedToBlockForConnectionMultiplier = threadsAllowedToBlockForConnectionMultiplier;
+		MONGO_OPTIONS.maxWaitTime = maxWaitTime;
+		MONGO_OPTIONS.connectTimeout = connectTimeout;
+		MONGO_OPTIONS.socketTimeout = socketTimeout;
+		MONGO_OPTIONS.autoConnectRetry = autoConnectRetry;
+		
+	}
+
+	public MongoOptions getObject() throws Exception {
+		return MONGO_OPTIONS;
+	}
+
+	public Class<?> getObjectType() {
+		return MongoOptions.class;
+	}
+
+	public boolean isSingleton() {
+		return true;
+	}
+
+}