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[utils] / system / spring / src / main / java / org / wamblee / system / spring / component / DatasourceComponent.java

diff --git a/system/spring/src/main/java/org/wamblee/system/spring/component/DatasourceComponent.java b/system/spring/src/main/java/org/wamblee/system/spring/component/DatasourceComponent.java
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+/*
+ * Copyright 2008 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.wamblee.system.spring.component;
+
+import java.io.IOException;
+import java.util.Map;
+import java.util.Properties;
+import java.util.TreeMap;
+
+import javax.sql.DataSource;
+
+import org.springframework.core.io.ClassPathResource;
+import org.springframework.jdbc.datasource.DriverManagerDataSource;
+import org.wamblee.system.components.ORMappingConfig;
+import org.wamblee.system.components.ORMappingConfig.DatabaseType;
+import org.wamblee.system.core.AbstractComponent;
+import org.wamblee.system.core.DefaultProvidedInterface;
+import org.wamblee.system.core.DefaultRequiredInterface;
+import org.wamblee.system.core.ProvidedInterface;
+import org.wamblee.system.core.RequiredInterface;
+import org.wamblee.system.core.Scope;
+import org.wamblee.system.spring.SpringComponent;
+
+public class DatasourceComponent extends AbstractComponent<DataSource> {
+
+    private static RequiredInterface PROPS = new DefaultRequiredInterface("dbprops", Properties.class);
+    private static ProvidedInterface DATASOURCE =  new DefaultProvidedInterface("datasource",
+            DataSource.class);
+    private static ProvidedInterface ORM_CONFIG = new DefaultProvidedInterface("ormconfig",
+            ORMappingConfig.class);
+   
+    public DatasourceComponent(String aName) throws IOException {
+        super(aName); 
+        
+        addRequiredInterface(PROPS);
+        addProvidedInterface(DATASOURCE);
+        addProvidedInterface(ORM_CONFIG);
+    }
+
+
+    @Override
+    protected DataSource doStart(Scope aScope) {
+        Properties dbProps = aScope.getInterfaceImplementation(
+                PROPS.getProvider(), Properties.class);
+        DriverManagerDataSource ds = new DriverManagerDataSource(
+                dbProps.getProperty("database.driver"),
+                dbProps.getProperty("database.url"), 
+                dbProps.getProperty("database.username"),
+                dbProps.getProperty("database.password"));
+       addInterface(DATASOURCE, ds, aScope);
+       DatabaseType type = DatabaseType.valueOf(dbProps.getProperty("database.type"));
+       
+       ORMappingConfig config = new ORMappingConfig(true, type);
+       
+       addInterface(ORM_CONFIG, config, aScope);
+       
+       return ds; 
+    }
+
+    @Override
+    protected void doStop(DataSource aRuntime) {
+       // Empty.
+    }
+}