Groovy-based bean definitions

Formerly known as the Grails BeanBuilder, now in Spring proper. Based on https://github.com/spring-projects/spring-framework/pull/355 but heavily refactored and restructured.

Issue: SPR-7123

spring-context/src/test/groovy/org/springframework/context/groovy/GroovyApplicationContextDynamicBeanPropertyTests.groovy

@@ -0,0 +1,49 @@
+/*
+ * Copyright 2002-2013 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.context.groovy
+
+import org.springframework.beans.factory.NoSuchBeanDefinitionException
+import org.springframework.context.support.GenericGroovyApplicationContext
+
+/**
+ * @author Jeff Brown
+ */
+class GroovyApplicationContextDynamicBeanPropertyTests extends GroovyTestCase {
+    
+    void testAccessDynamicBeanProperties() {
+        def ctx = new GenericGroovyApplicationContext();
+		ctx.reader.loadBeanDefinitions("org/springframework/context/groovy/applicationContext.groovy");
+		ctx.refresh()
+
+        def framework = ctx.framework
+        assertNotNull 'could not find framework bean', framework
+        assertEquals 'Grails', framework
+    }
+    
+    void testAccessingNonExistentBeanViaDynamicProperty() {
+		def ctx = new GenericGroovyApplicationContext();
+		ctx.reader.loadBeanDefinitions("org/springframework/context/groovy/applicationContext.groovy");
+		ctx.refresh()
+
+        def err = shouldFail(NoSuchBeanDefinitionException) {
+            ctx.someNonExistentBean
+        }
+        
+        assertEquals "No bean named 'someNonExistentBean' is defined", err
+    }
+
+}

spring-context/src/test/java/org/springframework/context/groovy/GroovyApplicationContextTests.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2002-2013 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.context.groovy;
+
+import junit.framework.TestCase;
+
+import org.springframework.context.support.GenericGroovyApplicationContext;
+
+/**
+ * @author Jeff Brown
+ * @author Juergen Hoeller
+ */
+public class GroovyApplicationContextTests extends TestCase {
+
+	public void testLoadingConfigFile() {
+		GenericGroovyApplicationContext ctx = new GenericGroovyApplicationContext(
+				"org/springframework/context/groovy/applicationContext.groovy");
+
+		Object framework = ctx.getBean("framework");
+		assertNotNull("could not find framework bean", framework);
+		assertEquals("Grails", framework);
+	}
+
+    public void testLoadingMultipleConfigFiles() {
+		GenericGroovyApplicationContext ctx = new GenericGroovyApplicationContext(
+				"org/springframework/context/groovy/applicationContext2.groovy",
+				"org/springframework/context/groovy/applicationContext.groovy");
+
+        Object framework = ctx.getBean("framework");
+        assertNotNull("could not find framework bean", framework);
+        assertEquals("Grails", framework);
+
+        Object company = ctx.getBean("company");
+        assertNotNull("could not find company bean", company);
+        assertEquals("SpringSource", company);
+    }
+
+    public void testLoadingMultipleConfigFilesWithRelativeClass() {
+		GenericGroovyApplicationContext ctx = new GenericGroovyApplicationContext();
+		ctx.load(GroovyApplicationContextTests.class, "applicationContext2.groovy", "applicationContext.groovy");
+		ctx.refresh();
+
+        Object framework = ctx.getBean("framework");
+        assertNotNull("could not find framework bean", framework);
+        assertEquals("Grails", framework);
+
+        Object company = ctx.getBean("company");
+        assertNotNull("could not find company bean", company);
+        assertEquals("SpringSource", company);
+    }
+
+}

spring-context/src/test/java/org/springframework/context/groovy/applicationContext.groovy

@@ -0,0 +1,6 @@
+package org.springframework.context.groovy
+
+beans {
+	framework String, 'Grails'
+	foo String, 'hello'
+}

spring-context/src/test/java/org/springframework/context/groovy/applicationContext2.groovy

@@ -0,0 +1,5 @@
+package org.springframework.context.groovy
+
+beans {
+	company String, 'SpringSource'
+}

spring-context/src/test/java/org/springframework/context/groovy/test.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd">
+
+	<bean id="foo" class="java.lang.String">
+		<constructor-arg value="hello"/>
+	</bean>
+
+</beans>