// Copyright 2006, 2007 The Apache Software Foundation
//
// 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.apache.tapestry.ioc.internal;
import static org.apache.tapestry.ioc.internal.AbstractServiceCreator.findParameterizedTypeFromGenericType;
import static org.easymock.EasyMock.eq;
import static org.easymock.EasyMock.isA;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.util.Collection;
import java.util.List;
import org.apache.tapestry.ioc.AnnotationProvider;
import org.apache.tapestry.ioc.ObjectCreator;
import org.apache.tapestry.ioc.ServiceBuilderResources;
import org.slf4j.Logger;
import org.testng.Assert;
import org.testng.annotations.Test;
public class ServiceBuilderMethodInvokerTest extends IOCInternalTestCase
{
private static final String SERVICE_ID = "Fie";
private static final String CREATOR_DESCRIPTION = "{CREATOR DESCRIPTION}";
@Test
public void noargs_method()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
fixture._fie = mockFieService();
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
train_isDebugEnabled(logger, false);
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION,
findMethod(fixture, "build_noargs"));
Object actual = sc.createObject();
assertSame(actual, fixture._fie);
verify();
}
private void trainForConstructor(ServiceBuilderResources resources, Logger logger)
{
train_getServiceId(resources, SERVICE_ID);
train_getLogger(resources, logger);
train_getServiceInterface(resources, FieService.class);
}
@Test
public void method_with_args()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
Method method = findMethod(fixture, "build_args");
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
fixture._expectedServiceId = SERVICE_ID;
fixture._expectedServiceInterface = FieService.class;
fixture._expectedServiceResources = resources;
fixture._expectedLogger = logger;
fixture._fie = mockFieService();
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
train_isDebugEnabled(logger, true);
logger.debug(IOCMessages.invokingMethod(CREATOR_DESCRIPTION));
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION, method);
Object actual = sc.createObject();
assertSame(actual, fixture._fie);
verify();
}
@Test
public void inject_annotation_bypasses_resources()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
Method method = findMethod(fixture, "build_with_forced_injection");
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
fixture._expectedString = "Injected";
fixture._fie = mockFieService();
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
train_isDebugEnabled(logger, true);
logger.debug(IOCMessages.invokingMethod(CREATOR_DESCRIPTION));
// This simulates what the real stack does when it sees @Value("Injected")
expect(resources.getObject(eq(String.class), isA(AnnotationProvider.class))).andReturn(
"Injected");
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION, method);
Object actual = sc.createObject();
assertSame(actual, fixture._fie);
verify();
}
@Test
public void injected_service_method()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
fixture._fie = mockFieService();
fixture._expectedFoe = newFoe();
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
train_getService(resources, "Foe", FoeService.class, fixture._expectedFoe);
train_isDebugEnabled(logger, false);
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION,
findMethod(fixture, "build_injected"));
Object actual = sc.createObject();
assertSame(actual, fixture._fie);
verify();
}
@SuppressWarnings("unchecked")
@Test
public void injected_ordered_collection()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
fixture._fie = mockFieService();
List<Runnable> result = newMock(List.class);
fixture._expectedConfiguration = result;
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
expect(resources.getOrderedConfiguration(Runnable.class)).andReturn(result);
train_isDebugEnabled(logger, false);
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION,
findMethod(fixture, "buildWithOrderedConfiguration"));
Object actual = sc.createObject();
assertSame(actual, fixture._fie);
verify();
}
@SuppressWarnings("unchecked")
@Test
public void injected_unordered_collection()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
fixture._fie = mockFieService();
Collection<Runnable> result = newMock(Collection.class);
fixture._expectedConfiguration = result;
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
expect(resources.getUnorderedConfiguration(Runnable.class)).andReturn(result);
train_isDebugEnabled(logger, false);
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION,
findMethod(fixture, "buildWithUnorderedConfiguration"));
Object actual = sc.createObject();
assertSame(actual, fixture._fie);
verify();
}
private FoeService newFoe()
{
return mockFoeService();
}
@Test
public void builder_method_returns_null()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
Method method = findMethod(fixture, "build_noargs");
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
train_isDebugEnabled(logger, false);
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION, method);
try
{
sc.createObject();
unreachable();
}
catch (RuntimeException ex)
{
Assert.assertEquals(ex.getMessage(), "Builder method " + CREATOR_DESCRIPTION
+ " (for service 'Fie') returned null.");
}
verify();
}
@Test
public void builder_method_failed()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
Method method = findMethod(fixture, "build_fail");
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
train_isDebugEnabled(logger, false);
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION, method);
try
{
sc.createObject();
unreachable();
}
catch (RuntimeException ex)
{
assertEquals(ex.getMessage(), "Error invoking service builder method "
+ CREATOR_DESCRIPTION + " (for service 'Fie'): Method failed.");
Throwable cause = ex.getCause();
assertEquals(cause.getMessage(), "Method failed.");
}
verify();
}
@Test
public void auto_dependency()
{
ServiceBuilderMethodFixture fixture = new ServiceBuilderMethodFixture();
Method method = findMethod(fixture, "build_auto");
ServiceBuilderResources resources = mockServiceBuilderResources();
Logger logger = mockLogger();
fixture._fie = mockFieService();
fixture._expectedFoe = mockFoeService();
trainForConstructor(resources, logger);
train_getModuleBuilder(resources, fixture);
expect(resources.getObject(eq(FoeService.class), isA(AnnotationProvider.class))).andReturn(
fixture._expectedFoe);
train_isDebugEnabled(logger, false);
replay();
ObjectCreator sc = new ServiceBuilderMethodInvoker(resources, CREATOR_DESCRIPTION, method);
Object actual = sc.createObject();
verify();
assertSame(actual, fixture._fie);
}
protected final void train_getModuleBuilder(ServiceBuilderResources resources,
Object moduleBuilder)
{
expect(resources.getModuleBuilder()).andReturn(moduleBuilder);
}
@Test
public void parameterized_type_of_generic_parameter()
{
Method m = findMethod(ServiceBuilderMethodFixture.class, "methodWithParameterizedList");
assertEquals(m.getParameterTypes()[0], List.class);
Type type = m.getGenericParameterTypes()[0];
assertEquals(type.toString(), "java.util.List<java.lang.Runnable>");
assertEquals(findParameterizedTypeFromGenericType(type), Runnable.class);
}
@Test
public void parameterized_type_of_nongeneric_parameter()
{
Method m = findMethod(ServiceBuilderMethodFixture.class, "methodWithList");
assertEquals(m.getParameterTypes()[0], List.class);
Type type = m.getGenericParameterTypes()[0];
assertEquals(type.toString(), "interface java.util.List");
assertEquals(findParameterizedTypeFromGenericType(type), Object.class);
}
@Test
public void parameterize_type_for_non_supported_type()
{
Method m = findMethod(ServiceBuilderMethodFixture.class, "methodWithWildcardList");
assertEquals(m.getParameterTypes()[0], List.class);
Type type = m.getGenericParameterTypes()[0];
try
{
findParameterizedTypeFromGenericType(type);
unreachable();
}
catch (IllegalArgumentException ex)
{
assertEquals(ex.getMessage(), IOCMessages.genericTypeNotSupported(type));
}
}
private FoeService mockFoeService()
{
return newMock(FoeService.class);
}
private FieService mockFieService()
{
return newMock(FieService.class);
}
}