/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.aries.blueprint.container;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.apache.aries.blueprint.di.ExecutionContext;
import org.apache.aries.blueprint.di.PassThroughRecipe;
import org.junit.Test;
import org.osgi.service.blueprint.container.ComponentDefinitionException;
import static org.junit.Assert.*;
public class BeanRecipeTest {
static class Base {
public static Object getObject() { return null; }
public static Object getOne(Object o) { return null; }
public static Object getMany(Object o, String n, String n2) { return null; }
}
static class Middle extends Base {
public static Number getObject() { return null; }
public static Number getOne(Number n) { return null; }
public static Number getOne(Object o) { return null; }
public static Object getMany(Object o, String n, Number i) { return null; }
public static Object getBasic(int n) { return 0; }
}
static class Top extends Middle {
public static Integer getObject() { return null; }
public static Integer getOne(Integer n) { return null; }
public static Object getMany(Object o, String n, Number i) { return null; }
public static Object getBasic(int n) { return 0; }
}
static class Unrelated {
public static String getObject() { return null; }
public static Object getBasic(int n) { return 1; }
}
static public interface Example<A> {}
static public class ExampleImpl implements Example<String> {}
static public class ExampleService {
public ExampleService(Example<String> e) {}
}
static public interface A {
String getA();
void setA(String a);
}
static public interface B extends A {
String getB();
void setB(String b);
void init();
}
static public class C implements B {
String a = "a", b = "b", c = "c";
public String getA() {
return a;
}
public void setA(String a) {
this.a = a;
}
public String getB() {
return b;
}
public void setB(String b) {
this.b = b;
}
public String getC() {
return c;
}
public void setC(String c) {
this.c = c;
}
public void init() {
}
}
static public class Factory {
public B create() {
return new D();
}
private class D extends C {
String d = "d";
public String getD() {
return d;
}
public void setD(String d) {
this.d = d;
}
public void init() {
}
}
}
@Test
public void parameterWithGenerics() throws Exception {
BlueprintContainerImpl container = new BlueprintContainerImpl(null, null, null, null, null, null, null, null, null);
BeanRecipe recipe = new BeanRecipe("example", container, ExampleService.class, false);
recipe.setArguments(Arrays.<Object>asList(new ExampleImpl()));
recipe.setArgTypes(Arrays.<String>asList((String) null));
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
recipe.create();
}
@Test
public void parameterLessHiding() throws Exception {
Set<Method> methods = new HashSet<Method>(
Arrays.asList(
Base.class.getMethod("getObject"),
Middle.class.getMethod("getObject"),
Top.class.getMethod("getObject"),
Unrelated.class.getMethod("getObject")
));
methods = applyStaticHidingRules(methods);
assertEquals(2, methods.size());
assertTrue(methods.contains(Top.class.getMethod("getObject")));
assertTrue(methods.contains(Unrelated.class.getMethod("getObject")));
assertFalse(methods.contains(Middle.class.getMethod("getObject")));
}
@Test
public void parameterDistinction() throws Exception {
Set<Method> methods = new HashSet<Method>(
Arrays.asList(
Base.class.getMethod("getOne", Object.class),
Middle.class.getMethod("getOne", Number.class),
Middle.class.getMethod("getOne", Object.class),
Top.class.getMethod("getOne", Integer.class)
));
methods = applyStaticHidingRules(methods);
assertEquals(3, methods.size());
assertFalse(methods.contains(Base.class.getMethod("getOne", Object.class)));
}
@Test
public void multiParameterTest() throws Exception {
Set<Method> methods = new HashSet<Method>(
Arrays.asList(
Base.class.getMethod("getMany", Object.class, String.class, String.class),
Middle.class.getMethod("getMany", Object.class, String.class, Number.class),
Top.class.getMethod("getMany", Object.class, String.class, Number.class)
));
methods = applyStaticHidingRules(methods);
assertEquals(2, methods.size());
assertFalse(methods.contains(Middle.class.getMethod("getMany", Object.class, String.class, Number.class)));
}
@Test
public void baseTypeHiding() throws Exception {
Set<Method> methods = new HashSet<Method>(
Arrays.asList(
Middle.class.getMethod("getBasic", int.class),
Top.class.getMethod("getBasic", int.class),
Unrelated.class.getMethod("getBasic", int.class)
));
methods = applyStaticHidingRules(methods);
assertEquals(2, methods.size());
assertFalse(methods.contains(Middle.class.getMethod("getBasic", int.class)));
}
@Test
public void protectedClassAccess() throws Exception {
BlueprintContainerImpl container = new BlueprintContainerImpl(null, null, null, null, null, null, null, null, null);
BeanRecipe recipe = new BeanRecipe("a", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory().create()));
recipe.setFactoryMethod("getA");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
assertNotNull(recipe.create());
recipe = new BeanRecipe("b", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory().create()));
recipe.setFactoryMethod("getB");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
assertNotNull(recipe.create());
recipe = new BeanRecipe("c", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory().create()));
recipe.setFactoryMethod("getC");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
assertNotNull(recipe.create());
recipe = new BeanRecipe("d", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory().create()));
recipe.setFactoryMethod("getD");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
try {
assertNotNull(recipe.create());
fail("Should have thrown an exception");
} catch (ComponentDefinitionException e) {
// ok
}
recipe = new BeanRecipe("a", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory()));
recipe.setFactoryMethod("create");
recipe.setProperty("a", "a");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
assertNotNull(recipe.create());
recipe = new BeanRecipe("b", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory()));
recipe.setFactoryMethod("create");
recipe.setProperty("b", "b");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
assertNotNull(recipe.create());
recipe = new BeanRecipe("c", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory()));
recipe.setFactoryMethod("create");
recipe.setProperty("c", "c");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
assertNotNull(recipe.create());
recipe = new BeanRecipe("d", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory()));
recipe.setFactoryMethod("create");
recipe.setProperty("d", "d");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
try {
assertNotNull(recipe.create());
fail("Should have thrown an exception");
} catch (ComponentDefinitionException e) {
// ok
}
recipe = new BeanRecipe("a", container, null, false);
recipe.setFactoryComponent(new PassThroughRecipe("factory", new Factory()));
recipe.setFactoryMethod("create");
recipe.setInitMethod("init");
ExecutionContext.Holder.setContext(new BlueprintRepository(container));
assertNotNull(recipe.create());
}
private Set<Method> applyStaticHidingRules(Collection<Method> methods) {
try {
Method m = BeanRecipe.class.getDeclaredMethod("applyStaticHidingRules", Collection.class);
m.setAccessible(true);
return new HashSet<Method>((List<Method>) m.invoke(null, methods));
} catch (Exception e) {
throw new RuntimeException(e);
}
}
}