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initial draft of transactional actors

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This commit is contained in:
Jonas Boner 2009-03-23 19:17:49 +01:00
parent a8700ddc93
commit 9d4b4ef5de
18 changed files with 127 additions and 368 deletions
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123
api-java/src/main/java/com/scalablesolutions/akka/api/ActiveObjectGuiceConfigurator.java
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@ -1,123 +0,0 @@
/**
* Copyright (C) 2009 Scalable Solutions.
*/
package com.scalablesolutions.akka.api;
import com.scalablesolutions.akka.kernel.configuration.*;
import com.google.inject.*;
import com.google.inject.jsr250.ResourceProviderFactory;
import com.scalablesolutions.akka.kernel.ActiveObjectFactory;
import com.scalablesolutions.akka.kernel.ActiveObjectProxy;
import java.util.List;
import java.util.ArrayList;
import java.util.Map;
import java.util.HashMap;
import com.scalablesolutions.akka.supervisor.Supervisor;
import com.scalablesolutions.akka.supervisor.Worker;
/**
* @author <a href="http://jonasboner.com">Jonas Bon&#233;r</a>
*/
public class ActiveObjectGuiceConfigurator {
private List<Module> modules = new ArrayList<Module>();
private Injector injector;
private Supervisor supervisor;
private RestartStrategy restartStrategy;
private Component[] components;
private Map<Class, Component> configRegistry = new HashMap<Class, Component>();
private Map<Class, ActiveObjectProxy> activeObjectRegistry = new HashMap<Class, ActiveObjectProxy>();
private ActiveObjectFactory activeObjectFactory = new ActiveObjectFactory();
public synchronized <T> T getExternalDependency(Class<T> clazz) {
return injector.getInstance(clazz);
}
/**
* Returns the active abject that has been put under supervision for the class specified.
*
* @param clazz the class for the active object
* @return the active object for the class
*/
public synchronized <T> T getActiveObject(Class<T> clazz) {
if (injector == null) throw new IllegalStateException("inject() and supervise() must be called before invoking newInstance(clazz)");
if (activeObjectRegistry.containsKey(clazz)) {
final ActiveObjectProxy activeObjectProxy = activeObjectRegistry.get(clazz);
activeObjectProxy.setTargetInstance(injector.getInstance(clazz));
return (T)activeObjectFactory.newInstance(clazz, activeObjectProxy);
} else throw new IllegalStateException("Class " + clazz.getName() + " has not been put under supervision (by passing in the config to the supervise() method");
}
public synchronized ActiveObjectGuiceConfigurator configureActiveObjects(final RestartStrategy restartStrategy, final Component[] components) {
this.restartStrategy = restartStrategy;
this.components = components;
modules.add(new AbstractModule() {
protected void configure() {
bind(ResourceProviderFactory.class);
for (int i = 0; i < components.length; i++) {
Component c = components[i];
bind((Class) c.intf()).to((Class) c.target()).in(Singleton.class);
}
}
});
return this;
}
public synchronized ActiveObjectGuiceConfigurator inject() {
if (injector != null) throw new IllegalStateException("inject() has already been called on this configurator");
injector = Guice.createInjector(modules);
return this;
}
public synchronized ActiveObjectGuiceConfigurator supervise() {
if (injector == null) inject();
injector = Guice.createInjector(modules);
List<Worker> workers = new ArrayList<Worker>();
for (int i = 0; i < components.length; i++) {
final Component c = components[i];
final ActiveObjectProxy activeObjectProxy = new ActiveObjectProxy(c.intf(), c.target(), c.timeout());
workers.add(c.newWorker(activeObjectProxy));
activeObjectRegistry.put(c.intf(), activeObjectProxy);
}
supervisor = activeObjectFactory.supervise(restartStrategy.transform(), workers);
return this;
}
/**
* Add additional services to be wired in.
* <pre>
* ActiveObjectGuiceConfigurator.addExternalGuiceModule(new AbstractModule {
* protected void configure() {
* bind(Foo.class).to(FooImpl.class).in(Scopes.SINGLETON);
* bind(BarImpl.class);
* link(Bar.class).to(BarImpl.class);
* bindConstant(named("port")).to(8080);
* }})
* </pre>
*/
public synchronized ActiveObjectGuiceConfigurator addExternalGuiceModule(Module module) {
modules.add(module);
return this;
}
public List<Module> getGuiceModules() {
return modules;
}
public synchronized void reset() {
modules = new ArrayList<Module>();
configRegistry = new HashMap<Class, Component>();
activeObjectRegistry = new HashMap<Class, ActiveObjectProxy>();
injector = null;
restartStrategy = null;
}
public synchronized void stop() {
// TODO: fix supervisor.stop();
}
}

169
api-java/src/test/java/com/scalablesolutions/akka/api/ActiveObjectGuiceConfiguratorTest.java
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@ -1,169 +0,0 @@
/**
* Copyright (C) 2009 Scalable Solutions.
*/
package com.scalablesolutions.akka.api;
import com.scalablesolutions.akka.annotation.oneway;
import com.scalablesolutions.akka.kernel.configuration.*;
import com.google.inject.Inject;
import com.google.inject.AbstractModule;
import com.google.inject.Scopes;
import junit.framework.TestCase;
public class ActiveObjectGuiceConfiguratorTest extends TestCase {
static String messageLog = "";
final private ActiveObjectGuiceConfigurator conf = new ActiveObjectGuiceConfigurator();
protected void setUp() {
conf.addExternalGuiceModule(new AbstractModule() {
protected void configure() {
bind(Ext.class).to(ExtImpl.class).in(Scopes.SINGLETON);
}
}).configureActiveObjects(
new RestartStrategy(new AllForOne(), 3, 100), new Component[]{
new Component(
Foo.class,
FooImpl.class,
new LifeCycle(new Permanent(), 100),
1000),
new Component(
Bar.class,
BarImpl.class,
new LifeCycle(new Permanent(), 100),
1000)
}).inject().supervise();
}
public void testGuiceActiveObjectInjection() {
messageLog = "";
Foo foo = conf.getActiveObject(Foo.class);
Bar bar = conf.getActiveObject(Bar.class);
assertTrue(foo.getBar().toString().equals(bar.toString()));
}
public void testGuiceExternalDependencyInjection() {
messageLog = "";
Bar bar = conf.getActiveObject(Bar.class);
Ext ext = conf.getExternalDependency(Ext.class);
assertTrue(bar.getExt().toString().equals(ext.toString()));
}
public void testActiveObjectInvocation() throws InterruptedException {
messageLog = "";
Foo foo = conf.getActiveObject(Foo.class);
messageLog += foo.foo("foo ");
foo.bar("bar ");
messageLog += "before_bar ";
Thread.sleep(500);
assertEquals("foo return_foo before_bar ", messageLog);
}
public void testActiveObjectInvocationsInvocation() throws InterruptedException {
messageLog = "";
Foo foo = conf.getActiveObject(Foo.class);
Bar bar = conf.getActiveObject(Bar.class);
messageLog += foo.foo("foo ");
foo.bar("bar ");
messageLog += "before_bar ";
Thread.sleep(500);
assertEquals("foo return_foo before_bar ", messageLog);
}
public void testForcedTimeout() {
messageLog = "";
Foo foo = conf.getActiveObject(Foo.class);
try {
foo.longRunning();
fail("exception should have been thrown");
} catch (com.scalablesolutions.akka.kernel.ActiveObjectInvocationTimeoutException e) {
}
}
public void testForcedException() {
messageLog = "";
Foo foo = conf.getActiveObject(Foo.class);
try {
foo.throwsException();
fail("exception should have been thrown");
} catch (RuntimeException e) {
}
}
}
// ============== TEST SERVICES ===============
interface Foo {
public String foo(String msg);
@oneway
public void bar(String msg);
public void longRunning();
public void throwsException();
public Bar getBar();
}
class FooImpl implements Foo {
@Inject
private Bar bar;
public Bar getBar() {
return bar;
}
public String foo(String msg) {
return msg + "return_foo ";
}
public void bar(String msg) {
bar.bar(msg);
}
public void longRunning() {
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
}
}
public void throwsException() {
throw new RuntimeException("expected");
}
}
interface Bar {
@oneway
void bar(String msg);
Ext getExt();
}
class BarImpl implements Bar {
@Inject
private Ext ext;
public Ext getExt() {
return ext;
}
public void bar(String msg) {
}
}
interface Ext {
void ext();
}
class ExtImpl implements Ext {
public void ext() {
}
}