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package com.sun.jersey.server.impl.component;
import com.sun.jersey.api.core.HttpContext;
import com.sun.jersey.api.core.ResourceConfig;
import com.sun.jersey.api.model.AbstractResource;
import com.sun.jersey.core.spi.component.ComponentContext;
import com.sun.jersey.core.spi.component.ioc.IoCComponentProvider;
import com.sun.jersey.core.spi.component.ioc.IoCComponentProviderFactory;
import com.sun.jersey.core.spi.component.ioc.IoCManagedComponentProvider;
import com.sun.jersey.core.spi.component.ComponentScope;
import com.sun.jersey.core.spi.component.ioc.IoCFullyManagedComponentProvider;
import com.sun.jersey.core.util.PriorityUtil;
import com.sun.jersey.server.impl.inject.ServerInjectableProviderContext;
import com.sun.jersey.server.spi.component.ResourceComponentInjector;
import com.sun.jersey.server.spi.component.ResourceComponentProvider;
import com.sun.jersey.server.spi.component.ResourceComponentProviderFactory;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
/**
* Factory for individual JAX-RS resources.
*
* @author Paul Sandoz (paul.sandoz at oracle.com)
*/
public class IoCResourceFactory extends ResourceFactory {
private final List factories;
public IoCResourceFactory(
ResourceConfig config,
ServerInjectableProviderContext ipc,
List factories) {
super(config, ipc);
List myFactories = new ArrayList(factories);
Collections.sort(myFactories, PriorityUtil.INSTANCE_COMPARATOR);
this.factories = Collections.unmodifiableList(myFactories);
}
@Override
public ResourceComponentProvider getComponentProvider(ComponentContext cc, Class c) {
IoCComponentProvider icp = null;
for (IoCComponentProviderFactory f : factories) {
icp = f.getComponentProvider(cc, c);
if (icp != null)
break;
}
return (icp == null) ? super.getComponentProvider(cc, c) : wrap(c, icp);
}
private ResourceComponentProvider wrap(Class c, IoCComponentProvider icp) {
if (icp instanceof IoCManagedComponentProvider) {
IoCManagedComponentProvider imcp = (IoCManagedComponentProvider)icp;
if (imcp.getScope() == ComponentScope.PerRequest) {
return new PerRequestWrapper(getInjectableProviderContext(), imcp);
} else if (imcp.getScope() == ComponentScope.Singleton) {
return new SingletonWrapper(getInjectableProviderContext(), imcp);
} else {
return new UndefinedWrapper(getInjectableProviderContext(), imcp);
}
} else if (icp instanceof IoCFullyManagedComponentProvider) {
IoCFullyManagedComponentProvider ifmcp = (IoCFullyManagedComponentProvider)icp;
return new FullyManagedWrapper(ifmcp);
} else {
ResourceComponentProviderFactory rcpf = getComponentProviderFactory(c);
return rcpf.getComponentProvider(icp, c);
}
}
private static class FullyManagedWrapper implements ResourceComponentProvider {
private final IoCFullyManagedComponentProvider ifmcp;
FullyManagedWrapper(IoCFullyManagedComponentProvider ifmcp) {
this.ifmcp = ifmcp;
}
public void init(AbstractResource abstractResource) {
}
public ComponentScope getScope() {
return ifmcp.getScope();
}
public Object getInstance(HttpContext hc) {
return ifmcp.getInstance();
}
public Object getInstance() {
throw new IllegalStateException();
}
public void destroy() {
}
}
private static class PerRequestWrapper implements ResourceComponentProvider {
private final ServerInjectableProviderContext ipc;
private final IoCManagedComponentProvider imcp;
private ResourceComponentInjector rci;
PerRequestWrapper(ServerInjectableProviderContext ipc, IoCManagedComponentProvider imcp) {
this.ipc = ipc;
this.imcp = imcp;
}
public void init(AbstractResource abstractResource) {
rci = new ResourceComponentInjector(
ipc,
ComponentScope.PerRequest,
abstractResource);
}
public ComponentScope getScope() {
return ComponentScope.PerRequest;
}
public Object getInstance(HttpContext hc) {
Object o = imcp.getInstance();
rci.inject(hc, imcp.getInjectableInstance(o));
return o;
}
public Object getInstance() {
throw new IllegalStateException();
}
public void destroy() {
}
}
private static class SingletonWrapper implements ResourceComponentProvider {
private final ServerInjectableProviderContext ipc;
private final IoCManagedComponentProvider imcp;
private Object o;
SingletonWrapper(ServerInjectableProviderContext ipc, IoCManagedComponentProvider imcp) {
this.ipc = ipc;
this.imcp = imcp;
}
public void init(AbstractResource abstractResource) {
ResourceComponentInjector rci = new ResourceComponentInjector(
ipc,
ComponentScope.Singleton,
abstractResource);
o = imcp.getInstance();
rci.inject(null, imcp.getInjectableInstance(o));
}
public ComponentScope getScope() {
return ComponentScope.Singleton;
}
public Object getInstance(HttpContext hc) {
return o;
}
public Object getInstance() {
throw new IllegalStateException();
}
public void destroy() {
}
}
private static class UndefinedWrapper implements ResourceComponentProvider {
private final ServerInjectableProviderContext ipc;
private final IoCManagedComponentProvider imcp;
private ResourceComponentInjector rci;
UndefinedWrapper(ServerInjectableProviderContext ipc, IoCManagedComponentProvider imcp) {
this.ipc = ipc;
this.imcp = imcp;
}
public void init(AbstractResource abstractResource) {
rci = new ResourceComponentInjector(
ipc,
ComponentScope.Undefined,
abstractResource);
}
public ComponentScope getScope() {
return ComponentScope.Undefined;
}
public Object getInstance(HttpContext hc) {
Object o = imcp.getInstance();
rci.inject(hc, imcp.getInjectableInstance(o));
return o;
}
public Object getInstance() {
throw new IllegalStateException();
}
public void destroy() {
}
}
}
