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package com.sun.jersey.server.impl.resource;
import com.sun.jersey.api.container.ContainerException;
import com.sun.jersey.api.container.MappableContainerException;
import com.sun.jersey.api.core.HttpContext;
import com.sun.jersey.api.model.AbstractResource;
import com.sun.jersey.core.spi.component.ioc.IoCComponentProvider;
import com.sun.jersey.core.spi.component.ioc.IoCInstantiatedComponentProvider;
import com.sun.jersey.core.spi.component.ioc.IoCProxiedComponentProvider;
import com.sun.jersey.server.impl.inject.ServerInjectableProviderContext;
import com.sun.jersey.server.spi.component.ResourceComponentConstructor;
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 com.sun.jersey.core.spi.component.ComponentScope;
import com.sun.jersey.core.spi.component.ioc.IoCDestroyable;
import com.sun.jersey.server.spi.component.ResourceComponentDestructor;
import java.lang.reflect.InvocationTargetException;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.WebApplicationException;
import javax.ws.rs.core.Context;
/**
*
* @author [email protected]
*/
public final class PerRequestFactory implements ResourceComponentProviderFactory {
private static final Logger LOGGER = Logger.getLogger(PerRequestFactory.class.getName());
private final ServerInjectableProviderContext sipc;
private final HttpContext threadLocalHc;
public static void destroy(HttpContext hc) {
Map m = (Map)hc.getProperties().
get(SCOPE_PER_REQUEST);
if (m != null) {
for (Map.Entry e : m.entrySet()) {
try {
e.getKey().destroy(e.getValue());
} catch (ContainerException ex) {
LOGGER.log(Level.SEVERE, "Unable to destroy resource", ex);
}
}
}
}
public PerRequestFactory(
@Context ServerInjectableProviderContext sipc,
@Context HttpContext threadLocalHc) {
this.sipc = sipc;
this.threadLocalHc = threadLocalHc;
}
public ComponentScope getScope(Class c) {
return ComponentScope.PerRequest;
}
public ResourceComponentProvider getComponentProvider(Class c) {
return new PerRequest();
}
public ResourceComponentProvider getComponentProvider(IoCComponentProvider icp, Class c) {
if (icp instanceof IoCInstantiatedComponentProvider) {
return new PerRequestInstantiated((IoCInstantiatedComponentProvider)icp);
} else if (icp instanceof IoCProxiedComponentProvider) {
return new PerRequestProxied((IoCProxiedComponentProvider)icp);
}
throw new IllegalStateException();
}
private static final String SCOPE_PER_REQUEST = "com.sun.jersey.scope.PerRequest";
private abstract class AbstractPerRequest implements ResourceComponentProvider {
private ResourceComponentDestructor rcd;
public final Object getInstance() {
return getInstance(threadLocalHc);
}
public final ComponentScope getScope() {
return ComponentScope.PerRequest;
}
public void init(AbstractResource abstractResource) {
rcd = new ResourceComponentDestructor(abstractResource);
}
public final Object getInstance(HttpContext hc) {
Map m = (Map)hc.getProperties().
get(SCOPE_PER_REQUEST);
if (m == null) {
m = new HashMap();
hc.getProperties().put(SCOPE_PER_REQUEST, m);
} else {
Object o = m.get(this);
if (o != null) return o;
}
Object o = _getInstance(hc);
m.put(this, o);
return o;
}
public final void destroy() {
}
protected abstract Object _getInstance(HttpContext hc);
public void destroy(Object o) {
try {
rcd.destroy(o);
} catch (IllegalAccessException ex) {
throw new ContainerException("Unable to destroy resource", ex);
} catch (InvocationTargetException ex) {
throw new ContainerException("Unable to destroy resource", ex);
} catch (RuntimeException ex) {
throw new ContainerException("Unable to destroy resource", ex);
}
}
}
private final class PerRequest extends AbstractPerRequest {
private ResourceComponentConstructor rcc;
@Override
public void init(AbstractResource abstractResource) {
super.init(abstractResource);
this.rcc = new ResourceComponentConstructor(
sipc,
ComponentScope.PerRequest,
abstractResource);
}
protected Object _getInstance(HttpContext hc) {
try {
return rcc.construct(hc);
} catch (InstantiationException ex) {
throw new ContainerException("Unable to create resource " + rcc.getResourceClass(), ex);
} catch (IllegalAccessException ex) {
throw new ContainerException("Unable to create resource " + rcc.getResourceClass(), ex);
} catch (InvocationTargetException ex) {
// Propagate the target exception so it may be mapped to a response
throw new MappableContainerException(ex.getTargetException());
} catch (WebApplicationException ex) {
throw ex;
} catch (RuntimeException ex) {
throw new ContainerException("Unable to create resource " + rcc.getResourceClass(), ex);
}
}
}
private final class PerRequestInstantiated extends AbstractPerRequest {
private final IoCInstantiatedComponentProvider iicp;
private final IoCDestroyable destroyable;
private ResourceComponentInjector rci;
PerRequestInstantiated(IoCInstantiatedComponentProvider iicp) {
this.iicp = iicp;
this.destroyable = (iicp instanceof IoCDestroyable)
? (IoCDestroyable) iicp : null;
}
@Override
public void init(AbstractResource abstractResource) {
super.init(abstractResource);
if (destroyable == null) {
this.rci = new ResourceComponentInjector(
sipc,
ComponentScope.PerRequest,
abstractResource);
}
}
public Object _getInstance(HttpContext hc) {
Object o = iicp.getInstance();
if (destroyable == null) {
rci.inject(hc, iicp.getInjectableInstance(o));
}
return o;
}
@Override
public void destroy(Object o) {
if (destroyable != null) {
destroyable.destroy(o);
} else {
super.destroy(o);
}
}
}
private final class PerRequestProxied extends AbstractPerRequest {
private final IoCProxiedComponentProvider ipcp;
private ResourceComponentConstructor rcc;
PerRequestProxied(IoCProxiedComponentProvider ipcp) {
this.ipcp = ipcp;
}
@Override
public void init(AbstractResource abstractResource) {
super.init(abstractResource);
this.rcc = new ResourceComponentConstructor(
sipc,
ComponentScope.PerRequest,
abstractResource);
}
public Object _getInstance(HttpContext hc) {
try {
return ipcp.proxy(rcc.construct(hc));
} catch (InstantiationException ex) {
throw new ContainerException("Unable to create resource", ex);
} catch (IllegalAccessException ex) {
throw new ContainerException("Unable to create resource", ex);
} catch (InvocationTargetException ex) {
// Propagate the target exception so it may be mapped to a response
throw new MappableContainerException(ex.getTargetException());
} catch (WebApplicationException ex) {
throw ex;
} catch (RuntimeException ex) {
throw new ContainerException("Unable to create resource", ex);
}
}
}
}
