org.eclipse.sisu.space.AbstractDeferredClass Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2010-present Sonatype, Inc.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Stuart McCulloch (Sonatype, Inc.) - initial API and implementation
*******************************************************************************/
package org.eclipse.sisu.space;
import javax.inject.Inject;
import org.eclipse.sisu.inject.DeferredClass;
import org.eclipse.sisu.inject.DeferredProvider;
import org.eclipse.sisu.inject.Logs;
import com.google.inject.Injector;
/**
* Abstract combination of {@link DeferredClass} and {@link DeferredProvider}.
*/
abstract class AbstractDeferredClass
implements DeferredClass, DeferredProvider
{
// ----------------------------------------------------------------------
// Implementation fields
// ----------------------------------------------------------------------
@Inject
private Injector injector;
// ----------------------------------------------------------------------
// Public methods
// ----------------------------------------------------------------------
public final DeferredProvider asProvider()
{
return this;
}
public final T get()
{
try
{
// load class and bootstrap injection
return injector.getInstance( load() );
}
catch ( final Throwable e ) // NOPMD see Logs.catchThrowable
{
Logs.catchThrowable( e );
try
{
Logs.warn( "Error injecting: {}", getName(), e );
}
finally
{
Logs.throwUnchecked( e );
}
}
return null; // not used
}
public final DeferredClass getImplementationClass()
{
return this;
}
}