/*
* Sonatype Nexus (TM) Open Source Version
* Copyright (c) 2007-2014 Sonatype, Inc.
* All rights reserved. Includes the third-party code listed at http://links.sonatype.com/products/nexus/oss/attributions.
*
* This program and the accompanying materials are made available under the terms of the Eclipse Public License Version 1.0,
* which accompanies this distribution and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Sonatype Nexus (TM) Professional Version is available from Sonatype, Inc. "Sonatype" and "Sonatype Nexus" are trademarks
* of Sonatype, Inc. Apache Maven is a trademark of the Apache Software Foundation. M2eclipse is a trademark of the
* Eclipse Foundation. All other trademarks are the property of their respective owners.
*/
package org.sonatype.nexus.rest.component;
import javax.inject.Inject;
import javax.inject.Named;
import org.sonatype.nexus.rest.AbstractNexusPlexusResource;
import org.sonatype.nexus.rest.model.PlexusComponentListResource;
import org.sonatype.nexus.rest.model.PlexusComponentListResourceResponse;
import com.google.inject.Key;
import org.apache.commons.lang.StringUtils;
import org.eclipse.sisu.BeanEntry;
import org.eclipse.sisu.inject.BeanLocator;
import org.restlet.Context;
import org.restlet.data.Request;
import org.restlet.data.Response;
import org.restlet.data.Status;
import org.restlet.resource.ResourceException;
import org.restlet.resource.Variant;
public abstract class AbstractComponentListPlexusResource
extends AbstractNexusPlexusResource
{
public static final String ROLE_ID = "role";
private BeanLocator beanLocator;
private ClassLoader uberClassLoader;
@Inject
public void setContainer(BeanLocator beanLocator, @Named("nexus-uber") ClassLoader uberClassLoader) {
this.beanLocator = beanLocator;
this.uberClassLoader = uberClassLoader;
}
@Override
public Object getPayloadInstance() {
return null;
}
protected String getRole(Request request) {
return request.getAttributes().get(ROLE_ID).toString();
}
@Override
public PlexusComponentListResourceResponse get(Context context, Request request, Response response, Variant variant) throws ResourceException {
PlexusComponentListResourceResponse result = new PlexusComponentListResourceResponse();
// get role from request
String role = getRole(request);
try {
Key<?> roleKey = Key.get(uberClassLoader.loadClass(role), Named.class);
Iterable<? extends BeanEntry<Named, ?>> components = beanLocator.locate(roleKey);
if (!components.iterator().hasNext()) {
throw new ResourceException(Status.CLIENT_ERROR_NOT_FOUND);
}
for (BeanEntry<Named, ?> entry : components) {
PlexusComponentListResource resource = new PlexusComponentListResource();
String hint = entry.getKey().value();
String description = entry.getDescription();
resource.setRoleHint(hint);
resource.setDescription(StringUtils.isNotEmpty(description) ? description : hint);
// add it to the collection
result.addData(resource);
}
}
catch (ClassNotFoundException | LinkageError e) {
if (this.getLogger().isDebugEnabled()) {
getLogger().debug("Unable to look up plexus component with role '" + role + "'.", e);
}
throw new ResourceException(Status.CLIENT_ERROR_NOT_FOUND);
}
return result;
}
}