/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.uberfire.client.exporter;
import java.lang.annotation.Annotation;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import javax.inject.Singleton;
import org.jboss.errai.ioc.client.QualifierUtil;
import org.jboss.errai.ioc.client.container.SyncBeanDef;
public class SingletonBeanDef<T, B extends T>
implements
SyncBeanDef<T> {
private final B instance;
private final Class<T> type;
private final Set<Annotation> qualifiers;
private final String name;
private final boolean activated;
private final Set<Class<?>> assignableTypes = new HashSet<>();
public SingletonBeanDef(final B instance,
final Class<T> type,
final Set<Annotation> qualifiers,
final String name,
final boolean activated,
final Class<?>... otherAssignableTypes) {
this.instance = instance;
this.type = type;
this.qualifiers = qualifiers;
this.name = name;
this.activated = activated;
assignableTypes.add(type);
assignableTypes.addAll(Arrays.asList(otherAssignableTypes));
}
@Override
public Class<T> getType() {
return type;
}
@Override
public Class<?> getBeanClass() {
return instance.getClass();
}
@Override
public Class<? extends Annotation> getScope() {
return Singleton.class;
}
@Override
public T getInstance() {
return instance;
}
@Override
public T newInstance() {
throw new UnsupportedOperationException();
}
@Override
public Set<Annotation> getQualifiers() {
if (qualifiers == null) {
return Collections.emptySet();
} else {
return qualifiers;
}
}
@Override
public boolean matches(final Set<Annotation> annotations) {
return QualifierUtil.matches(annotations,
getQualifiers());
}
@Override
public String getName() {
return name;
}
@Override
public boolean isActivated() {
return activated;
}
@Override
public boolean isAssignableTo(final Class<?> type) {
return assignableTypes.contains(type);
}
}