/*
* JBoss, Home of Professional Open Source
* Copyright 2011, Red Hat, Inc. and/or its affiliates, and individual
* contributors by the @authors tag. See the copyright.txt in the
* distribution for a full listing of individual contributors.
*
* 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.jboss.solder.bean;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;
import javax.enterprise.context.Dependent;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.Default;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.InjectionPoint;
import org.jboss.solder.literal.Literals;
import org.jboss.solder.logging.Logger;
//import org.jboss.solder.literal.DefaultLiteral;
import org.jboss.solder.util.collections.Arrays2;
/**
* <p>
* A base class for implementing {@link Bean}. The attributes are immutable, and
* collections are defensively copied on instantiation. It uses the defaults
* from the specification for properties if not specified.
* </p>
* <p/>
* <p>
* This class does not provide any bean lifecycle operations
* </p>
*
* @author Pete Muir
* @see ImmutableBean
* @see ImmutableNarrowingBean
*/
public abstract class AbstractImmutableBean<T> implements Bean<T> {
private transient Logger log = Logger.getLogger(AbstractImmutableBean.class);
private final Class<?> beanClass;
private final String name;
private final Set<Annotation> qualifiers;
private final Class<? extends Annotation> scope;
private final Set<Class<? extends Annotation>> stereotypes;
private final Set<Type> types;
private final boolean alternative;
private final boolean nullable;
private final Set<InjectionPoint> injectionPoints;
private final String toString;
/**
* Create a new, immutable bean. All arguments passed as collections are
* defensively copied.
*
* @param beanClass The Bean class, may not be null
* @param name The bean name
* @param qualifiers The bean's qualifiers, if null, a singleton set of
* {@link Default} is used
* @param scope The bean's scope, if null, the default scope of
* {@link Dependent} is used
* @param stereotypes The bean's stereotypes, if null, an empty set is used
* @param types The bean's types, if null, the beanClass and {@link Object}
* will be used
* @param alternative True if the bean is an alternative
* @param nullable True if the bean is nullable
* @param injectionPoints the bean's injection points, if null an empty set
* is used
* @param beanLifecycle Handler for {@link #create(CreationalContext)} and
* {@link #destroy(Object, CreationalContext)}
* @throws IllegalArgumentException if the beanClass is null
*/
public AbstractImmutableBean(Class<?> beanClass, String name, Set<Annotation> qualifiers, Class<? extends Annotation> scope, Set<Class<? extends Annotation>> stereotypes, Set<Type> types, boolean alternative, boolean nullable, Set<InjectionPoint> injectionPoints, String toString) {
if (beanClass == null) {
throw new IllegalArgumentException("beanClass cannot be null");
}
this.beanClass = beanClass;
this.name = name;
if (qualifiers == null) {
this.qualifiers = Collections.<Annotation>singleton(Literals.DEFAULT_LITERAL);
log.trace("No qualifers provided for bean class " + beanClass + ", using singleton set of @Default");
} else {
this.qualifiers = new HashSet<Annotation>(qualifiers);
}
if (scope == null) {
this.scope = Dependent.class;
log.trace("No scope provided for bean class " + beanClass + ", using @Dependent");
} else {
this.scope = scope;
}
if (stereotypes == null) {
this.stereotypes = Collections.emptySet();
} else {
this.stereotypes = new HashSet<Class<? extends Annotation>>(stereotypes);
}
if (types == null) {
this.types = Arrays2.<Type>asSet(Object.class, beanClass);
log.trace("No types provided for bean class " + beanClass + ", using [java.lang.Object.class, " + beanClass.getName() + ".class]");
} else {
this.types = new HashSet<Type>(types);
}
if (injectionPoints == null) {
this.injectionPoints = Collections.emptySet();
} else {
this.injectionPoints = new HashSet<InjectionPoint>(injectionPoints);
}
this.alternative = alternative;
this.nullable = nullable;
if (toString != null) {
this.toString = toString;
} else {
this.toString = "Custom Bean with bean class " + beanClass + " and qualifiers " + qualifiers;
}
}
public Class<?> getBeanClass() {
return beanClass;
}
public Set<InjectionPoint> getInjectionPoints() {
return injectionPoints;
}
public String getName() {
return name;
}
public Set<Annotation> getQualifiers() {
return Collections.unmodifiableSet(qualifiers);
}
public Class<? extends Annotation> getScope() {
return scope;
}
public Set<Class<? extends Annotation>> getStereotypes() {
return Collections.unmodifiableSet(stereotypes);
}
public Set<Type> getTypes() {
return Collections.unmodifiableSet(types);
}
public boolean isAlternative() {
return alternative;
}
public boolean isNullable() {
return nullable;
}
@Override
public String toString() {
return toString;
}
}