diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/injection/ListMultiplicityObjectFactory.java')
-rw-r--r-- | sca-java-2.x/tags/2.0.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/injection/ListMultiplicityObjectFactory.java | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/injection/ListMultiplicityObjectFactory.java b/sca-java-2.x/tags/2.0.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/injection/ListMultiplicityObjectFactory.java new file mode 100644 index 0000000000..a0af933c71 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1/modules/implementation-java-runtime/src/main/java/org/apache/tuscany/sca/implementation/java/injection/ListMultiplicityObjectFactory.java @@ -0,0 +1,66 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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.apache.tuscany.sca.implementation.java.injection; + +import java.util.ArrayList; +import java.util.Collection; +import java.util.HashSet; +import java.util.List; +import java.util.Set; +import java.util.SortedSet; +import java.util.TreeSet; + +import org.apache.tuscany.sca.core.factory.ObjectCreationException; +import org.apache.tuscany.sca.core.factory.ObjectFactory; + +/** + * Resolves targets configured in a multiplicity by delegating to object factories and returning an <code>List</code> + * containing object instances + * + * @version $Rev$ $Date$ + */ +public class ListMultiplicityObjectFactory implements ObjectFactory<Collection<?>> { + + private Collection<ObjectFactory<?>> factories; + private Class<?> collectionType; + + public ListMultiplicityObjectFactory(List<ObjectFactory<?>> factories, Class<?> collectionType) { + assert factories != null : "Object factories were null"; + this.factories = factories; + this.collectionType = collectionType; + } + + public Collection<?> getInstance() throws ObjectCreationException { + Collection<Object> collection = null; + if (SortedSet.class.isAssignableFrom(collectionType)) { + collection = new TreeSet<Object>(); + } else if (Set.class.isAssignableFrom(collectionType)) { + collection = new HashSet<Object>(); + } else if (List.class.isAssignableFrom(collectionType)) { + collection = new ArrayList<Object>(); + } else { + collection = new ArrayList<Object>(); + } + for (ObjectFactory<?> factory : factories) { + collection.add(factory.getInstance()); + } + return collection; + } + +} |