001/*-------------------------------------------------------------------------+
002|                                                                          |
003| Copyright 2005-2011 the ConQAT Project                                   |
004|                                                                          |
005| Licensed under the Apache License, Version 2.0 (the "License");          |
006| you may not use this file except in compliance with the License.         |
007| You may obtain a copy of the License at                                  |
008|                                                                          |
009|    http://www.apache.org/licenses/LICENSE-2.0                            |
010|                                                                          |
011| Unless required by applicable law or agreed to in writing, software      |
012| distributed under the License is distributed on an "AS IS" BASIS,        |
013| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
014| See the License for the specific language governing permissions and      |
015| limitations under the License.                                           |
016+-------------------------------------------------------------------------*/
017package org.conqat.lib.commons.serialization.utils;
018
019import java.io.IOException;
020import java.util.Collections;
021import java.util.List;
022
023import org.conqat.lib.commons.collections.CollectionUtils;
024import org.conqat.lib.commons.serialization.SerializedEntityPool;
025import org.conqat.lib.commons.serialization.classes.SerializedClass;
026import org.conqat.lib.commons.serialization.objects.SerializedObject;
027
028/**
029 * Utility methods for dealing with serialized entities.
030 */
031public class SerializedEntityUtils {
032
033        /** Returns all instances of the given class. */
034        public static List<SerializedObject> findInstancesOf(SerializedClass serializedClass,
035                        SerializedEntityPool entityPool) throws IOException {
036                if (serializedClass == null) {
037                        return Collections.emptyList();
038                }
039                return CollectionUtils.filter(entityPool.getEntities(SerializedObject.class),
040                                entity -> entity.getClassHandle() == serializedClass.getHandle());
041        }
042}