001/*
002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     troger
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.core.api.impl;
023
024import java.util.ArrayList;
025import java.util.Arrays;
026import java.util.List;
027
028import org.nuxeo.ecm.core.api.DocumentModel;
029import org.nuxeo.ecm.core.api.Filter;
030
031/**
032 * A filter based on a list of others filters. To accept a document, all the registered filters must accept it.
033 *
034 * @author <a href="mailto:troger@nuxeo.com">Thomas Roger</a>
035 */
036public class CompoundFilter implements Filter {
037
038    private final List<Filter> filters;
039
040    /**
041     * Generic constructor.
042     */
043    public CompoundFilter(Filter... filters) {
044        this(Arrays.asList(filters));
045    }
046
047    /**
048     * Generic constructor.
049     */
050    public CompoundFilter(List<Filter> filters) {
051        if (filters == null) {
052            this.filters = new ArrayList<>();
053        } else {
054            this.filters = filters;
055        }
056    }
057
058    @Override
059    public boolean accept(DocumentModel docModel) {
060        for (Filter filter : filters) {
061            if (!filter.accept(docModel)) {
062                return false;
063            }
064        }
065        return true;
066    }
067
068}