001/*
002 * (C) Copyright 2006-2008 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 *     bstefanescu
018 *
019 * $Id$
020 */
021
022package org.nuxeo.ecm.webengine.security.guards;
023
024import java.util.Collection;
025
026import org.nuxeo.ecm.webengine.security.Guard;
027import org.nuxeo.runtime.model.Adaptable;
028
029/**
030 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a>
031 */
032public class And implements Guard {
033
034    protected Guard[] perms;
035
036    public And(Collection<Guard> guards) {
037        this(guards.toArray(new Guard[guards.size()]));
038    }
039
040    public And(Guard... perms) {
041        if (perms == null) {
042            throw new IllegalArgumentException("Argument cannot be null");
043        }
044        this.perms = perms;
045    }
046
047    @Override
048    public boolean check(Adaptable context) {
049        for (Guard perm : perms) {
050            if (!perm.check(context)) {
051                return false;
052            }
053        }
054        return true;
055    }
056
057    @Override
058    public String toString() {
059        StringBuilder buf = new StringBuilder();
060        if (perms == null) {
061            return "[AND]";
062        }
063        buf.append('(').append(perms[0]);
064        for (int i = 1; i < perms.length; i++) {
065            buf.append(" AND ").append(perms[i]);
066        }
067        return buf.append(')').toString();
068    }
069
070}