001/*
002 * (C) Copyright 2006-2015 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 *     Thierry Delprat
018 */
019package org.nuxeo.ecm.platform.audit.service.extension;
020
021import org.apache.commons.lang3.StringUtils;
022import org.nuxeo.common.xmap.annotation.XNode;
023import org.nuxeo.common.xmap.annotation.XObject;
024import org.nuxeo.ecm.platform.audit.service.AuditBackend;
025import org.nuxeo.ecm.platform.audit.service.DefaultAuditBackend;
026import org.nuxeo.ecm.platform.audit.service.NXAuditEventsService;
027import org.nuxeo.runtime.api.Framework;
028import org.nuxeo.runtime.model.DefaultComponent;
029
030/**
031 * Descriptor to configure / contribute a Backend for Audit service
032 *
033 * @author tiry
034 */
035@XObject("backend")
036public class AuditBackendDescriptor {
037
038    @XNode("@class")
039    protected Class<? extends AuditBackend> klass = DefaultAuditBackend.class;
040
041    @XNode("require")
042    String requiredComponent;
043
044    public int getApplicationStartedOrder() {
045        if (StringUtils.isEmpty(requiredComponent)) {
046            return 1000;
047        }
048        return ((DefaultComponent)Framework.getRuntime().getComponent(requiredComponent)).getApplicationStartedOrder()+1;
049    }
050
051    public Class<? extends AuditBackend> getKlass() {
052        return klass;
053    }
054
055    public AuditBackend newInstance(NXAuditEventsService component) {
056        try {
057            return klass.getDeclaredConstructor(NXAuditEventsService.class, AuditBackendDescriptor.class).newInstance(component, this);
058        } catch (ReflectiveOperationException cause) {
059            throw new RuntimeException("Cannot create audit backend of type " + klass.getName(), cause);
060        }
061    }
062
063}