001/*
002 * (C) Copyright 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 *     Anahide Tchertchian
018 */
019package org.nuxeo.ecm.web.resources.core.service;
020
021import java.util.ArrayList;
022import java.util.Collection;
023import java.util.Collections;
024import java.util.HashMap;
025import java.util.List;
026import java.util.Map;
027
028import org.apache.commons.logging.Log;
029import org.apache.commons.logging.LogFactory;
030import org.nuxeo.ecm.web.resources.api.Processor;
031import org.nuxeo.ecm.web.resources.core.ProcessorDescriptor;
032import org.nuxeo.runtime.model.ContributionFragmentRegistry;
033
034/**
035 * Registry for processors registry.
036 *
037 * @since 7.3
038 */
039public class ProcessorRegistry extends ContributionFragmentRegistry<ProcessorDescriptor> {
040
041    private static final Log log = LogFactory.getLog(ProcessorRegistry.class);
042
043    protected final Map<String, ProcessorDescriptor> processors = new HashMap<String, ProcessorDescriptor>();
044
045    @Override
046    public String getContributionId(ProcessorDescriptor contrib) {
047        return contrib.getName();
048    }
049
050    @Override
051    public void contributionUpdated(String id, ProcessorDescriptor contrib, ProcessorDescriptor newOrigContrib) {
052        if (processors.containsKey(id)) {
053            processors.remove(id);
054        }
055        if (contrib.isEnabled()) {
056            processors.put(id, contrib);
057            log.info("Registering processor with name " + id);
058        }
059    }
060
061    @Override
062    public void contributionRemoved(String id, ProcessorDescriptor origContrib) {
063        processors.remove(id);
064        log.info("Unregistering processor with name " + id);
065    }
066
067    @Override
068    public ProcessorDescriptor clone(ProcessorDescriptor orig) {
069        return orig.clone();
070    }
071
072    @Override
073    public void merge(ProcessorDescriptor src, ProcessorDescriptor dst) {
074        dst.merge(src);
075    }
076
077    // custom API
078
079    public Processor getProcessor(String id) {
080        return processors.get(id);
081    }
082
083    public List<Processor> getProcessors() {
084        return getProcessors(null);
085    }
086
087    public List<Processor> getProcessors(String type) {
088        List<Processor> res = new ArrayList<>();
089        Collection<ProcessorDescriptor> all = processors.values();
090        for (Processor proc : all) {
091            if (type == null || proc.getTypes().contains(type)) {
092                res.add(proc);
093            }
094        }
095        Collections.sort(res);
096        return res;
097    }
098
099}