noblepaul commented on a change in pull request #1124: SOLR-14151 :Schema components to be loadable from packages URL: https://github.com/apache/lucene-solr/pull/1124#discussion_r361817112
########## File path: solr/core/src/java/org/apache/solr/pkg/PackageAwareSolrClassLoader.java ########## @@ -0,0 +1,154 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.solr.pkg; + +import java.io.IOException; +import java.io.InputStream; +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.function.BiFunction; + +import org.apache.solr.core.PluginInfo; +import org.apache.solr.core.SolrClassLoader; +import org.apache.solr.core.SolrCore; +import org.apache.solr.core.SolrResourceLoader; +import org.apache.solr.util.plugin.SolrCoreAware; + +import static java.util.Collections.singletonMap; + +/** + * This class implements a SolrClassLoader that can identify the correct packages + * and load classes from that. This also listens to any changes to the relevant packages and + * invoke a callback if anything is modified + */ +public class PackageAwareSolrClassLoader implements SolrClassLoader { + final SolrCore core; + final SolrResourceLoader loader; + private Map<String, PackageAPI.PkgVersion> classNameVsPkg = new HashMap<>(); + + private final List<PackageListeners.Listener> listeners = new ArrayList<>(); + private final Runnable reloadRunnable; + + + public PackageAwareSolrClassLoader(SolrCore core, SolrResourceLoader loader, Runnable runnable) { Review comment: It's to reload your set of plugins. In the case of schema it's a `refreshSchema()` , If you wish to reload core or something else , you could do it here ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org For additional commands, e-mail: issues-h...@lucene.apache.org
