/* * 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.zeppelin.interpreter.remote; import java.util.HashMap; import java.util.LinkedList; import java.util.List; import java.util.Map; import org.apache.zeppelin.interpreter.InterpreterContextRunner; import org.apache.zeppelin.interpreter.InterpreterException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * */ public class InterpreterContextRunnerPool { Logger logger = LoggerFactory.getLogger(InterpreterContextRunnerPool.class); private Map<String, List<InterpreterContextRunner>> interpreterContextRunners; public InterpreterContextRunnerPool() { interpreterContextRunners = new HashMap<String, List<InterpreterContextRunner>>(); } // add runner public void add(String noteId, InterpreterContextRunner runner) { synchronized (interpreterContextRunners) { if (!interpreterContextRunners.containsKey(noteId)) { interpreterContextRunners.put(noteId, new LinkedList<InterpreterContextRunner>()); } interpreterContextRunners.get(noteId).add(runner); } } // replace all runners to noteId public void addAll(String noteId, List<InterpreterContextRunner> runners) { synchronized (interpreterContextRunners) { if (!interpreterContextRunners.containsKey(noteId)) { interpreterContextRunners.put(noteId, new LinkedList<InterpreterContextRunner>()); } interpreterContextRunners.get(noteId).addAll(runners); } } public void clear(String noteId) { synchronized (interpreterContextRunners) { interpreterContextRunners.remove(noteId); } } public void run(String noteId, String paragraphId) { synchronized (interpreterContextRunners) { List<InterpreterContextRunner> list = interpreterContextRunners.get(noteId); if (list != null) { for (InterpreterContextRunner r : list) { if (noteId.equals(r.getNoteId()) && paragraphId.equals(r.getParagraphId())) { logger.info("run paragraph {} on note {} from InterpreterContext", r.getParagraphId(), r.getNoteId()); r.run(); return; } } } throw new InterpreterException("Can not run paragraph " + paragraphId + " on " + noteId); } } }