/* * 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.notebook; import org.apache.zeppelin.helium.HeliumPackage; import org.apache.zeppelin.interpreter.InterpreterGroup; /** * Current state of application */ public class ApplicationState { /** * Status of Application */ public static enum Status { LOADING, LOADED, UNLOADING, UNLOADED, ERROR }; Status status = Status.UNLOADED; String id; // unique id for this instance. Similar to note id or paragraph id HeliumPackage pkg; String output; public ApplicationState(String id, HeliumPackage pkg) { this.id = id; this.pkg = pkg; } /** * After ApplicationState is restored from NotebookRepo, * such as after Zeppelin daemon starts or Notebook import, * Application status need to be reset. */ public void resetStatus() { if (status != Status.ERROR) { status = Status.UNLOADED; } } @Override public boolean equals(Object o) { String compareName; if (o instanceof ApplicationState) { return pkg.equals(((ApplicationState) o).getHeliumPackage()); } else if (o instanceof HeliumPackage) { return pkg.equals((HeliumPackage) o); } else { return false; } } @Override public int hashCode() { return pkg.hashCode(); } public String getId() { return id; } public void setStatus(Status status) { this.status = status; } public Status getStatus() { return status; } public String getOutput() { return output; } public void setOutput(String output) { this.output = output; } public synchronized void appendOutput(String output) { if (this.output == null) { this.output = output; } else { this.output += output; } } public HeliumPackage getHeliumPackage() { return pkg; } }