// Copyright 2009 Google Inc. All Rights Reserved. // // Licensed 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 com.google.enterprise.connector.traversal; /** * A mock query traverser that can be canceled. */ public class CancellableQueryTraverser implements Traverser { boolean cancelled = false; public BatchResult runBatch(BatchSize ignored) { // infinite loop while (!isCancelled()) { try { Thread.sleep(1000); } catch (InterruptedException ie) { // do nothing } } return new BatchResult(TraversalDelayPolicy.POLL, 0); } public synchronized void cancelBatch() { cancelled = true; } public synchronized boolean isCancelled() { return cancelled; } }