| /* |
| * 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.geode.cache.lucene.internal.results; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Set; |
| |
| import org.apache.logging.log4j.Logger; |
| |
| import org.apache.geode.cache.CacheClosedException; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.cache.execute.FunctionContext; |
| import org.apache.geode.cache.execute.RegionFunctionContext; |
| import org.apache.geode.cache.partition.PartitionRegionHelper; |
| import org.apache.geode.internal.cache.EntrySnapshot; |
| import org.apache.geode.internal.cache.PrimaryBucketException; |
| import org.apache.geode.internal.cache.Token; |
| import org.apache.geode.internal.cache.execute.InternalFunction; |
| import org.apache.geode.internal.cache.execute.InternalFunctionInvocationTargetException; |
| import org.apache.geode.logging.internal.log4j.api.LogService; |
| import org.apache.geode.management.internal.security.ResourcePermissions; |
| import org.apache.geode.security.ResourcePermission; |
| |
| /** |
| * {@link LuceneGetPageFunction} Returns the values of entries back to the user This behaves |
| * basically like a getAll, but it does not invoke a cache loader |
| */ |
| public class LuceneGetPageFunction implements InternalFunction<Object> { |
| private static final long serialVersionUID = 1L; |
| public static final String ID = LuceneGetPageFunction.class.getName(); |
| |
| private static final Logger logger = LogService.getLogger(); |
| |
| @Override |
| public void execute(FunctionContext context) { |
| try { |
| RegionFunctionContext ctx = (RegionFunctionContext) context; |
| Region region = PartitionRegionHelper.getLocalDataForContext(ctx); |
| Set<?> keys = ctx.getFilter(); |
| List<PageEntry> results = new PageResults(keys.size()); |
| for (Object key : keys) { |
| PageEntry entry = getEntry(region, key); |
| if (entry != null) { |
| results.add(entry); |
| } |
| } |
| ctx.getResultSender().lastResult(results); |
| } catch (CacheClosedException | PrimaryBucketException e) { |
| logger.debug("Exception during lucene query function", e); |
| throw new InternalFunctionInvocationTargetException(e); |
| } |
| } |
| |
| protected PageEntry getEntry(final Region region, final Object key) { |
| final EntrySnapshot entry = (EntrySnapshot) region.getEntry(key); |
| if (entry == null) { |
| return null; |
| } |
| |
| final Object value = entry.getRegionEntry().getValue(null); |
| if (value == null || Token.isInvalidOrRemoved(value)) { |
| return null; |
| } |
| |
| return new PageEntry(key, value); |
| } |
| |
| |
| @Override |
| public String getId() { |
| return ID; |
| } |
| |
| @Override |
| public boolean optimizeForWrite() { |
| return false; |
| } |
| |
| @Override |
| public Collection<ResourcePermission> getRequiredPermissions(String regionName) { |
| return Collections.singletonList(ResourcePermissions.DATA_READ); |
| } |
| } |