| /* |
| * 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.rest.internal.web.controllers; |
| |
| import static org.apache.geode.cache.Region.SEPARATOR; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Vector; |
| |
| import org.apache.geode.cache.CacheClosedException; |
| import org.apache.geode.cache.CacheFactory; |
| import org.apache.geode.cache.Region; |
| import org.apache.geode.cache.execute.Function; |
| import org.apache.geode.cache.execute.FunctionContext; |
| import org.apache.geode.cache.query.FunctionDomainException; |
| import org.apache.geode.cache.query.NameResolutionException; |
| import org.apache.geode.cache.query.Query; |
| import org.apache.geode.cache.query.QueryInvocationTargetException; |
| import org.apache.geode.cache.query.SelectResults; |
| import org.apache.geode.cache.query.TypeMismatchException; |
| import org.apache.geode.internal.cache.InternalCache; |
| import org.apache.geode.pdx.PdxInstance; |
| |
| /** |
| * Gemfire function to add free items in the existing order if the total price for that order is |
| * greater then the argument |
| */ |
| public class AddFreeItemToOrders implements Function { |
| |
| @Override |
| public void execute(FunctionContext context) { |
| Region region = null; |
| List<Object> vals = new ArrayList<Object>(); |
| List<Object> keys = new ArrayList<Object>(); |
| List<Object> argsList = new ArrayList<Object>(); |
| Object[] argsArray = null; |
| |
| if (context.getArguments() instanceof Boolean) { |
| |
| } else if (context.getArguments() instanceof String) { |
| String arg = (String) context.getArguments(); |
| } else if (context.getArguments() instanceof Vector) { |
| |
| } else if (context.getArguments() instanceof Object[]) { |
| argsArray = (Object[]) context.getArguments(); |
| argsList = Arrays.asList(argsArray); |
| } else { |
| System.out.println("AddFreeItemToOrders : Invalid Arguments"); |
| } |
| |
| InternalCache cache = null; |
| try { |
| cache = (InternalCache) CacheFactory.getAnyInstance(); |
| cache.getCacheConfig().setPdxReadSerialized(true); |
| region = cache.getRegion("orders"); |
| } catch (CacheClosedException ex) { |
| vals.add("NoCacheFoundResult"); |
| context.getResultSender().lastResult(vals); |
| } |
| |
| String oql = |
| "SELECT DISTINCT entry.key FROM " + SEPARATOR |
| + "orders.entries entry WHERE entry.value.totalPrice > $1"; |
| Object queryArgs[] = new Object[1]; |
| queryArgs[0] = argsList.get(0); |
| |
| final Query query = cache.getQueryService().newQuery(oql); |
| |
| SelectResults result = null; |
| try { |
| result = (SelectResults) query.execute(queryArgs); |
| int resultSize = result.size(); |
| |
| if (result instanceof Collection<?>) |
| for (Object item : result) { |
| keys.add(item); |
| } |
| } catch (FunctionDomainException e) { |
| if (cache != null) |
| cache.getLogger() |
| .info("Caught FunctionDomainException while executing function AddFreeItemToOrders: " |
| + e.getMessage()); |
| |
| } catch (TypeMismatchException e) { |
| if (cache != null) |
| cache.getLogger() |
| .info("Caught TypeMismatchException while executing function AddFreeItemToOrders: " |
| + e.getMessage()); |
| } catch (NameResolutionException e) { |
| if (cache != null) |
| cache.getLogger() |
| .info("Caught NameResolutionException while executing function AddFreeItemToOrders: " |
| + e.getMessage()); |
| } catch (QueryInvocationTargetException e) { |
| if (cache != null) |
| cache.getLogger().info( |
| "Caught QueryInvocationTargetException while executing function AddFreeItemToOrders" |
| + e.getMessage()); |
| } |
| |
| // class has to be in classpath. |
| try { |
| Item it = (Item) (argsList.get(1)); |
| for (Object key : keys) { |
| Object obj = region.get(key); |
| if (obj instanceof PdxInstance) { |
| PdxInstance pi = (PdxInstance) obj; |
| Order receivedOrder = (Order) pi.getObject(); |
| receivedOrder.addItem(it); |
| |
| region.put(key, receivedOrder); |
| } |
| } |
| |
| context.getResultSender().lastResult("success"); |
| |
| } catch (ClassCastException e) { |
| |
| context.getResultSender().lastResult("failure"); |
| } catch (Exception e) { |
| context.getResultSender().lastResult("failure"); |
| } |
| } |
| |
| @Override |
| public String getId() { |
| return "AddFreeItemToOrders"; |
| } |
| |
| @Override |
| public boolean hasResult() { |
| return true; |
| } |
| |
| @Override |
| public boolean optimizeForWrite() { |
| return false; |
| } |
| |
| @Override |
| public boolean isHA() { |
| return false; |
| } |
| } |