| /* |
| * 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.camel.component.aws.sdb; |
| |
| import com.amazonaws.services.simpledb.AmazonSimpleDB; |
| import com.amazonaws.services.simpledb.model.UpdateCondition; |
| import org.apache.camel.Exchange; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| public abstract class AbstractSdbCommand { |
| |
| protected final Logger log = LoggerFactory.getLogger(getClass()); |
| |
| protected AmazonSimpleDB sdbClient; |
| protected SdbConfiguration configuration; |
| protected Exchange exchange; |
| |
| public AbstractSdbCommand(AmazonSimpleDB sdbClient, SdbConfiguration configuration, Exchange exchange) { |
| this.sdbClient = sdbClient; |
| this.configuration = configuration; |
| this.exchange = exchange; |
| } |
| |
| public abstract void execute(); |
| |
| protected String determineDomainName() { |
| String domainName = exchange.getIn().getHeader(SdbConstants.DOMAIN_NAME, String.class); |
| return domainName != null ? domainName : configuration.getDomainName(); |
| } |
| |
| protected String determineItemName() { |
| String key = exchange.getIn().getHeader(SdbConstants.ITEM_NAME, String.class); |
| if (key == null) { |
| throw new IllegalArgumentException("AWS SDB Item Name header is missing."); |
| } |
| return key; |
| } |
| |
| protected Boolean determineConsistentRead() { |
| return exchange.getIn().getHeader(SdbConstants.CONSISTENT_READ, this.configuration.isConsistentRead(), Boolean.class); |
| } |
| |
| protected UpdateCondition determineUpdateCondition() { |
| return exchange.getIn().getHeader(SdbConstants.UPDATE_CONDITION, UpdateCondition.class); |
| } |
| |
| protected String determineNextToken() { |
| return exchange.getIn().getHeader(SdbConstants.NEXT_TOKEN, String.class); |
| } |
| } |