Java tutorial
/** * Copyright 2012 Comcast Corporation * * 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.comcast.cqs.io; import java.util.List; import java.util.Map; import org.apache.commons.lang.StringEscapeUtils; import com.comcast.cqs.model.CQSBatchResultErrorEntry; import com.comcast.cqs.model.CQSMessage; import com.comcast.cqs.util.CQSConstants; /** * API response for messages * @author baosen, aseem, vvenkatraman, bwolf * */ public class CQSMessagePopulator extends CQSPopulator { public static String getSendMessageResponse(CQSMessage message) { StringBuffer out = new StringBuffer("<SendMessageResponse>\n"); out.append("\t<SendMessageResult>\n"); out.append("\t\t<MD5OfMessageBody>").append(message.getMD5OfBody()).append("</MD5OfMessageBody>\n"); if (message.getMD5OfMessageAttributes() != null) { out.append("\t\t<MD5OfMessageAttributes>").append(message.getMD5OfMessageAttributes()) .append("</MD5OfMessageAttributes>\n"); } out.append("\t\t<MessageId>").append(message.getMessageId()).append("</MessageId>\n"); out.append("\t</SendMessageResult>\n"); out.append("\t").append(getResponseMetadata()).append("\n"); out.append("</SendMessageResponse>\n"); return out.toString(); } public static String getSendMessageBatchResponse(List<CQSMessage> messages, List<CQSBatchResultErrorEntry> errorList) { StringBuffer out = new StringBuffer("<SendMessageBatchResponse>\n"); out.append("\t<SendMessageBatchResult>\n"); for (CQSMessage message : messages) { out.append("\t\t<SendMessageBatchResultEntry>\n"); out.append("\t\t\t<Id>").append(message.getSuppliedMessageId()).append("</Id>\n"); out.append("\t\t\t<MessageId>").append(message.getMessageId()).append("</MessageId>\n"); out.append("\t\t\t<MD5OfMessageBody>").append(message.getMD5OfBody()).append("</MD5OfMessageBody>\n"); if (message.getMD5OfMessageAttributes() != null) { out.append("\t\t<MD5OfMessageAttributes>").append(message.getMD5OfMessageAttributes()) .append("</MD5OfMessageAttributes>\n"); } out.append("\t\t</SendMessageBatchResultEntry>\n"); } if (errorList.size() > 0) { out.append(getBatchErrorResult(errorList)); } out.append("\t</SendMessageBatchResult>\n"); out.append("\t").append(getResponseMetadata()).append("\n"); out.append("</SendMessageBatchResponse>\n"); return out.toString(); } private static String getBatchErrorResult(List<CQSBatchResultErrorEntry> errorList) { StringBuffer out = new StringBuffer(); for (CQSBatchResultErrorEntry error : errorList) { out.append("\t\t<BatchResultErrorEntry>\n"); out.append("\t\t\t<Id>").append(error.getId()).append("</Id>\n"); out.append("\t\t\t<SenderFault>").append(error.getSenderFault()).append("</SenderFault>\n"); out.append("\t\t\t<Code>").append(error.getCode()).append("</Code>\n"); out.append("\t\t\t<Message>").append(error.getMessage()).append("</Message>\n"); out.append("\t\t</BatchResultErrorEntry>\n"); } return out.toString(); } public static String getDeleteMessageBatchResponse(List<String> ids, List<CQSBatchResultErrorEntry> errorList) { StringBuffer out = new StringBuffer("<DeleteMessageBatchResponse>\n"); out.append("\t<DeleteMessageBatchResult>\n"); for (String id : ids) { out.append("\t\t<DeleteMessageBatchResultEntry>\n"); out.append("\t\t\t<Id>").append(id).append("</Id>\n"); out.append("\t\t</DeleteMessageBatchResultEntry>\n"); } if (errorList.size() > 0) { out.append(getBatchErrorResult(errorList)); } out.append("\t</DeleteMessageBatchResult>\n"); out.append("\t").append(getResponseMetadata()).append("\n"); out.append("</DeleteMessageBatchResponse>\n"); return out.toString(); } public static String getDeleteMessageResponse() { String out = "<DeleteMessageResponse>\n\t" + getResponseMetadata() + "\n</DeleteMessageResponse>\n"; return out; } public static String getPurgeQueueResponse() { String out = "<PurgeQueueResponse>\n\t" + getResponseMetadata() + "\n</PurgeQueueResponse>\n"; return out; } public static String getChangeMessageVisibilityResponse() { String out = "<ChangeMessageVisibilityResponse>\n\t" + getResponseMetadata() + "</ChangeMessageVisibilityResponse>\n"; return out; } public static String getChangeMessageVisibilityBatchResponse(List<String> ids, List<CQSBatchResultErrorEntry> errorList) { StringBuffer out = new StringBuffer("<ChangeMessageVisibilityBatchResponse>\n"); out.append("\t<ChangeMessageVisibilityBatchResult>\n"); for (String id : ids) { out.append("\t\t<ChangeMessageVisibilityBatchResultEntry>\n"); out.append("\t\t\t<Id>").append(id).append("</Id>\n"); out.append("\t\t</ChangeMessageVisibilityBatchResultEntry>\n"); } if (errorList.size() > 0) { out.append(getBatchErrorResult(errorList)); } out.append("\t</ChangeMessageVisibilityBatchResult>\n"); out.append("\t").append(getResponseMetadata()).append("\n"); out.append("</ChangeMessageVisibilityBatchResponse>\n"); return out.toString(); } public static String getReceiveMessageResponseAfterSerializing(List<CQSMessage> messages, List<String> filterAttributs, List<String> filterMessageAttributes) { StringBuffer out = new StringBuffer("<ReceiveMessageResponse>\n"); out.append("\t<ReceiveMessageResult>\n"); for (CQSMessage message : messages) { out.append(serializeMessage(message, filterAttributs, filterMessageAttributes)); } out.append("\t</ReceiveMessageResult>\n"); out.append("\t").append(getResponseMetadata()).append("\n"); out.append("</ReceiveMessageResponse>\n"); return out.toString(); } public static String serializeMessage(CQSMessage message, List<String> filterAttributes, List<String> filterMessageAttributes) { StringBuffer attributesXmlFragment = fillAttributesInReturn(message, filterAttributes); StringBuffer messageXml = new StringBuffer("\t\t<Message>\n"); messageXml.append("\t\t\t<MessageId>").append(message.getMessageId()).append("</MessageId>\n"); messageXml.append("\t\t\t<ReceiptHandle>").append(message.getReceiptHandle()).append("</ReceiptHandle>\n"); messageXml.append("\t\t\t<MD5OfBody>").append(message.getMD5OfBody()).append("</MD5OfBody>\n"); messageXml.append("\t\t\t<Body>") .append(StringEscapeUtils.escapeXml(message.getBody()).replaceAll("\r", "
")) .append("</Body>\n"); messageXml.append(attributesXmlFragment); if (message.getMessageAttributes() != null && message.getMessageAttributes().size() > 0) { for (String key : message.getMessageAttributes().keySet()) { if (filterMessageAttributes.contains("All") || filterMessageAttributes.contains("all") || filterMessageAttributes.contains(key)) { String type = message.getMessageAttributes().get(key).getDataType(); String stringValue = message.getMessageAttributes().get(key).getStringValue(); messageXml.append("\t\t\t<MessageAttribute>\n"); messageXml.append("\t\t\t\t<Name>").append(key).append("</Name>\n"); messageXml.append("\t\t\t\t<Value>\n"); messageXml.append("\t\t\t\t\t<DataType>").append(type).append("</DataType>\n"); if (!type.equals("Binary")) { messageXml.append("\t\t\t\t\t<StringValue>").append(stringValue).append("</StringValue>\n"); } else { messageXml.append("\t\t\t\t\t<BinaryValue>").append(stringValue).append("</BinaryValue>\n"); } messageXml.append("\t\t\t\t</Value>\n"); messageXml.append("\t\t\t</MessageAttribute>\n"); } } messageXml.append("\t\t\t<MD5OfMessageAttributes>").append(message.getMD5OfMessageAttributes()) .append("</MD5OfMessageAttributes>\n"); } messageXml.append("\t\t</Message>\n"); return messageXml.toString(); } private static StringBuffer fillAttributesInReturn(CQSMessage message, List<String> filterAttributes) { StringBuffer attributesXmlFragment = new StringBuffer(""); if (message.getAttributes() != null) { for (Map.Entry<String, String> entry : message.getAttributes().entrySet()) { if (entry.getKey() != null && entry.getKey().length() > 0 && !entry.getKey().equals(CQSConstants.DELAY_SECONDS) && (filterAttributes.isEmpty() || filterAttributes.contains("All") || filterAttributes.contains(entry.getKey()))) { attributesXmlFragment.append("\t\t\t<Attribute>").append("<Name>").append(entry.getKey()) .append("</Name>").append("<Value>").append(entry.getValue()).append("</Value>") .append("</Attribute>\n"); } } } return attributesXmlFragment; } }