| /* |
| * 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 flex.messaging.messages; |
| |
| import java.io.IOException; |
| import java.io.ObjectInput; |
| import java.io.ObjectOutput; |
| |
| import flex.messaging.util.UUIDUtils; |
| import flex.messaging.log.Log; |
| |
| /** |
| * This type of message contains information necessary to perform |
| * point-to-point or publish-subscribe messaging. |
| */ |
| public class AsyncMessage extends AbstractMessage implements SmallMessage |
| { |
| /** |
| * This number was generated using the 'serialver' command line tool. |
| * This number should remain consistent with the version used by |
| * ColdFusion to communicate with the message broker over RMI. |
| */ |
| private static final long serialVersionUID = -3549535089417916783L; |
| |
| /** |
| * The name for the subtopic header if the message targets a destination |
| * subtopic. |
| */ |
| public static final String SUBTOPIC_HEADER_NAME = "DSSubtopic"; |
| |
| // Serialization constants |
| private static byte CORRELATION_ID_FLAG = 1; |
| private static byte CORRELATION_ID_BYTES_FLAG = 2; |
| |
| protected String correlationId; |
| protected byte[] correlationIdBytes; |
| |
| /** |
| * Default constructor for <code>AsyncMessage</code>. |
| */ |
| public AsyncMessage() |
| { |
| // No-op. |
| } |
| |
| /** |
| * Gets the correlationId of the <code>AsyncMessage</code>. |
| * |
| * @return The correlation id. |
| */ |
| public String getCorrelationId() |
| { |
| return correlationId; |
| } |
| |
| /** |
| * Sets the correlationId of the <code>AsyncMessage</code>. |
| * |
| * @param correlationId The correlationId for the message. |
| */ |
| public void setCorrelationId(String correlationId) |
| { |
| this.correlationId = correlationId; |
| } |
| |
| /** |
| * |
| */ |
| public Message getSmallMessage() |
| { |
| return getClass() == AsyncMessage.class? new AsyncMessageExt(this) : null; |
| } |
| |
| /** |
| * |
| */ |
| @Override public void readExternal(ObjectInput input)throws IOException, ClassNotFoundException |
| { |
| super.readExternal(input); |
| |
| short[] flagsArray = readFlags(input); |
| for (int i = 0; i < flagsArray.length; i++) |
| { |
| short flags = flagsArray[i]; |
| short reservedPosition = 0; |
| |
| if (i == 0) |
| { |
| if ((flags & CORRELATION_ID_FLAG) != 0) |
| correlationId = (String)input.readObject(); |
| |
| if ((flags & CORRELATION_ID_BYTES_FLAG) != 0) |
| { |
| correlationIdBytes = (byte[])input.readObject(); |
| correlationId = UUIDUtils.fromByteArray(correlationIdBytes); |
| } |
| |
| reservedPosition = 2; |
| } |
| |
| // For forwards compatibility, read in any other flagged objects |
| // to preserve the integrity of the input stream... |
| if ((flags >> reservedPosition) != 0) |
| { |
| for (short j = reservedPosition; j < 6; j++) |
| { |
| if (((flags >> j) & 1) != 0) |
| input.readObject(); |
| } |
| } |
| } |
| } |
| |
| /** |
| * |
| */ |
| @Override public void writeExternal(ObjectOutput output) throws IOException |
| { |
| super.writeExternal(output); |
| |
| if (correlationIdBytes == null && correlationId != null) |
| correlationIdBytes = UUIDUtils.toByteArray(correlationId); |
| |
| short flags = 0; |
| |
| if (correlationId != null && correlationIdBytes == null) |
| flags |= CORRELATION_ID_FLAG; |
| |
| if (correlationIdBytes != null) |
| flags |= CORRELATION_ID_BYTES_FLAG; |
| |
| output.writeByte(flags); |
| |
| if (correlationId != null && correlationIdBytes == null) |
| output.writeObject(correlationId); |
| |
| if (correlationIdBytes != null) |
| output.writeObject(correlationIdBytes); |
| } |
| |
| @Override protected String toStringFields(int indentLevel) |
| { |
| String sep = getFieldSeparator(indentLevel); |
| String s = sep + "clientId = " + (Log.isExcludedProperty("clientId") ? Log.VALUE_SUPRESSED : clientId); |
| s += sep + "correlationId = " + (Log.isExcludedProperty("correlationId") ? Log.VALUE_SUPRESSED : correlationId); |
| s += sep + "destination = " + (Log.isExcludedProperty("destination") ? Log.VALUE_SUPRESSED : destination); |
| s += sep + "messageId = " + (Log.isExcludedProperty("messageId") ? Log.VALUE_SUPRESSED : messageId); |
| s += sep + "timestamp = " + (Log.isExcludedProperty("timestamp") ? Log.VALUE_SUPRESSED : String.valueOf(timestamp)); |
| s += sep + "timeToLive = " + (Log.isExcludedProperty("timeToLive") ? Log.VALUE_SUPRESSED : String.valueOf(timeToLive)); |
| s += sep + "body = " + (Log.isExcludedProperty("body") ? Log.VALUE_SUPRESSED : bodyToString(body, indentLevel)); |
| s += super.toStringFields(indentLevel); |
| return s; |
| } |
| |
| } |