/**
* <summary>
* Gathers the message identified by <c>id</c> in the message's
* recipt id, set prior to the message having been enqueued (See:
* <c>Enqueue(QueueMessage)</c>. The results are placed in the object
* <c>msg</c>. The message retrieved is <i>not</i> remvoed from the
* queue and is available for reading by other queue readers.
* </summary>
*
* <remarks>
* <para>Note: Message responsders will typically place the message id of the original
* message in the recipt id of the message being returned. This round-trip
* message identification is provided by SAFMQ as a method for coordinated two-way
* communications.</para>
* </remarks>
*
* <param name="retrievebody">
* A flag indicating whether the body of the message should be retrieved</param>
* <param name="id"> The UUID of the message to be retrieved.</param>
* <param name="timeout">
* The number of seconds to wait before returning, a value of zero (0) will
* cause the method to return immediately if no messages are present on the queue,
* a value of (-1) will cause the method to wait until a message is placed on the queue.
* </param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>Safmq.EC_NOERROR</c>, otherwise
* see MQConnection.PeekID() for result codes.</returns>
*
* <seealso cref="MQConnection.PeekID(QueueHandle,bool,UUID,int,QueueMessage)">MQConnection.Retrieve(QueueHandle,bool,int,QueueMessage)</seealso>
* <seealso cref="Enqueue(QueueMessage)">Enqueue(QueueMessage)</seealso>
*/
public ErrorCode PeekID(bool retrievebody, UUID id, int timeout, QueueMessage msg)
{
return(con.PeekID(que, retrievebody, id, timeout, msg));
}
/**
* <summary>
* Retrieves the message pointed to by <c>cursorID</c>. The results
* are placed in the object <c>msg</c>. The message retrieved is
* <i>not</i> remvoed from the queue and is available for reading by other
* queue readers.
*
* <para>Note: Retrieved messages are removed from the queue.</para>
* </summary>
*
* <param name="retrievebody"> A flag indicating whether the body of the message should be retrieved</param>
* <param name="cursorID"> The cursor indicating the current position in the queue to be read from</param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>Safmq.EC_NOERROR</c>, otherwise
* see <c>MQConnection.PeekCursor()</c> for result codes.</returns>
* <seealso cref="MQConnection.PeekCursor(QueueHandle,bool,CursorHandle,QueueMessage)">MQConnection.Retrieve(QueueHandle,bool,int,QueueMessage)</seealso>
*/
public ErrorCode PeekCursor(bool retrievebody, CursorHandle cursorID, QueueMessage msg)
{
return(con.PeekCursor(que, retrievebody, cursorID, msg));
}
/**
* <summary>
* Retrieves the highest priority FIFO message present on the queue. The results
* are placed in the object <c>msg</c>.
*
* <para>Note: Retrieved messages are removed from the queue</para>
* </summary>
*
* <param name="retrievebody">
* A flag indicating whether the body of the message should be retrieved</param>
* <param name="timeout">
* The number of seconds to wait before returning, a value of zero (0) will
* cause the method to return immediately if no messages are present on the queue,
* a value of (-1) will cause the method to wait until a message is placed on the queue.
* </param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>Safmq.EC_NOERROR</c>, otherwise
* see MQConnection.Retrieve() for result codes.</returns>
* <seealso cref="MQConnection.Retrieve(QueueHandle,bool,int,QueueMessage)">MQConnection.Retrieve(QueueHandle,bool,int,QueueMessage)</seealso>
*/
public ErrorCode Retrieve(bool retrievebody, int timeout, QueueMessage msg)
{
return(con.Retrieve(que, retrievebody, timeout, msg));
}
/**
* <summary>
* Gathers the highest priority FIFO message present on the queue. The results
* are placed in the object <c>msg</c>. Any errors from the operation are
* returned on the stack. The message retrieved is <i>not</i> remvoed from the
* queue and is available for reading by other queue readers.
* </summary>
*
* <param name="retrievebody">
* A flag indicating whether the body of the message should be retrieved</param>
* <param name="timeout">
* The number of seconds to wait before returning, a value of zero (0) will
* cause the method to return immediately if no messages are present on the queue,
* a value of (-1) will cause the method to wait until a message is placed on the queue.
* </param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>Safmq.EC_NOERROR</c>, otherwise
* see MQConnection.Retrieve() for result codes.</returns>
* <seealso cref="MQConnection.PeekFront(QueueHandle,bool,int,QueueMessage)">MQConnection.Retrieve(QueueHandle,bool,int,QueueMessage)</seealso>
*/
public ErrorCode PeekFront(bool retrievebody, int timeout, QueueMessage msg)
{
return(con.PeekFront(que, retrievebody, timeout, msg));
}
public void test_CreateTempQueue()
{
using (MQConnection con = connectToServer(address, null, null)) {
String queueName = String.Empty;
QueueHandle qh = new QueueHandle();
// Try and create a temporary queue
ErrorCode err = con.CreateTempQueue(out queueName, qh);
Console.WriteLine("queueName:" + queueName);
Assert.AreEqual(ErrorCode.EC_NOERROR, err, "Creating Queue");
// Get permissions for that queue
List<QueuePermissions> perms = new List<QueuePermissions>();
con.QueueEnumeratePermissions(queueName, perms);
for (int x = 0; x < perms.Count; ++x) {
QueuePermissions perm = perms[x];
Console.WriteLine(perm.EntityName + ":" + perm.Read + ":" + perm.Write + ":" + perm.Destroy + ":" + perm.ChangeSecurity);
}
Assert.IsTrue(perms.Count > 0);
addAllUsers(con);
// Try and write to that queue with another user.
using (MQConnection con2 = connectToServer(simpleAddress, TEST_USERS[0], TEST_USERS[0])) {
QueueHandle qh2 = new QueueHandle();
ErrorCode rc = con2.OpenQueue(queueName, qh2);
Assert.IsTrue(rc == ErrorCode.EC_NOERROR, "Open Temp Queue rc:" + rc);
QueueMessage msg = new QueueMessage();
msg.Label = "Hello World";
Assert.IsTrue(ErrorCode.EC_NOERROR == con2.Enqueue(qh2, msg), "Enqueue to temp");
con2.CloseQueue(qh2);
}
}
}
/**
* <summary>
* Retrieves the message pointed to by <c>cursorID</c>. The results
* are placed in the object <c>msg</c>.
* </summary>
*
* <remarks>
* <para>Note: Retrieved messages are removed from the queue.</para>
* </remarks>
*
* <param name="qhandle"> A handle to a queue previously opened by a call to OpenQueue(string)</param>
* <param name="retrievebody"> A flag indicating whether the body of the message should be retrieved</param>
* <param name="cursorID"> The cursor indicating the current position in the queue to be Read from</param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>ErrorCode.EC_NOERROR</c>, otherwise
* errors such as but not limited to could occur: <br/>
* <table border="0" cellpadding="3" cellspacing="0">
* <tr><td><c>ErrorCode.EC_NETWORKERROR</c></td>
* <td>A networking error has occurred and the conneciton
* is nolonger valid.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOMOREMESSAGES</c></td>
* <td>The queue is empty and no more messages are
* available.
* </td></tr>
* <tr><td><c>ErrorCode.EC_ALREADYCLOSED</c></td>
* <td>The queue reference is not valid as it has
* been closed.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOTAUTHORIZED</c></td>
* <td>The user is not authorized to Read messages from this
* queue.
* </td></tr>
* <tr><td><c>ErrorCode.EC_CURSORINVALIDATED</c></td>
* <td>The cursor nolonger points to a valid location in the
* queue.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOTOPEN</c></td>
* <td>The queue specified has not been opened by this connection.
* </td></tr>
* </table>
* </returns>
*
* <seealso cref="OpenQueue(string, QueueHandle)"/>
*/
public ErrorCode RetrieveCursor(QueueHandle qhandle, bool retrievebody, CursorHandle cursorID, QueueMessage msg)
{
ErrorCode ret = ErrorCode.EC_NOERROR;
PEEK_CURSOR_RETRIEVE_CURSOR_PARAMS parms = new PEEK_CURSOR_RETRIEVE_CURSOR_PARAMS();
parms.queueID = qhandle;
parms.retrievebody = (byte)(retrievebody?1:0);
parms.cursorID = cursorID;
try {
output.Write(Safmq.CMD_RETRIEVE_CURSOR);
parms.Write(output);
output.Flush();
ret = getResponseCode();
if (ret == ErrorCode.EC_NOERROR) {
msg.Read(input,retrievebody);
ret = ackRetrieveCursor(qhandle,msg);
}
} catch (Exception) {
ret = ErrorCode.EC_NETWORKERROR;
}
return ret;
}
/**
* <summary>
* Gathers the highest priority FIFO message present on the queue. The results
* are placed in the object <c>msg</c>. Any errors from the operation are
* returned on the stack. The message retrieved is <i>not</i> remvoed from the
* queue and is available for reading by other queue readers.
* </summary>
*
* <param name="retrievebody">
* A flag indicating whether the body of the message should be retrieved</param>
* <param name="timeout">
* The number of seconds to wait before returning, a value of zero (0) will
* cause the method to return immediately if no messages are present on the queue,
* a value of (-1) will cause the method to wait until a message is placed on the queue.
* </param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>Safmq.EC_NOERROR</c>, otherwise
* see MQConnection.Retrieve() for result codes.</returns>
* <seealso cref="MQConnection.PeekFront(QueueHandle,bool,int,QueueMessage)">MQConnection.Retrieve(QueueHandle,bool,int,QueueMessage)</seealso>
*/
public ErrorCode PeekFront(bool retrievebody, int timeout, QueueMessage msg)
{
return con.PeekFront(que,retrievebody, timeout, msg);
}
public void test_PeekID_PeekFront_OpenCursor_PeekCursor_SeekID_RetrieveCursor_AdvanceCursor_TestCurosr_CloseCursor_RetrieveID()
{
MQConnection con = null;
try {
con = connectToServer(address, null, null);
addAllGroups(con);
addAllUsers(con);
addAllQueues(con);
QueueHandle handle = new QueueHandle();
ErrorCode ec = con.OpenQueue(TEST_QUEUE[0], handle);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to open queue: " + TEST_QUEUE[0]);
sendMessages(con, handle, 5, 0);
QueueMessage msg = new QueueMessage();
StreamWriter sw = new StreamWriter(msg.Stream);
sw.WriteLine(SPECIAL_MESSAGE);
sw.Close();
byte[] b = { 0, 0, 0, 0, 0, 0, 0, 0 };
UUID uuid = new UUID(new Guid(123456789,4321,1234,b));
msg.ReciptID = uuid;
//msg.ReciptID = ((UUID)uuid.Clone());
ec = con.Enqueue(handle, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to write special message");
sendMessages(con, handle, 5, 5);
msg = new QueueMessage();
ec = con.PeekID(handle, true, uuid, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to PeekID:" + ec);
string txt = (new StreamReader(msg.Stream)).ReadLine();
Console.WriteLine("txt:\t\t\t" + txt);
Console.WriteLine("uuid:\t\t\t" + (Guid)uuid);
Console.WriteLine("msg.ReceiptID:\t" + (Guid)msg.ReciptID);
Console.WriteLine("txt.Equals(SPECIAL_MESSAGE): " + txt.Equals(SPECIAL_MESSAGE));
Console.WriteLine("uuid.Equals(msg.ReceiptID)): " + uuid.Equals(msg.ReciptID));
Assert.IsTrue(txt.Equals(SPECIAL_MESSAGE) && uuid.Equals(msg.ReciptID), "Incorrect PeekID Message: " + (Guid)msg.ReciptID);
msg = new QueueMessage();
ec = con.PeekFront(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to PeekFront");
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals("0"), "Incorrect PeekFront Message: body=" + txt);
CursorHandle cur = new CursorHandle();
ec = con.OpenCursor(handle, cur);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to OpenCursor");
ec = con.SeekID(handle, uuid, 0, cur);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to SeekID");
msg = new QueueMessage();
ec = con.PeekCursor(handle, true, cur, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to PeekCursor");
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals(SPECIAL_MESSAGE) && uuid.Equals(msg.ReciptID), "Incorrect PeekCursor Message: " + msg.ReciptID);
ec = con.AdvanceCursor(handle, cur);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to AdvanceCursor");
msg = new QueueMessage();
ec = con.PeekCursor(handle, true, cur, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to PeekCursor (after advance)");
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals("5"), "Incorrect PeekCursor (after advance) Message: " + msg.ReciptID);
msg = new QueueMessage();
ec = con.RetrieveCursor(handle, true, cur, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveCursor");
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals("5"), "Incorrect PeekCursor (after RetrieveCursor) Message: " + msg.ReciptID);
ec = con.TestCursor(handle, cur);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to test Cursor, ec: " + ec);
ec = con.CloseCursor(handle, cur);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to CloseCursor, ec: " + ec);
msg = new QueueMessage();
ec = con.RetrieveID(handle, true, uuid, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveID");
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals(SPECIAL_MESSAGE) && uuid.Equals(msg.ReciptID), "Incorrect RetrieveID Message: " + msg.ReciptID);
int[] bodies = { 0, 1, 2, 3, 4, 6, 7, 8, 9 }; // 5 was retrieved above.
for(int x=0; x<bodies.Length; x++) {
msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to retrieve message: " + x);
txt = (new StreamReader(msg.Stream)).ReadLine();
Console.WriteLine("txt: " + txt);
Assert.IsTrue(int.Parse(txt) == bodies[x], "Incorrect message: " + txt);
}
ec = con.CloseQueue(handle);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to Close queue");
} finally {
if (con != null)
con.Close();
}
}
/**
* <summary>
* Enqueues a message for message relay forwarding to another queue/queue server.
* </summary>
*
* <remarks>
* After completion, the return code will be EC_NOERROR on success and the <c>msg</c>'s
* timestamp and message will have been set. It is important to note if the resposne
* queue name is not set, any errors from the final destination queue/queue server will
* be lost. It is suggested to use roundtripping unless error determination is not
* required, otherwise errors generated by the final destination server such as:<br/>
* <table border="0">
* <tr><td>EC_DOESNOTEXIST</td></tr>
* <tr><td>EC_NOTAUTHORIZED</td></tr>
* <tr><td>EC_WRONGMESSAGETYPE</td></tr>
* <tr><td>EC_NOTOPEN</td></tr>
* <tr><td>EC_FORWARDNOTALLOWED</td></tr>
* <tr><td>EC_DUPLICATEMSGID</td></tr>
* </table>
* will not returned to the client.
* </remarks>
*
* <param name="uri"> A safmq Uri in the format safmq://user:password@server:port/queuename -or- for ssl safmqs://user:password@server:port/queuename.<br/>
* Note: the port specification is optional.</param>
* <param name="msg"> The message to be sent.</param>
*
* <returns>ErrorCode.EC_NOERROR on success<br/>
* <table border="0">
* <tr><td>ErrorCode.EC_INVALIDNAME</td><td>incase of an invalid url</td></tr>
* <tr><td>ErrorCode.EC_NETWORKERROR</td></tr>
* <tr><td>ErrorCode.EC_NOTAUTHORIZED</td></tr>
* <tr><td>ErrorCode.EC_NOTOPEN</td></tr>
* <tr><td>ErrorCode.EC_WRONGMESSAGETYPE</td></tr>
* <tr><td>ErrorCode.EC_FORWARDNOTALLOWED</td></tr>
* </table>
* </returns>
*/
public ErrorCode EnqueueWithRelay(Uri uri, QueueMessage msg)
{
ErrorCode ret;
try {
QueueHandle forward = new QueueHandle();
string dest = "";
string userinfo = uri.UserInfo;
string user, password;
user = password = "";
ret = OpenQueue(FORWARD_QUEUE_NAME, forward);
if (ret == ErrorCode.EC_NOERROR) {
StringBuilder u, p;
if (MQBuilder.parseUserInfo(userinfo, u = new StringBuilder(), p = new StringBuilder())) {
user = u.ToString();
password = p.ToString();
}
if (uri.Scheme.Length > 0)
dest = uri.Scheme + ":";
dest += "//";
if (user.Length > 0) {
dest += user;
if (password.Length > 0)
dest += ":" + password;
dest += "@";
}
dest += uri.Host;
if (uri.Port > 0)
dest += ":" + uri.Port;
dest += uri.AbsolutePath;
msg.Label = (dest + "?label=" + msg.Label);
ret = Enqueue(forward, msg);
ErrorCode ec = CloseQueue(forward);
if (ret == ErrorCode.EC_NOERROR && ec != ErrorCode.EC_NOERROR)
ret = ec;
} else if (ret == ErrorCode.EC_DOESNOTEXIST) {
ret = ErrorCode.EC_FORWARDNOTALLOWED;
}
} catch (Exception) {
ret = ErrorCode.EC_INVALIDNAME;
}
return ret;
}
/**
* <summary>
* Places a message on the queue. The object <c>msg</c> must have
* been previously prepared before calling this method. Upon successfull sending
* of the message, the message id and message timestamp will be set by the server
* and may be retrieved by a call to <c>QueueMessage.getMessageID()</c>
* and <c>QueueMessage.getTimeStamp()</c> respectively.
* </summary>
*
* <remarks>
* <para>Note: Message responsders will typically place the message id of the original
* message in the recipt id of the message being returned. This round-trip
* message identification is provided by SAFMQ as a method for coordinated two-way
* communications.</para>
* </remarks>
*
* <param name="msg">The message to be placed on the queue</param>
* <returns>The results of a call to <c>MQConnection.Enqueue()</c></returns>
* <seealso cref="MQConnection.Enqueue(QueueHandle,QueueMessage)">MQConnection.Enqueue(QueueHandle,QueueMessage) for details on errors</seealso>
*/
public ErrorCode Enqueue(QueueMessage msg)
{
return con.Enqueue(que,msg);
}
/**
* <summary>
* Places a message on the queue. The object <c>msg</c> must have
* been previously prepared before calling this method. Upon successfull sending
* of the message, the message id and message timestamp will be set by the server
* and may be retrieved by a call to <c>QueueMessage.getMessageID()</c>
* and <c>QueueMessage.getTimeStamp()</c> respectively.
* </summary>
* <remarks>
* <para>Note: Message responsders will typically place the message id of the original
* message input the recipt id of the message being returned. This round-trip
* message identification is provided by SAFMQ as a method for coordinated two-way
* communications.</para>
* </remarks>
*
* <param name="handle"> A reference to a queue opened by a call to <c>OpenQueue()</c> </param>
* <param name="msg"> The message to be placed on the queue</param>
*
* <returns><c>ErrorCode.EC_NOERROR</c> on success, Otherwise results may be such listed
* below but are not limited to:
* <table border="0" cellpadding="3" cellspacing="0">
* <tr><td><c>ErrorCode.EC_NETWORKERROR</c></td>
* <td>A networking error has occurred and the conneciton
* is nolonger valid.
* </td></tr>
* <tr><td><c>ErrorCode.EC_ALREADYCLOSED</c></td>
* <td>The queue reference is not valid as it has
* been closed.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOTAUTHORIZED</c></td>
* <td>The user is not authorized to Write messages to this
* queue.
* </td></tr>
* </table>
* </returns>
*
* <seealso cref="OpenQueue(string, QueueHandle)"/>
*/
public ErrorCode Enqueue(QueueHandle handle, QueueMessage msg)
{
ErrorCode ret = ErrorCode.EC_NETWORKERROR;
ENQUEUE_PARAMS parms = new ENQUEUE_PARAMS();
parms.queueID = handle;
parms.msg = msg;
try {
output.Write(Safmq.CMD_ENQUEUE);
parms.Write(output);
output.Flush();
ret = getResponseCode();
if (ret == ErrorCode.EC_NOERROR) {
ENQUEUE_RESPONSE_DATA data = new ENQUEUE_RESPONSE_DATA();
data.msgID = msg.MessageID; // set the response data msgID to the msg.messageID so that it can be Read back
data.Read(input);
msg.TimeStamp = data.timestamp;
}
} catch (Exception) {
ret = ErrorCode.EC_NETWORKERROR;
}
return ret;
}
/**
* <summary>
* Internal method which acknowledges the reception of data from a "Retrieve"
* operation.
* </summary>
*
* <param name="qhandle"> The queue being utilized</param>
* <param name="msg"> The message that was retrieved</param>
*
* <returns>The error response code from the server.</returns>
*
* <exception cref="Exception">In the case of a network error.</exception>
*/
ErrorCode ackRetrieveCursor(QueueHandle qhandle, QueueMessage msg)
{
RETRIEVE_ACK_PARAMS parms = new RETRIEVE_ACK_PARAMS();
parms.queueID = qhandle;
parms.msgID = msg.MessageID;
output.Write(Safmq.CMD_RETRIEVE_CURSOR_ACK);
parms.Write(output);
output.Flush();
return getResponseCode();
}
/**
* <summary>
* Retrieves the message identified by <c>id</c> in the message's
* recipt id, set prior to the message having been enqueued (See:
* <c>Enqueue(QueueMessage)</c>. The results are placed in the object
* <c>msg</c>.
* </summary>
*
* <remarks>
* <para>Note: Message responsders will typically place the message id of the original
* message in the recipt id of the message being returned. This round-trip
* message identification is provided by SAFMQ as a method for coordinated two-way
* communications.</para>
*
* <para>Note: Retrieved messages are removed from the queue.</para>
* </remarks>
*
* <param name="qhandle"> A handle to a queue previously opened by a call to OpenQueue(string)</param>
* <param name="retrievebody"> A flag indicating whether the body of the message should be retrieved</param>
* <param name="id"> The UUID of the message to be retrieved.</param>
* <param name="timeoutseconds">
* The number of seconds to wait before returning, a value of zero (0) will
* cause the method to return immediately if no messages are present on the queue,
* a value of (-1) will cause the method to wait until a message is placed on the queue.</param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>ErrorCode.EC_NOERROR</c>, otherwise
* errors such as but not limited to could occur: <br/>
* <table border="0" cellpadding="3" cellspacing="0">
* <tr><td><c>ErrorCode.EC_NETWORKERROR</c></td>
* <td>A networking error has occurred and the conneciton
* is nolonger valid.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOMOREMESSAGES</c></td>
* <td>The queue is empty and no more messages are
* available.
* </td></tr>
* <tr><td><c>ErrorCode.EC_ALREADYCLOSED</c></td>
* <td>The queue reference is not valid as it has
* been closed.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOTAUTHORIZED</c></td>
* <td>The user is not authorized to Read messages from this
* queue.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOTOPEN</c></td>
* <td>The queue specified has not been opened by this connection.
* </td></tr>
* <tr><td><c>ErrorCode.EC_TIMEDOUT</c></td>
* <td>The operation timed out before a message became available.
* </td></tr>
* </table>
* </returns>
*
* <seealso cref="Enqueue(QueueHandle, QueueMessage)"/>
* <seealso cref="OpenQueue(string, QueueHandle)"/>
*/
public ErrorCode RetrieveID(QueueHandle qhandle, bool retrievebody, UUID id, int timeoutseconds, QueueMessage msg)
{
ErrorCode ret = ErrorCode.EC_NOERROR;
RETRIEVE_ID_PEEK_ID_PARAMS parms = new RETRIEVE_ID_PEEK_ID_PARAMS();
parms.queueID = qhandle;
parms.retrievebody = (byte)(retrievebody?1:0);
parms.reciptID = id;
parms.timeoutseconds = timeoutseconds;
try {
output.Write(Safmq.CMD_RETRIEVE_ID);
parms.Write(output);output.Flush();
ret = getResponseCode();
if (ret == ErrorCode.EC_NOERROR) {
msg.Read(input,retrievebody);
ret = ackRetrieveCursor(qhandle,msg);
}
} catch (IOException) {
ret = ErrorCode.EC_NETWORKERROR;
}
return ret;
}
public void test_EnqueueWithRelay()
{
MQConnection con = null;
try {
con = connectToServer(address, null, null);
QueueMessage msg = new QueueMessage();
StreamWriter sw = new StreamWriter(msg.Stream);
sw.WriteLine(SPECIAL_MESSAGE);
sw.Close();
addAllQueues(con);
ErrorCode ec = con.EnqueueWithRelay(new Uri(addressString + "/" + TEST_QUEUE[1]), msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unble to EnqueueWithRelay:" + ec);
Thread.Sleep(100);
QueueHandle handle = new QueueHandle();
ec = con.OpenQueue(TEST_QUEUE[1], handle);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unble to OpenQueue:" + ec);
msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unble to Retrieve:" + ec);
string txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals(SPECIAL_MESSAGE), "Incorrect Message: " + txt);
ec = con.CloseQueue(handle);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unble to CloseQueue:" + ec);
} finally {
if (con != null)
con.Close();
}
}
/**
* <summary>
* Retrieves the message pointed to by <c>cursorID</c>. The results
* are placed in the object <c>msg</c>.
*
* <para>Note: Retrieved messages are removed from the queue.</para>
* </summary>
*
* <param name="retrievebody">
* A flag indicating whether the body of the message should be retrieved</param>
* <param name="cursorID"> The cursor indicating the current position in the queue to be read from</param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>Safmq.EC_NOERROR</c>, otherwise
* see MQConnection.Retrieve() for result codes.</returns>
* <seealso cref="MQConnection.RetrieveCursor(QueueHandle,bool,CursorHandle,QueueMessage)">MQConnection.Retrieve(QueueHandle,bool,int,QueueMessage)</seealso>
*/
public ErrorCode RetrieveCursor(bool retrievebody, CursorHandle cursorID, QueueMessage msg)
{
return con.RetrieveCursor(que,retrievebody,cursorID,msg);
}
public void test_OpenQueue_Enqueue_Retrieve_CloseQueue()
{
MQConnection con = null;
try {
con = connectToServer(address, null, null);
addAllGroups(con);
addAllUsers(con);
addAllQueues(con);
QueueHandle handle = new QueueHandle();
ErrorCode ec = con.OpenQueue(TEST_QUEUE[0], handle);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to open queue: " + TEST_QUEUE[0]);
sendMessages(con, handle, 5, 0);
for(int x=0;x<5;x++) {
QueueMessage msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to retrieve message: " + x);
StreamReader r = new StreamReader(msg.Stream);
string s = r.ReadLine();
Assert.IsTrue(int.Parse(s) == x, "Incorrect message retrieved: " + x);
}
ec = con.CloseQueue(handle);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to Close queue");
} finally {
if (con != null)
con.Close();
}
}
/**
* <summary>
* Retrieves the message identified by <c>id</c> in the message's
* recipt id, set prior to the message having been enqueued (See:
* <c>Enqueue(QueueMessage)</c>. The results are placed in the object
* <c>msg</c>.
* </summary>
*
* <remarks>
* <para>Note: Message responsders will typically place the message id of the original
* message in the recipt id of the message being returned. This round-trip
* message identification is provided by SAFMQ as a method for coordinated two-way
* communications.</para>
*
* <para>Note: Retrieved messages are removed from the queue.</para>
* </remarks>
*
* <param name="retrievebody">
* A flag indicating whether the body of the message should be retrieved</param>
* <param name="id"> The UUID of the message to be retrieved.</param>
* <param name="timeout">
* The number of seconds to wait before returning, a value of zero (0) will
* cause the method to return immediately if no messages are present on the queue,
* a value of (-1) will cause the method to wait until a message is placed on the queue.
* </param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>Safmq.EC_NOERROR</c>, otherwise
* see MQConnection.RetrieveID() for result codes.</returns>
*
* <seealso cref="MQConnection.RetrieveID(QueueHandle,bool,UUID,int,QueueMessage)">MQConnection.Retrieve(QueueHandle,bool,int,QueueMessage)</seealso>
* <seealso cref="Enqueue(QueueMessage)">Enqueue(QueueMessage)</seealso>
*/
public ErrorCode RetrieveID(bool retrievebody, UUID id, int timeout, QueueMessage msg)
{
return con.RetrieveID(que,retrievebody,id,timeout,msg);
}
public void test_Transactions()
{
MQConnection con = null;
try {
con = connectToServer(address, null, null);
addAllGroups(con);
addAllUsers(con);
addAllQueues(con);
QueueHandle handle = new QueueHandle();
ErrorCode ec = con.OpenQueue(TEST_QUEUE[0], handle);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to open queue: " + TEST_QUEUE[0]);
sendMessages(con, handle, 10, 0);
ec = con.BeginTransaction();
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to BeginTransaction:" + ec);
CursorHandle cur = new CursorHandle();
ec = con.OpenCursor(handle, cur);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to OpenCursor:" + ec);
ec = con.AdvanceCursor(handle, cur);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to AdvanceCursor:" + ec);
ec = con.AdvanceCursor(handle, cur);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to AdvanceCursor:" + ec);
QueueMessage msg = new QueueMessage();
ec = con.RetrieveCursor(handle, true, cur, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveCursor:" + ec);
string txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals("2"), "Incorrect Message: " + txt + " should be 2");
msg = new QueueMessage();
ec = con.RetrieveCursor(handle, true, cur, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveCursor:" + ec);
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals("3"), "Incorrect Message: " + txt + " should be 3");
msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveCursor:" + ec);
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(txt.Equals("0"), "Incorrect Message: " + txt + " should be 0");
int[] ids = { 1, 4, 5, 6, 7, 8, 9 };
for(int x=0;x<ids.Length;x++) {
msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveCursor:" + ec);
txt = (new StreamReader(msg.Stream)).ReadLine();
Console.WriteLine("txt: " + txt);
Assert.IsTrue(int.Parse(txt) == ids[x], "Incorrect Message: " + txt + " should be " + ids[x]);
}
ec = con.RollbackTransaction();
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RollbackTransaction:" + ec);
for(int x=0;x<8;x++) {
msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveCursor:" + ec);
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(int.Parse(txt) == x, "Incorrect Message: " + txt + " should be " + x);
}
ec = con.CommitTransaction();
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to CommitTransaction:" + ec);
for(int x=0;x<2;x++) {
msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveCursor:" + ec);
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(int.Parse(txt) == x + 8, "Incorrect Message: " + txt + " should be " + (x + 8));
}
ec = con.RollbackTransaction();
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RollbackTransaction:" + ec);
ec = con.EndTransaction();
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RollbackTransaction:" + ec);
for(int x=0;x<2;x++) {
msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to RetrieveCursor:" + ec);
txt = (new StreamReader(msg.Stream)).ReadLine();
Assert.IsTrue(int.Parse(txt) == x + 8, "Incorrect Message: " + txt + " should be " + (x + 8));
}
msg = new QueueMessage();
ec = con.Retrieve(handle, true, 0, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOMOREMESSAGES, "Able to RetrieveCursor:" + ec);
ec = con.CloseQueue(handle);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unble to CloseQueue:" + ec);
} finally {
if (con != null)
con.Close();
}
}
/**
* <summary>
* Places a message on the queue. The object <c>msg</c> must have
* been previously prepared before calling this method. Upon successfull sending
* of the message, the message id and message timestamp will be set by the server
* and may be retrieved by a call to <c>QueueMessage.getMessageID()</c>
* and <c>QueueMessage.getTimeStamp()</c> respectively.
* </summary>
*
* <remarks>
* <para>Note: Message responsders will typically place the message id of the original
* message in the recipt id of the message being returned. This round-trip
* message identification is provided by SAFMQ as a method for coordinated two-way
* communications.</para>
* </remarks>
*
* <param name="msg">The message to be placed on the queue</param>
* <returns>The results of a call to <c>MQConnection.Enqueue()</c></returns>
* <seealso cref="MQConnection.Enqueue(QueueHandle,QueueMessage)">MQConnection.Enqueue(QueueHandle,QueueMessage) for details on errors</seealso>
*/
public ErrorCode Enqueue(QueueMessage msg)
{
return(con.Enqueue(que, msg));
}
void sendMessages(MQConnection con, QueueHandle handle, int count, int idxStart)
{
QueueMessage msg;
ErrorCode ec;
for(int x=0;x<count;x++) {
msg = new QueueMessage();
StreamWriter w = new StreamWriter(msg.Stream);
w.WriteLine((x + idxStart));
w.Close();
ec = con.Enqueue(handle, msg);
Assert.IsTrue(ec == ErrorCode.EC_NOERROR, "Unable to send message: " + (x + idxStart) + " ec: " + ec);
}
}
/**
* <summary>
* Gathers the highest priority FIFO message present on the queue. The results
* are placed in the object <c>msg</c>. Any errors from the operation are
* returned on the stack. The message retrieved is <i>not</i> remvoed from the
* queue and is available for reading by other queue readers.
* </summary>
*
* <param name="qhandle"> A handle to a queue previously opened by a call to OpenQueue(string)</param>
* <param name="retrievebody"> A flag indicating whether the body of the message should be retrieved</param>
* <param name="timeoutseconds">The number of seconds to wait before returning, a value of zero (0) will
* cause the method to return immediately if no messages are present on the queue,
* a value of (-1) will cause the method to wait until a message is placed on the queue.
* </param>
* <param name="msg"> Receives the contents of the message.</param>
*
* <returns>Upon success a value of <c>ErrorCode.EC_NOERROR</c>, otherwise
* errors such as but not limited to could occur: <br/>
* <table border="0" cellpadding="3" cellspacing="0">
* <tr><td><c>ErrorCode.EC_NETWORKERROR</c></td>
* <td>A networking error has occurred and the conneciton
* is nolonger valid.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOMOREMESSAGES</c></td>
* <td>The queue is empty and no more messages are
* available.
* </td></tr>
* <tr><td><c>ErrorCode.EC_ALREADYCLOSED</c></td>
* <td>The queue reference is not valid as it has
* been closed.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOTAUTHORIZED</c></td>
* <td>The user is not authorized to Read messages from this
* queue.
* </td></tr>
* <tr><td><c>ErrorCode.EC_NOTOPEN</c></td>
* <td>The queue specified has not been opened by this connection.
* </td></tr>
* <tr><td><c>ErrorCode.EC_TIMEDOUT</c></td>
* <td>The operation timed out before a message became available.
* </td></tr>
* </table>
* </returns>
*
* <seealso cref="OpenQueue(string, QueueHandle)"/>
*/
public ErrorCode PeekFront(QueueHandle qhandle, bool retrievebody, int timeoutseconds, QueueMessage msg)
{
ErrorCode ret = ErrorCode.EC_NOERROR;
RETRIEVE_PEEK_FRONT_PARAMS parms = new RETRIEVE_PEEK_FRONT_PARAMS();
parms.queueID = qhandle;
parms.retrievebody = (byte)(retrievebody?1:0);
parms.timeoutseconds = timeoutseconds;
try {
output.Write(Safmq.CMD_PEEK_FRONT);
parms.Write(output);
output.Flush();
ret = getResponseCode();
if (ret == ErrorCode.EC_NOERROR)
msg.Read(input,retrievebody);
} catch (Exception) {
ret = ErrorCode.EC_NETWORKERROR;
}
return ret;
}
