I want to find length of given string with out using pub.string.length (built in function) in web methods .
Ex:If we give name "abcdef" i want result like 6 .
You could write your own java service, but that sounds redundant to me.
Here's an (as yet untested) code sample:
public static final void checkStringSize(IData pipeline)
throws ServiceException {
// pipeline
IDataCursor pipelineCursor = pipeline.getCursor();
String inputString = IDataUtil.getString( pipelineCursor, "inputString" );
pipelineCursor.destroy();
long length = -1;
length = inputString.length();
// pipeline
IDataCursor pipelineCursor_1 = pipeline.getCursor();
IDataUtil.put( pipelineCursor_1, "length", ""+length );
pipelineCursor_1.destroy();
}
You could manually count the length of the string by using pub.string:substring until it gets an error.
I wouldn't recommend this - it's inelegant, possibly quite slow and it still uses a function from pub.string, which you appear to be avoiding.
Anyway, here's a way to do it, click the link to see the image.
webMethods code sample - https://i.stack.imgur.com/FE9oU.jpg
Just make sure the input string cannot be null - otherwise the substring won't throw an error and it will have an infinite loop.
Related
I am building a device for my research team. To briefly describe it, this device uses a motor and load sensor connected to an Arduino to apply a rotational force to a corn stalk and record the resistance of the stalk. We are in the process of building Bluetooth into the device. We are using this BT module.
We have a BLE GATT Service with 2 characteristics for storing DATA and 1 for holding the command which is an integer that will be read by the device and acted on. Reading the command characteristic is where we encounter our problem.
void get_input(){
uint16_t bufSize = 15;
char inputBuffer[bufSize];
bleParse = Adafruit_ATParser(); // Throws error: bleParse was not declared in this scope
bleParse.atcommandStrReply("AT+GATTCHAR=3",&inputBuffer,bufSize,1000);
Serial.print("input:");
Serial.println(inputBuffer);
}
The functions I am trying to use are found in the library for the module in Adarfruit_ATParser.cpp
/******************************************************************************/
/*!
#brief Constructor
*/
/******************************************************************************/
Adafruit_ATParser::Adafruit_ATParser(void)
{
_mode = BLUEFRUIT_MODE_COMMAND;
_verbose = false;
}
******************************************************************************/
/*!
#brief Send an AT command and get multiline string response into
user-provided buffer.
#param[in] cmd Command
#param[in] buf Provided buffer
#param[in] bufsize buffer size
#param[in] timeout timeout in milliseconds
*/
/******************************************************************************/
uint16_t Adafruit_ATParser::atcommandStrReply(const char cmd[], char* buf, uint16_t bufsize, uint16_t timeout)
{
uint16_t result_bytes;
uint8_t current_mode = _mode;
// switch mode if necessary to execute command
if ( current_mode == BLUEFRUIT_MODE_DATA ) setMode(BLUEFRUIT_MODE_COMMAND);
// Execute command with parameter and get response
println(cmd);
result_bytes = this->readline(buf, bufsize, timeout, true);
// switch back if necessary
if ( current_mode == BLUEFRUIT_MODE_DATA ) setMode(BLUEFRUIT_MODE_DATA);
return result_bytes;
}
None of the examples in the library use this. They all create their own parsers. For example, the neopixel_picker example sketch has a file called packetParser.cpp which I believe retrieves data from the BT module for that specific sketch, but it never includes or uses Adafruit_ATParser.. There are no examples of this constructor anywhere and I cannot figure out how to use it. I have tried these ways:
bleParse = Adafruit_ATParser();
Adafruit_ATParser bleParse();
Adafruit_ATParser();
ble.Adafruit_ATParser bleParse();
note: ble is an object that signifies a Serial connection between arduino and BT created with:
SoftwareSerial bluefruitSS = SoftwareSerial(BLUEFRUIT_SWUART_TXD_PIN, BLUEFRUIT_SWUART_RXD_PIN);
Adafruit_BluefruitLE_UART ble(bluefruitSS, BLUEFRUIT_UART_MODE_PIN,BLUEFRUIT_UART_CTS_PIN, BLUEFRUIT_UART_RTS_PIN);
Can anyone give me a clue on how to use the Adafruit_ATParser() constructor? Also, if the constructor has no reference to the ble object, how does it pass AT commands to the BT module?
I know this is a big ask, I appreciate any input you can give me.
Like this
Adafruit_ATParser bleParse;
You were closest with this one Adafruit_ATParser bleParse();. This is a common beginner mistake because it looks right. Unfortunately it declares a function bleParse which takes no arguments and returns a Adafruit_ATParser object.
I can't answer the second question.
EDIT
I've taken the time to have a look at the code. This is what I found
class Adafruit_BluefruitLE_UART : public Adafruit_BLE
{
and
class Adafruit_BLE : public Adafruit_ATParser
{
what this means is that the Adafruit_BluefruitLE_UART class is derived from the Adafruit_BLE class which in turn is derived from the Adafruit_ATParser class. Derivation means that any public methods in Adafruit_BLE can also be used on a Adafruit_BluefruitLE_UART object. You already have an Adafruit_BluefruitLE_UART object (you called it ble) so you can just use the method you want to use on that object.
SoftwareSerial bluefruitSS = SoftwareSerial(BLUEFRUIT_SWUART_TXD_PIN, BLUEFRUIT_SWUART_RXD_PIN);
Adafruit_BluefruitLE_UART ble(bluefruitSS, BLUEFRUIT_UART_MODE_PIN,BLUEFRUIT_UART_CTS_PIN, BLUEFRUIT_UART_RTS_PIN);
ble.atcommandStrReply( ... );
I am debugging an old application, where the WndProc is overridden. There I got a message with ID=0xC1B0 which means, that this is a system wide unique message according to this msdn article.
As described by microsoft for the RegisterWindowMessage(...), the same string s the paramter results in the same message-id. So there is an unique link between the message-id and the parameter.
My question is now: Is there a possibility to get the parameter, if I have the message-id? If yes, this might help me to find the source of the message.
As found in the this blog there is no direct way, but the function GetClipboardFormatName(...) gives a work around for the problem.
I used it in the following way:
[DllImport("user32.dll")]
static extern int GetClipboardFormatName(int format, StringBuilder lpszFormatName, int cchMaxCount);
public static string GetMessageName(int msg)
{
var sb = new StringBuilder(256);
GetClipboardFormatName(msg, sb, sb.Capacity);
return sb.ToString();
}
Setting up an application which does some reporting on call logs using groovy. I want to use mysql is the background and upload the data to the database externally (i.e. a script that runs every midnight which loads todays calls)
I have gotten the connection between mysql and groovy (somewhat) working, it clearly validates the database even if I cant extract or store any data in it.
However, one of the values in the external log is a duration, normally in the format "00:05:42" (%H:%m:%s), how ever, I am having some issues how to store it in mysql in a way that groovy is happy with. Tried date first, but that gives me the issue that it will expect a calendar date as part of it.
Then I started trying to use TimeDuration from grovy.time.*, but this seems to store things as a tinyblob. So, is there a Time version that works in mysql and groovy likes (tried a number of different ones, and while mysql seems happy enough, groovy don't quite seem to know what to do about it.
The domain at the moment looks like this:
import groovy.time.*
import java.sql.Time
import java.sql.Timestamp
class Calls {
Time CallTime
TimeDuration Length
int Line
String SourceNr
String Direction
String DialNr
String Phone
String User
static constraints = {
}
static mapping = {
version false
}
// id generator: 'hilo',
// params: [table: 'hi_value', column: 'next_value', max_lo: 100]
//id composite: ['DateTime', 'SourceNr','DialNr']
}
If you cannot find a duration type that can parse the format you describe and that is stored correctly in MySQL, I suggest using a simple long value in seconds and doing the conversion to/from string in the getter and setter.
(This is just some quick code, do some proper tests on boundary cases before using it, plus maybe some input validation.)
class Calls {
long length
/** Parse a string with format hhh:mm:ss into a value in seconds. */
public void setLength(String s) {
length = s.split(':').collect(Integer.&parseInt).inject {
a, b -> a * 60 + b
}
}
/** Format a number in seconds into a hhh:mm:ss string. */
public String getLength() {
def a = [length]
for (i in [1, 2]) {
a << (long)(a[-1] / 60)
a[-2] %= 60
}
String.format("%02d:%02d:%02d", *a.reverse())
}
}
I have a Red5 service function that receives a single string as a parameter, and another function that takes no parameters, like the code below:
public class AService
{
private String someName;
public void setName(String aName)
{
someName = aName;
}
.
.
public String makeMessage()
{
return("Hello, "+someName);
}
.
.
other functions
}
I also have an ActionScript function that calls the service function, using the dynamic parameter:
public class Connector
{
private var netConn: NetConnection;
public function invokeCall(theFunc:String,...theParams): void
{
var resp:Responder = new Responder(checkResult);
netConn.call(theFunc,resp,theParams);
}
.
.
}
I am aware that the "...theParams" is actually an array of parameter objects. I also know that the NetConnector class' call() method uses that parameter object array. Unfortunately, when I do an invokeCall() on my service's makeMessage() method (without putting in a parameter) like so:
invokeCall("AService.makeMethod");
I get a function nonexistent message from Red5. The only way I can make it work is to create two invoke methods, one with parameters and one without, and call that function without parameters.
Furthermore, calling my setName() function, like so:
invokeCallwithPrams("AService.setName","factor3");
doesn't seem to work unless I change the signature of my service function:
public class AService
{
private String someName;
public void setName(String[] aName)
{
someName = aName[0];
}
.
.
public String makeMessage()
{
return("Hello, "+someName);
}
.
.
other functions
}
which I don't mind (even though the Red5 documentation indicates that I shouldn't have to treat the parameter as an array), except that when I pass the string "factor3" into the NetConnection class' call() method, somehow it becomes "[factor3]" in setName()!
Obviously, something is screwy here, but I haven't been able to figure it out.
I am using Red5 Version 1.0.1 and my Actionscript is Version 3.
Can anyone explain to me what is going on and (more importantly) how to fix this???
If so, please advise...
UPDATE: The weirdness continues
I did a test in which I changed the parameter of the function I used to set up and invoke the NetConnection class' call() method. Instead of passing it a "...theParams", I changed it to theParams:String, like so:
public function invokeCall(theFunc:String,theParams:String): void
{
var resp:Responder = new Responder(checkResult);
netConn.call(theFunc,resp,theParams);
}
Interestingly, the brackets that appear in my service method setName() go away!
Whatever this problem is, it has something to do with the dynamic parameters in Actionscript. I suspect that I have found a bug in Actionscript 3 that does not allow it to properly handle dynamic parameters that are passed to a method from another method.
Has anyone else seen this problem? Is there any solution? The dynamic parameters are supposed to allow anyone to add parameters as necessary and make them any object that is necessary. Unfortunately, it doesn't look like you can use dynamic parameters passed from another method without them being screwed up.
This looks like a serious bug in Actionscript. Am I correct?
Someone please advise...
I found the solution. It is not a bug in Actionscript, it is a bit of strangeness in the language.
The basic information about the solution can be found here:
AS3 variable length argument expand to call another function with var length args
Based on what is there, I needed to do the following in the method I am using for invokeCallwithParams:
.
.
var conn:Connector = new Connector();
private function invokeCaller(fName:String,...cParams)
{
cParams.unshift(fName);
conn.invokeCall.apply(conn,cParams);
}
This eliminates the unnecessary brackets passed into my setName() service function, meaning that I can pass dynamic, variable length parameters from one method to another...
I have a unit test where I am mocking java.net.URI class. Further, I am creating a jMockit NonStrictExpectation where I am expecting invocation of URI.getPath() and returning a particular string.
The code being tested invokes URI.getPath() twice, where I need to send a different string each time.
Here is my actual method under test:
public void validateResource() {
// some code
URI uri = new URI(link1.getHref());
String path1 = uri.getPath();
// some more code
uri = new URI(link2.getHref());
String path2 = uri.getPath();
}
Here is the unit test code:
#Mocked URI uri;
#Test
public void testValidateResource() {
new NonStrictExpectations() {
{
// for the first invocation
uri.getPath(); returns("/resourceGroup/1");
// for the second invocation [was hoping this would work]
uri.getPath(); returns("/resource/2");
}
};
myObject.validateResource();
}
Now, I want "/resource/2" to be returned from my expectation when the URI.getPath() is called second time. But it always hits the first expectation and returns "/recourceGroup/1". This is my problem.
How do I make it happen? I can't really use StrictExpectations due to a number of reasons, and will have to stick with NonStrictExpectations.
Seems like you just need to list uri.getPath() once, and use the varargs version of returns...something like this:
uri.getPath(); returns("/resourceGroup/1", "/resourceGroup/2");
This is according to the documentation, anyway...I have not tested it myself.
Multiple consecutive values to return can be recorded for an expectation, by calling the returns(v1, v2, ...) method. Alternatively, the same can be achieved by assigning the result field with a list or array containing the consecutive values.