This wrapper lets you interact with Clockwork without the hassle of having to create any XML or make HTTP calls.

Clockwork is a SMS API from Mediaburst. It provides an easy, solid SMS API with wrappers, plugins and integrations to cover just about any requirement.

• A Clockwork account
• Java SE 5 or above

If you're using Java SE 5 there are some additional dependencies for the Java XML bindings, these can be found in lib/. To run the system/unit tests you need the JUnit library, which is also available in lib/.

Clockwork SMS is available via Maven and can be added as a dependency as follows:

    <dependency>
      <groupId>com.clockworksms</groupId>
      <artifactId>clockwork</artifactId>
      <version>1.x.x</version>
      <scope>compile</scope>
   </dependency>

If you want to compile it yourself, here's how:

$ git clone [email protected]:mediaburst/clockwork-java.git
$ cd clockwork-java
$ ant dist

Add a reference to clockwork-*.jar and import the com.clockworksms classes

import com.clockworksms.*;

ClockWorkSmsService clockWorkSmsService = new ClockWorkSmsService(API_KEY);  //Be careful not to post your API Keys to public repositories 
SMS sms = new SMS(TO, MESSAGE);			
ClockworkSmsResult result = clockWorkSmsService.send(sms);

We recommend you use batch sizes of 500 messages or fewer. By limiting the batch size it prevents any timeouts when sending.

List<SMS> messages = new ArrayList<SMS>();
messages.add( new SMS(TO, MESSAGE) );
messages.add( new SMS(ANOTHER_TO, MESSAGE) );
		
ClockWorkSmsService clockWorkSmsService = new ClockWorkSmsService(API_KEY);  //Be careful not to post your API Keys to public repositories 
List<ClockworkSmsResult> results = clockWorkSmsService.send(messages);

The responses come back as ClockworkSmsResult objects, these contain the unique Clockwork message ID, whether the message worked (success), and the original SMS so you can update your database.

If you send multiple SMS messages in a single send, you'll get back a List of ClockworkSMSResult objects, one per SMS.

If a message fails, the reason for failure will be set in errorCode and errorMessage.

Check how many SMS credits you currently have available. This returns a Long.

ClockWorkSmsService clockWorkSmsService = new ClockWorkSmsService(API_KEY);  //Be careful not to post your API Keys to public repositories 
Long credit = clockWorkSmsService.checkCredit();

The Clockwork wrapper will throw a ClockworkException if the entire call failed.

try {
	ClockWorkSmsService clockWorkSmsService = new ClockWorkSmsService(INVALID_API_KEY);
	clockWorkSmsService.checkCredit();
} catch (ClockworkException e) {
	// Handle the exception
}

This class has a few additional features that some users may find useful, if these are not set your account defaults will be used.

• from [string]

  The from address displayed on a phone when they receive a message

• longMessage [boolean]

  Enable long SMS. A standard text can contain 160 characters, a long SMS supports up to 459.

• truncateMessage [nullable boolean]

  Truncate the message payload if it is too long, if this is set to false, the message will fail if it is too long.

• invalidCharacterAction [InvalidCharacterActionEnum]

  What to do if the message contains an invalid character. Possible values are

  • AccountDefault - Perform your account's default action
  • Error - Fail the message
  • Remove - Remove the invalid characters then send
  • Replace - Replace some common invalid characters such as replacing curved quotes with straight quotes

Options set on the API object will apply to all SMS messages unless specifically overridden.

In this example both messages will be sent from Clockwork:

List<SMS> messages = new ArrayList<SMS>();
		
SMS sms1 = new SMS();
messages.add( sms1 );
		
SMS sms2 = new SMS();
messages.add( sms1 );

ClockWorkSmsService clockWorkSmsService = new ClockWorkSmsService(API_KEY);
clockWorkSmsService.setFrom("Clockwork");

List<ClockworkSmsResult> results = clockWorkSmsService.send(messages);

Set option values individually on each message.

In this example, one message will be from Clockwork and the other from 84433:

List<SMS> messages = new ArrayList<SMS>();
		
SMS sms1 = new SMS();
sms1.setFrom( "Clockwork" );
messages.add( sms1 );
		
SMS sms2 = new SMS();
sms1.setFrom( "84433" );
messages.add( sms1 );
		
ClockWorkSmsService clockWorkSmsService = new ClockWorkSmsService(API_KEY);
List<ClockworkSmsResult> results = clockWorkSmsService.send(messages);

We use JUnit as the test framework via Ant.

To run the tests you'll need to add your API key to src/test/java/com/clockworksms/SmsServiceSystemTest.java and run ant test from the root of the project.

This project is licensed under the ISC open-source license.

A copy of this license can be found in License.txt.

If you have any feedback on this wrapper drop us an email to [email protected].

The project is hosted on GitHub at https://github.com/mediaburst/clockwork-java. If you would like to contribute a bug fix or improvement please fork the project and submit a pull request.