Helper Counter

Jan Burse, created Sep 15. 2018
package example08;
import jekpro.tools.proxy.RuntimeWrap;
import java.io.IOException;
import java.io.Writer;
/**
* <p>Java code for the queue example.</p>
* <p>The Java counter.</p>
* <p/>
* Warranty & Liability
* To the extent permitted by applicable law and unless explicitly
* otherwise agreed upon, XLOG Technologies GmbH makes no warranties
* regarding the provided information. XLOG Technologies GmbH assumes
* no liability that any problems might be solved with the information
* provided by XLOG Technologies GmbH.
* <p/>
* Rights & License
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* and patent rights in particular - are the sole property of XLOG
* Technologies GmbH. If the company was not the originator of some
* excerpts, XLOG Technologies GmbH has at least obtained the right to
* reproduce, change and translate the information.
* <p/>
* Reproduction is restricted to the whole unaltered document. Reproduction
* of the information is only allowed for non-commercial uses. Selling,
* giving away or letting of the execution of the library is prohibited.
* The library can be distributed as part of your applications and libraries
* for execution provided this comment remains unchanged.
* <p/>
* Restrictions
* Only to be distributed with programs that add significant and primary
* functionality to the library. Not to be distributed with additional
* software intended to replace any components of the library.
* <p/>
* Trademarks
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*/
public final class Counter implements Runnable {
private String name;
private final Queue queue;
private final Writer writer;
private int count;
/**
* <p>Create a counter task.</p>
*
* @param n The name.
* @param q The queue.
* @param w The writer.
*/
public Counter(String n, Queue q, Writer w) {
name = n;
queue = q;
writer = w;
}
/**
* <p>Execute the counter task.</p>
*/
public void run() {
try {
long time = System.currentTimeMillis();
StringBuilder buf = new StringBuilder();
buf.append("Process ");
buf.append(name);
buf.append(": ");
buf.append(count);
buf.append('\n');
writer.write(buf.toString());
writer.flush();
count++;
if (count < 10)
queue.post(this, time + 1000);
} catch (IOException x) {
throw new RuntimeWrap(x);
}
}
}

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