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This commit is contained in:
Anshul BANSAL 2020-02-11 18:02:53 +02:00
parent 8f01547516
commit b907d2cd6e
1 changed files with 43 additions and 19 deletions
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46
jcabi/src/main/java/com/baeldung/jcabi/JcabiAspectJ.java
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@ -1,6 +1,14 @@
package com.baeldung.jcabi; package com.baeldung.jcabi;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
import java.util.concurrent.CompletableFuture; import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Future; import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeUnit;
@ -9,7 +17,6 @@ import com.jcabi.aspects.Async;
import com.jcabi.aspects.Cacheable; import com.jcabi.aspects.Cacheable;
import com.jcabi.aspects.LogExceptions; import com.jcabi.aspects.LogExceptions;
import com.jcabi.aspects.Loggable; import com.jcabi.aspects.Loggable;
import com.jcabi.aspects.Parallel;
import com.jcabi.aspects.Quietly; import com.jcabi.aspects.Quietly;
import com.jcabi.aspects.RetryOnFailure; import com.jcabi.aspects.RetryOnFailure;
import com.jcabi.aspects.UnitedThrow; import com.jcabi.aspects.UnitedThrow;
@ -21,9 +28,9 @@ public class JcabiAspectJ {
displayFactorial(10); displayFactorial(10);
getFactorial(10).get(); getFactorial(10).get();
Double number = cacheRandomNumber(); String result = cacheExchangeRates();
if (number != cacheRandomNumber()) { if (result != cacheExchangeRates()) {
System.out.println(number); System.out.println(result);
} }
divideByZero(); divideByZero();
@ -32,7 +39,12 @@ public class JcabiAspectJ {
} }
divideByZeroQuietly(); divideByZeroQuietly();
parallelExecution(); try {
processFile();
} catch(Exception e) {
e.printStackTrace();
}
} }
@Loggable @Loggable
@ -64,11 +76,19 @@ public class JcabiAspectJ {
@Loggable @Loggable
@Cacheable(lifetime = 2, unit = TimeUnit.SECONDS) @Cacheable(lifetime = 2, unit = TimeUnit.SECONDS)
public static Double cacheRandomNumber() { public static String cacheExchangeRates() {
return Math.random(); String result = null;
try {
URL exchangeRateUrl = new URL("https://api.exchangeratesapi.io/latest");
URLConnection con = exchangeRateUrl.openConnection();
BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
result = in.readLine();
} catch (IOException e) {
e.printStackTrace();
}
return result;
} }
@UnitedThrow(IllegalStateException.class)
@LogExceptions @LogExceptions
public static void divideByZero() { public static void divideByZero() {
int x = 1/0; int x = 1/0;
@ -80,9 +100,13 @@ public class JcabiAspectJ {
int x = 1/0; int x = 1/0;
} }
@Parallel(threads = 4) @UnitedThrow(IllegalStateException.class)
public static void parallelExecution() { public static void processFile() throws IOException, InterruptedException {
System.out.println("Calling Parallel..."); BufferedReader reader = new BufferedReader(new FileReader("baeldung.txt"));
reader.readLine();
Thread thread = new Thread();
thread.wait(2000);
} }
} }