Last active
November 17, 2015 09:26
-
-
Save VenkataRaju/07b32a4911e8d06ae9e5 to your computer and use it in GitHub Desktop.
Check if any Throwable matches the Predicate in Throwable chain
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package test; | |
import java.io.IOException; | |
import java.util.function.Predicate; | |
public class AnyThrowableMatchesPredicateInThrowableChain | |
{ | |
public static void main(String[] args) throws IOException | |
{ | |
Throwable throwable = new Throwable("sdsdf"); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable = new Throwable("Helldo", throwable); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable = new Throwable("Helldo", throwable); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable = new Throwable("Helldo", throwable); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable = new Throwable("Helldo", throwable); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable = new Throwable("Helldo", throwable); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable = new Throwable("Hellsos", throwable); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable.addSuppressed(new Throwable("Hesdfllo")); | |
throwable.addSuppressed(new Throwable("Hellso")); | |
System.out.println(anyMatch(throwable, t -> t.getMessage().contains("Hello"))); // false | |
throwable.addSuppressed(new Throwable("Hello")); | |
System.out.println(anyMatch(throwable, t -> t.getMessage().contains("Hello"))); // true | |
} | |
/** | |
* Returns {@code true} if {@code t} or its cause or t's supresses exceptions, | |
* recursively in the whole chain any {@linkplain Throwable} maches the given | |
* {@code predicate | |
*/ | |
public static boolean anyMatch(Throwable t, Predicate<Throwable> predicate) | |
{ | |
Throwable cause; | |
if (predicate.test(t) || ((cause = t.getCause()) != null) && anyMatch(cause, predicate)) | |
return true; | |
for (Throwable supressed : t.getSuppressed()) | |
if (anyMatch(supressed, predicate)) | |
return true; | |
return false; | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment