io.polaris.core.err.MultipleException Maven / Gradle / Ivy
package io.polaris.core.err;
import io.polaris.core.collection.Iterables;
import java.util.Collections;
import java.util.List;
/**
* @author Qt
* @since 1.8
*/
public class MultipleException extends IllegalArgumentException {
private static final long serialVersionUID = 1L;
private static final String EOL = System.getProperty("line.separator");
private final List failures;
public MultipleException(String message, List failures) {
super(message);
this.failures = failures == null ? Collections.emptyList() : failures;
}
public MultipleException(String message, Throwable... failures) {
super(message);
this.failures = failures == null ? Collections.emptyList() : Iterables.asList(failures);
}
public MultipleException(String message, Iterable failures) {
super(message);
this.failures = failures == null ? Collections.emptyList() : Iterables.asList(failures);
}
private static String nullSafeMessage(Throwable failure) {
String str = failure.getMessage();
if ((str == null || str.trim().length() == 0)) {
return failure.getClass().getName() + ": ";
}
return failure.getClass().getName() + ": " + failure.getMessage();
}
@Override
public String getMessage() {
int failureCount = this.failures.size();
String heading = super.getMessage();
if (failureCount == 0) {
return heading;
}
StringBuilder builder = new StringBuilder(heading)
.append(" (")
.append(failureCount).append(" ")
.append(failureCount == 1 ? "failure" : "failures")
.append(")")
.append(EOL);
int lastIndex = failureCount - 1;
for (Throwable failure : this.failures.subList(0, lastIndex)) {
builder.append("\t").append(nullSafeMessage(failure)).append(EOL);
}
builder.append('\t').append(nullSafeMessage(this.failures.get(lastIndex)));
return builder.toString();
}
public List getFailures() {
return Collections.unmodifiableList(this.failures);
}
public boolean hasFailures() {
return !this.failures.isEmpty();
}
}