81 lines
1.7 KiB
Java
81 lines
1.7 KiB
Java
package net.filebot.util;
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import static java.util.Arrays.*;
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import java.io.PrintWriter;
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import java.io.StringWriter;
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public final class ExceptionUtilities {
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public static <T extends Throwable> T shiftStackTrace(T t, int offset) {
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StackTraceElement[] stackTrace = t.getStackTrace();
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if (offset < stackTrace.length) {
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t.setStackTrace(copyOfRange(stackTrace, offset, stackTrace.length));
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}
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return t;
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}
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public static Throwable getRootCause(Throwable t) {
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while (t.getCause() != null) {
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t = t.getCause();
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}
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return t;
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}
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public static <T extends Throwable> T findCause(Throwable t, Class<T> type) {
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while (t != null) {
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if (type.isInstance(t))
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return type.cast(t);
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t = t.getCause();
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}
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return null;
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}
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public static String getRootCauseMessage(Throwable t) {
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return getMessage(getRootCause(t));
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}
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public static String getMessage(Throwable t) {
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String message = t.getMessage();
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if (message == null || message.isEmpty()) {
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message = t.toString();
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}
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return message;
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}
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public static String getStackTrace(Throwable t) {
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StringWriter buffer = new StringWriter();
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t.printStackTrace(new PrintWriter(buffer, true));
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return buffer.getBuffer().toString();
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}
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public static <T extends Throwable> T wrap(Throwable t, Class<T> type) {
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if (type.isInstance(t)) {
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return type.cast(t);
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}
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try {
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return type.getConstructor(Throwable.class).newInstance(t);
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} catch (Exception e) {
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throw new IllegalArgumentException(e);
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}
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}
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public static RuntimeException asRuntimeException(Throwable t) {
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return wrap(t, RuntimeException.class);
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}
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/**
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* Dummy constructor to prevent instantiation.
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*/
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private ExceptionUtilities() {
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throw new UnsupportedOperationException();
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}
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}
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