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Java example source code file (ExceptionInfo.java)

This example Java source code file (ExceptionInfo.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

additional, exceptioninfo, iexceptioninfo, illegalargumentexception, ipersistentmap, runtimeexception, string, throwable

The ExceptionInfo.java Java example source code

/**
 * Copyright (c) Rich Hickey. All rights reserved.
 * The use and distribution terms for this software are covered by the
 * Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
 * which can be found in the file epl-v10.html at the root of this distribution.
 * By using this software in any fashion, you are agreeing to be bound by
 * the terms of this license.
 * You must not remove this notice, or any other, from this software.
 */

package clojure.lang;

/**
 * Exception that carries data (a map) as additional payload. Clojure programs that need
 * richer semantics for exceptions should use this in lieu of defining project-specific
 * exception classes.
 */
public class ExceptionInfo extends RuntimeException implements IExceptionInfo {
    public final IPersistentMap data;

    public ExceptionInfo(String s, IPersistentMap data) {
        this(s, data, null);
    }

    public ExceptionInfo(String s, IPersistentMap data, Throwable throwable) {
        // null cause is equivalent to not passing a cause
        super(s, throwable);
        if (data != null) {
            this.data = data;
        }  else {
            throw new IllegalArgumentException("Additional data must be non-nil.");
        }
    }

    public IPersistentMap getData() {
        return data;
    }

    public String toString() {
        return "clojure.lang.ExceptionInfo: " + getMessage() + " " + data.toString();
    }
}

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