001/*
002 * ====================================================================
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *   http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing,
014 * software distributed under the License is distributed on an
015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016 * KIND, either express or implied.  See the License for the
017 * specific language governing permissions and limitations
018 * under the License.
019 * ====================================================================
020 *
021 * This software consists of voluntary contributions made by many
022 * individuals on behalf of the Apache Software Foundation.  For more
023 * information on the Apache Software Foundation, please see
024 * <http://www.apache.org/>.
025 *
026 */
027
028package org.apache.http.impl.nio.reactor;
029
030import org.apache.http.annotation.ThreadingBehavior;
031import org.apache.http.annotation.Contract;
032
033import java.util.Date;
034
035/**
036 * A {@link Throwable} instance along with a time stamp.
037 *
038 * @since 4.0
039 */
040@Contract(threading = ThreadingBehavior.IMMUTABLE)
041public class ExceptionEvent {
042
043    private final Throwable ex;
044    private final long time;
045
046    public ExceptionEvent(final Throwable ex, final Date timestamp) {
047        super();
048        this.ex = ex;
049        if (timestamp != null) {
050            this.time = timestamp.getTime();
051        } else {
052            this.time = 0;
053        }
054    }
055
056    public ExceptionEvent(final Exception ex) {
057        this(ex, new Date());
058    }
059
060    public Throwable getCause() {
061        return ex;
062    }
063
064    public Date getTimestamp() {
065        return new Date(this.time);
066    }
067
068    @Override
069    public String toString() {
070        final StringBuilder buffer = new StringBuilder();
071        buffer.append(new Date(this.time));
072        buffer.append(" ");
073        buffer.append(this.ex);
074        return buffer.toString();
075    }
076
077}