org.databene.commons.Escalation Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of databene-commons Show documentation

'databene commons' is an open source Java library by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

The newest version!

/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.databene.commons;

import org.databene.commons.converter.ToStringConverter;

/**
 * Helper class for managing escalations.
 * @author Volker Bergmann
 * @since 0.2.04
 */
public class Escalation {
    
    public final String message;
    public final Object originator;
    public final Object cause;
    
    public Escalation(String message, Object originator, Object cause) {
        super();
        Assert.notNull(message, "message");
        this.message = message;
        this.originator = originator;
        this.cause = cause;
    }
    
    @Override
    public String toString() {
        StringBuilder builder = new StringBuilder();
        if (originator != null)
            builder.append(originator).append(": ");
        builder.append(message);
        if (cause != null)
            builder.append(": ").append(ToStringConverter.convert(cause, ""));
        return builder.toString();
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((message == null) ? 0 : message.hashCode());
        result = prime * result
                + ((originator == null) ? 0 : originator.hashCode());
        return result;
    }

    /**
     * Two Escalations are considered equal if originator and message are the same.
     */
    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        final Escalation other = (Escalation) obj;
        if (message == null) {
            if (other.message != null)
                return false;
        } else if (!message.equals(other.message))
            return false;
        if (originator == null) {
            if (other.originator != null)
                return false;
        } else if (!originator.equals(other.originator))
            return false;
        return true;
    }

    
}