com.proofpoint.launcher.AlreadyRunningError Maven / Gradle / Ivy

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/*
 * Copyright 2013 Proofpoint, Inc.
 *
 * 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 com.proofpoint.launcher;

public class AlreadyRunningError extends Throwable
{
    private final int pid;

    public AlreadyRunningError(int pid)
    {
        this.pid = pid;
    }

    @Override
    public String getMessage()
    {
        StringBuilder msg = new StringBuilder("Already running");
        if (pid != 0) {
            msg.append(" as ").append(pid);
        }
        return msg.toString();
    }
}