com.azaptree.services.command.impl.CommandExcecutionMetric.java Source code

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Here is the source code for com.azaptree.services.command.impl.CommandExcecutionMetric.java

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package com.azaptree.services.command.impl;

/*
 * #%L
 * AZAPTREE-COMMAND-SERVICE
 * %%
 * Copyright (C) 2012 AZAPTREE.COM
 * %%
 * 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.
 * #L%
 */

import org.apache.commons.lang3.exception.ExceptionUtils;
import org.apache.commons.lang3.time.DateFormatUtils;
import org.springframework.util.Assert;

import com.azaptree.services.command.CommandKey;

/**
 * 
 * Used to record command execution metrics.
 * 
 * @author Alfio Zappala
 * 
 */
public class CommandExcecutionMetric {
    private final CommandKey key;
    private final long executionTimeStart;
    private long executionTimeEnd;
    private boolean success = true;
    private Throwable throwable;

    public CommandExcecutionMetric(final CommandKey key) {
        Assert.notNull(key, "key is required");
        this.key = key;
        executionTimeStart = System.currentTimeMillis();
    }

    public void failed() {
        executionTimeEnd = System.currentTimeMillis();
        success = false;
    }

    /**
     * 
     * @param executionTimeEnd
     * @param exception
     */
    public void failed(final Throwable exception) {
        Assert.notNull(exception);
        failed();
        throwable = exception;
    }

    public long getExecutionTimeEnd() {
        return executionTimeEnd;
    }

    public long getExecutionTimeStart() {
        return executionTimeStart;
    }

    public CommandKey getKey() {
        return key;
    }

    public Throwable getThrowable() {
        return throwable;
    }

    public boolean isSuccess() {
        return success;
    }

    public void succeeded() {
        executionTimeEnd = System.currentTimeMillis();
    }

    @Override
    public String toString() {
        final StringBuilder sb = new StringBuilder(256);
        sb.append("CommandExcecutionMetric [key=");
        key.toString(sb);
        sb.append(", executionTimeStart=")
                .append(DateFormatUtils.ISO_DATETIME_TIME_ZONE_FORMAT.format(executionTimeStart));
        sb.append(", executionTime=").append(executionTimeEnd - executionTimeStart).append(" msec, success=")
                .append(success);
        if (throwable != null) {
            sb.append(", throwable=").append(ExceptionUtils.getStackTrace(throwable));
        }
        sb.append(']');

        return sb.toString();
    }

}