com.zxy.commons.hystrix.HystrixAutoConfigureCondition.java Source code

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Here is the source code for com.zxy.commons.hystrix.HystrixAutoConfigureCondition.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.zxy.commons.hystrix;

import org.apache.commons.lang.StringUtils;
import org.springframework.context.annotation.Condition;
import org.springframework.context.annotation.ConditionContext;
import org.springframework.core.type.AnnotatedTypeMetadata;

import com.netflix.hystrix.Hystrix;

/** 
 * HystrixAutoConfigureCondition
 * 
 * <p>
 * <a href="HystrixAutoConfigureCondition.java"><i>View Source</i></a>
 * 
 * @author zhaoxunyong@qq.com
 * @version 1.0
 * @since 1.0 
*/
public class HystrixAutoConfigureCondition implements Condition {

    @Override
    public boolean matches(ConditionContext context, AnnotatedTypeMetadata metadata) {
        String enabled = context.getEnvironment().getProperty("hystrix.enabled");
        if (StringUtils.isNotBlank(enabled) && "false".equalsIgnoreCase(enabled)) {
            return false;
        }
        try {
            // ?jar?, ?, ??
            context.getClassLoader().loadClass(Hystrix.class.getName());
            return true;
        } catch (Exception ex) {
            return false;
        }
    }
}