com.dangdang.config.service.zookeeper.ZookeeperConfigProfile Maven / Gradle / Ivy

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/**
 * Copyright 1999-2014 dangdang.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.
 */
package com.dangdang.config.service.zookeeper;

import com.dangdang.config.service.ConfigProfile;
import org.apache.curator.RetryPolicy;
import org.apache.curator.retry.ExponentialBackoffRetry;
import org.apache.curator.utils.ZKPaths;

/**
 * 基本配置
 *
 * @author Yuxuan Wang
 *
 */
public class ZookeeperConfigProfile extends ConfigProfile {

    private static final ExponentialBackoffRetry DEFAULT_RETRY_POLICY = new ExponentialBackoffRetry(1000, 3);

    /**
     * zookeeper地址
     */
    private final String connectStr;

    /**
     * 项目配置根目录
     */
    private final String rootNode;

    /**
     * 重试策略
     */
    private final RetryPolicy retryPolicy;

    /**
     * 是否开启本地缓存, 基础为当前用户目录下的.config-toolkit
     */
    private final boolean openLocalCache;

    public ZookeeperConfigProfile(final String connectStr, final String rootNode, final String version) {
        this(connectStr, rootNode, version, false);
    }

    public ZookeeperConfigProfile(final String connectStr, final String rootNode, final String version, final boolean openLocalCache) {
        this(connectStr, rootNode, version, openLocalCache, DEFAULT_RETRY_POLICY);
    }

    public ZookeeperConfigProfile(final String connectStr, final String rootNode, final String version, final boolean openLocalCache,
                                  final RetryPolicy retryPolicy) {
        super(version);

        if(connectStr == null || rootNode == null || retryPolicy == null) {
            throw new IllegalArgumentException();
        }

        this.connectStr = connectStr;
        this.rootNode = rootNode;
        this.retryPolicy = retryPolicy;
        this.openLocalCache = openLocalCache;
    }

    public String getConnectStr() {
        return connectStr;
    }

    public String getRootNode() {
        return rootNode;
    }

    public RetryPolicy getRetryPolicy() {
        return retryPolicy;
    }

    public String getVersionedRootNode() {
        if (version == null) {
            throw new IllegalArgumentException("Version cannot be null");
        }
        return ZKPaths.makePath(rootNode, version);
    }

    public boolean isOpenLocalCache() {
        return openLocalCache;
    }

    @Override
    public String toString() {
        return "ZookeeperConfigProfile{" +
                "connectStr='" + connectStr + '\'' +
                ", rootNode='" + rootNode + '\'' +
                ", retryPolicy=" + retryPolicy +
                ", openLocalCache=" + openLocalCache +
                '}';
    }
}