Example usage for com.amazonaws.services.elasticache.model DescribeCacheClustersRequest DescribeCacheClustersRequest

Introduction

In this page you can find the example usage for com.amazonaws.services.elasticache.model DescribeCacheClustersRequest DescribeCacheClustersRequest.

Prototype

DescribeCacheClustersRequest

Source Link

Usage

From source file:it.polimi.modaclouds.cpimlibrary.memcache.AmazonMemcache.java

License:Apache License

private void start(String memcacheAddr) {
    AWSCredentials credentials = null;// w  w w.  ja  v  a  2  s. c o m
    try {
        credentials = new PropertiesCredentials(
                getClass().getClassLoader().getResourceAsStream("AwsCredentials.properties"));
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    ec = new AmazonElastiCacheClient(credentials);
    DescribeCacheClustersRequest describe_req = new DescribeCacheClustersRequest();
    describe_req.setShowCacheNodeInfo(true);
    DescribeCacheClustersResult describe_res = ec.describeCacheClusters(describe_req);
    List<CacheCluster> clusters = describe_res.getCacheClusters();
    for (CacheCluster c : clusters) {
        Endpoint conf_end = c.getConfigurationEndpoint();
        String addr = conf_end.getAddress() + ":" + conf_end.getPort();
        if (addr.equals(memcacheAddr)) {
            cluster = c;
            break;
        }
    }
    //setting security groups
    // List<String> sec_groups_names = new ArrayList<String>();
    // List<CacheSecurityGroup> res = ec.describeCacheSecurityGroups().getCacheSecurityGroups();
    // for(int i = 0; i < res.size(); i++) {
    //    if(res.get(i).getDescription().contains("Cloud Platform Independent Model"))
    //       sec_groups_names.add(res.get(i).getCacheSecurityGroupName());
    // }
    // ModifyCacheClusterRequest req = new ModifyCacheClusterRequest(cluster.getCacheClusterId());
    // req.setCacheSecurityGroupNames(sec_groups_names);
    // req.setApplyImmediately(true);
    // ec.modifyCacheCluster(req);
    //creation of memcached client
    List<InetSocketAddress> addrs = new ArrayList<InetSocketAddress>();
    if (cluster != null && cluster.getCacheNodes() != null) {
        for (CacheNode node : cluster.getCacheNodes()) {
            if (node != null) {
                Endpoint endpoint = node.getEndpoint();
                if (endpoint != null && endpoint.getAddress() != null) {
                    addrs.add(new InetSocketAddress(endpoint.getAddress(), endpoint.getPort()));
                }
            }
        }
    }
    if (addrs.size() > 0) {
        try {
            System.out.println("Creation of memCacheClient.");
            memCache = new MemcachedClient(addrs);
            System.out.println("memCacheClient created.");
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    } else
        System.out.println("No available nodes.");
}

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From source file:org.springframework.cloud.aws.cache.ElastiCacheFactoryBean.java

License:Apache License

@Override
protected Cache createInstance() throws Exception {
    DescribeCacheClustersRequest describeCacheClustersRequest = new DescribeCacheClustersRequest()
            .withCacheClusterId(getCacheClusterName());
    describeCacheClustersRequest.setShowCacheNodeInfo(true);

    DescribeCacheClustersResult describeCacheClustersResult = this.amazonElastiCache
            .describeCacheClusters(describeCacheClustersRequest);

    CacheCluster cacheCluster = describeCacheClustersResult.getCacheClusters().get(0);
    if (!"available".equals(cacheCluster.getCacheClusterStatus())) {
        LOGGER.warn(/*from   www.j ava  2s. c o  m*/
                "Cache cluster is not available now. Connection may fail during cache access. Current status is {}",
                cacheCluster.getCacheClusterStatus());
    }

    Endpoint configurationEndpoint = getEndpointForCache(cacheCluster);

    for (CacheFactory cacheFactory : this.cacheFactories) {
        if (cacheFactory.isSupportingCacheArchitecture(cacheCluster.getEngine())) {
            return cacheFactory.createCache(this.cacheClusterId, configurationEndpoint.getAddress(),
                    configurationEndpoint.getPort());
        }
    }

    throw new IllegalArgumentException("No CacheFactory configured for engine: " + cacheCluster.getEngine());
}

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From source file:org.springframework.cloud.aws.cache.ElastiCacheMemcachedFactoryBean.java

License:Apache License

@Override
protected MemcachedClient createInstance() throws Exception {
    DescribeCacheClustersResult describeCacheClustersResult = this.amazonElastiCache.describeCacheClusters(
            new DescribeCacheClustersRequest().withCacheClusterId(getCacheClusterName()));

    CacheCluster cacheCluster = describeCacheClustersResult.getCacheClusters().get(0);
    if (!"available".equals(cacheCluster.getCacheClusterStatus())) {
        LOGGER.warn(/*from ww  w.j  a v a2s.  co  m*/
                "Cache cluster is not available now. Connection may fail during cache access. Current status is {}",
                cacheCluster.getCacheClusterStatus());
    }

    if (!"memcached".equals(cacheCluster.getEngine())) {
        throw new IllegalStateException("Currently only memcached is supported as the cache cluster engine");
    }

    Endpoint configurationEndpoint = cacheCluster.getConfigurationEndpoint();

    // We return every time one configuration endpoint. The amazon memcached client will connect to all nodes.
    return new MemcachedClient(
            new InetSocketAddress(configurationEndpoint.getAddress(), configurationEndpoint.getPort()));
}

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