com.appdynamics.connectors.ConnectorLocator.java Source code

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Here is the source code for com.appdynamics.connectors.ConnectorLocator.java

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/**
 * Copyright 2013 AppDynamics, 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.appdynamics.connectors;

import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.ec2.AmazonEC2;
import com.amazonaws.services.ec2.AmazonEC2Client;
import com.singularity.ee.connectors.api.IControllerServices;
import com.singularity.ee.connectors.entity.api.IComputeCenter;
import com.singularity.ee.connectors.entity.api.IImageStore;
import com.singularity.ee.connectors.entity.api.IProperty;
import java.util.HashMap;
import java.util.Map;

class ConnectorLocator {
    private static final ConnectorLocator INSTANCE = new ConnectorLocator();

    private final Map<String, AmazonEC2> accessKeyVsEc2 = new HashMap<String, AmazonEC2>();

    private final Object connectorLock = new Object();

    /**
     * Private constructor on singleton.
     */
    private ConnectorLocator() {
    }

    public static ConnectorLocator getInstance() {
        return INSTANCE;
    }

    public AmazonEC2 getConnector(IComputeCenter computeCenter, IControllerServices controllerServices) {
        return getConnector(computeCenter.getProperties(), controllerServices);
    }

    public AmazonEC2 getConnector(IImageStore imageStore, IControllerServices controllerServices) {
        return getConnector(imageStore.getProperties(), controllerServices);
    }

    public AmazonEC2 getConnector(IProperty[] properties, IControllerServices controllerServices) {
        String accessKey = Utils.getAccessKey(properties, controllerServices);
        String secretKey = Utils.getSecretKey(properties, controllerServices);

        AWSCredentials awsCredentials = new BasicAWSCredentials(accessKey, secretKey);

        // TODO: FIX CORE-3805
        // for now return a new instance everytime.
        // We have lot of Multi tenancy and compute centers and image repositores
        // containing the same AWS account information issues
        if (true) {
            return new AmazonEC2Client(awsCredentials);
        }

        synchronized (connectorLock) {
            AmazonEC2 ec2 = accessKeyVsEc2.get(accessKey);
            if (ec2 != null)
                return ec2;
            ec2 = new AmazonEC2Client(awsCredentials);
            accessKeyVsEc2.put(accessKey, ec2);

            return ec2;
        }
    }

    public static void main(String[] args) {
        long startTime = System.currentTimeMillis();

        Object obj = new Object();

        System.out.println("time taken " + (System.currentTimeMillis() - startTime));
    }
}