com.aipo.aws.AWSContext.java Source code

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Here is the source code for com.aipo.aws.AWSContext.java

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/*
 * This file is part of the com.aipo.aws package.
 * Copyright (C) 2004-2011 Aimluck,Inc.
 * http://www.aipo.com
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

package com.aipo.aws;

import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.Serializable;
import java.util.Properties;

import javax.servlet.FilterConfig;
import javax.servlet.ServletContext;

import com.aipo.aws.aeb.AEBEnvironmentProperties;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.PropertiesCredentials;

/**
 * 
 */
public class AWSContext implements Serializable {

    private static final long serialVersionUID = -6805584882087598678L;

    public static final String DEFAULT_AWSCREDENTIALS_PROPERTIES = new StringBuilder(
            System.getProperty("catalina.home")).append(File.separator).append("aws").append(File.separator)
                    .append("aws.properties").toString();

    private static AWSContext instance = null;

    public static AWSContext get() {
        return instance;
    }

    private AWSCredentials awsCredentials;

    private String sdbEndpoint;

    private String s3Endpoint;

    private String rdsEndpoint;

    private String sqsEndpoint;

    private String snsEndpoint;

    private String sesEndpoint;

    private String cloudWatchEndpoint;

    private String prefix;

    protected static void createAWSContext(ServletContext servletContext) {
        instance = new AWSContext(servletContext);
    }

    protected AWSContext(String resourcePath) {
        setUp(resourcePath, null);
    }

    protected AWSContext(ServletContext servletContext) {
        setUp(DEFAULT_AWSCREDENTIALS_PROPERTIES, servletContext);
    }

    protected AWSContext(String resourcePath, ServletContext servletContext) {
        setUp(resourcePath, servletContext);
    }

    protected AWSContext(FilterConfig filterConfig) {
        String awsCredentialsPath = filterConfig.getInitParameter("awsCredentials");
        if (awsCredentialsPath == null || awsCredentialsPath == "") {
            awsCredentialsPath = DEFAULT_AWSCREDENTIALS_PROPERTIES;
        }
        setUp(awsCredentialsPath, filterConfig.getServletContext());
    }

    private void setUp(String resourcePath, ServletContext context) {
        Properties properties = new Properties();
        try {
            InputStream resourceAsStream = new FileInputStream(resourcePath);

            final String key = AEBEnvironmentProperties.AWS_ACCESS_KEY_ID;
            final String secret = AEBEnvironmentProperties.AWS_SECRET_KEY;
            if (key != null && key.length() > 0 && secret != null && secret.length() > 0) {
                awsCredentials = new AWSCredentials() {

                    @Override
                    public String getAWSAccessKeyId() {
                        return key;
                    }

                    @Override
                    public String getAWSSecretKey() {
                        return secret;
                    }
                };
            } else {
                awsCredentials = new PropertiesCredentials(resourceAsStream);
            }

            resourceAsStream = new FileInputStream(resourcePath);
            try {
                properties.load(resourceAsStream);
            } finally {
                try {
                    resourceAsStream.close();
                } catch (Exception e) {
                }
            }
        } catch (Exception e) {
            System.out.println("'" + resourcePath + "' doesn't load.");
        }

        sdbEndpoint = properties.getProperty("sdbEndpoint");
        s3Endpoint = properties.getProperty("s3Endpoint");
        rdsEndpoint = properties.getProperty("rdsEndpoint");
        sqsEndpoint = properties.getProperty("sqsEndpoint");
        snsEndpoint = properties.getProperty("snsEndpoint");
        sesEndpoint = properties.getProperty("sesEndpoint");
        cloudWatchEndpoint = properties.getProperty("cloudWatchEndpoint");
        prefix = properties.getProperty("prefix");
    }

    /**
     * @return awsCredentials
     */
    public AWSCredentials getAwsCredentials() {
        return awsCredentials;
    }

    /**
     * @return sdbEndpoint
     */
    public String getSdbEndpoint() {
        return sdbEndpoint;
    }

    /**
     * @return s3Endpoint
     */
    public String getS3Endpoint() {
        return s3Endpoint;
    }

    /**
     * @return rdsEndpoint
     */
    public String getRdsEndpoint() {
        return rdsEndpoint;
    }

    /**
     * @return sqsEndpoint
     */
    public String getSqsEndpoint() {
        return sqsEndpoint;
    }

    /**
     * @return snsEndpoint
     */
    public String getSnsEndpoint() {
        return snsEndpoint;
    }

    /**
     * @return sesEndpoint
     */
    public String getSesEndpoint() {
        return sesEndpoint;
    }

    /**
     * 
     * @return
     */
    public String getCloudWatchEndpoint() {
        return cloudWatchEndpoint;
    }

    public String getPrefix() {
        return prefix;
    }

    public String appendConfigPrefix(String value) {
        StringBuilder b = new StringBuilder();
        String param1 = AEBEnvironmentProperties.PARAM1;
        if (param1 == null || param1.length() == 0) {
            String prefix = getPrefix();
            if (prefix == null || prefix.length() == 0) {
                b.append("local.");
            } else {
                b.append(prefix).append(".");
            }
        } else {
            b.append(param1).append(".");
        }
        b.append(value);
        return b.toString();
    }

    public String appendNamespace(String value) {
        StringBuilder b = new StringBuilder();
        String param1 = AEBEnvironmentProperties.PARAM1;
        if (param1 == null || param1.length() == 0) {
            String prefix = getPrefix();
            if (prefix == null || prefix.length() == 0) {
                b.append("local_");
                String username = System.getProperty("user.name");
                if (username == null || username.length() == 0) {
                    username = "anon";
                }
                b.append(username).append("_");
            } else {
                b.append(prefix).append("_");
            }
        } else {
            b.append(param1).append("_");
        }
        b.append(value);
        return b.toString();
    }

    public String appendBacketNamespace(String value) {
        StringBuilder b = new StringBuilder();
        String param1 = AEBEnvironmentProperties.PARAM1;
        if (param1 == null || param1.length() == 0) {
            String prefix = getPrefix();
            if (prefix == null || prefix.length() == 0) {
                b.append("local.");
                String username = System.getProperty("user.name");
                if (username == null || username.length() == 0) {
                    username = "anon";
                }
                b.append(username).append(".");
            } else {
                b.append(prefix).append(".");
            }
        } else {
            b.append(param1).append(".");
        }
        b.append(value);
        return b.toString();
    }

    /**
     * @return
     */
}