com.claresco.tinman.servlet.XapiServletUtility.java Source code

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Here is the source code for com.claresco.tinman.servlet.XapiServletUtility.java

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/**
 * Copyright (c) 1999, 2014 Claresco Corporation, Berkeley, California. All rights reserved.
 *
 *
 * XapiServletUtility.java   May 13, 2014
 *
 * Copyright 2014 Claresco Corporation, Berkeley, CA 94704. All Rights Reserved.
 *
 * This software is the proprietary information of Claresco Corporation.
 * Use is subject to license terms.
 *
 * Author : Rheza
 *
 */
package com.claresco.tinman.servlet;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.Set;
import java.util.UUID;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.codec.binary.Base64;

import com.claresco.tinman.sql.XapiSQLControl;
import com.google.gson.JsonArray;
import com.google.gson.JsonPrimitive;
import com.sun.corba.se.spi.orbutil.fsm.Guard.Result;

/**
 * XapiServletUtility
 * @author Rheza
 *
 * Description: 
 *
 *
 * Status: 
 *
 *
 */
public abstract class XapiServletUtility {

    /**
     * 
     * Definition:
     *   Splitting the URL array based on forward slash
     *
     * Params:
     *
     *
     */
    protected static String[] getRequestURLArray(HttpServletRequest req) {
        String theURL = req.getRequestURI();
        String[] urlArray;

        if (theURL.endsWith("/")) {
            urlArray = theURL.substring(0, theURL.length() - 2).split("/");
        } else {
            urlArray = theURL.split("/");
        }

        String[] returnURL = new String[urlArray.length - 1];

        for (int i = 1; i < urlArray.length; i++) {
            returnURL[i - 1] = urlArray[i];
        }

        return returnURL;
    }

    protected static boolean checkAPI(String theAPI, String theSupposedAPI) {
        return theAPI.equalsIgnoreCase(theSupposedAPI);
    }

    protected static boolean checkAction(String theAction, String theSupposedAction) {
        return theAction != null && theAction.equalsIgnoreCase(theSupposedAction);
    }

    protected static String getStringFromReader(BufferedReader theReader)
            throws XapiServletOperationProblemException {
        int c;
        StringBuffer theStringBuffer = new StringBuffer();
        try {
            while ((c = theReader.read()) != -1) {
                theStringBuffer.append((char) c);
            }
            String s = theStringBuffer.toString();
            return theStringBuffer.toString();
        } catch (IOException e) {
            throw new XapiServletOperationProblemException("Having problem reading the document");
        }

    }

    protected static BufferedReader getReader(HttpServletRequest req) throws XapiServletOperationProblemException {
        try {
            return req.getReader();
        } catch (IOException e) {
            throw new XapiServletOperationProblemException("Having problem reading the request");
        }
    }

    protected static PrintWriter getWriter(HttpServletResponse resp) throws XapiServletOperationProblemException {
        try {
            return resp.getWriter();
        } catch (IOException e) {
            throw new XapiServletOperationProblemException("Having problem writing a response");
        }
    }

    protected static void closeConnection(Connection conn) {
        try {
            if (conn != null) {
                conn.close();
            }
        } catch (Exception e) {

        }
    }

    protected static void closeSQLControl(XapiSQLControl theSQLControl) {
        try {
            if (theSQLControl != null) {
                theSQLControl.close();
            }
        } catch (Exception e) {

        }
    }

    protected static String createJsonArray(ArrayList<String> theData) {
        JsonArray theArray = new JsonArray();

        for (String s : theData) {
            theArray.add(new JsonPrimitive(s));
        }

        return theArray.toString();
    }

    protected static String createJsonArray(Set<String> theData) {
        JsonArray theArray = new JsonArray();

        for (String s : theData) {
            theArray.add(new JsonPrimitive(s));
        }

        return theArray.toString();
    }

    protected static String decodeBase64(String theSecret) throws UnsupportedEncodingException {
        Base64 decoder = new Base64();

        byte[] decodedBytes = decoder.decodeBase64(theSecret);
        return new String(decodedBytes, "UTF-8");
    }

    protected static String encodeBase64(String theSecret) {
        Base64 encoder = new Base64();

        return encoder.encodeAsString(theSecret.getBytes());
    }

    protected static String getOriginURL(HttpServletRequest req) {
        return req.getHeader("Origin");
    }

    protected static String createHeaderString(ArrayList<String> theList) {
        String theResult = "";

        for (String s : theList) {
            theResult += s + ", ";
        }

        theResult = theResult.trim();
        theResult = theResult.substring(0, theResult.length() - 1);

        return theResult;
    }

    protected static void rollBack(Connection conn) {
        try {
            conn.rollback();
        } catch (SQLException e) {
        }
    }

    protected static UUID validateUUID(String theUUIDString) throws XapiBadParamException {
        try {
            if (theUUIDString != null && !theUUIDString.isEmpty()) {
                return UUID.fromString(theUUIDString);
            } else {
                throw new XapiBadParamException("Bad UUID");
            }
        } catch (IllegalArgumentException e) {
            throw new XapiBadParamException("Bad UUID");
        }
    }

    public static void main(String[] args) {
        ArrayList<String> theData = new ArrayList<String>();
        theData.add("aldfjaklfja");
        theData.add("duo");

        System.out.println(createJsonArray(theData));

        try {
            System.out.println(decodeBase64("dGVzdDpwYXNzd29yZA=="));
        } catch (Exception e) {

        }

        String st = "Basic dGVzdDpwYXNzd29yZA==";
        System.out.println(st.substring(5));

        System.out.println(encodeBase64("cremebrulee#$%:Comeatmebro***"));

        System.out.println(createHeaderString(theData));
    }

}