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•  contract DIAScifiOracle *
•    - function setValue(string memory key, ...
•    - function getValue(string memory key)
•    - function updateOracleUpdaterAddress(a ...

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/**
 *Submitted for verification at Etherscan.io on 2020-12-19
*/

pragma solidity 0.7.4;

contract DIAScifiOracle {
    mapping (string => uint256) public values;
    address oracleUpdater;
    
    event OracleUpdate(string key, uint128 value, uint128 timestamp);
    event UpdaterAddressChange(address newUpdater);
    
    constructor() {
        oracleUpdater = msg.sender;
    }
    
    function setValue(string memory key, uint128 value, uint128 timestamp) public {
        require(msg.sender == oracleUpdater);
        uint256 cValue = (((uint256)(value)) << 128) + timestamp;
        values[key] = cValue;
        emit OracleUpdate(key, value, timestamp);
    }
    
    function getValue(string memory key) public view returns (uint128, uint128) {
        uint256 cValue = values[key];
        uint128 timestamp = (uint128)(cValue % 2**128);
        uint128 value = (uint128)(cValue >> 128);
        return (value, timestamp);
    }
    
    function updateOracleUpdaterAddress(address newOracleUpdaterAddress) public {
        require(msg.sender == oracleUpdater);
        oracleUpdater = newOracleUpdaterAddress;
        emit UpdaterAddressChange(newOracleUpdaterAddress);
    }
}

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[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"key","type":"string"},{"indexed":false,"internalType":"uint128","name":"value","type":"uint128"},{"indexed":false,"internalType":"uint128","name":"timestamp","type":"uint128"}],"name":"OracleUpdate","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newUpdater","type":"address"}],"name":"UpdaterAddressChange","type":"event"},{"inputs":[{"internalType":"string","name":"key","type":"string"}],"name":"getValue","outputs":[{"internalType":"uint128","name":"","type":"uint128"},{"internalType":"uint128","name":"","type":"uint128"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"key","type":"string"},{"internalType":"uint128","name":"value","type":"uint128"},{"internalType":"uint128","name":"timestamp","type":"uint128"}],"name":"setValue","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOracleUpdaterAddress","type":"address"}],"name":"updateOracleUpdaterAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"","type":"string"}],"name":"values","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

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