com.alibaba.datax.plugin.reader.odpsreader.util.IdAndKeyUtil.java Source code

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Here is the source code for com.alibaba.datax.plugin.reader.odpsreader.util.IdAndKeyUtil.java

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/**
 *  (C) 2010-2014 Alibaba Group Holding Limited.
 *
 * 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.alibaba.datax.plugin.reader.odpsreader.util;

import com.alibaba.datax.common.exception.DataXException;
import com.alibaba.datax.common.util.Configuration;
import com.alibaba.datax.plugin.reader.odpsreader.Constant;
import com.alibaba.datax.plugin.reader.odpsreader.Key;
import com.alibaba.datax.plugin.reader.odpsreader.OdpsReaderErrorCode;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.Map;

public class IdAndKeyUtil {
    private static Logger LOG = LoggerFactory.getLogger(IdAndKeyUtil.class);

    public static Configuration parseAccessIdAndKey(Configuration originalConfig) {
        String accessId = originalConfig.getString(Key.ACCESS_ID);
        String accessKey = originalConfig.getString(Key.ACCESS_KEY);

        // ?? accessId,accessKey ????? accessid/accessKey
        if (StringUtils.isNotBlank(accessId) || StringUtils.isNotBlank(accessKey)) {
            LOG.info("Try to get accessId/accessKey from your config.");
            //???
            accessId = originalConfig.getNecessaryValue(Key.ACCESS_ID, OdpsReaderErrorCode.REQUIRED_VALUE);
            accessKey = originalConfig.getNecessaryValue(Key.ACCESS_KEY, OdpsReaderErrorCode.REQUIRED_VALUE);
            //??
            return originalConfig;
        } else {
            Map<String, String> envProp = System.getenv();
            return getAccessIdAndKeyFromEnv(originalConfig, envProp);
        }
    }

    private static Configuration getAccessIdAndKeyFromEnv(Configuration originalConfig,
            Map<String, String> envProp) {
        String accessId = null;
        String accessKey = null;

        String skynetAccessID = envProp.get(Constant.SKYNET_ACCESSID);
        String skynetAccessKey = envProp.get(Constant.SKYNET_ACCESSKEY);

        if (StringUtils.isNotBlank(skynetAccessID) || StringUtils.isNotBlank(skynetAccessKey)) {
            /**
             * ??SKYNET_ACCESSID/SKYNET_ACCESSKEy?????
             * odpsaccessId/accessKey()
             */

            LOG.info("Try to get accessId/accessKey from environment.");
            accessId = skynetAccessID;
            accessKey = DESCipher.decrypt(skynetAccessKey);
            if (StringUtils.isNotBlank(accessKey)) {
                originalConfig.set(Key.ACCESS_ID, accessId);
                originalConfig.set(Key.ACCESS_KEY, accessKey);
                LOG.info("Get accessId/accessKey from environment variables successfully.");
            } else {
                throw DataXException.asDataXException(OdpsReaderErrorCode.GET_ID_KEY_FAIL, String
                        .format("???accessId/accessKey , accessId=[%s]", accessId));
            }
        } else {
            // ????
            throw DataXException.asDataXException(OdpsReaderErrorCode.GET_ID_KEY_FAIL,
                    "?accessId/accessKey. ?????.");
        }

        return originalConfig;
    }
}