com.pactera.edg.am.metamanager.extractor.dao.helper.DeleteDependencyHelper.java Source code

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Here is the source code for com.pactera.edg.am.metamanager.extractor.dao.helper.DeleteDependencyHelper.java

Source

/*
 * Copyright 2009 by pactera.edg.am Corporation. Address:HePingLi East Street No.11
 * 5-5, BeiJing,
 * 
 * All rights reserved.
 * 
 * This software is the confidential and proprietary information of pactera.edg.am
 * Corporation ("Confidential Information"). You shall not disclose such
 * Confidential Information and shall use it only in accordance with the terms
 * of the license agreement you entered into with pactera.edg.am.
 */

package com.pactera.edg.am.metamanager.extractor.dao.helper;

import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.util.Iterator;
import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.dao.DataAccessException;

import com.pactera.edg.am.metamanager.extractor.bo.ExtractorLogLevel;
import com.pactera.edg.am.metamanager.extractor.bo.mm.MMDDependency;
import com.pactera.edg.am.metamanager.extractor.util.AdapterExtractorContext;

/**
 * ?DAO,PreparedStatementCallback?,???
 * 
 * @author hqchen
 * @version 1.0 Date: Aug 22, 2009
 */
public class DeleteDependencyHelper extends PreparedStatementCallbackHelper {

    private Log log = LogFactory.getLog(DeleteDependencyHelper.class);

    private List<MMDDependency> dependenciesList;

    public DeleteDependencyHelper(int batchSize) {
        super(batchSize);
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.springframework.jdbc.core.PreparedStatementCallback#doInPreparedStatement(java.sql.PreparedStatement)
     */
    public Object doInPreparedStatement(PreparedStatement ps) throws SQLException, DataAccessException {
        String logMsg = "";
        // ???
        Iterator<MMDDependency> dependencies = dependenciesList.iterator();

        long sysTime = AdapterExtractorContext.getInstance().getGlobalTime();
        while (dependencies.hasNext()) {
            MMDDependency dependency = dependencies.next();
            doInPreparedStatement(sysTime, dependency, ps);
        }
        if (super.count % super.batchSize != 0) {
            ps.executeBatch();
            ps.clearBatch();

        }
        logMsg = "?:" + dependenciesList.size();
        log.info(logMsg);
        AdapterExtractorContext.addExtractorLog(ExtractorLogLevel.INFO, logMsg);
        return null;

    }

    private void doInPreparedStatement(long sysTime, MMDDependency dependency, PreparedStatement ps)
            throws SQLException {
        // ?ID
        ps.setString(1, dependency.getOwnerMetadata().getId());
        // ?ID
        ps.setString(2, dependency.getValueMetadata().getId());

        ps.addBatch();
        ps.clearParameters();

        if (++super.count % super.batchSize == 0) {
            ps.executeBatch();
            ps.clearBatch();
        }
    }

    public void setDependenciesList(List<MMDDependency> dependenciesList) {

        this.dependenciesList = dependenciesList;
    }

}