com.glaf.core.execution.UpdateExecutionHandler.java Source code

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Here is the source code for com.glaf.core.execution.UpdateExecutionHandler.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.glaf.core.execution;

import java.io.File;
import java.sql.Connection;
import java.sql.Statement;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

import com.glaf.core.config.Environment;
import com.glaf.core.config.SystemProperties;
import com.glaf.core.execution.ExecutionHandler;
import com.glaf.core.execution.FileExecutionHelper;
import com.glaf.core.jdbc.DBConnectionFactory;
import com.glaf.core.util.DBUtils;
import com.glaf.core.util.FileUtils;
import com.glaf.core.util.JdbcUtils;

public class UpdateExecutionHandler implements ExecutionHandler {

    protected final static Log logger = LogFactory.getLog(UpdateExecutionHandler.class);

    @Override
    public void execute(String content) {
        FileExecutionHelper helper = new FileExecutionHelper();
        String currentSystemName = Environment.getCurrentSystemName();
        Connection conn = null;
        Statement stmt = null;
        try {
            conn = DBConnectionFactory.getConnection(currentSystemName);
            if (conn != null) {
                helper.createTable(conn);
                String path = SystemProperties.getConfigRootPath() + "/conf/bootstrap/update";
                File dir = new File(path);
                File contents[] = dir.listFiles();
                if (contents != null) {
                    for (int i = 0; i < contents.length; i++) {
                        if (contents[i].isFile() && StringUtils.endsWith(contents[i].getName(), ".sql")) {
                            try {
                                if (!helper.exists(conn, "update_sql", contents[i])) {
                                    long lastModified = helper.lastModified(conn, "update_sql", contents[i]);
                                    if (contents[i].lastModified() > lastModified) {
                                        conn.setAutoCommit(false);
                                        String ddlStatements = FileUtils.readFile(contents[i].getAbsolutePath());
                                        DBUtils.executeSchemaResourceIgnoreException(conn, ddlStatements);
                                        helper.save(conn, "update_sql", contents[i]);
                                        conn.commit();
                                    }
                                }
                            } catch (Exception ex) {
                                ex.printStackTrace();
                                logger.error(ex);
                            }
                        }
                    }
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
            logger.error(ex);
        } finally {
            JdbcUtils.close(stmt);
            JdbcUtils.close(conn);
        }
    }

}