net.ymate.platform.persistence.jdbc.base.AbstractOperator.java Source code

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Here is the source code for net.ymate.platform.persistence.jdbc.base.AbstractOperator.java

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/*
 * Copyright 2007-2016 the original author or authors.
 *
 * 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 net.ymate.platform.persistence.jdbc.base;

import net.ymate.platform.core.util.ExpressionUtils;
import net.ymate.platform.persistence.base.Type;
import net.ymate.platform.persistence.jdbc.IConnectionHolder;
import org.apache.commons.lang.StringUtils;
import org.apache.commons.lang.time.StopWatch;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

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

/**
 * ???
 *
 * @author  (suninformation@163.com) on 2011-9-22 ?10:19:53
 * @version 1.0
 */
public abstract class AbstractOperator implements IOperator {

    private static final Log _LOG = LogFactory.getLog(AbstractOperator.class);

    private String sql;

    private IConnectionHolder connectionHolder;

    private IAccessorConfig accessorConfig;

    private List<SQLParameter> parameters;

    private long expenseTime;

    /**
     * ?
     */
    private boolean executed;

    public AbstractOperator(String sql, IConnectionHolder connectionHolder) {
        this(sql, connectionHolder, null);
    }

    public AbstractOperator(String sql, IConnectionHolder connectionHolder, IAccessorConfig accessorConfig) {
        this.sql = sql;
        this.connectionHolder = connectionHolder;
        this.accessorConfig = accessorConfig;
        this.parameters = new ArrayList<SQLParameter>();
    }

    public void execute() throws Exception {
        if (!this.executed) {
            StopWatch _time = new StopWatch();
            _time.start();
            int _effectCounts = 0;
            try {
                _effectCounts = __doExecute();
                // ?????
                this.executed = true;
            } finally {
                _time.stop();
                this.expenseTime = _time.getTime();
                //
                if (this.connectionHolder.getDataSourceCfgMeta().isShowSQL()) {
                    _LOG.info(ExpressionUtils.bind("[${sql}]${param}[${count}][${time}]")
                            .set("sql", StringUtils.defaultIfBlank(this.sql, "@NULL"))
                            .set("param", __doSerializeParameters()).set("count", _effectCounts + "")
                            .set("time", this.expenseTime + "ms").getResult());
                }
            }
        }
    }

    protected String __doSerializeParameters() {
        return this.parameters.toString();
    }

    /**
     * @return ??
     * @throws Exception 
     */
    protected abstract int __doExecute() throws Exception;

    protected void __doSetParameters(PreparedStatement statement) throws SQLException {
        for (int i = 0; i < this.getParameters().size(); i++) {
            SQLParameter _param = this.getParameters().get(i);
            if (_param.getValue() == null) {
                statement.setNull(i + 1, 0);
            } else {
                statement.setObject(i + 1, _param.getValue());
            }
        }
    }

    public boolean isExecuted() {
        return executed;
    }

    public String getSQL() {
        return sql;
    }

    public IAccessorConfig getAccessorConfig() {
        return accessorConfig;
    }

    public void setAccessorConfig(IAccessorConfig accessorConfig) {
        this.accessorConfig = accessorConfig;
    }

    public IConnectionHolder getConnectionHolder() {
        return connectionHolder;
    }

    public long getExpenseTime() {
        return expenseTime;
    }

    public List<SQLParameter> getParameters() {
        return this.parameters;
    }

    public IOperator addParameter(SQLParameter parameter) {
        if (parameter != null) {
            this.parameters.add(parameter);
        }
        return this;
    }

    public IOperator addParameter(Object parameter) {
        if (parameter == null) {
            this.parameters.add(new SQLParameter(Type.FIELD.UNKNOW, null));
        } else {
            this.parameters.add(new SQLParameter(parameter));
        }
        return this;
    }
}