org.snaker.engine.access.hibernate.HibernateAccess.java Source code

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Here is the source code for org.snaker.engine.access.hibernate.HibernateAccess.java

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/*
 *  Copyright 2013-2015 www.snakerflow.com.
 *  *
 *  * 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 org.snaker.engine.access.hibernate;

import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.snaker.engine.DBAccess;
import org.snaker.engine.SnakerException;
import org.snaker.engine.access.AbstractDBAccess;
import org.snaker.engine.entity.*;
import org.snaker.engine.entity.Process;
import org.snaker.engine.helper.ClassHelper;

import java.sql.Blob;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
import java.util.Map;

/**
 * hibernate??
 * cglib+ThreadLocale
 * @see org.snaker.engine.access.hibernate.HibernateTransactionInterceptor
 * @author yuqs
 * @since 1.0
 */
public abstract class HibernateAccess extends AbstractDBAccess implements DBAccess {
    private static final Logger log = LoggerFactory.getLogger(HibernateAccess.class);
    /**
     * hibernatesession
     */
    protected SessionFactory sessionFactory;

    /**
     * setter
     * @param sessionFactory
     */
    public void setSessionFactory(final SessionFactory sessionFactory) {
        this.sessionFactory = sessionFactory;
    }

    public void initialize(Object accessObject) {
        if (accessObject == null)
            return;
        if (accessObject instanceof SessionFactory) {
            this.sessionFactory = (SessionFactory) accessObject;
        }
    }

    /**
     * ?hibernate?Session
     */
    public Session getSession() {
        return HibernateHelper.getSession(sessionFactory);
    }

    /**
     * ?hibernateconnection
     */
    protected Connection getConnection() throws SQLException {
        return null;
    }

    @SuppressWarnings("deprecation")
    public void updateProcess(Process process) {
        try {
            if (process.getBytes() != null) {
                Blob blob = createBlob(process.getBytes());
                process.setContent(blob);
            }
        } catch (Exception e) {
            throw new SnakerException(e.getMessage(), e.getCause());
        }
        getSession().saveOrUpdate(process);
    }

    @SuppressWarnings("deprecation")
    public void saveProcess(Process process) {
        try {
            if (process.getBytes() != null) {
                Blob blob = createBlob(process.getBytes());
                process.setContent(blob);
            }
        } catch (Exception e) {
            e.printStackTrace();
            throw new SnakerException(e.getMessage(), e.getCause());
        }

        getSession().saveOrUpdate(process);
    }

    public void deleteProcess(Process process) {
        getSession().delete(process);
    }

    public void deleteTask(Task task) {
        List<TaskActor> actors = getTaskActorsByTaskId(task.getId());
        for (TaskActor actor : actors) {
            getSession().delete(actor);
        }
        getSession().delete(task);
    }

    public void deleteOrder(Order order) {
        getSession().delete(order);
    }

    public void deleteHistoryOrder(HistoryOrder historyOrder) {
        getSession().delete(historyOrder);
    }

    public void deleteHistoryTask(HistoryTask historyTask) {
        List<HistoryTaskActor> actors = getHistTaskActorsByTaskId(historyTask.getId());
        for (HistoryTaskActor actor : actors) {
            getSession().delete(actor);
        }
        getSession().delete(historyTask);
    }

    public void deleteSurrogate(Surrogate surrogate) {
        getSession().delete(surrogate);
    }

    public void deleteCCOrder(CCOrder ccorder) {
        getSession().delete(ccorder);
    }

    public void removeTaskActor(String taskId, String... actors) {
        for (String actorId : actors) {
            TaskActor ta = new TaskActor();
            ta.setTaskId(taskId);
            ta.setActorId(actorId);
            getSession().delete(ta);
        }
    }

    public boolean isORM() {
        return true;
    }

    public void saveOrUpdate(Map<String, Object> map) {
        getSession().saveOrUpdate(map.get(KEY_ENTITY));
    }

    public Integer getLatestProcessVersion(String name) {
        SQLQuery query = getSession().createSQLQuery(QUERY_VERSION + " where name = ?");
        query.setParameter(0, name);
        Object result = query.uniqueResult();
        return new Long(ClassHelper.castLong(result)).intValue();
    }

    @SuppressWarnings("unchecked")
    public <T> T queryObject(Class<T> T, String sql, Object... args) {
        SQLQuery query = getSession().createSQLQuery(sql);
        query.addEntity(T);
        for (int i = 0; i < args.length; i++) {
            query.setParameter(i, args[i]);
        }
        return (T) query.uniqueResult();
    }

    @SuppressWarnings("unchecked")
    public <T> List<T> queryList(Class<T> clazz, String sql, Object... args) {
        SQLQuery query = getSession().createSQLQuery(sql);
        query.addEntity(clazz);
        for (int i = 0; i < args.length; i++) {
            query.setParameter(i, args[i]);
        }
        return (List<T>) query.list();
    }

    public Object queryCount(String sql, Object... args) {
        SQLQuery countQuery = getSession().createSQLQuery(sql);
        if (args.length > 0) {
            for (int i = 0; i < args.length; i++) {
                countQuery.setParameter(i, args[i]);
            }
        }
        return countQuery.uniqueResult();
    }

    public abstract Blob createBlob(byte[] bytes);
}