Java IGroupExecutor類代碼示例

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
@Override
public void doInit() throws TddlException {
    this.cursorFactory = new CursorFactoryDemoImp();
    this.commandExecutorFactory = new CommandExecutorFactoryDemoImp();

    executors = CacheBuilder.newBuilder().build(new CacheLoader<Group, IGroupExecutor>() {

        @Override
        public IGroupExecutor load(Group group) throws Exception {

            DemoGroupExecutor executor = new DemoGroupExecutor(getRepo());
            executor.setGroup(group);

            return executor;
        }
    });
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
public IGroupExecutor get(String key) {
    IGroupExecutor groupExecutor = executorMap.get(key);
    if (groupExecutor == null) {
        Group group = matrix.getGroup(key);
        if (group != null) {
            synchronized (executorMap) {
                // double-check，避免並發創建
                groupExecutor = executorMap.get(key);
                if (groupExecutor == null) {
                    return createOne(group);
                } else {
                    return executorMap.get(key);
                }
            }
        }
    }

    return groupExecutor;
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
/**
 * 指定Group配置，創建一個GroupExecutor
 * 
 * @param group
 * @return
 */
public IGroupExecutor createOne(Group group) {
    group.setAppName(this.appName);
    group.setUnitName(this.unitName);
    IRepository repo = repositoryHolder.getOrCreateRepository(group, matrix.getProperties(), cp);

    IGroupExecutor groupExecutor = repo.getGroupExecutor(group);
    putOne(group.getName(), groupExecutor);
    return groupExecutor;
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
public IGroupExecutor putOne(String groupKey, IGroupExecutor groupExecutor, boolean singleton) {
    if (singleton && executorMap.containsKey(groupKey)) {
        throw new IllegalArgumentException("group key is already exists . group key : " + groupKey + " . map "
                                           + executorMap);
    }
    return executorMap.put(groupKey, groupExecutor);
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
public IGroupExecutor get(String key) {
    IGroupExecutor groupExecutor = executorMap.get(key);
    if (groupExecutor == null) {

        for (TopologyHandler sub : this.subTopologyHandlers) {
            groupExecutor = sub.get(key);

            if (groupExecutor != null) {
                return groupExecutor;
            }
        }
        Group group = matrix.getGroup(key);
        if (group != null) {
            synchronized (executorMap) {
                // double-check，避免並發創建
                groupExecutor = executorMap.get(key);
                if (groupExecutor == null) {
                    return createOne(group);
                } else {
                    return executorMap.get(key);
                }
            }
        }
    }

    return groupExecutor;
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
public DataSource getDatasourceByGroupNode(TopologyHandler topology, String groupNode) {
    if ("undecided".equals(groupNode)) {
        return null;
    }
    IGroupExecutor matrixExecutor = topology.get(groupNode);

    if (matrixExecutor == null) return null;
    /*
     * 這裏做個hack吧。 原因是在構造topologic的時候，默認全部使用mysql作為type了。
     * 這樣就造成所有的Datasource都是由RemotingExecutor
     * com.taobao.ustore.jdbc.mysql.My_Reponsitory.buildRemoting(Group
     * group) 創建的，type都是mysql.
     * 但實際上這裏的type需要根據實際的DataSource來決定是個oracle還是個mysql.
     * 如果是oracle那麽type需要改成oracle..
     */
    Group.GroupType type = matrixExecutor.getGroupInfo().getType();
    DataSource ds = (DataSource) matrixExecutor.getRemotingExecutableObject();

    if (isNotValidateNode(type)) {
        throw new IllegalArgumentException("target node is not a validated Jdbc node");
    }

    if (ds == null) {
        throw new IllegalArgumentException("can't find ds by group name ");
    }
    return ds;
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
@Override
protected void doDestroy() throws TddlException {
    tables.cleanUp();

    for (IGroupExecutor executor : executors.asMap().values()) {
        executor.destroy();
    }
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
@Override
public IGroupExecutor getGroupExecutor(final Group group) {
    try {
        return executors.get(group);
    } catch (ExecutionException e) {
        throw new TddlNestableRuntimeException(e);
    }

}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
public DatabaseMetaData getDatabaseMetaData() throws SQLException {
    Connection conn = null;
    DatabaseMetaData dbMa = null;
    try {
        // 找到默認的主庫
        String defaultDbIndex = this.dataSource.getConfigHolder()
            .getOptimizerContext()
            .getRule()
            .getDefaultDbIndex(null);

        // 找到對應的執行器
        IGroupExecutor groupExecutor = this.dataSource.getConfigHolder()
            .getExecutorContext()
            .getTopologyHandler()
            .get(defaultDbIndex);

        Object groupDataSource = groupExecutor.getRemotingExecutableObject();
        if (groupDataSource instanceof DataSource) {
            // 指定到主庫上執行
            conn = ((DataSource) groupDataSource).getConnection();
            dbMa = conn.getMetaData();
        }
    } finally {
        if (conn != null) {
            conn.close();
        }
    }
    return dbMa;
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
@Override
public IGroupExecutor getGroupExecutor(Group group) {
    try {
        return executors.get(group);
    } catch (ExecutionException e) {
        throw new TddlNestableRuntimeException(e);
    }
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
@Override
public void doInit() {

    tables = CacheBuilder.newBuilder().build(new CacheLoader<String, LoadingCache<TableMeta, ITable>>() {

        @Override
        public LoadingCache<TableMeta, ITable> load(final String groupNode) throws Exception {
            return CacheBuilder.newBuilder().build(new CacheLoader<TableMeta, ITable>() {

                @Override
                public ITable load(TableMeta meta) throws Exception {
                    try {
                        HbTable table = new HbTable(meta, groupNameAndExecutors.get(groupNode)
                            .getRemotingExecutableObject(), physicalSchema.get(meta.getTableName()));
                        return table;
                    } catch (Exception ex) {
                        throw new TddlNestableRuntimeException(ex);
                    }
                }

            });
        }
    });

    executors = CacheBuilder.newBuilder().build(new CacheLoader<Group, IGroupExecutor>() {

        @Override
        public IGroupExecutor load(Group group) throws Exception {

            HBaseGroupExecutor executor = new HBaseGroupExecutor(getRepo());
            group.getProperties().put(HbaseConf.cluster_name, group.getName());
            executor.setGroup(group);
            executor.setHbOperate(getHBCluster(group.getProperties()));

            groupNameAndExecutors.put(group.getName(), executor);

            return executor;
        }
    });
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
/**
 * 指定Group配置，創建一個GroupExecutor
 * 
 * @param group
 * @return
 */
public IGroupExecutor createOne(Group group) {
    group.setAppName(this.appName);
    IRepository repo = ExecutorContext.getContext()
        .getRepositoryHolder()
        .getOrCreateRepository(group.getType().toString(), matrix.getProperties());

    IGroupExecutor groupExecutor = repo.getGroupExecutor(group);
    putOne(group.getName(), groupExecutor);
    return groupExecutor;
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
@Override
protected void doDestory() throws TddlException {
    tables.cleanUp();

    for (IGroupExecutor executor : executors.asMap().values()) {
        executor.destory();
    }
}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
@Override
public IGroupExecutor getGroupExecutor(final Group group) {
    try {
        return executors.get(group);
    } catch (ExecutionException e) {
        throw new TddlRuntimeException(e);
    }

}
 

import com.taobao.tddl.executor.spi.IGroupExecutor; //導入依賴的package包/類
@Override
public IGroupExecutor getGroupExecutor(Group group) {
    // TODO Auto-generated method stub
    return null;
}