Druid/src/main/java/com/alibaba/druid/hbase/HBaseConnection.java

package com.alibaba.druid.hbase;

import java.sql.Array;
import java.sql.Blob;
import java.sql.CallableStatement;
import java.sql.Clob;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.NClob;
import java.sql.PreparedStatement;
import java.sql.SQLClientInfoException;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.sql.SQLWarning;
import java.sql.SQLXML;
import java.sql.Savepoint;
import java.sql.Statement;
import java.sql.Struct;
import java.util.HashMap;
import java.util.Map;
import java.util.Properties;

import org.apache.hadoop.conf.Configuration;

public class HBaseConnection implements Connection {

    private Configuration         config;

    private boolean               autoCommit = true;
    private String                catalog;
    private int                   transactionIsolation;
    private int                   holdability;
    private Map<String, Class<?>> typeMap    = new HashMap<String, Class<?>>();
    private SQLWarning            warings;

    public HBaseConnection(Properties info){
        config = new Configuration();
        this.setClientInfo(info);
    }

    @SuppressWarnings("unchecked")
    @Override
    public <T> T unwrap(Class<T> iface) throws SQLException {
        if (iface == Configuration.class) {
            return (T) config;
        }

        if (iface == Connection.class || iface == HBaseConnection.class) {
            return (T) this;
        }

        return null;
    }

    @Override
    public boolean isWrapperFor(Class<?> iface) throws SQLException {
        if (iface == Configuration.class) {
            return true;
        }

        if (iface == Connection.class || iface == HBaseConnection.class) {
            return true;
        }

        return false;
    }

    @Override
    public Statement createStatement() throws SQLException {
        return new HBaseStatement(this);
    }

    @Override
    public PreparedStatement prepareStatement(String sql) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public CallableStatement prepareCall(String sql) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public String nativeSQL(String sql) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public void setAutoCommit(boolean autoCommit) throws SQLException {
        this.autoCommit = autoCommit;
    }

    @Override
    public boolean getAutoCommit() throws SQLException {
        return autoCommit;
    }

    @Override
    public void commit() throws SQLException {

    }

    @Override
    public void rollback() throws SQLException {

    }

    @Override
    public void close() throws SQLException {

    }

    @Override
    public boolean isClosed() throws SQLException {
        return false;
    }

    @Override
    public DatabaseMetaData getMetaData() throws SQLException {
        return null;
    }

    @Override
    public void setReadOnly(boolean readOnly) throws SQLException {

    }

    @Override
    public boolean isReadOnly() throws SQLException {
        return false;
    }

    @Override
    public void setCatalog(String catalog) throws SQLException {
        this.catalog = catalog;
    }

    @Override
    public String getCatalog() throws SQLException {
        return catalog;
    }

    @Override
    public void setTransactionIsolation(int level) throws SQLException {
        this.transactionIsolation = level;
    }

    @Override
    public int getTransactionIsolation() throws SQLException {
        return transactionIsolation;
    }

    @Override
    public SQLWarning getWarnings() throws SQLException {
        return warings;
    }

    @Override
    public void clearWarnings() throws SQLException {
        this.warings = null;
    }

    public void setWarings(SQLWarning warings) {
        this.warings = warings;
    }

    @Override
    public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency)
                                                                                                      throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public Map<String, Class<?>> getTypeMap() throws SQLException {
        return typeMap;
    }

    @Override
    public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
        this.typeMap = map;
    }

    @Override
    public void setHoldability(int holdability) throws SQLException {
        this.holdability = holdability;
    }

    @Override
    public int getHoldability() {
        return holdability;
    }

    @Override
    public Savepoint setSavepoint() throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public Savepoint setSavepoint(String name) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public void rollback(Savepoint savepoint) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public void releaseSavepoint(Savepoint savepoint) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
                                                                                                           throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency,
                                              int resultSetHoldability) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency,
                                         int resultSetHoldability) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public Clob createClob() throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public Blob createBlob() throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public NClob createNClob() throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public SQLXML createSQLXML() throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public boolean isValid(int timeout) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public void setClientInfo(String name, String value) throws SQLClientInfoException {
        this.config.set(name, value);
    }

    @Override
    public void setClientInfo(Properties properties) {
        for (Map.Entry<Object, Object> entry : properties.entrySet()) {
            if (entry.getKey() != null && entry.getValue() != null) {
                config.set(entry.getKey().toString(), entry.getValue().toString());
            }
        }
    }

    @Override
    public String getClientInfo(String name) throws SQLException {
        return config.get(name);
    }

    @Override
    public Properties getClientInfo() throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

    @Override
    public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
        throw new SQLFeatureNotSupportedException();
    }

}