org.vruum.unstack.norm.CustomBasicRowProcessor.java Source code

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Here is the source code for org.vruum.unstack.norm.CustomBasicRowProcessor.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 org.vruum.unstack.norm;

import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import org.apache.commons.dbutils.RowProcessor;

public class CustomBasicRowProcessor implements RowProcessor {

    private static final CustomBeanProcessor defaultConvert = new CustomBeanProcessor();
    private static final CustomBasicRowProcessor instance = new CustomBasicRowProcessor();

    @Deprecated
    public static CustomBasicRowProcessor instance() {
        return instance;
    }

    private final CustomBeanProcessor convert;

    public CustomBasicRowProcessor() {
        this(defaultConvert);
    }

    public CustomBasicRowProcessor(CustomBeanProcessor convert) {
        super();
        this.convert = convert;
    }

    @Override
    public Object[] toArray(ResultSet rs) throws SQLException {
        ResultSetMetaData meta = rs.getMetaData();
        int cols = meta.getColumnCount();
        Object[] result = new Object[cols];

        for (int i = 0; i < cols; i++) {
            result[i] = rs.getObject(i + 1);
        }

        return result;
    }

    @Override
    public <T> T toBean(ResultSet rs, Class<T> type) throws SQLException {
        return this.convert.toBean(rs, type);
    }

    //    @Override
    //    public <T> List<T> toBeanList(ResultSet rs, Class<T> type) throws SQLException {
    //        return this.convert.toBeanList(rs, type);
    //    }
    public <T> Map<String, List<T>> toMapOfBeanLists(ResultSet rs, String rowKey, Class<T> type)
            throws SQLException {
        return this.convert.toBeanList(rs, rowKey, type);
    }

    @Override
    public Map<String, Object> toMap(ResultSet rs) throws SQLException {
        Map<String, Object> result = new CaseInsensitiveHashMap();
        ResultSetMetaData rsmd = rs.getMetaData();
        int cols = rsmd.getColumnCount();

        for (int i = 1; i <= cols; i++) {
            String columnName = rsmd.getColumnLabel(i);
            if (null == columnName || 0 == columnName.length()) {
                columnName = rsmd.getColumnName(i);
            }
            result.put(columnName, rs.getObject(i));
        }

        return result;
    }

    @Override
    public <T> List<T> toBeanList(ResultSet rs, Class<T> type) throws SQLException {
        throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
    }

    private static class CaseInsensitiveHashMap extends HashMap<String, Object> {

        private final Map<String, String> lowerCaseMap = new HashMap<String, String>();
        private static final long serialVersionUID = -2848100435296897392L;

        @Override
        public boolean containsKey(Object key) {
            Object realKey = lowerCaseMap.get(key.toString().toLowerCase(Locale.ENGLISH));
            return super.containsKey(realKey);
        }

        @Override
        public Object get(Object key) {
            Object realKey = lowerCaseMap.get(key.toString().toLowerCase(Locale.ENGLISH));
            return super.get(realKey);
        }

        @Override
        public Object put(String key, Object value) {
            Object oldKey = lowerCaseMap.put(key.toLowerCase(Locale.ENGLISH), key);
            Object oldValue = super.remove(oldKey);
            super.put(key, value);
            return oldValue;
        }

        @Override
        public void putAll(Map<? extends String, ?> m) {
            for (Map.Entry<? extends String, ?> entry : m.entrySet()) {
                String key = entry.getKey();
                Object value = entry.getValue();
                this.put(key, value);
            }
        }

        @Override
        public Object remove(Object key) {
            Object realKey = lowerCaseMap.remove(key.toString().toLowerCase(Locale.ENGLISH));
            return super.remove(realKey);
        }
    }
}