com.stehno.sjdbcx.reflection.DefaultParamMapper.java Source code

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Here is the source code for com.stehno.sjdbcx.reflection.DefaultParamMapper.java

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/*
 * Copyright (c) 2013 Christopher J. Stehno
 *
 * 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 com.stehno.sjdbcx.reflection;

import com.stehno.sjdbcx.ParamMapper;
import com.stehno.sjdbcx.annotation.Ignore;
import com.stehno.sjdbcx.annotation.Param;
import com.stehno.sjdbcx.support.AnnotatedArgument;
import org.springframework.jdbc.core.namedparam.BeanPropertySqlParameterSource;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource;
import org.springframework.jdbc.core.namedparam.SqlParameterSource;

import java.lang.annotation.Annotation;

/**
 * The default param mapper which is used if no other param mapper is specified.
 * It may be sub-classed in order to augment its functionality.
 *
 * enums are converted to strings as .name()
 *
 * The Param annotations are processed by this implementation.
 * Any parameter annotated with Ignore will not be processed.
 */
public class DefaultParamMapper implements ParamMapper {

    @Override
    public SqlParameterSource mapByName(final AnnotatedArgument[] annotatedArguments) {
        final MapSqlParameterSource parameterSource = new MapSqlParameterSource();

        if (annotatedArguments != null) {
            for (final AnnotatedArgument arg : annotatedArguments) {
                if (arg.findAnnotation(Ignore.class) == null) {
                    final Annotation paramAnno = arg.findAnnotation(Param.class);
                    if (paramAnno == null) {
                        addBean(parameterSource, arg.getValue());

                    } else {
                        Object value = arg.getValue();
                        if (value != null && value.getClass().isEnum()) {
                            value = ((Enum) value).name();
                        }

                        parameterSource.addValue(((Param) paramAnno).value(), value);
                    }
                }
            }
        }

        return parameterSource;
    }

    @Override
    public Object[] mapByIndex(final AnnotatedArgument[] annotatedArguments) {
        final Object[] args = new Object[annotatedArguments.length];
        for (int i = 0; i < annotatedArguments.length; i++) {
            args[i] = annotatedArguments[i].getValue();
        }
        return args;
    }

    private void addBean(final MapSqlParameterSource source, final Object beanObj) {
        final BeanPropertySqlParameterSource beanSource = new BeanPropertySqlParameterSource(beanObj);

        for (final String name : beanSource.getReadablePropertyNames()) {
            source.addValue(name, beanSource.getValue(name));
        }
    }
}