Voomra/jdbc-template
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This commit is contained in:
DmitriyMX
2022-07-29 22:21:22 +03:00
commit c095591469
18 changed files with 741 additions and 0 deletions
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12
.editorconfig Normal file
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root = true
[*]
charset = utf-8
end_of_line = lf
indent_size = 4
indent_style = space
insert_final_newline = true
[gradlew.bat]
charset = latin1
end_of_line = crlf

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gradlew.bat text eol=crlf

11
.gitignore vendored Normal file
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# IDEA
.idea/
out/
*.iml
*.ipr
*.iws
*.ids
# GRADLE
.gradle/
build/

30
build.gradle Normal file
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//file:noinspection GroovyAssignabilityCheck
plugins {
id 'java'
id 'maven-publish'
}
group 'ru.di9'
version '1.9'
repositories {
mavenCentral()
}
dependencies {
compileOnly('org.jetbrains:annotations:23.0.0')
annotationProcessor('org.projectlombok:lombok:1.18.24')
compileOnly('org.projectlombok:lombok:1.18.24')
}
publishing {
publications {
mavenBinary(MavenPublication) {
groupId = project.group
artifactId = project.name
version = project.version
from components.java
}
}
}

BIN
gradle/wrapper/gradle-wrapper.jar vendored Normal file
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gradle/wrapper/gradle-wrapper.properties vendored Normal file
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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

185
gradlew vendored Executable file
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#!/usr/bin/env sh
#
# Copyright 2015 the original author or authors.
#
# 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
#
# https://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.
#
##############################################################################
##
## Gradle start up script for UN*X
##
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
PRG="$0"
# Need this for relative symlinks.
while [ -h "$PRG" ] ; do
ls=`ls -ld "$PRG"`
link=`expr "$ls" : '.*-> \(.*\)$'`
if expr "$link" : '/.*' > /dev/null; then
PRG="$link"
else
PRG=`dirname "$PRG"`"/$link"
fi
done
SAVED="`pwd`"
cd "`dirname \"$PRG\"`/" >/dev/null
APP_HOME="`pwd -P`"
cd "$SAVED" >/dev/null
APP_NAME="Gradle"
APP_BASE_NAME=`basename "$0"`
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD="maximum"
warn () {
echo "$*"
}
die () {
echo
echo "$*"
echo
exit 1
}
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "`uname`" in
CYGWIN* )
cygwin=true
;;
Darwin* )
darwin=true
;;
MSYS* | MINGW* )
msys=true
;;
NONSTOP* )
nonstop=true
;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD="$JAVA_HOME/jre/sh/java"
else
JAVACMD="$JAVA_HOME/bin/java"
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD="java"
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
MAX_FD_LIMIT=`ulimit -H -n`
if [ $? -eq 0 ] ; then
if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
MAX_FD="$MAX_FD_LIMIT"
fi
ulimit -n $MAX_FD
if [ $? -ne 0 ] ; then
warn "Could not set maximum file descriptor limit: $MAX_FD"
fi
else
warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
fi
fi
# For Darwin, add options to specify how the application appears in the dock
if $darwin; then
GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
fi
# For Cygwin or MSYS, switch paths to Windows format before running java
if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
APP_HOME=`cygpath --path --mixed "$APP_HOME"`
CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
JAVACMD=`cygpath --unix "$JAVACMD"`
# We build the pattern for arguments to be converted via cygpath
ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
SEP=""
for dir in $ROOTDIRSRAW ; do
ROOTDIRS="$ROOTDIRS$SEP$dir"
SEP="|"
done
OURCYGPATTERN="(^($ROOTDIRS))"
# Add a user-defined pattern to the cygpath arguments
if [ "$GRADLE_CYGPATTERN" != "" ] ; then
OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
fi
# Now convert the arguments - kludge to limit ourselves to /bin/sh
i=0
for arg in "$@" ; do
CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
else
eval `echo args$i`="\"$arg\""
fi
i=`expr $i + 1`
done
case $i in
0) set -- ;;
1) set -- "$args0" ;;
2) set -- "$args0" "$args1" ;;
3) set -- "$args0" "$args1" "$args2" ;;
4) set -- "$args0" "$args1" "$args2" "$args3" ;;
5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
esac
fi
# Escape application args
save () {
for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
echo " "
}
APP_ARGS=`save "$@"`
# Collect all arguments for the java command, following the shell quoting and substitution rules
eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
exec "$JAVACMD" "$@"

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gradlew.bat vendored Normal file
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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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settings.gradle Normal file
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rootProject.name = 'jdbc-template'

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src/main/java/ru/di9/jdbc/AbstractEntity.java Normal file
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package ru.di9.jdbc;
import lombok.Getter;
import lombok.Setter;
@Getter
@Setter
public class AbstractEntity<T> {
protected T id;
}

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src/main/java/ru/di9/jdbc/DataAccessException.java Normal file
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package ru.di9.jdbc;
import lombok.Getter;
@Getter
public class DataAccessException extends RuntimeException {
@SuppressWarnings("java:S1165")
private String sql;
public DataAccessException(String msg, Throwable cause) {
super(msg, cause);
}
public DataAccessException(String msg, String sql, Throwable cause) {
this(msg + " | " + sql, cause);
this.sql = sql;
}
}

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src/main/java/ru/di9/jdbc/JdbcTemplate.java Normal file
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package ru.di9.jdbc;
import org.intellij.lang.annotations.Language;
import java.util.List;
import java.util.Optional;
import java.util.function.Consumer;
public interface JdbcTemplate {
void execute(@Language("GenericSQL") String sql) throws DataAccessException;
void execute(@Language("GenericSQL") String sql, PreparedStatementProcessor psp) throws DataAccessException;
<T> T query(@Language("GenericSQL") String sql, ResultSetExtractor<T> rse) throws DataAccessException;
<T> T query(@Language("GenericSQL") String sql, PreparedStatementProcessor psp, ResultSetExtractor<T> rse)
throws DataAccessException;
<T> Optional<T> queryOne(@Language("GenericSQL") String sql, ResultSetExtractor<T> rse)
throws DataAccessException;
<T> Optional<T> queryOne(@Language("GenericSQL") String sql, PreparedStatementProcessor psp,
ResultSetExtractor<T> rse) throws DataAccessException;
<T> List<T> queryList(@Language("GenericSQL") String sql,
final RowMapper<T> rowMapper) throws DataAccessException;
<T> List<T> queryList(@Language("GenericSQL") String sql, PreparedStatementProcessor psp,
final RowMapper<T> rowMapper) throws DataAccessException;
<T> T insert(@Language("GenericSQL") String sql, PreparedStatementProcessor psp,
ResultSetExtractor<T> processGeneratedKey) throws DataAccessException;
void transaction(Consumer<JdbcTemplate> consumer);
}

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src/main/java/ru/di9/jdbc/JdbcTemplateImpl.java Normal file
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package ru.di9.jdbc;
import org.intellij.lang.annotations.Language;
import javax.sql.DataSource;
import java.sql.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.function.Consumer;
public class JdbcTemplateImpl implements JdbcTemplate {
private final DataSource dataSource;
public JdbcTemplateImpl(DataSource dataSource) {
this.dataSource = dataSource;
}
@Override
public void execute(@Language("GenericSQL") String sql) throws DataAccessException {
try (Connection connection = dataSource.getConnection();
Statement statement = connection.createStatement()) {
statement.execute(sql);
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public void execute(@Language("GenericSQL") String sql, PreparedStatementProcessor psp) throws DataAccessException {
try (Connection connection = dataSource.getConnection();
PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
psp.process(preparedStatement);
preparedStatement.execute();
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public <T> T query(@Language("GenericSQL") String sql, ResultSetExtractor<T> rse) throws DataAccessException {
try (Connection connection = dataSource.getConnection();
Statement statement = connection.createStatement();
ResultSet resultSet = statement.executeQuery(sql)) {
return rse.extractData(resultSet);
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public <T> T query(@Language("GenericSQL") String sql, PreparedStatementProcessor psp,
ResultSetExtractor<T> rse) throws DataAccessException {
try (Connection connection = dataSource.getConnection();
PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
psp.process(preparedStatement);
try (ResultSet resultSet = preparedStatement.executeQuery()) {
return rse.extractData(resultSet);
}
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public <T> Optional<T> queryOne(@Language("GenericSQL") String sql,
ResultSetExtractor<T> rse) throws DataAccessException {
return query(sql, rs -> {
if (rs.next()) {
return Optional.ofNullable(rse.extractData(rs));
} else {
return Optional.empty();
}
});
}
@Override
public <T> Optional<T> queryOne(@Language("GenericSQL") String sql, PreparedStatementProcessor psp,
ResultSetExtractor<T> rse) throws DataAccessException {
return query(sql, psp, rs -> {
if (rs.next()) {
return Optional.ofNullable(rse.extractData(rs));
} else {
return Optional.empty();
}
});
}
@Override
public <T> List<T> queryList(@Language("GenericSQL") String sql,
final RowMapper<T> rowMapper) throws DataAccessException {
return query(sql, createResultSetExtractorList(rowMapper));
}
@Override
public <T> List<T> queryList(@Language("GenericSQL") String sql, PreparedStatementProcessor psp,
final RowMapper<T> rowMapper) throws DataAccessException {
return query(sql, psp, createResultSetExtractorList(rowMapper));
}
@Override
public <T> T insert(@Language("GenericSQL") String sql, PreparedStatementProcessor psp,
ResultSetExtractor<T> processGeneratedKey) throws DataAccessException {
try (Connection connection = dataSource.getConnection();
PreparedStatement preparedStatement = connection.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS)) {
psp.process(preparedStatement);
preparedStatement.execute();
try (ResultSet generatedKeys = preparedStatement.getGeneratedKeys()) {
generatedKeys.next();
return processGeneratedKey.extractData(generatedKeys);
}
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public void transaction(Consumer<JdbcTemplate> consumer) {
Connection connection = null;
try {
connection = dataSource.getConnection();
connection.createStatement().execute("BEGIN TRANSACTION");
consumer.accept(new JdbcTemplateTransactional(connection));
connection.createStatement().execute("COMMIT");
} catch (SQLException e) {
if (connection != null) {
try {
connection.createStatement().execute("ROLLBACK");
throw new DataAccessException("Error transaction", e);
} catch (SQLException e1) {
DataAccessException exception = new DataAccessException("Error rollback", e1);
exception.addSuppressed(e1);
throw exception;
}
}
} finally {
if (connection != null) {
try {
connection.close();
} catch (SQLException e) {
throw new DataAccessException("Error close connection", e);
}
}
}
}
private <T> ResultSetExtractor<List<T>> createResultSetExtractorList(final RowMapper<T> rowMapper) {
return rs -> {
List<T> resultList;
int rowNum = 0;
if (rs.next()) {
resultList = new ArrayList<>();
do {
resultList.add(rowMapper.mapRow(rs, rowNum++));
} while (rs.next());
} else {
resultList = Collections.emptyList();
}
return resultList;
};
}
static DataAccessException throwDataAccessException(String sql, Exception e) {
return new DataAccessException("Error execute SQL", sql, e);
}
}

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src/main/java/ru/di9/jdbc/JdbcTemplateTransactional.java Normal file
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package ru.di9.jdbc;
import lombok.RequiredArgsConstructor;
import java.sql.*;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Optional;
import java.util.function.Consumer;
import static ru.di9.jdbc.JdbcTemplateImpl.throwDataAccessException;
@RequiredArgsConstructor
public class JdbcTemplateTransactional implements JdbcTemplate, AutoCloseable {
private final Connection connection;
@Override
public void close() throws Exception {
connection.close();
}
@Override
public void execute(String sql) throws DataAccessException {
try (Statement statement = connection.createStatement()) {
statement.execute(sql);
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public void execute(String sql, PreparedStatementProcessor psp) throws DataAccessException {
try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
psp.process(preparedStatement);
preparedStatement.execute();
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public <T> T query(String sql, ResultSetExtractor<T> rse) throws DataAccessException {
try (Statement statement = connection.createStatement();
ResultSet resultSet = statement.executeQuery(sql)) {
return rse.extractData(resultSet);
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public <T> T query(String sql, PreparedStatementProcessor psp, ResultSetExtractor<T> rse) throws DataAccessException {
try (PreparedStatement preparedStatement = connection.prepareStatement(sql)) {
psp.process(preparedStatement);
try (ResultSet resultSet = preparedStatement.executeQuery()) {
return rse.extractData(resultSet);
}
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public <T> Optional<T> queryOne(String sql, ResultSetExtractor<T> rse) throws DataAccessException {
return query(sql, rs -> {
if (rs.next()) {
return Optional.ofNullable(rse.extractData(rs));
} else {
return Optional.empty();
}
});
}
@Override
public <T> Optional<T> queryOne(String sql, PreparedStatementProcessor psp, ResultSetExtractor<T> rse) throws DataAccessException {
return query(sql, psp, rs -> {
if (rs.next()) {
return Optional.ofNullable(rse.extractData(rs));
} else {
return Optional.empty();
}
});
}
@Override
public <T> List<T> queryList(String sql, RowMapper<T> rowMapper) throws DataAccessException {
return query(sql, createResultSetExtractorList(rowMapper));
}
@Override
public <T> List<T> queryList(String sql, PreparedStatementProcessor psp, RowMapper<T> rowMapper) throws DataAccessException {
return query(sql, psp, createResultSetExtractorList(rowMapper));
}
@Override
public <T> T insert(String sql, PreparedStatementProcessor psp, ResultSetExtractor<T> processGeneratedKey) throws DataAccessException {
try (PreparedStatement preparedStatement = connection.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS)) {
psp.process(preparedStatement);
preparedStatement.execute();
try (ResultSet generatedKeys = preparedStatement.getGeneratedKeys()) {
generatedKeys.next();
return processGeneratedKey.extractData(generatedKeys);
}
} catch (SQLException e) {
throw throwDataAccessException(sql, e);
}
}
@Override
public void transaction(Consumer<JdbcTemplate> consumer) {
consumer.accept(this);
}
private <T> ResultSetExtractor<List<T>> createResultSetExtractorList(final RowMapper<T> rowMapper) {
return rs -> {
List<T> resultList;
int rowNum = 0;
if (rs.next()) {
resultList = new ArrayList<>();
do {
resultList.add(rowMapper.mapRow(rs, rowNum++));
} while (rs.next());
} else {
resultList = Collections.emptyList();
}
return resultList;
};
}
}

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src/main/java/ru/di9/jdbc/PreparedStatementProcessor.java Normal file
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package ru.di9.jdbc;
import java.sql.PreparedStatement;
import java.sql.SQLException;
@FunctionalInterface
public interface PreparedStatementProcessor {
void process(PreparedStatement ps) throws SQLException;
}

10
src/main/java/ru/di9/jdbc/ResultSetExtractor.java Normal file
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package ru.di9.jdbc;
import java.sql.ResultSet;
import java.sql.SQLException;
@FunctionalInterface
public interface ResultSetExtractor<T> {
T extractData(ResultSet rs) throws SQLException, DataAccessException;
}

10
src/main/java/ru/di9/jdbc/ReturnGeneratedKeyHelper.java Normal file
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package ru.di9.jdbc;
import lombok.AccessLevel;
import lombok.NoArgsConstructor;
@NoArgsConstructor(access = AccessLevel.PRIVATE)
public class ReturnGeneratedKeyHelper {
public static final ResultSetExtractor<Long> RETURN_GENERATED_KEY_FIRST_LONG = rs -> rs.getLong(1);
public static final ResultSetExtractor<Integer> RETURN_GENERATED_KEY_FIRST_INT = rs -> rs.getInt(1);
}

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src/main/java/ru/di9/jdbc/RowMapper.java Normal file
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package ru.di9.jdbc;
import java.sql.ResultSet;
import java.sql.SQLException;
public interface RowMapper<T> {
T mapRow(ResultSet rs, int rowNum) throws SQLException;
}