initial commit

main
Jörg Prante 2 years ago
commit 21556e171e

13
.gitignore vendored

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/data
/work
/logs
/.idea
/target
.DS_Store
*.iml
/.settings
/.classpath
/.project
/.gradle
build
out

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Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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"License" shall mean the terms and conditions for use, reproduction, and
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APPENDIX: How to apply the Apache License to your work
To apply the Apache License to your work, attach the following boilerplate
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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.

@ -0,0 +1,7 @@
This work is based upon
https://github.com/susom/database
as of 28 Dec 2021
License: Apache 2.0

@ -0,0 +1,32 @@
plugins {
id "de.marcphilipp.nexus-publish" version "0.4.0"
id "io.codearte.nexus-staging" version "0.21.1"
}
wrapper {
gradleVersion = "${project.property('gradle.wrapper.version')}"
distributionType = Wrapper.DistributionType.ALL
}
ext {
user = 'jprante'
name = 'database'
description = 'JDBC connection pool and utilities'
inceptionYear = '2018'
url = 'https://github.com/' + user + '/' + name
scmUrl = 'https://github.com/' + user + '/' + name
scmConnection = 'scm:git:git://github.com/' + user + '/' + name + '.git'
scmDeveloperConnection = 'scm:git:ssh://git@github.com:' + user + '/' + name + '.git'
issueManagementSystem = 'Github'
issueManagementUrl = ext.scmUrl + '/issues'
licenseName = 'The Apache License, Version 2.0'
licenseUrl = 'http://www.apache.org/licenses/LICENSE-2.0.txt'
}
subprojects {
apply plugin: 'java-library'
apply from: rootProject.file('gradle/ide/idea.gradle')
apply from: rootProject.file('gradle/compile/java.gradle')
apply from: rootProject.file('gradle/test/junit5.gradle')
apply from: rootProject.file('gradle/publishing/publication.gradle')
}

@ -0,0 +1,11 @@
group = org.xbib
name = database
version = 0.0.1
org.gradle.warning.mode = ALL
gradle.wrapper.version = 7.3.2
h2.version = 1.4.200
mockito.version = 3.3.3
testcontainers.version = 1.16.2
derby.version = 10.15.2.0
oracle-client.version = 21.4.0.0

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apply plugin: 'java-library'
java {
modularity.inferModulePath.set(true)
}
compileJava {
sourceCompatibility = JavaVersion.VERSION_11
targetCompatibility = JavaVersion.VERSION_11
}
compileTestJava {
sourceCompatibility = JavaVersion.VERSION_11
targetCompatibility = JavaVersion.VERSION_11
}
jar {
manifest {
attributes('Implementation-Version': project.version)
}
}
task sourcesJar(type: Jar, dependsOn: classes) {
classifier 'sources'
from sourceSets.main.allSource
}
task javadocJar(type: Jar, dependsOn: javadoc) {
classifier 'javadoc'
}
artifacts {
archives sourcesJar, javadocJar
}
tasks.withType(JavaCompile) {
options.compilerArgs << '-Xlint:all,-fallthrough'
}
javadoc {
options.addStringOption('Xdoclint:none', '-quiet')
}

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apply plugin: 'org.xbib.gradle.plugin.asciidoctor'
configurations {
asciidoclet
}
dependencies {
asciidoclet "org.asciidoctor:asciidoclet:${project.property('asciidoclet.version')}"
}
asciidoctor {
backends 'html5'
outputDir = file("${rootProject.projectDir}/docs")
separateOutputDirs = false
attributes 'source-highlighter': 'coderay',
idprefix: '',
idseparator: '-',
toc: 'left',
doctype: 'book',
icons: 'font',
encoding: 'utf-8',
sectlink: true,
sectanchors: true,
linkattrs: true,
imagesdir: 'img',
stylesheet: "${projectDir}/src/docs/asciidoc/css/foundation.css"
}
/*javadoc {
options.docletpath = configurations.asciidoclet.files.asType(List)
options.doclet = 'org.asciidoctor.Asciidoclet'
//options.overview = "src/docs/asciidoclet/overview.adoc"
options.addStringOption "-base-dir", "${projectDir}"
options.addStringOption "-attribute",
"name=${project.name},version=${project.version},title-link=https://github.com/xbib/${project.name}"
configure(options) {
noTimestamp = true
}
}*/
/*javadoc {
options.docletpath = configurations.asciidoclet.files.asType(List)
options.doclet = 'org.asciidoctor.Asciidoclet'
options.overview = "${rootProject.projectDir}/src/docs/asciidoclet/overview.adoc"
options.addStringOption "-base-dir", "${projectDir}"
options.addStringOption "-attribute",
"name=${project.name},version=${project.version},title-link=https://github.com/xbib/${project.name}"
options.destinationDirectory(file("${projectDir}/docs/javadoc"))
configure(options) {
noTimestamp = true
}
}*/

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apply plugin: 'idea'
idea {
module {
outputDir file('build/classes/java/main')
testOutputDir file('build/classes/java/test')
}
}
if (project.convention.findPlugin(JavaPluginConvention)) {
//sourceSets.main.output.classesDirs = file("build/classes/java/main")
//sourceSets.test.output.classesDirs = file("build/classes/java/test")
}

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apply plugin: "de.marcphilipp.nexus-publish"
publishing {
publications {
mavenJava(MavenPublication) {
from components.java
artifact sourcesJar
artifact javadocJar
pom {
name = project.name
description = rootProject.ext.description
url = rootProject.ext.url
inceptionYear = rootProject.ext.inceptionYear
packaging = 'jar'
organization {
name = 'xbib'
url = 'https://xbib.org'
}
developers {
developer {
id = 'jprante'
name = 'Jörg Prante'
email = 'joergprante@gmail.com'
url = 'https://github.com/jprante'
}
}
scm {
url = rootProject.ext.scmUrl
connection = rootProject.ext.scmConnection
developerConnection = rootProject.ext.scmDeveloperConnection
}
issueManagement {
system = rootProject.ext.issueManagementSystem
url = rootProject.ext.issueManagementUrl
}
licenses {
license {
name = rootProject.ext.licenseName
url = rootProject.ext.licenseUrl
distribution = 'repo'
}
}
}
}
}
}
if (project.hasProperty("signing.keyId")) {
apply plugin: 'signing'
signing {
sign publishing.publications.mavenJava
}
}
nexusPublishing {
repositories {
sonatype {
username = project.property('ossrhUsername')
password = project.property('ossrhPassword')
packageGroup = "org.xbib"
}
}
}

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if (project.hasProperty('ossrhUsername') && project.hasProperty('ossrhPassword')) {
apply plugin: 'io.codearte.nexus-staging'
nexusStaging {
username = project.property('ossrhUsername')
password = project.property('ossrhPassword')
packageGroup = "org.xbib"
}
}

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def junitVersion = project.hasProperty('junit.version')?project.property('junit.version'):'5.6.2'
def hamcrestVersion = project.hasProperty('hamcrest.version')?project.property('hamcrest.version'):'2.2'
dependencies {
testImplementation "org.junit.jupiter:junit-jupiter-api:${junitVersion}"
testImplementation "org.junit.jupiter:junit-jupiter-params:${junitVersion}"
testImplementation "org.hamcrest:hamcrest-library:${hamcrestVersion}"
testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:${junitVersion}"
}
test {
useJUnitPlatform()
failFast = false
testLogging {
events 'STARTED', 'PASSED', 'FAILED', 'SKIPPED'
}
afterSuite { desc, result ->
if (!desc.parent) {
println "\nTest result: ${result.resultType}"
println "Test summary: ${result.testCount} tests, " +
"${result.successfulTestCount} succeeded, " +
"${result.failedTestCount} failed, " +
"${result.skippedTestCount} skipped"
}
}
}

Binary file not shown.

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distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-7.3.2-all.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

234
gradlew vendored

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#!/bin/sh
#
# Copyright © 2015-2021 the original 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 POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
APP_NAME="Gradle"
APP_BASE_NAME=${0##*/}
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( 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" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# Collect all arguments for the java command;
# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
# shell script including quotes and variable substitutions, so put them in
# double quotes to make sure that they get re-expanded; and
# * put everything else in single quotes, so that it's not re-expanded.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
org.gradle.wrapper.GradleWrapperMain \
"$@"
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"

89
gradlew.bat vendored

@ -0,0 +1,89 @@
@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

@ -0,0 +1,26 @@
This connection pool implementation is a derived work from HikariCP Version 3.4.5 (May 2020)
https://github.com/brettwooldridge/HikariCP
published under Apache 2.0 License.
Motivations for the derived work:
- remove all dependencies
- remove everything with metrics
- remove everything with JMX
- remove everything with slf4j logging
- remove everything with OSGI, Hibernate, Spring, JNDI
- remove everything with javassist
- remove everything with suspend/resume
- fix module-info.java
- remove MacOS "milli second" clock
- clean up source code, packages, inheritances, inner classes refactoring, get rid of helper classes
- no system property dark magic
- no addDataSourceProperty magic, pass a Properties object always to PoolConfig which contains JDBC driver properties
- Java 11+
- JUnit 5+
- Gradle 6.4+
The result is an 88k jar.

@ -0,0 +1,4 @@
dependencies {
testImplementation "com.h2database:h2:${project.property('h2.version')}"
testImplementation "org.mockito:mockito-core:${project.property('mockito.version')}"
}

@ -0,0 +1,6 @@
module org.xbib.jdbc.connection.pool {
requires java.logging;
requires transitive java.sql;
exports org.xbib.jdbc.connection.pool;
exports org.xbib.jdbc.connection.pool.util;
}

@ -0,0 +1,20 @@
package org.xbib.jdbc.connection.pool;
public enum IsolationLevel {
TRANSACTION_NONE(0),
TRANSACTION_READ_UNCOMMITTED(1),
TRANSACTION_READ_COMMITTED(2),
TRANSACTION_REPEATABLE_READ(4),
TRANSACTION_SERIALIZABLE(8),
TRANSACTION_SQL_SERVER_SNAPSHOT_ISOLATION_LEVEL(4096);
private final int levelId;
IsolationLevel(int levelId) {
this.levelId = levelId;
}
public int getLevelId() {
return levelId;
}
}

@ -0,0 +1,666 @@
package org.xbib.jdbc.connection.pool;
import java.sql.Connection;
import java.util.Properties;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicLong;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.sql.DataSource;
public class PoolConfig {
private static final Logger logger = Logger.getLogger(PoolConfig.class.getName());
private static final AtomicLong POOL_COUNTER = new AtomicLong();
private static final long CONNECTION_TIMEOUT = TimeUnit.SECONDS.toMillis(30);
private static final long VALIDATION_TIMEOUT = TimeUnit.SECONDS.toMillis(5);
private static final long IDLE_TIMEOUT = TimeUnit.MINUTES.toMillis(10);
private static final long MAX_LIFETIME = TimeUnit.MINUTES.toMillis(30);
private static final int DEFAULT_POOL_SIZE = 8;
private final Properties properties;
private volatile long connectionTimeout;
private volatile long validationTimeout;
private volatile long idleTimeout;
private volatile long leakDetectionThreshold;
private volatile long maxLifetime;
private volatile int maxPoolSize;
private volatile int minIdle;
private volatile String username;
private volatile String password;
private long initializationFailTimeout;
private String connectionInitSql;
private String connectionTestQuery;
private String dataSourceClassName;
private String driverClassName;
private String jdbcUrl;
private String poolName;
private String catalog;
private String schema;
private String transactionIsolationName;
private boolean isAutoCommit;
private boolean isReadOnly;
private boolean isIsolateInternalQueries;
private boolean isAllowPoolSuspension;
private long aliveBypassWindowMs;
private long housekeepingPeriodMs;
private DataSource dataSource;
private ThreadFactory threadFactory;
private ScheduledExecutorService scheduledExecutor;
/**
* Default constructor
*/
public PoolConfig() {
this(new Properties());
}
/**
* Construct a {@link PoolConfig} from the specified properties object.
*
* @param properties the name of the property file
*/
public PoolConfig(Properties properties) {
this.properties = properties;
this.minIdle = -1;
this.maxPoolSize = -1;
this.maxLifetime = MAX_LIFETIME;
this.connectionTimeout = CONNECTION_TIMEOUT;
this.validationTimeout = VALIDATION_TIMEOUT;
this.idleTimeout = IDLE_TIMEOUT;
this.initializationFailTimeout = -1;
this.isAutoCommit = true;
this.jdbcUrl = properties.getProperty("url");
this.aliveBypassWindowMs = TimeUnit.MILLISECONDS.toMillis(500);
this.housekeepingPeriodMs = TimeUnit.SECONDS.toMillis(30);
}
public String getCatalog() {
return catalog;
}
public void setCatalog(String catalog) {
this.catalog = catalog;
}
public long getConnectionTimeout() {
return connectionTimeout;
}
public void setConnectionTimeout(long connectionTimeoutMs) {
if (connectionTimeoutMs == 0) {
this.connectionTimeout = Integer.MAX_VALUE;
} else if (connectionTimeoutMs < 250) {
throw new IllegalArgumentException("connectionTimeout cannot be less than 250ms");
} else {
this.connectionTimeout = connectionTimeoutMs;
}
}
public long getIdleTimeout() {
return idleTimeout;
}
public void setIdleTimeout(long idleTimeoutMs) {
if (idleTimeoutMs < 0) {
throw new IllegalArgumentException("idleTimeout cannot be negative");
}
this.idleTimeout = idleTimeoutMs;
}
public long getLeakDetectionThreshold() {
return leakDetectionThreshold;
}
public void setLeakDetectionThreshold(long leakDetectionThresholdMs) {
this.leakDetectionThreshold = leakDetectionThresholdMs;
}
public long getMaxLifetime() {
return maxLifetime;
}
public void setMaxLifetime(long maxLifetimeMs) {
this.maxLifetime = maxLifetimeMs;
}
public int getMaximumPoolSize() {
return maxPoolSize;
}
public void setMaximumPoolSize(int maxPoolSize) {
if (maxPoolSize < 1) {
throw new IllegalArgumentException("maxPoolSize cannot be less than 1");
}
this.maxPoolSize = maxPoolSize;
}
public int getMinimumIdle() {
return minIdle;
}
public void setMinimumIdle(int minIdle) {
if (minIdle < 0) {
throw new IllegalArgumentException("minimumIdle cannot be negative");
}
this.minIdle = minIdle;
}
/**
* Get the default password to use for DataSource.getConnection(username, password) calls.
*
* @return the password
*/
public String getPassword() {
return password;
}
/**
* Set the default password to use for DataSource.getConnection(username, password) calls.
*
* @param password the password
*/
public void setPassword(String password) {
this.password = password;
}
/**
* Get the default username used for DataSource.getConnection(username, password) calls.
*
* @return the username
*/
public String getUsername() {
return username;
}
/**
* Set the default username used for DataSource.getConnection(username, password) calls.
*
* @param username the username
*/
public void setUsername(String username) {
this.username = username;
}
public long getValidationTimeout() {
return validationTimeout;
}
public void setValidationTimeout(long validationTimeoutMs) {
if (validationTimeoutMs < 250) {
throw new IllegalArgumentException("validationTimeout cannot be less than 250ms");
}
this.validationTimeout = validationTimeoutMs;
}
/**
* Get the SQL query to be executed to test the validity of connections.
*
* @return the SQL query string, or null
*/
public String getConnectionTestQuery() {
return connectionTestQuery;
}
/**
* Set the SQL query to be executed to test the validity of connections. Using
* the JDBC4 <code>Connection.isValid()</code> method to test connection validity can
* be more efficient on some databases and is recommended.
*
* @param connectionTestQuery a SQL query string
*/
public void setConnectionTestQuery(String connectionTestQuery) {
this.connectionTestQuery = connectionTestQuery;
}
/**
* Get the SQL string that will be executed on all new connections when they are
* created, before they are added to the pool.
*
* @return the SQL to execute on new connections, or null
*/
public String getConnectionInitSql() {
return connectionInitSql;
}
/**
* Set the SQL string that will be executed on all new connections when they are
* created, before they are added to the pool. If this query fails, it will be
* treated as a failed connection attempt.
*
* @param connectionInitSql the SQL to execute on new connections
*/
public void setConnectionInitSql(String connectionInitSql) {
this.connectionInitSql = connectionInitSql;
}
/**
* Get the {@link DataSource} that has been explicitly specified to be wrapped by the
* pool.
*
* @return the {@link DataSource} instance, or null
*/
public DataSource getDataSource() {
return dataSource;
}
/**
* Set a {@link DataSource} for the pool to explicitly wrap. This setter is not
* available through property file based initialization.
*
* @param dataSource a specific {@link DataSource} to be wrapped by the pool
*/
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
/**
* Get the name of the JDBC {@link DataSource} class used to create Connections.
*
* @return the fully qualified name of the JDBC {@link DataSource} class
*/
public String getDataSourceClassName() {
return dataSourceClassName;
}
/**
* Set the fully qualified class name of the JDBC {@link DataSource} that will be used create Connections.
*
* @param className the fully qualified name of the JDBC {@link DataSource} class
*/
public void setDataSourceClassName(String className) {
this.dataSourceClassName = className;
}
public Properties getProperties() {
return properties;
}
public String getDriverClassName() {
return driverClassName;
}
public void setDriverClassName(String driverClassName) {
Class<?> driverClass = attemptFromContextLoader(driverClassName);
try {
if (driverClass == null) {
driverClass = this.getClass().getClassLoader().loadClass(driverClassName);
logger.log(Level.FINE, () -> "driver class found in the PoolConfig class classloader: " + driverClassName + " " + this.getClass().getClassLoader());
}
} catch (ClassNotFoundException e) {
logger.log(Level.SEVERE, "failed to load driver class from PoolConfig class classloader: " + driverClassName + " " + this.getClass().getClassLoader());
}
if (driverClass == null) {
throw new RuntimeException("failed to load driver class " + driverClassName + " in either of PoolConfig class loader or Thread context classloader");
}
try {
driverClass.getConstructor().newInstance();
this.driverClassName = driverClassName;
} catch (Exception e) {
throw new RuntimeException("Failed to instantiate class " + driverClassName, e);
}
}
/**
* Get the default auto-commit behavior of connections in the pool.
*
* @return the default auto-commit behavior of connections
*/
public boolean isAutoCommit() {
return isAutoCommit;
}
/**
* Set the default auto-commit behavior of connections in the pool.
*
* @param isAutoCommit the desired auto-commit default for connections
*/
public void setAutoCommit(boolean isAutoCommit) {
this.isAutoCommit = isAutoCommit;
}
/**
* Get the pool suspension behavior (allowed or disallowed).
*
* @return the pool suspension behavior
*/
public boolean isAllowPoolSuspension() {
return isAllowPoolSuspension;
}
/**
* Set whether or not pool suspension is allowed. There is a performance
* impact when pool suspension is enabled. Unless you need it (for a
* redundancy system for example) do not enable it.
*
* @param isAllowPoolSuspension the desired pool suspension allowance
*/
public void setAllowPoolSuspension(boolean isAllowPoolSuspension) {
this.isAllowPoolSuspension = isAllowPoolSuspension;
}
/**
* Get the pool initialization failure timeout. See {@code #setInitializationFailTimeout(long)}
* for details.
*
* @return the number of milliseconds before the pool initialization fails
* @see PoolConfig#setInitializationFailTimeout(long)
*/
public long getInitializationFailTimeout() {
return initializationFailTimeout;
}
/**
* Set the pool initialization failure timeout. This setting applies to pool
* initialization when {@link PoolDataSource} is constructed with a {@link PoolConfig},
* or when {@link PoolDataSource} is constructed using the no-arg constructor
* and {@link PoolDataSource#getConnection()} is called.
* <ul>
* <li>Any value greater than zero will be treated as a timeout for pool initialization.
* The calling thread will be blocked from continuing until a successful connection
* to the database, or until the timeout is reached. If the timeout is reached, then
* a {@code PoolInitializationException} will be thrown. </li>
* <li>A value of zero will <i>not</i> prevent the pool from starting in the
* case that a connection cannot be obtained. However, upon start the pool will
* attempt to obtain a connection and validate that the {@code connectionTestQuery}
* and {@code connectionInitSql} are valid. If those validations fail, an exception
* will be thrown. If a connection cannot be obtained, the validation is skipped
* and the the pool will start and continue to try to obtain connections in the
* background. This can mean that callers to {@code DataSource#getConnection()} may
* encounter exceptions. </li>
* <li>A value less than zero will bypass any connection attempt and validation during
* startup, and therefore the pool will start immediately. The pool will continue to
* try to obtain connections in the background. This can mean that callers to
* {@code DataSource#getConnection()} may encounter exceptions. </li>
* </ul>
* Note that if this timeout value is greater than or equal to zero (0), and therefore an
* initial connection validation is performed, this timeout does not override the
* {@code connectionTimeout} or {@code validationTimeout}; they will be honored before this
* timeout is applied. The default value is one millisecond.
*
* @param initializationFailTimeout the number of milliseconds before the
* pool initialization fails, or 0 to validate connection setup but continue with
* pool start, or less than zero to skip all initialization checks and start the
* pool without delay.
*/
public void setInitializationFailTimeout(long initializationFailTimeout) {
this.initializationFailTimeout = initializationFailTimeout;
}
/**
* Determine whether internal pool queries, principally aliveness checks, will be isolated in their own transaction
* via {@link Connection#rollback()}. Defaults to {@code false}.
*
* @return {@code true} if internal pool queries are isolated, {@code false} if not
*/
public boolean isIsolateInternalQueries() {
return isIsolateInternalQueries;
}
/**
* Configure whether internal pool queries, principally aliveness checks, will be isolated in their own transaction
* via {@link Connection#rollback()}. Defaults to {@code false}.
*
* @param isolate {@code true} if internal pool queries should be isolated, {@code false} if not
*/
public void setIsolateInternalQueries(boolean isolate) {
this.isIsolateInternalQueries = isolate;
}
/**
* Determine whether the Connections in the pool are in read-only mode.
*
* @return {@code true} if the Connections in the pool are read-only, {@code false} if not
*/
public boolean isReadOnly() {
return isReadOnly;
}
/**
* Configures the Connections to be added to the pool as read-only Connections.
*
* @param readOnly {@code true} if the Connections in the pool are read-only, {@code false} if not
*/
public void setReadOnly(boolean readOnly) {
this.isReadOnly = readOnly;
}
public String getPoolName() {
return poolName;
}
/**
* Set the name of the connection pool. This is primarily used for the MBean
* to uniquely identify the pool configuration.
*
* @param poolName the name of the connection pool to use
*/
public void setPoolName(String poolName) {
this.poolName = poolName;
}
/**
* Get the ScheduledExecutorService used for housekeeping.
*
* @return the executor
*/
public ScheduledExecutorService getScheduledExecutor() {
return scheduledExecutor;
}
/**
* Set the ScheduledExecutorService used for housekeeping.
*
* @param executor the ScheduledExecutorService
*/
public void setScheduledExecutor(ScheduledExecutorService executor) {
this.scheduledExecutor = executor;
}
public String getTransactionIsolation() {
return transactionIsolationName;
}
/**
* Get the default schema name to be set on connections.
*
* @return the default schema name
*/
public String getSchema() {
return schema;
}
/**
* Set the default schema name to be set on connections.
*
* @param schema the name of the default schema
*/
public void setSchema(String schema) {
this.schema = schema;
}
/**
* Set the default transaction isolation level. The specified value is the
* constant name from the <code>Connection</code> class, eg.
* <code>TRANSACTION_REPEATABLE_READ</code>.
*
* @param isolationLevel the name of the isolation level
*/
public void setTransactionIsolation(String isolationLevel) {
this.transactionIsolationName = isolationLevel;
}
public void setAliveBypassWindowMs(long aliveBypassWindowMs) {
this.aliveBypassWindowMs = aliveBypassWindowMs;
}
public long getAliveBypassWindowMs() {
return aliveBypassWindowMs;
}
public void setHousekeepingPeriodMs(long housekeepingPeriodMs) {
this.housekeepingPeriodMs = housekeepingPeriodMs;
}
public long getHousekeepingPeriodMs() {
return housekeepingPeriodMs;
}
/**
* Get the thread factory used to create threads.
*
* @return the thread factory (may be null, in which case the default thread factory is used)
*/
public ThreadFactory getThreadFactory() {
return threadFactory;
}
/**
* Set the thread factory to be used to create threads.
*
* @param threadFactory the thread factory (setting to null causes the default thread factory to be used)
*/
public void setThreadFactory(ThreadFactory threadFactory) {
this.threadFactory = threadFactory;
}
private Class<?> attemptFromContextLoader(final String driverClassName) {
final ClassLoader threadContextClassLoader = Thread.currentThread().getContextClassLoader();
if (threadContextClassLoader != null) {
try {
final Class<?> driverClass = threadContextClassLoader.loadClass(driverClassName);
logger.log(Level.FINE, "Driver class found in Thread context class loader:" +
driverClassName + " " + threadContextClassLoader);
return driverClass;
} catch (ClassNotFoundException e) {
logger.log(Level.FINE, "Driver class not found in Thread context class loader, trying classloader: " +
driverClassName + " " + threadContextClassLoader + " " + this.getClass().getClassLoader());
}
}
return null;
}
@SuppressWarnings("StatementWithEmptyBody")
public void validate() {
if (poolName == null) {
poolName = generatePoolName();
}
catalog = getNullIfEmpty(catalog);
connectionInitSql = getNullIfEmpty(connectionInitSql);
connectionTestQuery = getNullIfEmpty(connectionTestQuery);
transactionIsolationName = getNullIfEmpty(transactionIsolationName);
dataSourceClassName = getNullIfEmpty(dataSourceClassName);
driverClassName = getNullIfEmpty(driverClassName);
jdbcUrl = getNullIfEmpty(jdbcUrl);
if (dataSource != null) {
if (dataSourceClassName != null) {
logger.log(Level.WARNING, "using dataSource and ignoring dataSourceClassName: " + poolName);
}
} else if (dataSourceClassName != null) {
if (driverClassName != null) {
logger.log(Level.SEVERE, "cannot use driverClassName and dataSourceClassName together: " + poolName);
throw new IllegalStateException("cannot use driverClassName and dataSourceClassName together.");
} else if (jdbcUrl != null) {
logger.log(Level.WARNING, "using dataSourceClassName and ignoring jdbcUrl: " + poolName);
}
} else if (jdbcUrl != null) {
// ok
} else if (driverClassName != null) {
logger.log(Level.SEVERE, "jdbcUrl is required with driverClassName: " + poolName);
throw new IllegalArgumentException("jdbcUrl is required with driverClassName.");
} else {
logger.log(Level.SEVERE, "dataSource or dataSourceClassName or jdbcUrl is required: " + poolName);
throw new IllegalArgumentException("dataSource or dataSourceClassName or jdbcUrl is required.");
}
validateNumerics();
}
/**
* @return null if string is null or empty
*/
private static String getNullIfEmpty(final String text) {
return text == null ? null : text.trim().isEmpty() ? null : text.trim();
}
private void validateNumerics() {
if (maxLifetime != 0 && maxLifetime < TimeUnit.SECONDS.toMillis(30)) {
logger.log(Level.WARNING, "maxLifetime is less than 30000ms, setting to default ms: " +
poolName + " " + MAX_LIFETIME);
maxLifetime = MAX_LIFETIME;
}
if (leakDetectionThreshold > 0) {
if (leakDetectionThreshold < TimeUnit.SECONDS.toMillis(2) || (leakDetectionThreshold > maxLifetime && maxLifetime > 0)) {
logger.log(Level.WARNING, "leakDetectionThreshold is less than 2000ms or more than maxLifetime, disabling it: " +
poolName);
leakDetectionThreshold = 0;
}
}
if (connectionTimeout < 250) {
logger.log(Level.WARNING, "connectionTimeout is less than 250ms, setting to ms: " +
poolName + " " + CONNECTION_TIMEOUT);
connectionTimeout = CONNECTION_TIMEOUT;
}
if (validationTimeout < 250) {
logger.log(Level.WARNING, "validationTimeout is less than 250ms, setting to ms" +
poolName + " " + VALIDATION_TIMEOUT);
validationTimeout = VALIDATION_TIMEOUT;
}
if (maxPoolSize < 1) {
maxPoolSize = DEFAULT_POOL_SIZE;
}
if (minIdle < 0 || minIdle > maxPoolSize) {
minIdle = maxPoolSize;
}
if (idleTimeout + TimeUnit.SECONDS.toMillis(1) > maxLifetime && maxLifetime > 0 && minIdle < maxPoolSize) {
logger.log(Level.WARNING, "idleTimeout is close to or more than maxLifetime, disabling it:" + poolName);
idleTimeout = 0;
} else if (idleTimeout != 0 && idleTimeout < TimeUnit.SECONDS.toMillis(10) && minIdle < maxPoolSize) {
logger.log(Level.WARNING, "idleTimeout is less than 10000ms, setting to default ms: " +
poolName + " " + IDLE_TIMEOUT);
idleTimeout = IDLE_TIMEOUT;
} else if (idleTimeout != IDLE_TIMEOUT && idleTimeout != 0 && minIdle == maxPoolSize) {
logger.log(Level.WARNING, "idleTimeout has been set but has no effect because the pool is operating as a fixed size pool: " + poolName);
}
}
private static String generatePoolName() {
return "xbib-pool-jdbc-" + POOL_COUNTER.getAndIncrement();
}
}

@ -0,0 +1,224 @@
package org.xbib.jdbc.connection.pool;
import java.io.Closeable;
import java.io.PrintWriter;
import java.lang.reflect.InvocationTargetException;
import java.sql.Connection;
import java.sql.SQLException;
import java.sql.SQLFeatureNotSupportedException;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.sql.DataSource;
/**
* The pooled DataSource.
*/</