Module bus.core

Package org.miaixz.bus.core

Class Context

java.lang.Object

org.miaixz.bus.core.lang.Keys

org.miaixz.bus.core.Context

public class Context
extends Keys

配置属性管理类，用于加载和获取配置属性，支持单例模式

Since:

Java 17+

Author:

Kimi Liu

Field Summary

Fields

Modifier and Type	Field	Description
final Properties	delegate	存储配置属性的 Properties 对象，用于键值对存储
static final Context	INSTANCE	全局唯一实例，静态初始化，确保单例模式

Fields inherited from class org.miaixz.bus.core.lang.Keys

BUS, DATE_LENIENT, FILE_ENCODING, FILE_SEPARATOR, IS_ANDROID, IS_AT_LEAST_JDK17, IS_GRAALVM_NATIVE, IS_OPENJ9, JAVA_BEANS_TRANSIENT, JAVA_CLASS_PATH, JAVA_CLASS_VERSION, JAVA_COMPILER, JAVA_ENDORSED_DIRS, JAVA_EXT_DIRS, JAVA_HOME, JAVA_IO_TMPDIR, JAVA_LIBRARY_PATH, JAVA_RUNTIME_NAME, JAVA_RUNTIME_VERSION, JAVA_SPECIFICATION_NAME, JAVA_SPECIFICATION_VENDOR, JAVA_SPECIFICATION_VERSION, JAVA_VENDOR, JAVA_VENDOR_URL, JAVA_VERSION, JAVA_VM_INFO, JAVA_VM_NAME, JAVA_VM_SPECIFICATION_NAME, JAVA_VM_SPECIFICATION_VENDOR, JAVA_VM_SPECIFICATION_VERSION, JAVA_VM_VENDOR, JAVA_VM_VERSION, JVM_VERSION, LINE_SEPARATOR, NAME, OS_ARCH, OS_NAME, OS_VERSION, PATH_SEPARATOR, SUN_ARCH_DATA_MODEL, SUN_BOOT_CLASS_PATH, USER_COUNTRY, USER_DIR, USER_HOME, USER_LANGUAGE, USER_NAME, USER_REGION, VERSION

Constructor Summary

Constructors

Constructor	Description
Context()	私有构造方法，防止外部实例化，确保单例
Context(Properties properties)

Method Summary

Modifier and Type	Method	Description
String	getProperty(String key)	获取指定键的属性值
boolean	getProperty(String key, boolean defaultValue)	获取指定键的布尔型属性值，若不存在返回默认值
int	getProperty(String key, int defaultValue)	获取指定键的整型属性值，若不存在或无法转换返回默认值
String	getProperty(String key, String defaultValue)	获取指定键的属性值，若不存在返回默认值
Map<String,Properties>	group(String group)	按分组前缀获取配置属性，返回分组后的属性映射
Set<String>	keys()
static Context	newInstance(Properties properties)
void	putAll(Properties properties)	设置配置属性，将外部 Properties 对象合并到内部 delegate 中
Context	whenNotBlank(String key, Consumer<String> consumer)
<T> Context	whenNotBlank(String key, Function<String,T> function, Consumer<T> consumer)

Methods inherited from class org.miaixz.bus.core.lang.Keys

_getJvmVersion, get, get, get, getAttributes, getBoolean, getInt, getJavaClassPaths, getLong, getProps, getQuietly, getTmpDirPath, getUserHomePath, set

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

INSTANCE

public static final Context INSTANCE

全局唯一实例，静态初始化，确保单例模式

delegate

public final Properties delegate

存储配置属性的 Properties 对象，用于键值对存储

Constructor Details

Context

public Context()

私有构造方法，防止外部实例化，确保单例

Context

public Context(Properties properties)

Method Details

newInstance

public static Context newInstance(Properties properties)

keys

public Set<String> keys()

putAll

public void putAll(Properties properties)

设置配置属性，将外部 Properties 对象合并到内部 delegate 中

Parameters:

properties - 外部配置属性

getProperty

public String getProperty(String key)

获取指定键的属性值

Parameters:

key - 属性键

Returns:

属性值，若不存在返回 null

getProperty

public String getProperty(String key,
 String defaultValue)

获取指定键的属性值，若不存在返回默认值

Parameters:

key - 属性键

defaultValue - 默认值

Returns:

属性值，若不存在或为空返回默认值

getProperty

public int getProperty(String key,
 int defaultValue)

获取指定键的整型属性值，若不存在或无法转换返回默认值

Parameters:

key - 属性键

defaultValue - 默认值

Returns:

整型属性值，若无法解析返回默认值

getProperty

public boolean getProperty(String key,
 boolean defaultValue)

获取指定键的布尔型属性值，若不存在返回默认值

Parameters:

key - 属性键

defaultValue - 默认值

Returns:

布尔型属性值，若不存在返回默认值

group

public Map<String,Properties> group(String group)

按分组前缀获取配置属性，返回分组后的属性映射

Parameters:

group - 分组前缀

Returns:

分组后的属性映射，若无匹配返回空映射

whenNotBlank

public Context whenNotBlank(String key,
 Consumer<String> consumer)

whenNotBlank

public <T> Context whenNotBlank(String key,
 Function<String,T> function,
 Consumer<T> consumer)