Package org.apache.iotdb.it.env.cluster.config

Class MppBaseConfig

java.lang.Object

org.apache.iotdb.it.env.cluster.config.MppBaseConfig

Direct Known Subclasses:

MppCommonConfig, MppConfigNodeConfig, MppDataNodeConfig

public abstract class MppBaseConfig
extends Object

This class stands for a config object of one single property file.

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NULL_VALUE
protected final Properties	properties

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	MppBaseConfig()	Create an empty MppPersistentConfig.
protected	MppBaseConfig(String filePath)	Create a MppPersistentConfig from the property file.

Method Summary

Modifier and Type	Method	Description
abstract MppBaseConfig	emptyClone()	Create an instance but with empty properties.
final void	persistent(String filePath)	Persistent the properties to the file.
protected final void	setProperty(@NotNull String key, String value)	Set a property with the input key and value.
final void	updateProperties(@NotNull Properties properties)	Put all the key-value pairs of input properties to the current instance one.
void	updateProperties(@NotNull MppBaseConfig persistentConfig)	Put all the properties of the input persistent config to the current instance.
final void	updateProperties(String filePath)	Put all the properties of the input file to the current instance.

Methods inherited from class java.lang.Object

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

Field Details

NULL_VALUE

public static final String NULL_VALUE

See Also:

• Constant Field Values

properties

protected final Properties properties

Constructor Details

MppBaseConfig

protected MppBaseConfig()

Create an empty MppPersistentConfig.

MppBaseConfig

protected MppBaseConfig(String filePath)
                 throws IOException

Create a MppPersistentConfig from the property file.

Parameters:

filePath - the property file path.

Throws:

IOException - if load properties failed.

Method Details

updateProperties

public final void updateProperties(@NotNull
 @NotNull Properties properties)

Put all the key-value pairs of input properties to the current instance one. If the key is existed in both, the value will be overridden.

Parameters:

properties - the properties to update with.

updateProperties

public void updateProperties(@NotNull
 @NotNull MppBaseConfig persistentConfig)

Put all the properties of the input persistent config to the current instance. If the key is existed in both, the value will be overridden.

Parameters:

persistentConfig - the config instance to update with.

updateProperties

public final void updateProperties(@Nullable
 String filePath)
                            throws IOException

Put all the properties of the input file to the current instance. If the key is existed in both, the value will be overridden.

Parameters:

filePath - the path of the properties file to update with. If it's null, then nothing will happen.

Throws:

IOException - there's some errors during processing the file.

persistent

public final void persistent(String filePath)
                      throws IOException

Persistent the properties to the file.

Parameters:

filePath - the file path.

Throws:

IOException - if properties storage failed.

setProperty

protected final void setProperty(@NotNull
 @NotNull String key,
 String value)

Set a property with the input key and value. If the key is existed, the value will be overridden. If the value is an empty String, the key will be removed.

Parameters:

key - the key.

value - the value.

emptyClone

public abstract MppBaseConfig emptyClone()

Create an instance but with empty properties.