How to change/update/delete a property in ConfigurableEnvironment of Spring
In Spring you can use inject an Environment object to read all environment properties
@Resource
private org.springframework.core.env.Environment environment;
So the question is can I programatically change an value of some property?
The only workaround I see is to get the all MutablePropertySource that holds this property. to remove this source completely from the environment and to add a new PropertySource that contains all properties of the previous one + the changed one (or the removed one).
However this looks ugly and will be slow ;(
spring spring-mvc
asked Sep 25 '14 at 8:21
JOKeJOKe
1,03311227
add a comment |
In Spring you can use inject an Environment object to read all environment properties
@Resource
private org.springframework.core.env.Environment environment;
So the question is can I programatically change an value of some property?
The only workaround I see is to get the all MutablePropertySource that holds this property. to remove this source completely from the environment and to add a new PropertySource that contains all properties of the previous one + the changed one (or the removed one).
However this looks ugly and will be slow ;(
spring spring-mvc
asked Sep 25 '14 at 8:21
JOKeJOKe
1,03311227
Why you want to change a property anyway, properties are supposed to remain constant throughout. Still you can use AOP to do this, in your advice just the parameter value if it matches the key which you want to change just return the new value.
– varun
Sep 25 '14 at 8:36
well I want to give the ability to some "administrator" of my site to change the properties on the fly without restarting and without need to have access to the property file or the machine.
– JOKe
Sep 25 '14 at 9:20
and this actually updates the value in property file?
– varun
Sep 25 '14 at 9:28
add a comment |
In Spring you can use inject an Environment object to read all environment properties
@Resource
private org.springframework.core.env.Environment environment;
So the question is can I programatically change an value of some property?
The only workaround I see is to get the all MutablePropertySource that holds this property. to remove this source completely from the environment and to add a new PropertySource that contains all properties of the previous one + the changed one (or the removed one).
However this looks ugly and will be slow ;(
spring spring-mvc
asked Sep 25 '14 at 8:21
JOKeJOKe
1,03311227
In Spring you can use inject an Environment object to read all environment properties
@Resource
private org.springframework.core.env.Environment environment;
So the question is can I programatically change an value of some property?
The only workaround I see is to get the all MutablePropertySource that holds this property. to remove this source completely from the environment and to add a new PropertySource that contains all properties of the previous one + the changed one (or the removed one).
However this looks ugly and will be slow ;(
spring spring-mvc
spring spring-mvc
asked Sep 25 '14 at 8:21
JOKeJOKe
1,03311227
asked Sep 25 '14 at 8:21
JOKeJOKe
1,03311227
asked Sep 25 '14 at 8:21
JOKeJOKe
1,03311227
asked Sep 25 '14 at 8:21
JOKeJOKe
1,03311227
asked Sep 25 '14 at 8:21
JOKeJOKe
1,03311227
1,03311227
Why you want to change a property anyway, properties are supposed to remain constant throughout. Still you can use AOP to do this, in your advice just the parameter value if it matches the key which you want to change just return the new value.
– varun
Sep 25 '14 at 8:36
well I want to give the ability to some "administrator" of my site to change the properties on the fly without restarting and without need to have access to the property file or the machine.
– JOKe
Sep 25 '14 at 9:20
and this actually updates the value in property file?
– varun
Sep 25 '14 at 9:28
add a comment |
Why you want to change a property anyway, properties are supposed to remain constant throughout. Still you can use AOP to do this, in your advice just the parameter value if it matches the key which you want to change just return the new value.
– varun
Sep 25 '14 at 8:36
well I want to give the ability to some "administrator" of my site to change the properties on the fly without restarting and without need to have access to the property file or the machine.
– JOKe
Sep 25 '14 at 9:20
and this actually updates the value in property file?
– varun
Sep 25 '14 at 9:28
Why you want to change a property anyway, properties are supposed to remain constant throughout. Still you can use AOP to do this, in your advice just the parameter value if it matches the key which you want to change just return the new value.
– varun
Sep 25 '14 at 8:36
Why you want to change a property anyway, properties are supposed to remain constant throughout. Still you can use AOP to do this, in your advice just the parameter value if it matches the key which you want to change just return the new value.
– varun
Sep 25 '14 at 8:36
well I want to give the ability to some "administrator" of my site to change the properties on the fly without restarting and without need to have access to the property file or the machine.
– JOKe
Sep 25 '14 at 9:20
well I want to give the ability to some "administrator" of my site to change the properties on the fly without restarting and without need to have access to the property file or the machine.
– JOKe
Sep 25 '14 at 9:20
and this actually updates the value in property file?
– varun
Sep 25 '14 at 9:28
and this actually updates the value in property file?
– varun
Sep 25 '14 at 9:28
add a comment |
2 Answers
2
active
oldest
votes
// ConfigurableEnvironment env
MutablePropertySources propertySources = env.getPropertySources();
Map<String, Object> map = new HashMap<>();
map.put(myObject.getKey(),
myObject.getQuery());
propertySources
.addFirst(new MapPropertySource("newmap", map));
answered Apr 27 '17 at 9:47
user6631150user6631150
363
by this u can add or update a property within environment
– user6631150
Apr 27 '17 at 9:49
Could you please add some explanation to your answer ?
– kaldoran
Apr 27 '17 at 9:55
1
when we got propertySouces from env( ConfigurableEnvironment). we are able to attach multiple properties within a new map object along with data u wanna add or update. and passing to propertySources method will allow u to add/update ur new property.
– user6631150
May 12 '17 at 7:08
add a comment |
Note that 'newmap' in the above answer by @user6631150 is the name of the property file where you want to update/add values.
Also not that this does not change the property file on disk, it only updates it in memory.
Meaning: if you have a property file newmap.properties located in C:/user/app_dir/newmap.properties and you modify it with the above code, you will not see changes in the file at this location. The changes will be in memory only. If your application restarts, no changes will be at the said location.
answered Nov 19 '18 at 21:45
mgibsonmgibson
5924
Yes but this is what I was looking long time ago :D
– JOKe
Dec 7 '18 at 10:45
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
// ConfigurableEnvironment env
MutablePropertySources propertySources = env.getPropertySources();
Map<String, Object> map = new HashMap<>();
map.put(myObject.getKey(),
myObject.getQuery());
propertySources
.addFirst(new MapPropertySource("newmap", map));
answered Apr 27 '17 at 9:47
user6631150user6631150
363
by this u can add or update a property within environment
– user6631150
Apr 27 '17 at 9:49
Could you please add some explanation to your answer ?
– kaldoran
Apr 27 '17 at 9:55
1
when we got propertySouces from env( ConfigurableEnvironment). we are able to attach multiple properties within a new map object along with data u wanna add or update. and passing to propertySources method will allow u to add/update ur new property.
– user6631150
May 12 '17 at 7:08
add a comment |
// ConfigurableEnvironment env
MutablePropertySources propertySources = env.getPropertySources();
Map<String, Object> map = new HashMap<>();
map.put(myObject.getKey(),
myObject.getQuery());
propertySources
.addFirst(new MapPropertySource("newmap", map));
answered Apr 27 '17 at 9:47
user6631150user6631150
363
by this u can add or update a property within environment
– user6631150
Apr 27 '17 at 9:49
Could you please add some explanation to your answer ?
– kaldoran
Apr 27 '17 at 9:55
1
when we got propertySouces from env( ConfigurableEnvironment). we are able to attach multiple properties within a new map object along with data u wanna add or update. and passing to propertySources method will allow u to add/update ur new property.
– user6631150
May 12 '17 at 7:08
add a comment |
// ConfigurableEnvironment env
MutablePropertySources propertySources = env.getPropertySources();
Map<String, Object> map = new HashMap<>();
map.put(myObject.getKey(),
myObject.getQuery());
propertySources
.addFirst(new MapPropertySource("newmap", map));
answered Apr 27 '17 at 9:47
user6631150user6631150
363
// ConfigurableEnvironment env
MutablePropertySources propertySources = env.getPropertySources();
Map<String, Object> map = new HashMap<>();
map.put(myObject.getKey(),
myObject.getQuery());
propertySources
.addFirst(new MapPropertySource("newmap", map));
answered Apr 27 '17 at 9:47
user6631150user6631150
363
answered Apr 27 '17 at 9:47
user6631150user6631150
363
answered Apr 27 '17 at 9:47
user6631150user6631150
363
answered Apr 27 '17 at 9:47
user6631150user6631150
363
363
by this u can add or update a property within environment
– user6631150
Apr 27 '17 at 9:49
Could you please add some explanation to your answer ?
– kaldoran
Apr 27 '17 at 9:55
1
when we got propertySouces from env( ConfigurableEnvironment). we are able to attach multiple properties within a new map object along with data u wanna add or update. and passing to propertySources method will allow u to add/update ur new property.
– user6631150
May 12 '17 at 7:08
add a comment |
by this u can add or update a property within environment
– user6631150
Apr 27 '17 at 9:49
Could you please add some explanation to your answer ?
– kaldoran
Apr 27 '17 at 9:55
1
when we got propertySouces from env( ConfigurableEnvironment). we are able to attach multiple properties within a new map object along with data u wanna add or update. and passing to propertySources method will allow u to add/update ur new property.
– user6631150
May 12 '17 at 7:08
by this u can add or update a property within environment
– user6631150
Apr 27 '17 at 9:49
by this u can add or update a property within environment
– user6631150
Apr 27 '17 at 9:49
Could you please add some explanation to your answer ?
– kaldoran
Apr 27 '17 at 9:55
Could you please add some explanation to your answer ?
– kaldoran
Apr 27 '17 at 9:55
1
1
when we got propertySouces from env( ConfigurableEnvironment). we are able to attach multiple properties within a new map object along with data u wanna add or update. and passing to propertySources method will allow u to add/update ur new property.
– user6631150
May 12 '17 at 7:08
when we got propertySouces from env( ConfigurableEnvironment). we are able to attach multiple properties within a new map object along with data u wanna add or update. and passing to propertySources method will allow u to add/update ur new property.
– user6631150
May 12 '17 at 7:08
add a comment |
Note that 'newmap' in the above answer by @user6631150 is the name of the property file where you want to update/add values.
Also not that this does not change the property file on disk, it only updates it in memory.
Meaning: if you have a property file newmap.properties located in C:/user/app_dir/newmap.properties and you modify it with the above code, you will not see changes in the file at this location. The changes will be in memory only. If your application restarts, no changes will be at the said location.
answered Nov 19 '18 at 21:45
mgibsonmgibson
5924
Yes but this is what I was looking long time ago :D
– JOKe
Dec 7 '18 at 10:45
add a comment |
Note that 'newmap' in the above answer by @user6631150 is the name of the property file where you want to update/add values.
Also not that this does not change the property file on disk, it only updates it in memory.
Meaning: if you have a property file newmap.properties located in C:/user/app_dir/newmap.properties and you modify it with the above code, you will not see changes in the file at this location. The changes will be in memory only. If your application restarts, no changes will be at the said location.
answered Nov 19 '18 at 21:45
mgibsonmgibson
5924
Yes but this is what I was looking long time ago :D
– JOKe
Dec 7 '18 at 10:45
add a comment |
Note that 'newmap' in the above answer by @user6631150 is the name of the property file where you want to update/add values.
Also not that this does not change the property file on disk, it only updates it in memory.
Meaning: if you have a property file newmap.properties located in C:/user/app_dir/newmap.properties and you modify it with the above code, you will not see changes in the file at this location. The changes will be in memory only. If your application restarts, no changes will be at the said location.
answered Nov 19 '18 at 21:45
mgibsonmgibson
5924
Note that 'newmap' in the above answer by @user6631150 is the name of the property file where you want to update/add values.
Also not that this does not change the property file on disk, it only updates it in memory.
Meaning: if you have a property file newmap.properties located in C:/user/app_dir/newmap.properties and you modify it with the above code, you will not see changes in the file at this location. The changes will be in memory only. If your application restarts, no changes will be at the said location.
answered Nov 19 '18 at 21:45
mgibsonmgibson
5924
answered Nov 19 '18 at 21:45
mgibsonmgibson
5924
answered Nov 19 '18 at 21:45
mgibsonmgibson
5924
answered Nov 19 '18 at 21:45
mgibsonmgibson
5924
5924
Yes but this is what I was looking long time ago :D
– JOKe
Dec 7 '18 at 10:45
add a comment |
Yes but this is what I was looking long time ago :D
– JOKe
Dec 7 '18 at 10:45
Yes but this is what I was looking long time ago :D
– JOKe
Dec 7 '18 at 10:45
Yes but this is what I was looking long time ago :D
– JOKe
Dec 7 '18 at 10:45
add a comment |
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Why you want to change a property anyway, properties are supposed to remain constant throughout. Still you can use AOP to do this, in your advice just the parameter value if it matches the key which you want to change just return the new value.
– varun
Sep 25 '14 at 8:36
well I want to give the ability to some "administrator" of my site to change the properties on the fly without restarting and without need to have access to the property file or the machine.
– JOKe
Sep 25 '14 at 9:20
and this actually updates the value in property file?
– varun
Sep 25 '14 at 9:28