...
The
...
Central
...
Measurement
...
Repository
...
(a.k.a.
...
CMR)
...
acts
...
as
...
the
...
server
...
component
...
of
...
the
...
inspectIT
...
architecture.
...
Its
...
purpose
...
is
...
to
...
collect
...
the
...
measurements
...
and
...
persist
...
them.
...
The
...
CMR
...
is
...
based
...
on
...
the
...
...
...
...
.
...
The
...
persistence
...
is
...
accomplished
...
by
...
using
...
Hibernate
...
as
...
the
...
persistency
...
layer
...
in
...
Java
...
and
...
h2 as
...
the
...
database.
...
Spring
...
provides
...
an
...
additional
...
abstraction
...
from
...
the
...
Hibernate
...
framework
...
to
...
make
...
it
...
even
...
easier
...
to
...
use.
...
The
...
Spring
...
framework
...
is
...
initialized
...
in
...
the
...
main
...
CMR.java
...
class.
...
Spring
The Spring framework is based on XML files. The main XML file is called beanRefFactory.xml and is located in the root source folder (or the root of the generated jar file). This file is needed to locate the definition of the Beans (currently, these are again specified in different XML files). This additional abstraction is useful to just replace or modify this file for additional definitions without changing the Java class. Currently, three files are referenced in there, all residing in the spring sub-folder:
- spring-context-database.xml:
...
- Everything
...
- related
...
- to
...
- the
...
- database
...
- is
...
- stored
...
- in
...
- there,
...
- like
...
- the
...
- data
...
- source,
...
- session
...
- factory
...
- or
...
- transaction
...
- manager.
...
- spring-context-model.xml:
...
- All
...
- Beans
...
- which
...
- are
...
- persisted
...
- into
...
- the
...
- database
...
- are
...
- contained
...
- in
...
- there.
...
- spring-context-service.xml:
...
- The
...
- service
...
- file
...
- initializes
...
- the
...
- beans
...
- which
...
- are
...
- accessible
...
- from
...
- outside,
...
- thus
...
- they
...
- are
...
- exported
...
- through
...
- a
...
- RMI
...
- exporter
...
- for
...
- example.
...
- spring-context-jetty.xml:
...
- Jetty
...
- is
...
- embedded
...
- in
...
- the
...
- CMR
...
- for
...
- the
...
- data
...
- transmission
...
- to/from
...
- the
...
- User
...
- Interface.
...
- This
...
- context
...
- file
...
- starts
...
- jetty
...
- and
...
- registers
...
- a
...
- servlet
...
- which
...
- is
...
- accessed
...
- by
...
- the
...
- UI.
...
- spring-context-jetty-service.xml:
...
- These
...
- services
...
- are
...
- exposed
...
- through
...
- jetty
...
- and
...
- cannot
...
- be
...
- accessed
...
- from
...
- the
...
- inspectIT
...
- Agent,
...
- thus
...
- the
...
- additional
...
- file.
...
Hibernate
Hibernate is configured through the Spring configuration files. The hbm files, used for the mapping between the classes and the database tables, are standard Hibernate mapping files which can be found in the hibernate sub-folder.
Logging configuration
The second file to configure is named log4j.properties. It defines the logging output of the application. As it is an external library, configuration hints can be found throughout the internet. Some direct links are provided here for faster access:
...
...
- (german)
...
The
...
default
...
configuration
...
used
...
by
...
the
...
CMR
...
is
...
as
...
follows:
| Code Block |
|---|
### direct log messages to stdout ### log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.Target=System.out log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%d{ISO8601} %-5p [%t|%t] %c: %m%n log4j.rootLogger=debug, stdout h1. |
Starting
...
the
...
CMR
...
with
...
Java5
...
The
...
CMR
...
can
...
also
...
be
...
started
...
with
...
Java
...
5.
...
Here
...
is
...
a
...
sample
...
shell
...
script
...
for
...
the
...
startupecho
| Code Block |
|---|
"Please set the NovaSpy CMR HOME folder within this script" export NOVASPY_CMR_HOME=/home/sieglst/NovaSpy/CMR export NOVASPY_CMR_LIB=$NOVASPY_CMR_HOME/lib java \-Xmx2048M \-Xms1024m \-cp novaspy-cmr.jar:$NOVASPY_CMR_LIB/cglib-nodep.jar:$NOVASPY_CMR_LIB/commons-collections.jar:$NOVASPY_CMR_LIB/commons-logging.jar:$NOVASPY_CMR_LIB/dom4j.jar:$NOVASPY_CMR_LIB/hessian.jar:$NOVASPY_CMR_LIB/hibernate.jar:$NOVASPY_CMR_LIB/jetty.jar:$NOVASPY_CMR_LIB/jetty-util.jar:$NOVASPY_CMR_LIB/jta.jar:$NOVASPY_CMR_LIB/log4j.jar:$NOVASPY_CMR_LIB/novaspy-commons.jar:$NOVASPY_CMR_LIB/postgresql.jar:$NOVASPY_CMR_LIB/servlet-api.jar:$NOVASPY_CMR_LIB/slf4j-api.jar:$NOVASPY_CMR_LIB/slf4j-log4j12.jar:$NOVASPY_CMR_LIB/spring.jar:$NOVASPY_CMR_LIB/spring-test.jar:$NOVASPY_CMR_LIB/spring-web.jar:$NOVASPY_CMR_LIB/spring-webmvc.jar:$NOVASPY_CMR_LIB/c3p0.jar:$NOVASPY_CMR_LIB/h2.jar:$NOVASPY_CMR_LIB/antlr.jar info.novatec.novaspy.cmr.CMR h1. |
Access
...
the
...
h2
...
inspectIT
...
database
...
inspectIT
...
CMR
...
currently
...
comes
...
with
...
the
...
fast,
...
file-based
...
h2
...
database.
...
Sometimes
...
it
...
may
...
be
...
necessary
...
to
...
check
...
the
...
data
...
within
...
the
...
database.
...
To
...
do
...
that,
...
one
...
can
...
use
...
the
...
built-in
...
webbased
...
query
...
view
...
of
...
h2:
...
- First
...
- the
...
- h2
...
- Browser
...
- must
...
- be
...
- started.
...
- Go
...
- to
...
- the
...
- CMR
...
- installation
...
- folder
...
- and
...
- start
...
- it
...
- by
...
- executing:
...
- java -cp lib/prod/h2.jar org.h2.tools.Server -webAllowOthers -web (Using
...
- -webAllowOthers
...
- allows
...
- you
...
- to
...
- connect
...
- to
...
- this
...
- server
...
- from
...
- other
...
- computers,
...
- so
...
- you
...
- do
...
- not
...
- have
...
- to
...
- be
...
- on
...
- the
...
- actual
...
- computer)
...
- The server should start up:sieglst@ipazhkorr06-2:~/inspectIT/CMR>
...
- java
...
- -cp
...
- lib/h2.jar
...
- org.h2.tools.Server
...
- -webAllowOthers
...
- -web
...
Web
...
- server
...
- running
...
- on
...
...
- (others
...
- can
...
- connect)
...
- Access
...
- the
...
- server
...
- by
...
- pointing
...
- your
...
- browser
...
- to
...
- this
...
- URL
...
- (in
...
- my
...
- current
...
- environment
...
- I
...
- need
...
- to
...
- use
...
- the
...
- logical
...
- name
...
- instead
...
- of
...
- the
...
- IP)
...
- The
...
- database
...
- can
...
- be
...
- accessed
...
- by
...
- using
...
- this
...
- connection
...
- string:
...
- jdbc:h2:
...
- [path_to_CMR_directory
...
- ]/db/inspectit
...
- .
...
- User
...
- and
...
- password
...
- is
...
- inspectit
- Note that the database only provides one connection. Thus if the CMR is running you cannot connect this way.