org.jboss.byteman.agent.submit

Class Submit

java.lang.Object

org.jboss.byteman.agent.submit.Submit

public class Submit
extends Object

A Java API that can be used to submit requests to a remote Byteman agent. This also includes a main routine for use as a command-line utility. This object provides a means by which you communicate with the Byteman agent at runtime allowing loading, reloading, unloading of rules and listing of the current rule set and any successful or failed attempts to inject, parse and typecheck the rules. Note that this class is completely standalone and has no dependencies on any other Byteman class. It can be shipped alone in a client jar to be used as a very small app.

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_ADDRESS
static int	DEFAULT_PORT

Constructor Summary

Constructors

Constructor and Description
Submit() Create a client that will connect to a Byteman agent on the default host and port and writing output to System.out.
Submit(String address, int port) Create a client that will connect to a Byteman agent on the given host and port and writing output to System.out.
Submit(String address, int port, PrintStream out) Create a client that will connect to a Byteman agent on the given host and port and writing output to System.out.

Method Summary

Methods

Modifier and Type	Method and Description
String	addJarsToBootClassloader(List<String> jarPaths) This adds the given list of files to the Byteman agent's boot classloader.
String	addJarsToSystemClassloader(List<String> jarPaths) This adds the given list of files to the Byteman agent's system classloader.
String	addRules(Map<String,String> rules) Deprecated.
String	addRulesFromFiles(List<String> filePaths) Deploys rules into Byteman, where the rule definitions are found in the local files found at the given paths.
String	addScripts(List<ScriptText> scripts) Deploys rule scripts into Byteman
String	deleteAllRules() Tells the Byteman agent to delete all rules.
String	deleteRules(Map<String,String> rules) Deprecated.
String	deleteRulesFromFiles(List<String> filePaths) Deletes rules from Byteman, where the rule definitions are found in the local files found at the given paths.
String	deleteScripts(List<ScriptText> scripts) Deletes rules from Byteman.
String	determineRuleName(String ruleDefinition) Given the content of an individual rule definition, this will return the name of that rule.
String	getAddress()
String	getAgentVersion() Returns the version of the remote Byteman agent.
Map<String,String>	getAllRules() Deprecated.
List<ScriptText>	getAllScripts() Gets all deployed rules from the agent just as listAllRules(), but will return the rules organized by script (i.e.
String	getClientVersion() Returns the version of this Byteman submit client.
List<String>	getLoadedBootClassloaderJars() Returns a list of jars that were added to the Byteman agent's boot classloader.
List<String>	getLoadedSystemClassloaderJars() Returns a list of jars that were added to the Byteman agent's system classloader.
int	getPort()
String	listAllRules() Tells the Byteman agent to list all deployed rules.
Properties	listSystemProperties() Returns the system properties set in the Byteman agent VM.
static void	main(String[] args) A main routine which submits requests to the Byteman agent utilizing the Java API.
String	setSystemProperties(Properties propsToSet) Sets system properties in the Byteman agent VM.
List<String>	splitAllRulesFromScript(String scriptContent) Given the content of a script (which will be one or more rule definitions), this will return each rule definition as an individual string within the returned list.
String	submitRequest(String request) Submits the generic request string to the Byteman agent for processing.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ADDRESS

public static final String DEFAULT_ADDRESS

See Also:

Constant Field Values

DEFAULT_PORT

public static final int DEFAULT_PORT

See Also:

Constant Field Values

Constructor Detail

Submit

public Submit()

Create a client that will connect to a Byteman agent on the default host and port and writing output to System.out.

Submit

public Submit(String address,
      int port)

Create a client that will connect to a Byteman agent on the given host and port and writing output to System.out.

Parameters:

address - the hostname or IP address of the machine where Byteman agent is located. If null, the default host is used.

port - the port that the Byteman agent is listening to. If 0 or less, the default port is used.

Submit

public Submit(String address,
      int port,
      PrintStream out)

Create a client that will connect to a Byteman agent on the given host and port and writing output to System.out.

Parameters:

address - the hostname or IP address of the machine where Byteman agent is located. If null, the default host is used.

port - the port that the Byteman agent is listening to. If 0 or less, the default port is used.

Method Detail

getAddress

public String getAddress()

Returns:

identifies the host where this client expects a Byteman agent to be running.

getPort

public int getPort()

Returns:

the port that this client expects a Byteman agent to be listening to on the given host.

getAgentVersion

public String getAgentVersion()
                       throws Exception

Returns the version of the remote Byteman agent.

Returns:

the version of the remote Byteman agent

Throws:

Exception - if the request failed

getClientVersion

public String getClientVersion()
                        throws Exception

Returns the version of this Byteman submit client.

Returns:

the version of the submit client, or null if unknown

Throws:

Exception - if the request failed

deleteAllRules

public String deleteAllRules()
                      throws Exception

Tells the Byteman agent to delete all rules. This will effectively revert the Byteman's VM to its original state; that is, no Byteman injected byte-code will be invoked.

Returns:

the results of the delete-all request to the Byteman agent

Throws:

Exception - if the request failed

listAllRules

public String listAllRules()
                    throws Exception

Tells the Byteman agent to list all deployed rules.

Returns:

all the rules deployed in the Byteman agent

Throws:

Exception - if the request failed

getAllScripts

public List<ScriptText> getAllScripts()
                               throws Exception

Gets all deployed rules from the agent just as listAllRules(), but will return the rules organized by script (i.e. rule file). Each "script", or rule file, has a set of rules associated with it.

Returns:

all the scripts deployed in the Byteman agent the keys are the script names (typically this is the filenames where the rule definitions were found); the values are the rule definitions in the scripts

Throws:

Exception - if the request failed

getAllRules

@Deprecated
public Map<String,String> getAllRules()
                               throws Exception

Deprecated.

old version which returns a map rather than a list of scripts

Returns:

Throws:

Exception

splitAllRulesFromScript

public List<String> splitAllRulesFromScript(String scriptContent)
                                     throws Exception

Given the content of a script (which will be one or more rule definitions), this will return each rule definition as an individual string within the returned list. The returned list will be ordered - that is, the first rule in the list is the first rule encountered in the script. One usage of this method is to pass in map values from the results of getAllScripts() in case you need the scripts' individual rules.

Parameters:

scriptContent - the actual content of a script (i.e. the rule definitions)

Returns:

all the rule definitions found in the given script

Throws:

Exception

determineRuleName

public String determineRuleName(String ruleDefinition)
                         throws Exception

Given the content of an individual rule definition, this will return the name of that rule.

Parameters:

ruleDefinition - the actual content of an individual rule

Returns:

the name of the given rule, or null if it could not be determined

Throws:

Exception

addJarsToBootClassloader

public String addJarsToBootClassloader(List<String> jarPaths)
                                throws Exception

This adds the given list of files to the Byteman agent's boot classloader. Note that if the Byteman agent is running on a remote machine, the paths must resolve on that remote host (i.e. the file must exist on the remote machine at the paths given to this method).

Parameters:

jarPaths - the paths to the library .jar files that will be loaded

Returns:

the result of the load as reported by Byteman

Throws:

Exception - if the request failed

addJarsToSystemClassloader

public String addJarsToSystemClassloader(List<String> jarPaths)
                                  throws Exception

This adds the given list of files to the Byteman agent's system classloader. Note that if the Byteman agent is running on a remote machine, the paths must resolve on that remote host (i.e. the file must exist on the remote machine at the paths given to this method).

Parameters:

jarPaths - the paths to the library .jar files that will be loaded

Returns:

the result of the load as reported by Byteman

Throws:

Exception - if the request failed

getLoadedBootClassloaderJars

public List<String> getLoadedBootClassloaderJars()
                                          throws Exception

Returns a list of jars that were added to the Byteman agent's boot classloader.

Returns:

list of jars that were added to the boot classloader

Throws:

Exception - if the request failed

getLoadedSystemClassloaderJars

public List<String> getLoadedSystemClassloaderJars()
                                            throws Exception

Returns a list of jars that were added to the Byteman agent's system classloader.

Returns:

list of jars that were added to the system classloader

Throws:

Exception - if the request failed

addRulesFromFiles

public String addRulesFromFiles(List<String> filePaths)
                         throws Exception

Deploys rules into Byteman, where the rule definitions are found in the local files found at the given paths. The rule definitions found in the files are actually passed down directly to Byteman, not the file paths themselves. Therefore, these files must exist on the machine where this client is running (i.e. the files are not loaded directly by the Byteman agent).

Parameters:

filePaths - the local files containing the rule definitions to be deployed to Byteman

Returns:

the results of the deployment

Throws:

Exception - if the request failed

addScripts

public String addScripts(List<ScriptText> scripts)
                  throws Exception

Deploys rule scripts into Byteman

Parameters:

scripts - scripts to be deployed to Byteman

Returns:

the results of the deployment

Throws:

Exception - if the request failed

addRules

@Deprecated
public String addRules(Map<String,String> rules)
                throws Exception

Deprecated.

old version which uses a Map

Parameters:

rules -

Returns:

Throws:

Exception

deleteRulesFromFiles

public String deleteRulesFromFiles(List<String> filePaths)
                            throws Exception

Deletes rules from Byteman, where the rule definitions are found in the local files found at the given paths. After this method is done, the given rules will no longer be processed by Byteman. The rule definitions found in the files are actually passed down directly to Byteman, not the file paths themselves. Therefore, these files must exist on the machine where this client is running (i.e. the files are not read directly by the Byteman agent).

Parameters:

filePaths - the local files containing the rule definitions to be deleted from Byteman

Returns:

the results of the deletion

Throws:

Exception - if the request failed

deleteScripts

public String deleteScripts(List<ScriptText> scripts)
                     throws Exception

Deletes rules from Byteman.

Parameters:

scripts - rule scripts to be deleted from Byteman

Returns:

the results of the deletion

Throws:

Exception - if the request failed

deleteRules

@Deprecated
public String deleteRules(Map<String,String> rules)
                   throws Exception

Deprecated.

old version which uses a Map

Parameters:

rules -

Returns:

Throws:

Exception

setSystemProperties

public String setSystemProperties(Properties propsToSet)
                           throws Exception

Sets system properties in the Byteman agent VM. If Byteman was configured for strict mode, only Byteman related system properties will be allowed to be set.

Parameters:

propsToSet - system properties to set in the Byteman agent VM

Returns:

response from the Byteman agent

Throws:

Exception - if the request failed

listSystemProperties

public Properties listSystemProperties()
                                throws Exception

Returns the system properties set in the Byteman agent VM. If Byteman was configured for strict mode, only Byteman related system properties will be returned.

Returns:

system properties defined in the Byteman agent VM

Throws:

Exception - if the request failed

submitRequest

public String submitRequest(String request)
                     throws Exception

Submits the generic request string to the Byteman agent for processing.

Parameters:

request - the request to submit

Returns:

the response that the Byteman agent replied with

Throws:

Exception - if the request failed

main

public static void main(String[] args)

A main routine which submits requests to the Byteman agent utilizing the Java API.

Parameters:

args - see #usage(int) for a description of the allowed arguments