eu.lindenbaum.maven.util
Class ErlUtils

java.lang.Object
  eu.lindenbaum.maven.util.ErlUtils

public final class ErlUtils
extends Object

Containing utilities related to erlang code execution.

Author:

Tobias Schlager

Constructor Summary

ErlUtils()

Method Summary

static String	eval(org.apache.maven.plugin.logging.Log log, String expression) Evaluate an erlang expression and return the result.
static String	eval(org.apache.maven.plugin.logging.Log log, String expression, List<File> libPaths) Evaluate an erlang expression and return the result.
static String	eval(org.apache.maven.plugin.logging.Log log, String expression, List<File> libPaths, File workingDir) Evaluate an erlang expression and return the result.
static String	exec(List<String> commands, org.apache.maven.plugin.logging.Log log, File workingDir, Observer observer) Executes the given command array in the given working directory.

Methods inherited from class java.lang.Object

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

Constructor Detail

ErlUtils

public ErlUtils()

Method Detail

eval

public static String eval(org.apache.maven.plugin.logging.Log log,
                          String expression)
                   throws org.apache.maven.plugin.MojoExecutionException,
                          org.apache.maven.plugin.MojoFailureException

Evaluate an erlang expression and return the result.

Parameters:

log - logger.

expression - the expression to evaluate.

Returns:

the output of the erl interpreter.

Throws:

org.apache.maven.plugin.MojoExecutionException

org.apache.maven.plugin.MojoFailureException

eval

public static String eval(org.apache.maven.plugin.logging.Log log,
                          String expression,
                          List<File> libPaths)
                   throws org.apache.maven.plugin.MojoExecutionException,
                          org.apache.maven.plugin.MojoFailureException

Evaluate an erlang expression and return the result.

Parameters:

log - logger

expression - the expression to evaluate.

libPaths - list of paths to add to the path, maybe null

Returns:

the output of the erl interpreter.

Throws:

org.apache.maven.plugin.MojoExecutionException

org.apache.maven.plugin.MojoFailureException

eval

public static String eval(org.apache.maven.plugin.logging.Log log,
                          String expression,
                          List<File> libPaths,
                          File workingDir)
                   throws org.apache.maven.plugin.MojoExecutionException,
                          org.apache.maven.plugin.MojoFailureException

Evaluate an erlang expression and return the result.

Parameters:

log - logger

expression - the expression to evaluate.

libPaths - list of paths to add to the path, maybe null

workingDir - the working directory for the spawned process, maybe null

Returns:

the output of the erl interpreter.

Throws:

org.apache.maven.plugin.MojoExecutionException

org.apache.maven.plugin.MojoFailureException

exec

public static String exec(List<String> commands,
                          org.apache.maven.plugin.logging.Log log,
                          File workingDir,
                          Observer observer)
                   throws org.apache.maven.plugin.MojoExecutionException,
                          org.apache.maven.plugin.MojoFailureException

Executes the given command array in the given working directory. After process completion the given Observer is notfied to process the result.

Parameters:

commands - to execute

log - used to log errors

workingDir - the working directory for the spawned process, maybe null

observer - to be notified on process completion

Throws:

org.apache.maven.plugin.MojoExecutionException

org.apache.maven.plugin.MojoFailureException