org.jclouds.scriptbuilder
Class ScriptBuilder

java.lang.Object
  org.jclouds.scriptbuilder.ScriptBuilder

All Implemented Interfaces:

AcceptsStatementVisitor, Statement

public class ScriptBuilder
extends Object
implements Statement, AcceptsStatementVisitor

Creates a shell script.

Constructor Summary

ScriptBuilder()

Method Summary

void	accept(StatementVisitor visitor)
ScriptBuilder	addEnvironmentVariableScope(String scopeName, Map<String,String> variables) Exports a variable inside the script
ScriptBuilder	addStatement(Statement statement)
static Statement	call(String fn, String... args)
static Statement	findPid(String pid)
static Statement	forget(String instanceName, String script, String logDir)
Iterable<String>	functionDependencies(OsFamily family)
String	render(OsFamily osFamily) builds the shell script, by adding the following shell declaration line variable exports case/switch
static Map<String,String>	resolveFunctionDependenciesForStatements(Map<String,String> knownFunctions, Iterable<Statement> statements, OsFamily osFamily)
ScriptBuilder	unsetEnvironmentVariable(String name) Unsets a variable to ensure it is set within the script.
static void	writeFunctions(Map<String,String> functionsToWrite, OsFamily osFamily, StringBuilder builder)

Methods inherited from class java.lang.Object

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

Constructor Detail

ScriptBuilder

public ScriptBuilder()

Method Detail

addStatement

public ScriptBuilder addStatement(Statement statement)

unsetEnvironmentVariable

public ScriptBuilder unsetEnvironmentVariable(String name)

Unsets a variable to ensure it is set within the script.

Parameters:

variable - name in UPPER_UNDERSCORE case format

addEnvironmentVariableScope

public ScriptBuilder addEnvironmentVariableScope(String scopeName,
                                                 Map<String,String> variables)

Exports a variable inside the script

Parameters:

scopeName -

variables - keys are the variables to export in UPPER_UNDERSCORE case format

forget

public static Statement forget(String instanceName,
                               String script,
                               String logDir)

findPid

public static Statement findPid(String pid)

call

public static Statement call(String fn,
                             String... args)

render

public String render(OsFamily osFamily)

builds the shell script, by adding the following

1. shell declaration line
2. variable exports
3. case/switch

Specified by:

render in interface Statement

Parameters:

osFamily - whether to write a cmd or bash script.

writeFunctions

public static void writeFunctions(Map<String,String> functionsToWrite,
                                  OsFamily osFamily,
                                  StringBuilder builder)

resolveFunctionDependenciesForStatements

public static Map<String,String> resolveFunctionDependenciesForStatements(Map<String,String> knownFunctions,
                                                                          Iterable<Statement> statements,
                                                                          OsFamily osFamily)

functionDependencies

public Iterable<String> functionDependencies(OsFamily family)

Specified by:

functionDependencies in interface Statement

accept

public void accept(StatementVisitor visitor)

Specified by:

accept in interface AcceptsStatementVisitor