org.jclouds.scriptbuilder.domain.ShellToken Maven / Gradle / Ivy
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creates scripts that can be used to manage services
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jclouds.scriptbuilder.domain;
import static com.google.common.base.Preconditions.checkNotNull;
import java.util.Map;
import com.google.common.base.CaseFormat;
import com.google.common.cache.CacheBuilder;
import com.google.common.cache.CacheLoader;
import com.google.common.cache.LoadingCache;
import com.google.common.collect.Maps;
/**
* Constants used in shell scripting.
*/
public enum ShellToken {
FS, RM, CD, TMP, UID, ROOT, CLOSE_FD, PS, MD, ESCVAR,
/**
* If variable values need to be quoted when they include spaces, this will contain quotation
* mark
*/
VQ,
/**
* Left hand side of the function declaration directly before the name of the function.
*/
FNCL,
/**
* Right hand side of the function declaration directly after the name of the function. opens the
* code block
*/
FNCR,
/**
* End the function. exits successfully and closes the code block.
*/
FNCE, BEGIN_SCRIPT, END_SCRIPT, BEGIN_FUNCTIONS, EXIT, END_FUNCTIONS, EXPORT, LF, SH, SOURCE, REM, RETURN, ARGS, VARL, VARR, LIBRARY_PATH_VARIABLE;
private static final LoadingCache> familyToTokenValueMap = CacheBuilder.newBuilder().build(
new CacheLoader>() {
@Override
public Map load(OsFamily from) {
Map map = Maps.newHashMap();
for (ShellToken token : ShellToken.values()) {
map.put(CaseFormat.UPPER_UNDERSCORE.to(CaseFormat.LOWER_CAMEL, token.toString()), token.to(from));
}
return map;
}
});
public static Map tokenValueMap(OsFamily family) {
return familyToTokenValueMap.getUnchecked(family);
}
@SuppressWarnings("fallthrough")
public String to(OsFamily family) {
checkNotNull(family, "family");
switch (this) {
case FS:
switch (family) {
case WINDOWS:
return "\\";
case UNIX:
return "/";
}
case FNCL:
switch (family) {
case WINDOWS:
return ":";
case UNIX:
return "function ";
}
case FNCR:
switch (family) {
case WINDOWS:
return "\r\n";
case UNIX:
return " {\n";
}
case FNCE:
switch (family) {
case WINDOWS:
return " exit /b 0\r\n";
case UNIX:
return " return $?\n}\n";
}
case ESCVAR:
switch (family) {
case WINDOWS:
return "%";
case UNIX:
return "\\";
}
case PS:
switch (family) {
case WINDOWS:
return ";";
case UNIX:
return ":";
}
case CLOSE_FD:
switch (family) {
case WINDOWS:
return ">NUL";
case UNIX:
return ">&-";
}
case RM:
switch (family) {
case WINDOWS:
return "del";
case UNIX:
return "rm";
}
case MD:
switch (family) {
case WINDOWS:
return "md";
case UNIX:
return "mkdir -p";
}
case VQ:
switch (family) {
case WINDOWS:
return "";
case UNIX:
return "\"";
}
case BEGIN_FUNCTIONS:
switch (family) {
case WINDOWS:
return "GOTO FUNCTION_END\r\n";
case UNIX:
return "";
}
case END_FUNCTIONS:
switch (family) {
case WINDOWS:
return ":FUNCTION_END\r\n";
case UNIX:
return "";
}
case BEGIN_SCRIPT:
switch (family) {
case WINDOWS:
return "@echo off\r\n";
case UNIX:
return "#!/bin/bash\nset +u\nshopt -s xpg_echo\nshopt -s expand_aliases\n";
}
case END_SCRIPT:
switch (family) {
case WINDOWS:
return "exit /b 0\r\n";
case UNIX:
return "exit $?\n";
}
case EXPORT:
switch (family) {
case WINDOWS:
return "set";
case UNIX:
return "export";
}
case RETURN:
switch (family) {
case WINDOWS:
return "exit /b";
case UNIX:
return "return";
}
case EXIT:
switch (family) {
case WINDOWS:
return "exit /b";
case UNIX:
return "exit";
}
case ROOT:
switch (family) {
case WINDOWS:
return "c:\\";
case UNIX:
return "/";
}
case TMP:
switch (family) {
case WINDOWS:
return "%TEMP%";
case UNIX:
return "/tmp";
}
case UID:
switch (family) {
case WINDOWS:
return "%USERNAME%";
case UNIX:
return "$USER";
}
case LF:
switch (family) {
case WINDOWS:
return "\r\n";
case UNIX:
return "\n";
}
case SH:
switch (family) {
case WINDOWS:
return "cmd";
case UNIX:
return "sh";
}
case LIBRARY_PATH_VARIABLE:
switch (family) {
case WINDOWS:
return "PATH";
case UNIX:
return "LD_LIBRARY_PATH";
}
case SOURCE:
switch (family) {
case WINDOWS:
return "@call";
case UNIX:
return ".";
}
case CD:
switch (family) {
case WINDOWS:
return "cd /d";
case UNIX:
return "cd";
}
case REM:
switch (family) {
case WINDOWS:
return "@rem";
case UNIX:
return "#";
}
case ARGS:
switch (family) {
case WINDOWS:
return "%*";
case UNIX:
return "$@";
}
case VARL:
switch (family) {
case WINDOWS:
return "%";
case UNIX:
return "$";
}
case VARR:
switch (family) {
case WINDOWS:
return "%";
case UNIX:
return "";
}
default:
throw new UnsupportedOperationException("token " + this + " not configured");
}
}
}
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