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Open Source Chemistry Library
/*
* Copyright (c) 1997 - 2016
* Actelion Pharmaceuticals Ltd.
* Gewerbestrasse 16
* CH-4123 Allschwil, Switzerland
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of the the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
package com.actelion.research.util;
import java.io.File;
import java.nio.file.NotDirectoryException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
/**
* CommandLineParser
*
* Simple command line parser. Creates a key value table.
*
* Created by korffmo1 on 13.07.17.
*/
public class CommandLineParser {
public static final String SEP_TAG = ";";
public static final String HELP = "-h";
private final HashMap hmCommandValue;
public CommandLineParser() {
hmCommandValue=new HashMap<>();
}
public CommandLineParser(String args[]) {
hmCommandValue=new HashMap<>();
parse(args);
}
/**
*
* @param parameterLine i.e. width=234; color=233,0,0; resolution="super high"; blur=false
* @param separatorRegEx i.e. ;
*/
public CommandLineParser(String parameterLine, String separatorRegEx) {
hmCommandValue=new HashMap<>();
if(parameterLine!=null && !parameterLine.isEmpty()) {
String[] args = parameterLine.split(separatorRegEx);
for (String command : args) {
String[] a = command.split("=");
hmCommandValue.put(a[0].trim(), a[1].trim().replace("\"", ""));
}
}
}
public void add(String command, String value) {
if(hmCommandValue.containsKey(command)){
throw new RuntimeException("Contains already command " + command);
}
hmCommandValue.put(command,value);
}
public String get(String command) {
return hmCommandValue.get(command);
}
public int getOrDefault(String command, int defaultVal){
int v=defaultVal;
if(contains(command)){
v=getAsInt(command);
}
return v;
}
public double getOrDefault(String command, double defaultVal){
double v=defaultVal;
if(contains(command)){
v=getAsInt(command);
}
return v;
}
public String getOrDefault(String command, String defaultVal){
String s=defaultVal;
if(contains(command)){
s=get(command);
}
return s;
}
public File getFileOrDefault(String command, File defaultVal){
File f=defaultVal;
if(contains(command)){
f=getAsFile(command);
}
return f;
}
public List getAsList(String command) {
String s = hmCommandValue.get(command);
String [] a = s.split(SEP_TAG);
List l = new ArrayList<>();
for (String tok : a) {
l.add(tok.trim());
}
return l;
}
public File getAsFile(String command) {
return new File(get(command));
}
public File getAsDir(String command) throws NotDirectoryException {
File d = getAsFile(command);
if(!d.isDirectory()){
throw new NotDirectoryException("Not a dir " + d.getAbsolutePath());
}
return d;
}
public double getAsDouble(String command) {
return Double.parseDouble(get(command));
}
public int getAsInt(String command) {
return Integer.parseInt(get(command));
}
public long getAsLong(String command) {
return Long.parseLong(get(command));
}
/**
* Use contains(...) if only the flag is used.
* @param command
* @return
*/
public boolean getAsBoolean(String command) {
return Boolean.parseBoolean(get(command));
}
public boolean contains(String command) {
return hmCommandValue.containsKey(command);
}
public boolean help() {
return hmCommandValue.containsKey(HELP);
}
public boolean checkCommandWithValue(String command) {
if(!contains(command)){
throw new RuntimeException("Argument '" + command + "' missing.");
}
if(get(command)==null){
throw new RuntimeException("Value for '" + command + "' missing.");
}
return true;
}
public int parse(String [] args){
int index=0;
while (index li = new ArrayList(hmCommandValue.keySet());
Collections.sort(li);
for (String k : li) {
sb.append(k);
sb.append("\t");
sb.append(hmCommandValue.get(k));
sb.append("\n");
}
return sb.toString();
}
public static void main(String[] args) {
String c = "-f file -D -C command";
String [] argsCmd = c.split(" ");
CommandLineParser clp = new CommandLineParser();
clp.parse(argsCmd);
System.out.println(clp.toString());
c = "width=234; color=233,0,0; resolution=\"super high\"; blur=false";
clp = new CommandLineParser(c, ";");
System.out.println(clp.toString());
}
}