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feat: Auto-detect $CLAS12DIR coatjava location #795

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Merged
c-dilks merged 3 commits into from
Sep 9, 2025
Merged

feat: Auto-detect $CLAS12DIR coatjava location #795

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92288c2
hack to get absolute path
baltzell Aug 15, 2025
f7bc32d
cleanup
baltzell Aug 18, 2025
11d1e70
bugfix
baltzell Sep 5, 2025
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74 changes: 56 additions & 18 deletions common-tools/clas-utils/src/main/java/org/jlab/utils/system/ClasUtilsFile.java
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
Expand All @@ -20,13 +21,48 @@ public class ClasUtilsFile {
private static String moduleString = "[ClasUtilsFile] --> ";

public static String getName(){ return moduleString; }

/**
* prints a log message with the module name included.
* @param log
*/
public static void printLog(String log){
System.out.println(ClasUtilsFile.getName() + " " + log);
}

/**
* @param clazz
* @return absolute path of the jar file containing clazz
*/
public static String getJarPath(Class clazz) {
try {
return (new File(clazz.getProtectionDomain().getCodeSource().getLocation().toURI())).getAbsolutePath();
} catch (Exception e) {
System.getLogger(ClasUtilsFile.class.getName()).log(System.Logger.Level.ERROR, (String) null, e);
return null;
}
}

/**
* @return absolute path to COATJAVA installation runtime directory
*/
public static String getCoatjavaRuntimeDir() {
String ret = getJarPath(ClasUtilsFile.class);
if (ret != null) {
String[] d = ret.split("/");
if (System.console() == null)
// When run from an IDE, the jar is in the coatjava source tree,
// so assume the "coatjava" installation directory at the top:
ret = "/" + String.join("/", Arrays.copyOfRange(d,0,d.length-4)) + "/coatjava";
else
// When running the JVM directly, the jar is already inside a
// coatjava installation, so just get to the top of it:
ret = "/" + String.join("/", Arrays.copyOfRange(d,0,d.length-3));

}
return ret;
}

/**
* returns package resource directory with given enviromental variable
* and relative path.
Expand All @@ -36,33 +72,37 @@ public static void printLog(String log){
*/
public static String getResourceDir(String env, String rpath){

String envString = System.getenv(env);
if(envString==null){
String value = System.getenv(env);

if(value==null){
ClasUtilsFile.printLog("Environment variable ["+env+"] is not defined");
envString = System.getProperty(env);
value = System.getProperty(env);
}

if(envString == null){
if(value == null){
ClasUtilsFile.printLog("System property ["+env+"] is not defined");
return null;
if (env.equals("COATJAVA") || env.equals("CLAS12DIR")) {
value = getCoatjavaRuntimeDir();
}
}

if (value == null) return null;

StringBuilder str = new StringBuilder();
int index = envString.length()-1;
str.append(envString);
//Char fileSeparator =
if(envString.charAt(index)!='/' && rpath.startsWith("/")==false) str.append('/');
str.append(value);
if (!value.endsWith("/") && !rpath.startsWith("/")) str.append('/');
str.append(rpath);
return str.toString();
}

/**
* returns list of files in the directory. absolute path is given.
* This function will not exclude ".*" and "*~" files.
* @param directory
* @return
*/
public static List<String> getFileList(String directory){
List<String> fileList = new ArrayList<String>();
List<String> fileList = new ArrayList<>();
File[] files = new File(directory).listFiles();
System.out.println("FILE LIST LENGTH = " + files.length);
for (File file : files) {
Expand All @@ -88,7 +128,7 @@ public static List<String> getFileList(String env, String rpath){
String directory = ClasUtilsFile.getResourceDir(env, rpath);
if(directory==null){
ClasUtilsFile.printLog("(error) directory does not exist : " + directory);
return new ArrayList<String>();
return new ArrayList<>();
}
return ClasUtilsFile.getFileList(directory);
}
Expand All @@ -101,10 +141,10 @@ public static List<String> getFileList(String env, String rpath){
*/
public static List<String> getFileList(String env, String rpath, String ext){
String directory = ClasUtilsFile.getResourceDir(env, rpath);
if(directory!=null) return new ArrayList<String>();
if(directory!=null) return new ArrayList<>();

List<String> files = ClasUtilsFile.getFileList(directory);
List<String> selected = new ArrayList<String>();
List<String> selected = new ArrayList<>();
for(String item : files){
if(item.endsWith(ext)==true) selected.add(item);
}
Expand Down Expand Up @@ -135,7 +175,7 @@ public static void writeFile(String filename, List<String> lines){
* @return
*/
public static List<String> readFile(String filename){
List<String> lines = new ArrayList<String>();
List<String> lines = new ArrayList<>();
String line = null;
try {
// FileReader reads text files in the default encoding.
Expand Down Expand Up @@ -177,7 +217,7 @@ public static String readFileString(String filename){
* @return
*/
public static List<String> getFileNamesRelative(List<String> files){
List<String> newList = new ArrayList<String>();
List<String> newList = new ArrayList<>();
for(String file : files){
int index = file.lastIndexOf('/');
if(index>=0&&index<file.length()){
Expand Down Expand Up @@ -209,15 +249,13 @@ public static String createFileName(String filename, String addition, boolean pr

StringBuilder str = new StringBuilder();
int index = inputFile.lastIndexOf(".");
//int index = filename.lastIndexOf(".");
str.append(inputFile.substring(0, index));
str.append(addition);
str.append(inputFile.substring(index, inputFile.length()));
return str.toString();
}

public static void main(String[] args){
String output_file = ClasUtilsFile.createFileName("/Users/gavalian/Work/Software/Release-9.0/COATJAVA/coatjava/../datasets/gemc/eklambda/gemc_eklambda_A0001_gen.evio", "_header", true);
System.out.println(output_file);
System.out.println(getCoatjavaRuntimeDir());
}
}