// This method is called whenever an external entity is accessed
// for the first time.
public InputSource resolveEntity(String publicId, String systemId) {
// Map the external entity to a local file
if (URL_PROPERTY_LIST.equals(systemId)) {
return new InputSource(ClassLoader.getSystemResourceAsStream(FILENAME_PROPERTY_LIST));
}
// Returning null causes the caller to try accessing the systemid
return null;
}
// return the resource as a stream
private InputStream mapResource(String publicId) {
if (publicId == null || id2resource == null) return null;
String resourceName = (String) id2resource.get(publicId);
ClassLoader loader = null;
if (resourceName == null) return null;
if (id2loader != null) loader = (ClassLoader) id2loader.get(publicId);
if (loader == null) return ClassLoader.getSystemResourceAsStream(resourceName);
return loader.getResourceAsStream(resourceName);
}
private boolean testExecutionMode() {
executionMode = false;
JarFile file = null;
try {
file = new JarFile(getTangaraPath());
ZipEntry entry = file.getEntry(EXECUTION_PROPERTIES_FILENAME);
if (entry != null) {
executionMode = true;
System.out.println("execution mode detected");
Properties executionProperties = new Properties();
InputStream ips = ClassLoader.getSystemResourceAsStream(EXECUTION_PROPERTIES_FILENAME);
executionProperties.load(ips);
if (executionProperties.containsKey("main-program")) {
String mainTangaraFile = executionProperties.getProperty("main-program");
System.out.println("main tangara file: " + mainTangaraFile);
properties.setProperty("main-program", mainTangaraFile);
} else {
System.err.println("error : main program not specified");
}
if (executionProperties.containsKey("language")) {
String language = executionProperties.getProperty("language");
properties.setProperty("language", language);
System.out.println("language: " + language);
} else {
System.err.println("error : language not specified");
}
if (executionProperties.containsKey("resources")) {
String resources = executionProperties.getProperty("resources");
properties.setProperty("program.resources", resources);
System.out.println("resources: " + resources);
} else {
System.err.println("error : resources not specified");
}
}
} catch (IOException e) {
e.printStackTrace();
} finally {
if (file != null) {
try {
file.close();
} catch (IOException e) {
System.err.println("error while closing tangara JAR file");
}
}
}
return executionMode;
}
public InputStream getResourceAsStream(String name) {
return ClassLoader.getSystemResourceAsStream(name);
}