[Hibernate-commits] Hibernate Code SVN: r10157 - trunk/HibernateExt/tools/src/java/org/hibernate/tool/ant

[<hib...@li...>]

Author: max...@jb...
Date: 2006-07-26 08:18:38 -0400 (Wed, 26 Jul 2006)
New Revision: 10157

Modified:
   trunk/HibernateExt/tools/src/java/org/hibernate/tool/ant/HibernateToolTask.java
Log:
HBX-710 bomb detection

Modified: trunk/HibernateExt/tools/src/java/org/hibernate/tool/ant/HibernateToolTask.java
===================================================================
--- trunk/HibernateExt/tools/src/java/org/hibernate/tool/ant/HibernateToolTask.java	2006-07-26 11:38:41 UTC (rev 10156)
+++ trunk/HibernateExt/tools/src/java/org/hibernate/tool/ant/HibernateToolTask.java	2006-07-26 12:18:38 UTC (rev 10157)
@@ -17,6 +17,8 @@
 import org.apache.tools.ant.types.Environment;
 import org.apache.tools.ant.types.Path;
 import org.apache.tools.ant.types.PropertySet;
+import org.hibernate.MappingException;
+import org.hibernate.MappingNotFoundException;
 import org.hibernate.cfg.Configuration;
 import org.hibernate.util.StringHelper;
 
@@ -173,6 +175,7 @@
 	private void reportException(Throwable re, int count, ExporterTask generatorTask) {
 		log("An exception occurred while running exporter #" + count + ":" + generatorTask.getName(), Project.MSG_ERR);
 		log("To get the full stack trace run ant with -verbose", Project.MSG_ERR);
+		
 		log(re.toString(), Project.MSG_ERR);
 		String ex = new String();
 		Throwable cause = re.getCause();
@@ -187,6 +190,11 @@
 		if(StringHelper.isNotEmpty(ex)) {
 			log(ex, Project.MSG_ERR);
 		}
+
+		String newbieMessage = getProbableSolutionOrCause(re);
+		if(newbieMessage!=null) {
+			log(newbieMessage);
+		} 		
 		
 		if(re instanceof BuildException) {
 			throw (BuildException)re;
@@ -195,6 +203,50 @@
 		}
 	}
 
+	private String getProbableSolutionOrCause(Throwable re) {
+		if(re==null) return null;
+		
+		if(re instanceof MappingNotFoundException) {
+			MappingNotFoundException mnf = (MappingNotFoundException)re;
+			if("resource".equals(mnf.getType())) {
+				return "A " + mnf.getType() + " located at " + mnf.getPath() + " was not found.\n" +
+						"Check the following:\n" +
+						"\n" +
+						"1) Is the spelling/casing correct ?\n" +
+						"2)	Is " + mnf.getPath() + " available via the classpath ?\n" +
+						"3) Does it actually exist ?\n";						
+			} else {
+				return "A " + mnf.getType() + " located at " + mnf.getPath() + " was not found.\n" +
+				"Check the following:\n" +
+				"\n" +
+				"1) Is the spelling/casing correct ?\n" +
+				"2)	Do you permission to access " + mnf.getPath() + " ?\n" +
+				"3) Does it actually exist ?\n";	
+			}
+		}
+
+		if(re instanceof ClassNotFoundException || re instanceof NoClassDefFoundError) {
+			
+			return "A class were not found in the classpath of the Ant task.\n" +
+					"Ensure that the classpath contains the classes needed for Hibernate and your code are in the classpath.\n"; 			
+			
+		}
+		
+		if(re instanceof UnsupportedClassVersionError) {
+			return "You are most likely running the ant task with a JRE that is older than the JRE required to use the classes.\n" +
+					"e.g. running with JRE 1.3 or 1.4 when using JDK 1.5 annotations is not possible.\n" +
+					"Ensure that you are using a correct JRE.";
+		}
+		
+		
+		
+		if(re.getCause()!=re) {
+			return getProbableSolutionOrCause( re.getCause() );					
+		}
+		
+		return null;
+	}
+
 	private void validateParameters() {
 		if(generators.isEmpty()) {
 			throw new BuildException("No exporters specified in <hibernatetool>. There has to be at least one specified. An exporter is e.g. <hbm2java> or <hbmtemplate>. See documentation for details.", getLocation());