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List:       xmlbeans-dev
Subject:    [jira] Created: (XMLBEANS-435) StscImporter.resolve() should do
From:       "Pavel Kryl (JIRA)" <xmlbeans-dev () xml ! apache ! org>
Date:       2010-04-13 14:32:55
Message-ID: 23891420.25721271169175757.JavaMail.jira () thor
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StscImporter.resolve() should do additional normalization
---------------------------------------------------------

                 Key: XMLBEANS-435
                 URL: https://issues.apache.org/jira/browse/XMLBEANS-435
             Project: XMLBeans
          Issue Type: Improvement
    Affects Versions:  Version 2.3,  Version 2.3.1, Version 2.4 , Version 2.4.1 , \
Version 2.5, Version 2.5.1  Environment: all environments
            Reporter: Pavel Kryl
            Priority: Minor


Motivation: I want to parse XML schemas in rutnime present on classpath, therefore I \
do the following:

            URL resourceUrl = getClass().getResource(resourceSchemaPath);
            InputStream resourceStream = \
                getClass().getResourceAsStream(resourceSchemaPath);
            XmlObject schemaDoc = XmlObject.Factory.parse(resourceStream, (new \
                XmlOptions()).setLoadLineNumbers().setLoadMessageDigest());
            // adjust location of the stream to enable XML beans read XML schemas \
                from classpath
            XmlDocumentProperties documentProperties = \
                schemaDoc.documentProperties();
            documentProperties.setSourceName(resourceUrl.toURI().toString());

now when the code gets to resolving imports in the resourceSchemaPath and the schema \
on classpath contains relative reference './artifactIndex.xsd' reading this resource \
fails because StscImporter does not normalize the URI before connection is opened on \
it. The resulting URI is something like:

jar:file:/opt/develop/m2/repository/com/mylib/4.0.0-SNAPSHOT/mylib-4.0.0-SNAPSHOT.jar!/sdm/xsd/./artifactIndex.xsd


Opening this URI fails, because java is not able to cope with the dot segment in the \
path. There is already a workaround for Sun bug # 4723726 (/.. segments), I suggest \
to add another workaround for single dot segments. Something like this (naive):

--- /usr/local/java/xmlbeans-2.3.0/src//org/apache/xmlbeans/impl/schema/StscImporter.java	2010-04-13 \
                16:27:42.064242055 +0200
+++ StscImporter.java	2010-04-13 16:14:13.000000000 +0200
@@ -291,6 +291,13 @@
                     }
                     slashDotDotIndex = r.indexOf("/..", exclPointSlashIndex);
                 }
+                int slashDotIndex = r.indexOf("/./", exclPointSlashIndex);
+                while (slashDotIndex > 0)
+                {
+                    String temp = r.substring(slashDotIndex + 2);
+                    r = r.substring(0, slashDotIndex).concat(temp);
+                    slashDotIndex = r.indexOf("/./", exclPointSlashIndex);
+                }
             }
             return URI.create(r);
         }

Also please note, that it is quite dangerous to look for "/.." and discard it, \
because this would give invalid results on names like '/..hiddendir' - but this is \
not the subject of this bug.


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