GeomConverter/src/org/lcsim/util/xml
diff -N ClasspathEntityResolver.java
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ ClasspathEntityResolver.java 14 Dec 2007 21:59:00 -0000 1.1
@@ -0,0 +1,48 @@
+package org.lcsim.util.xml;
+
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.xml.sax.EntityResolver;
+import org.xml.sax.InputSource;
+import org.xml.sax.SAXException;
+
+/**
+ * Finds an XML schema in a jar file.
+ *
+ * @author Jeremy McCormick
+ * @version $Id: ClasspathEntityResolver.java,v 1.1 2007/12/14 21:59:00 jeremy Exp $
+ */
+// FIXME: Duplicates functionality of freehep's ClasspathEntityResolver.
+public class ClasspathEntityResolver
+implements EntityResolver
+{
+ String basePath;
+
+ public ClasspathEntityResolver(String basePath)
+ {
+ this.basePath = basePath;
+ }
+
+ /**
+ * Resolves the <tt>systemId</tt> by stripping out the base URL and then
+ * looking for the remaining path under a base package name.
+ *
+ * ex. - http://www.lcsim.org/schemas/compact/1.0/compact.xsd -> /org/lcsim/schemas/compact/1.0/compact.xsd
+ *
+ */
+ public InputSource resolveEntity(String publicId, String systemId) throws SAXException, IOException
+ {
+ // Strip out the base URL.
+ String path = systemId.substring(systemId.indexOf("/", systemId.indexOf("//") + 1));
+
+ // Resolve the path component.
+ InputStream in = this.getClass().getResourceAsStream(basePath + "/" + path);
+
+ // Make an InputSource from the stream.
+ InputSource src = new InputSource(in);
+ src.setSystemId(systemId);
+
+ return src;
+ }
+}
