Added XHTML validation support.

[jsvc.git] / src / dolda / jsvc / next / DomUtil.java

diff --git a/src/dolda/jsvc/next/DomUtil.java b/src/dolda/jsvc/next/DomUtil.java
index bedb992..4275689 100644 (file)
--- a/src/dolda/jsvc/next/DomUtil.java
+++ b/src/dolda/jsvc/next/DomUtil.java
@@ -2,9 +2,31 @@ package dolda.jsvc.next;
 
 import org.w3c.dom.*;
 import org.w3c.dom.bootstrap.*;
+import org.w3c.dom.ls.*;
+import javax.xml.validation.*;
+import java.io.*;
 
 public class DomUtil {
     private static final DOMImplementation domimp;
+    private static final SchemaFactory xsdfac;
+    
+    static {
+       xsdfac = SchemaFactory.newInstance(javax.xml.XMLConstants.W3C_XML_SCHEMA_NS_URI);
+       xsdfac.setResourceResolver(new LSResourceResolver() {
+               public LSInput resolveResource(String type, String ns, String pubid, String sysid, String base) {
+                   if(sysid.indexOf('/') >= 0) {
+                       InputStream in = getcatalog(sysid.substring(sysid.lastIndexOf('/') + 1));
+                       if(in != null) {
+                           LSInput ret = new LSInputAdapter(pubid, sysid, base);
+                           ret.setByteStream(in);
+                           ret.setEncoding("us-ascii");
+                           return(ret);
+                       }
+                   }
+                   throw(new RuntimeException(String.format("Will not load external resources (for %s); please fix catalog.", sysid)));
+               }
+           });
+    }
     
     static {
        DOMImplementationRegistry reg;
@@ -51,4 +73,52 @@ public class DomUtil {
        p.appendChild(t);
        return(t);
     }
+    
+    public static class LSInputAdapter implements LSInput {
+       private String pubid, sysid, baseuri, encoding = null, data = null;
+       private boolean cert = false;
+       private InputStream bs = null;
+       private Reader cs = null;
+       
+       public LSInputAdapter(String pubid, String sysid, String baseuri) {
+           this.pubid = pubid;
+           this.sysid = sysid;
+           this.baseuri = baseuri;
+       }
+       
+       public String getBaseURI() {return(baseuri);}
+       public String getPublicId() {return(pubid);}
+       public String getSystemId() {return(sysid);}
+       public void setBaseURI(String baseuri) {this.baseuri = baseuri;}
+       public void setPublicId(String pubid) {this.pubid = pubid;}
+       public void setSystemId(String sysid) {this.sysid = sysid;}
+
+       public InputStream getByteStream() {return(bs);}
+       public boolean getCertifiedText() {return(cert);}
+       public Reader getCharacterStream() {return(cs);}
+       public String getEncoding() {return(encoding);}
+       public String getStringData() {return(data);}
+       public void setByteStream(InputStream bs) {this.bs = bs;}
+       public void setCertifiedText(boolean cert) {this.cert = cert;}
+       public void setCharacterStream(Reader cs) {this.cs = cs;}
+       public void setEncoding(String encoding) {this.encoding = encoding;}
+       public void setStringData(String data) {this.data = data;}
+    }
+    
+    private static InputStream getcatalog(String name) {
+       if(name.indexOf('/') >= 0)
+           throw(new RuntimeException("Illegal catalog resource name `" + name + "'"));
+       return(DomUtil.class.getResourceAsStream("catalog/" + name));
+    }
+
+    public static Schema loadxsd(String name) {
+       InputStream in = getcatalog(name);
+       if(in == null)
+           throw(new RuntimeException("Could not find schema `" + name + "'"));
+       try {
+           return(xsdfac.newSchema(new javax.xml.transform.stream.StreamSource(in)));
+       } catch(org.xml.sax.SAXException e) {
+           throw(new RuntimeException(e));
+       }
+    }
 }