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57 package com.sun.org.apache.xerces.internal.jaxp.validation;
58
59 import com.sun.org.apache.xerces.internal.xni.parser.XMLErrorHandler;
60 import com.sun.org.apache.xerces.internal.xni.parser.XMLParseException;
61 import org.xml.sax.ErrorHandler JavaDoc;
62 import org.xml.sax.SAXException JavaDoc;
63
64 /**
65  * Receives errors through Xerces {@link XMLErrorHandler}
66  * and pass them down to SAX {@link ErrorHandler}.
67  *
68  * @author
69  * Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
70  */
71 public abstract class ErrorHandlerAdaptor implements XMLErrorHandler
72 {
73     /** set to true if there was any error. */
74     private boolean hadError = false;
75         
76     /**
77      * returns if there was an error since the last invocation of
78      * the resetError method.
79      */
80     public boolean hadError() { return hadError; }
81     /** resets the error flag. */
82     public void reset() { hadError = false; }
83     
84     /**
85      * Implemented by the derived class to return the actual
86      * {@link ErrorHandler} to which errors are sent.
87      *
88      * @return always return non-null valid object.
89      */
90     protected abstract ErrorHandler getErrorHandler();
91      
92     public void fatalError( String JavaDoc domain, String JavaDoc key, XMLParseException e ) {
93         try {
94             hadError = true;
95             getErrorHandler().fatalError( Util.toSAXParseException(e) );
96         } catch( SAXException JavaDoc se ) {
97             throw new WrappedSAXException(se);
98         }
99     }
100         
101     public void error( String JavaDoc domain, String JavaDoc key, XMLParseException e ) {
102         try {
103             hadError = true;
104             getErrorHandler().error( Util.toSAXParseException(e) );
105         } catch( SAXException JavaDoc se ) {
106             throw new WrappedSAXException(se);
107         }
108     }
109         
110     public void warning( String JavaDoc domain, String JavaDoc key, XMLParseException e ) {
111         try {
112             getErrorHandler().warning( Util.toSAXParseException(e) );
113         } catch( SAXException JavaDoc se ) {
114             throw new WrappedSAXException(se);
115         }
116     }
117         
118 }
119
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