/*
* Copyright (C) 2008 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.gxp.compiler.parser;
import com.google.gxp.compiler.alerts.AlertSink;
import com.google.gxp.compiler.alerts.SourcePosition;
import java.io.IOException;
import java.io.InputStream;
/**
* Resolves entities in source files.
*
* <p>
* The interface is similar to
* {@link org.xml.sax.EntityResolver SAX entity resolver} but an entity includes
* the position of the entity in the source.
*/
public interface SourceEntityResolver {
/**
* @param entityPos position of the entity reference.
* @param publicId possibly null
* @param systemId possibly null
* @param alertSink receives info and warnings messages
*/
InputStream resolveEntity(
SourcePosition entityPos, String publicId, String systemId,
AlertSink alertSink)
throws IOException;
}
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