/*
* Copyright 2013 LMAX Ltd.
*
* 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 org.freud.analysed.javasource.jdom;
import org.antlr.runtime.ANTLRReaderStream;
import org.antlr.runtime.CommonTokenStream;
import org.antlr.runtime.RecognitionException;
import org.freud.analysed.javasource.parser.JavaLexer;
import org.freud.analysed.javasource.parser.JavaParser;
import org.freud.analysed.javasource.parser.JavaSourceTokenType;
import org.freud.core.parser.JdomTreeAdaptor;
import org.jdom.Document;
import java.io.IOException;
import java.io.Reader;
class JavaSourceJdomParser {
static final JavaSourceTokenType[] JAVA_SOURCE_TOKEN_TYPES = JavaSourceTokenType.values();
static final String JAVA_SOURCE_ROOT_ELEMENT_NAME = "JAVA_SOURCE";
private JavaSourceJdomParser() {
// static utility
}
static JavaSourceJdom parseJavaSource(final Reader reader, final String identifier) throws RecognitionException, IOException {
Document root = parseJavaSourceToDocument(reader);
return new JavaSourceJdom(root, identifier);
}
private static Document parseJavaSourceToDocument(final Reader javaSourceReader) throws RecognitionException, IOException {
JavaParser parser = new JavaParser(new CommonTokenStream(new JavaLexer(new ANTLRReaderStream(javaSourceReader))));
final JdomTreeAdaptor treeAdaptor = new JdomTreeAdaptor(JAVA_SOURCE_ROOT_ELEMENT_NAME, JAVA_SOURCE_TOKEN_TYPES);
parser.setTreeAdaptor(treeAdaptor);
parser.compilationUnit();
return treeAdaptor.getDocument();
}
}