org.codehaus.groovy.control.XStreamUtils Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.codehaus.groovy.control;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.StaxDriver;
import org.codehaus.groovy.runtime.DefaultGroovyMethods;
import java.io.File;
import java.io.FileWriter;
import java.net.URI;
public abstract class XStreamUtils {
public static void serialize(final String name, final Object ast) {
if (name == null || name.length() == 0) return;
XStream xstream = new XStream(new StaxDriver());
FileWriter astFileWriter = null;
try {
File astFile = astFile(name);
if (astFile == null) {
System.out.println("File-name for writing " + name + " AST could not be determined!");
return;
}
astFileWriter = new FileWriter(astFile, false);
xstream.toXML(ast, astFileWriter);
System.out.println("Written AST to " + name + ".xml");
} catch (Exception e) {
System.out.println("Couldn't write to " + name + ".xml");
e.printStackTrace();
} finally {
DefaultGroovyMethods.closeQuietly(astFileWriter);
}
}
/**
* Takes the incoming file-name and checks whether this is a URI using the file: protocol or a non-URI and treats
* it accordingly.
*
* @return a file-name {@link java.io.File} representation or null if the file-name was in an invalid URI format
*/
private static File astFile(final String uriOrFileName) {
try {
final String astFileName = uriOrFileName + ".xml";
return uriOrFileName.startsWith("file:") ? new File(URI.create(astFileName)) : new File(astFileName);
} catch (IllegalArgumentException e) {
return null;
}
}
}