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/**
* Copyright (c) 2008, http://www.snakeyaml.org
*
* 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.yaml.snakeyaml;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import java.nio.charset.Charset;
import org.yaml.snakeyaml.constructor.Constructor;
public class YamlDocument {
public static final String ROOT = "specification/";
private String source;
private String presentation;
private Object nativeData;
public YamlDocument(String sourceName, boolean check, Constructor constructor) {
InputStream input = YamlDocument.class.getClassLoader().getResourceAsStream(
ROOT + sourceName);
if (constructor == null) {
constructor = new Constructor();
}
Yaml yaml = new Yaml(constructor);
nativeData = yaml.load(input);
ByteArrayOutputStream output = new ByteArrayOutputStream();
Charset charset = Charset.forName("UTF-8");
yaml.dump(nativeData, new OutputStreamWriter(output, charset));
try {
presentation = output.toString(charset.name());
source = Util.getLocalResource(ROOT + sourceName);
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
// try to read generated presentation to prove that the presentation
// is identical to the source
Object result = yaml.load(presentation);
if (check && !nativeData.equals(result)) {
throw new RuntimeException("Generated presentation is not valid: " + presentation);
}
}
public YamlDocument(String sourceName, boolean check) {
this(sourceName, check, null);
}
public YamlDocument(String sourceName) {
this(sourceName, true);
}
public String getSource() {
return source;
}
public String getPresentation() {
return presentation;
}
public Object getNativeData() {
if (nativeData == null) {
throw new NullPointerException("No object is parsed.");
}
return nativeData;
}
}
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