/* | |
* See LICENSE file in distribution for copyright and licensing information. | |
*/ | |
package org.yaml.snakeyaml; | |
import java.io.ByteArrayOutputStream; | |
import java.io.IOException; | |
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(); | |
} | |
Loader loader = new Loader(constructor); | |
Yaml yaml = new Yaml(loader); | |
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); | |
} catch (IOException 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; | |
} | |
} |