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/*
* The original version of this file was provided under the MIT license,
* as follows:
*
* @(#)YamlParser.java $Rev: 3 $ $Release: 0.5.1 $
*
* Copyright (c) <2005> <kuwata lab>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Modifications to this file are provided under the Apache 2.0 license,
* as follows:
* Copyright (c) 2017 <AT&T>. All rights reserved.
*
* 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 kwalify;
import java.util.Map;
import java.util.HashMap;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.ArrayList;
import java.util.Iterator;
/**
* yaml parser which can keep line number of path.
*
* ex.
* <pre>
* String yaml_str = Util.readFile("document.yaml");
* YamlParser parser = new YamlParser(yaml_str);
* Object document = parser.parse();
* </pre>
*/
public class YamlParser extends PlainYamlParser {
private Map _linenums_table = new IdentityHashMap(); // object => sequence or mapping
private int _first_linenum = -1;
private Object _document = null;
public YamlParser(String yaml_str) {
super(yaml_str);
}
public Object parse() throws SyntaxException {
_document = super.parse();
return _document;
}
protected String getLine() {
String line = super.getLine();
if (_first_linenum < 0) {
_first_linenum = currentLineNumber();
}
return line;
}
public int getPathLineNumber(String ypath) throws InvalidPathException {
if (_document == null) {
return -1;
}
if (ypath.length() == 0 || ypath.equals("/")) {
return 1;
}
String[] elems = ypath.split("/");
String last_elem = elems.length > 0 ? elems[elems.length - 1] : null;
int i = ypath.charAt(0) == '/' ? 1 : 0;
int len = elems.length - 1;
Object c = _document; // collection
for ( /* nothing */ ; i < len; i++) {
if (c == null) {
throw new InvalidPathException(ypath);
} else if (c instanceof Map) {
c = ((Map)c).get(elems[i]);
} else if (c instanceof List) {
int index = Integer.parseInt(elems[i]);
if (index < 0 || ((List)c).size() < index) {
throw new InvalidPathException(ypath);
}
c = ((List)c).get(index);
} else {
throw new InvalidPathException(ypath);
}
}
if (c == null) {
throw new InvalidPathException(ypath);
}
Object linenums = _linenums_table.get(c); // Map or List
int linenum = -1;
if (c instanceof Map) {
assert linenums instanceof Map;
Object d = ((Map)linenums).get(last_elem);
linenum = ((Integer)d).intValue();
} else if (c instanceof List) {
assert linenums instanceof List;
int index = Integer.parseInt(last_elem);
if (index < 0 || ((List)linenums).size() <= index) {
throw new InvalidPathException(ypath);
}
Object d = ((List)linenums).get(index);
linenum = ((Integer)d).intValue();
} else {
throw new InvalidPathException(ypath);
}
return linenum;
}
public void setErrorsLineNumber(List errors) throws InvalidPathException {
for (Iterator it = errors.iterator(); it.hasNext(); ) {
ValidationException ex = (ValidationException)it.next();
ex.setLineNumber(getPathLineNumber(ex.getPath()));
}
}
protected List createSequence(int linenum) {
List seq = new ArrayList();
_linenums_table.put(seq, new ArrayList());
return seq;
}
protected void addSequenceValue(List seq, Object value, int linenum) {
seq.add(value);
List linenums = (List)_linenums_table.get(seq);
linenums.add(new Integer(linenum));
}
protected void setSequenceValueAt(List seq, int index, Object value, int linenum) {
seq.set(index, value);
List linenums = (List)_linenums_table.get(seq);
linenums.set(index, new Integer(linenum));
}
protected Map createMapping(int linenum) {
Map map = super.createMapping(linenum);
_linenums_table.put(map, new HashMap());
return map;
}
protected void setMappingValueWith(Map map, Object key, Object value, int linenum) {
map.put(key, value);
Map linenums = (Map)_linenums_table.get(map);
assert linenums != null;
linenums.put(key, new Integer(linenum));
}
protected void setMappingDefault(Map map, Object value, int linenum) {
super.setMappingDefault(map, value, linenum);
Map linenums = (Map)_linenums_table.get(map);
linenums.put(new Character('='), new Integer(linenum));
}
protected void mergeMapping(Map map, Map map2, int linenum) {
Map linenums = (Map)_linenums_table.get(map);
Map linenums2 = (Map)_linenums_table.get(map2);
assert linenums2 != null;
for (Iterator it = map2.keySet().iterator(); it.hasNext(); ) {
Object key = it.next();
if (! map.containsKey(key)) {
map.put(key, map2.get(key));
linenums.put(key, linenums2.get(key));
}
}
}
}
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