/*
* The MIT License
*
* Copyright (c) 2011 by Stanislav Lomadurov <lord.rojer@gmail.com>
*
* 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.
*/
package org.lomatek.jslint;
import java.io.IOException;
import java.util.List;
import java.util.ArrayList;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.NativeObject;
import org.mozilla.javascript.NativeArray;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.Reader;
import java.nio.charset.Charset;
import org.openide.util.Exceptions;
/**
*
* @author Stanislav Lomadurov <lord.rojer@gmail.com>
*/
final public class JSLintRun {
private static JSLintRun instance;
/**
* Rhino context
* @url https://developer.mozilla.org/En/Rhino_documentation/Scopes_and_Contexts
*/
private Context context = null;
private Scriptable scope = null;
JSLintRun() {
}
public static JSLintRun getInstance() {
if (instance == null) {
instance = new JSLintRun();
}
return instance;
}
public List<JSLintIssue> run(String contents) {
init();
scope.put("contents", scope, contents);
// Get options
scope.put("opts", scope, JSLintOptions.getInstance().getOptions(context, scope));
context.evaluateString(scope, "results = JSLINT(contents, opts);", "JSLint", 1, null);
Scriptable lint = (Scriptable) scope.get("JSLINT", scope);
// Выходим из контекста
context.exit();
// Get JSLint errors
NativeArray errors = (NativeArray) lint.get("errors", null);
List<JSLintIssue> result = new ArrayList<JSLintIssue>();
for (int i = 0; i < errors.getLength(); i++) {
NativeObject error = (NativeObject) errors.get(i, null);
if (null == error) {
continue;
}
// Add error
result.add(new JSLintIssue(error));
}
return result;
}
public void init() {
try {
context = Context.enter();
context.setLanguageVersion(Context.VERSION_1_6);
if (null == scope) {
scope = context.initStandardObjects();
Reader reader = new BufferedReader(new InputStreamReader(getClass().getClassLoader().getResourceAsStream("org/lomatek/jslint/resources/jslint.js"), Charset.forName("UTF-8")));
context.evaluateReader(scope, reader, "JSLint", 1, null);
}
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
}
}