--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/jdk.jfr/share/classes/jdk/jfr/internal/jfc/JFCParser.java Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2012, 2018, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package jdk.jfr.internal.jfc;
+
+import java.io.CharArrayReader;
+import java.io.CharArrayWriter;
+import java.io.IOException;
+import java.io.Reader;
+import java.text.ParseException;
+import jdk.internal.org.xml.sax.InputSource;
+import jdk.internal.org.xml.sax.SAXException;
+import jdk.internal.util.xml.SAXParser;
+import jdk.internal.util.xml.impl.SAXParserImpl;
+import jdk.jfr.Configuration;
+
+import jdk.jfr.internal.PrivateAccess;
+
+/**
+ * Parses a JDK Flight Recorder Configuration file (.jfc)
+ */
+final class JFCParser {
+ static final String FILE_EXTENSION = ".jfc";
+ private static final int MAXIMUM_FILE_SIZE = 1024 * 1024;
+
+ public static Configuration createConfiguration(String name, Reader reader) throws IOException, ParseException {
+ return createConfiguration(name, readContent(reader));
+ }
+
+ public static Configuration createConfiguration(String name, String content) throws IOException, ParseException {
+ try {
+ JFCParserHandler ch = new JFCParserHandler();
+ parseXML(content, ch);
+ return PrivateAccess.getInstance().newConfiguration(name, ch.label, ch.description, ch.provider, ch.settings, content);
+ } catch (IllegalArgumentException iae) {
+ throw new ParseException(iae.getMessage(), -1);
+ } catch (SAXException e) {
+ ParseException pe = new ParseException("Error reading JFC file. " + e.getMessage(), -1);
+ pe.initCause(e);
+ throw pe;
+ }
+ }
+
+ private static void parseXML(String content, JFCParserHandler ch) throws SAXException, IOException {
+ CharArrayReader r = new CharArrayReader(content.toCharArray());
+ SAXParser parser = new SAXParserImpl();
+ parser.parse(new InputSource(r), ch);
+ }
+
+ private static String readContent(Reader r) throws IOException {
+ CharArrayWriter writer = new CharArrayWriter(1024);
+ int count = 0;
+ int ch;
+ while ((ch = r.read()) != -1) {
+ writer.write(ch);
+ count++;
+ if (count >= MAXIMUM_FILE_SIZE) {
+ throw new IOException("Presets with more than " + MAXIMUM_FILE_SIZE + " characters can't be read.");
+ }
+ }
+ return new String(writer.toCharArray());
+ }
+}