feat(jdk8): move files to new folder to avoid resources compiled.

jdkSrc/jdk8/jdk/jfr/internal/jfc/JFC.java

@@ -0,0 +1,247 @@
+/*
+ * Copyright (c) 2016, 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.IOException;
+import java.io.InputStream;
+import java.io.Reader;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.NoSuchFileException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.text.ParseException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import jdk.jfr.Configuration;
+import jdk.jfr.internal.LogLevel;
+import jdk.jfr.internal.LogTag;
+import jdk.jfr.internal.Logger;
+import jdk.jfr.internal.SecuritySupport;
+import jdk.jfr.internal.SecuritySupport.SafePath;
+
+/**
+ * {@link Configuration} factory for JFC files. *
+ */
+public final class JFC {
+    private static final int BUFFER_SIZE = 8192;
+    private static final int MAXIMUM_FILE_SIZE = 1024 * 1024;
+    private static final int MAX_BUFFER_SIZE = Integer.MAX_VALUE - 8;
+    private static volatile List<KnownConfiguration> knownConfigurations;
+
+    /**
+     * Reads a known configuration file (located into a string, but doesn't
+     * parse it until it's being used.
+     */
+    private static final class KnownConfiguration {
+        private final String content;
+        private final String filename;
+        private final String name;
+        private Configuration configuration;
+
+        public KnownConfiguration(SafePath knownPath) throws IOException {
+            this.content = readContent(knownPath);
+            this.name = nameFromPath(knownPath.toPath());
+            this.filename = nullSafeFileName(knownPath.toPath());
+        }
+
+        public boolean isNamed(String name) {
+            return filename.equals(name) || this.name.equals(name);
+        }
+
+        public Configuration getConfigurationFile() throws IOException, ParseException {
+            if (configuration == null) {
+                configuration = JFCParser.createConfiguration(name, content);
+            }
+            return configuration;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        private static String readContent(SafePath knownPath) throws IOException {
+            if (SecuritySupport.getFileSize(knownPath) > MAXIMUM_FILE_SIZE) {
+                throw new IOException("Configuration with more than "
+                        + MAXIMUM_FILE_SIZE + " characters can't be read.");
+            }
+            try (InputStream r = SecuritySupport.newFileInputStream(knownPath)) {
+                return JFC.readContent(r);
+            }
+        }
+    }
+
+    private JFC() {
+        // private utility class
+    }
+
+    /**
+     * Reads a configuration from a file.
+     *
+     * @param path the file containing the configuration, not {@code null}
+     * @return {@link Configuration}, not {@code null}
+     * @throws ParseException if the file can't be parsed
+     * @throws IOException if the file can't be read
+     *
+     * @throws SecurityException if a security manager exists and its
+     *         <code>checkRead</code> method denies read access to the file.
+     * @see java.io.File#getPath()
+     * @see java.lang.SecurityManager#checkRead(java.lang.String)
+     */
+    public static Configuration create(String name, Reader reader) throws IOException, ParseException {
+        return JFCParser.createConfiguration(name, reader);
+    }
+
+    private static String nullSafeFileName(Path file) throws IOException {
+        Path filename = file.getFileName();
+        if (filename == null) {
+            throw new IOException("Path has no file name");
+        }
+        return filename.toString();
+    }
+
+    public static String nameFromPath(Path file) throws IOException {
+        String f = nullSafeFileName(file);
+        if (f.endsWith(JFCParser.FILE_EXTENSION)) {
+            return f.substring(0, f.length() - JFCParser.FILE_EXTENSION.length());
+        } else  {
+            return f;
+        }
+    }
+
+    // Invoked by DCmdStart
+    public static Configuration createKnown(String name) throws IOException, ParseException {
+        // Known name, no need for permission
+        for (KnownConfiguration known : getKnownConfigurations()) {
+            if (known.isNamed(name)) {
+                return known.getConfigurationFile();
+            }
+        }
+        // Check JFC directory
+        SafePath path = SecuritySupport.JFC_DIRECTORY;
+        if (path != null && SecuritySupport.exists(path)) {
+            for (String extension : Arrays.asList("", JFCParser.FILE_EXTENSION)) {
+                SafePath file = new SafePath(path.toPath().resolveSibling(name + extension));
+                if (SecuritySupport.exists(file) && !SecuritySupport.isDirectory(file)) {
+                    try (Reader r = SecuritySupport.newFileReader(file)) {
+                        String jfcName = nameFromPath(file.toPath());
+                        return JFCParser.createConfiguration(jfcName, r);
+                    }
+                }
+            }
+        }
+
+        // Assume path included in name
+
+        Path localPath = Paths.get(name);
+        String jfcName = nameFromPath(localPath);
+        try (Reader r = Files.newBufferedReader(localPath)) {
+            return JFCParser.createConfiguration(jfcName, r);
+        }
+    }
+
+    private static String readContent(InputStream source) throws IOException {
+        byte[] bytes = read(source, BUFFER_SIZE);
+        return new String(bytes, StandardCharsets.UTF_8);
+    }
+
+    // copied from java.io.file.Files to avoid dependency on JDK 9 code
+    private static byte[] read(InputStream source, int initialSize) throws IOException {
+        int capacity = initialSize;
+        byte[] buf = new byte[capacity];
+        int nread = 0;
+        int n;
+        for (;;) {
+            // read to EOF which may read more or less than initialSize (eg: file
+            // is truncated while we are reading)
+            while ((n = source.read(buf, nread, capacity - nread)) > 0)
+                nread += n;
+
+            // if last call to source.read() returned -1, we are done
+            // otherwise, try to read one more byte; if that failed we're done too
+            if (n < 0 || (n = source.read()) < 0)
+                break;
+
+            // one more byte was read; need to allocate a larger buffer
+            if (capacity <= MAX_BUFFER_SIZE - capacity) {
+                capacity = Math.max(capacity << 1, BUFFER_SIZE);
+            } else {
+                if (capacity == MAX_BUFFER_SIZE)
+                    throw new OutOfMemoryError("Required array size too large");
+                capacity = MAX_BUFFER_SIZE;
+            }
+            buf = Arrays.copyOf(buf, capacity);
+            buf[nread++] = (byte)n;
+        }
+        return (capacity == nread) ? buf : Arrays.copyOf(buf, nread);
+    }
+
+
+    /**
+     * Returns list of predefined configurations available.
+     *
+     * @return list of configurations, not null
+     */
+    public static List<Configuration> getConfigurations() {
+        List<Configuration> configs = new ArrayList<>();
+        for (KnownConfiguration knownConfig : getKnownConfigurations()) {
+            try {
+                configs.add(knownConfig.getConfigurationFile());
+            } catch (IOException e) {
+                Logger.log(LogTag.JFR, LogLevel.WARN, "Could not load configuration " + knownConfig.getName() + ". " + e.getMessage());
+            } catch (ParseException e) {
+                Logger.log(LogTag.JFR, LogLevel.WARN, "Could not parse configuration " + knownConfig.getName() + ". " + e.getMessage());
+            }
+        }
+        return configs;
+    }
+
+    private static List<KnownConfiguration> getKnownConfigurations() {
+        if (knownConfigurations == null) {
+            List<KnownConfiguration> configProxies = new ArrayList<>();
+            for (SafePath p : SecuritySupport.getPredefinedJFCFiles()) {
+                try {
+                    configProxies.add(new KnownConfiguration(p));
+                } catch (IOException ioe) {
+                    // ignore
+                }
+            }
+            knownConfigurations = configProxies;
+        }
+        return knownConfigurations;
+    }
+
+    public static Configuration getPredefined(String name) throws IOException, ParseException {
+        for (KnownConfiguration knownConfig : getKnownConfigurations()) {
+            if (knownConfig.getName().equals(name)) {
+                return knownConfig.getConfigurationFile();
+            }
+        }
+        throw new NoSuchFileException("Could not locate configuration with name " + name);
+    }
+}

jdkSrc/jdk8/jdk/jfr/internal/jfc/JFCParser.java

@@ -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());
+    }
+}

jdkSrc/jdk8/jdk/jfr/internal/jfc/JFCParserHandler.java

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2016, 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.util.LinkedHashMap;
+import java.util.Map;
+
+import jdk.internal.org.xml.sax.Attributes;
+import jdk.internal.org.xml.sax.SAXException;
+import jdk.internal.org.xml.sax.helpers.DefaultHandler;
+
+final class JFCParserHandler extends DefaultHandler {
+    private static final String ELEMENT_CONFIGURATION = "configuration";
+    private static final String ELEMENT_EVENT_TYPE = "event";
+    private static final String ELEMENT_SETTING = "setting";
+    private static final String ATTRIBUTE_NAME = "name";
+    private static final String ATTRIBUTE_LABEL = "label";
+    private static final String ATTRIBUTE_DESCRIPTION = "description";
+    private static final String ATTRIBUTE_PROVIDER = "provider";
+    private static final String ATTRIBUTE_VERSION = "version";
+
+    final Map<String, String> settings = new LinkedHashMap<String, String>();
+    private String currentEventPath;
+    private String currentSettingsName;
+    private StringBuilder currentCharacters;
+    String label;
+    String provider;
+    String description;
+
+    @Override
+    public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {
+        switch (qName.toLowerCase()) {
+        case ELEMENT_CONFIGURATION:
+            String version = attributes.getValue(ATTRIBUTE_VERSION);
+            if (version == null || !version.startsWith("2.")) {
+               throw new SAXException("This version of Flight Recorder can only read JFC file format version 2.x");
+            }
+            label = attributes.getValue(ATTRIBUTE_LABEL);
+            description = getOptional(attributes, ATTRIBUTE_DESCRIPTION, "");
+            provider = getOptional(attributes, ATTRIBUTE_PROVIDER, "");
+            break;
+        case ELEMENT_EVENT_TYPE:
+            currentEventPath = attributes.getValue(ATTRIBUTE_NAME);
+            break;
+        case ELEMENT_SETTING:
+            currentSettingsName = attributes.getValue(ATTRIBUTE_NAME);
+            break;
+        }
+        currentCharacters = null;
+    }
+
+    private String getOptional(Attributes attributes, String name, String defaultValue) {
+        String value = attributes.getValue(name);
+        return value == null ? defaultValue : value;
+    }
+
+    @Override
+    public void characters(char[] ch, int start, int length) throws SAXException {
+        if (currentCharacters == null) {
+            currentCharacters = new StringBuilder(length);
+        }
+        currentCharacters.append(ch, start, length);
+    }
+
+    @Override
+    public void endElement(String uri, String localName, String qName) {
+        switch (qName.toLowerCase()) {
+        case ELEMENT_CONFIGURATION:
+            break;
+        case ELEMENT_EVENT_TYPE:
+            currentEventPath = null;
+            break;
+        case ELEMENT_SETTING:
+            String settingsValue = currentCharacters == null ? "" : currentCharacters.toString();
+            settings.put(currentEventPath + "#" + currentSettingsName, "" + settingsValue);
+            currentSettingsName = null;
+            break;
+        }
+    }
+
+    public Map<String, String> getSettings() {
+        return settings;
+    }
+}

jdkSrc/jdk8/jdk/jfr/internal/jfc/package-info.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2016, 2019, 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.
+ */
+
+/**
+ * This package contains classes for configuring Flight Recorder using JFC-files.
+ *
+ * @since 8
+ */
+package jdk.jfr.internal.jfc;