dart/editor/tools/plugins/com.google.dart.tools.ui/src/com/google/dart/tools/ui/feedback/FeedbackUtils.java - external/dart - Git at Google

 /*
  * Copyright (c) 2012, the Dart project authors.
  *
  * Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
  *
  * 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 com.google.dart.tools.ui.feedback;

 import com.google.dart.engine.utilities.instrumentation.HealthUtils;
 import com.google.dart.engine.utilities.io.PrintStringWriter;
 import com.google.dart.tools.core.DartCore;
 import com.google.dart.tools.core.DartCoreDebug;
 import com.google.dart.tools.core.model.DartSdkManager;
 import com.google.dart.tools.core.utilities.net.NetUtils;
 import com.google.dart.tools.ui.DartToolsPlugin;

 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.Platform;
 import org.eclipse.swt.internal.Library;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.ui.IEditorReference;
 import org.eclipse.ui.PlatformUI;

 import java.lang.reflect.Field;
 import java.util.Map;
 import java.util.zip.CRC32;

 /**
  * Provides utility methods for feedback submission.
  */
 @SuppressWarnings("restriction")
 public class FeedbackUtils {

   /**
    * Contains information about the current session
    */
   public static class Stats {
     public final int numProjects;
     public final int numEditors;
     public final int numThreads;
     public final long maxMem;
     public final long totalMem;
     public final long freeMem;
     public final String indexStats;
     public final boolean autoRunPubEnabled;

     public Stats() {
       this(
           ResourcesPlugin.getWorkspace().getRoot().getProjects().length,
           getNumberOfOpenDartEditors(),
           getNumberOfThreads(),
           HealthUtils.getMaxMem(),
           Runtime.getRuntime().totalMemory(),
           Runtime.getRuntime().freeMemory(),
           DartCoreDebug.ENABLE_ANALYSIS_SERVER ? null
               : DartCore.getProjectManager().getIndex().getStatistics(),
           DartCore.getPlugin().isAutoRunPubEnabled());
     }

     public Stats(int numProjects, int numEditors, int numThreads, long maxMem, long totalMem,
         long freeMem, String indexStats, boolean autoRunPubEnabled) {
       this.numProjects = numProjects;
       this.numEditors = numEditors;
       this.numThreads = numThreads;
       this.maxMem = maxMem;
       this.totalMem = totalMem;
       this.freeMem = freeMem;
       this.indexStats = indexStats;
       this.autoRunPubEnabled = autoRunPubEnabled;
     }

     @Override
     public String toString() {
       @SuppressWarnings("resource")
       PrintStringWriter writer = new PrintStringWriter();

       writer.print("# projects: ");
       writer.println(numProjects);

       writer.print("# open dart files: ");
       writer.println(countString(numEditors));

       writer.println("auto-run pub: " + autoRunPubEnabled);

       writer.println("localhost resolves to: " + cleanLocalHost(NetUtils.getLoopbackAddress()));

       writer.print("mem max/total/free: ");
       writer.print(convertToMeg(maxMem));
       writer.print(" / ");
       writer.print(convertToMeg(totalMem));
       writer.print(" / ");
       writer.print(convertToMeg(freeMem));
       writer.println(" MB");

       writer.println("thread count: " + countString(numThreads));

       if (!DartCoreDebug.ENABLE_ANALYSIS_SERVER) {
         writer.println("index: " + indexStats);
       }

       return writer.toString();
     }

     /**
      * Converts the given number of bytes to the corresponding number of megabytes (rounded up).
      */
     private long convertToMeg(long numBytes) {
       return (numBytes + (512 * 1024)) / (1024 * 1024);
     }

     private String countString(int count) {
       return count == -1 ? "<unknown>" : Integer.toString(count);
     }

   }

   /**
    * Calculate a CRC-32 checksum for a given array of bytes.
    *
    * @param data the array of bytes
    * @return a CRC-32 checksum
    */
   public static String calculateCRC32(byte[] data) {
     CRC32 crc = new CRC32();

     crc.update(data);

     long val = crc.getValue();

     StringBuffer buf = new StringBuffer();

     buf.append(toHex((int) (0xFFL & (val >> 24))));
     buf.append(toHex((int) (0xFFL & (val >> 16))));
     buf.append(toHex((int) (0xFFL & (val >> 8))));
     buf.append(toHex((int) (0xFFL & (val))));

     return buf.toString().toUpperCase();
   }

   /**
    * Get a String representation of editor version details. Minimally, this will include the build
    * id. If a binary mismatch is detected (e.g., editor binary is 32 bit while the OS arch is 64
    * bit) the current binary bit info will be appended as well.
    *
    * @return a String representation of editor version details
    */
   public static String getEditorVersionDetails() {
     String binaryDetails = null;
     try {
       binaryDetails = binaryMismatch() ? " - " + getBinaryString() : "";
     } catch (Exception e) {
       binaryDetails = "- <unable to detect binary type>";
     }
     return DartToolsPlugin.getVersionString() + " (" + getBuildDate() + ") " + binaryDetails;
   }

   /**
    * Get a String representation of the current OS.
    *
    * @return a String representation of the current OS
    */
   public static String getOSName() {
     return System.getProperty("os.name") + " - " + getOSArch();
   }

   /**
    * Answer information about the current session
    */
   public static Stats getStats() {
     try {
       return new Stats();
     } catch (Exception e) {
       DartCore.logError("Exception obtaining information about the current session", e);
       return null;
     }
   }

   public static String getWS() {
     try {
       return Platform.getWS();
     } catch (Throwable ex) {
       return "unknown";
     }
   }

   /**
    * Return a list of the substrings in the given string that are separated by the given separator.
    * If the given flag is <code>true</code>, the substrings will have leading and trailing
    * whitespace removed.
    *
    * @param string the string to be split
    * @param separator the separator that delimits substrings
    * @param trimSubstrings <code>true</code> if substrings should be trimmed
    * @return the list of substrings that were found
    */
   public static String[] splitString(String string, String separator, boolean trimSubstrings) {
     String[] results = string.split(separator);

     if (trimSubstrings) {
       for (int i = 0; i < results.length; i++) {
         results[i] = results[i].trim();
       }
     }

     return results;
   }

   static Map<String, String> getSparseOptionsMap() {
     return Platform.isRunning() ? DartCoreDebug.SPARSE_OPTION_MAP : null;
   }

   static boolean isDartiumInstalled() {
     return isSdkInstalled() && DartSdkManager.getManager().isDartiumInstalled();
   }

   static boolean isSdkInstalled() {
     return DartSdkManager.getManager().hasSdk();
   }

   private static boolean binaryMismatch() throws Exception {
     return is64bitOS() != is64bitBinary();
   }

   /**
    * If localhost doesn't resolve to something we know to be generic, just return "other". This is
    * used to make sure that we don't accidentally send user identifying information.
    *
    * @param host
    * @return
    */
   private static String cleanLocalHost(String host) {
     if (host.startsWith("local") || host.startsWith("127.") || host.startsWith("::")) {
       return host;
     } else {
       return "other";
     }
   }

   private static String getBinaryString() throws Exception {
     return "*" + (is64bitBinary() ? "64" : "32") + " bit binary*";
   }

   private static String getBuildDate() {
     return DartCore.getBuildDate();
   }

   private static int getNumberOfOpenDartEditors() {

     final Integer[] projects = new Integer[] {-1};

     Display.getDefault().syncExec(new Runnable() {
       @Override
       public void run() {
         try {
           int count = 0;
           for (IEditorReference ref : PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getEditorReferences()) {
             if (DartCore.isDartLikeFileName(ref.getPartName())) {
               ++count;
             }
           }
           projects[0] = count;
         } catch (Throwable e) {
           //ignore --- -1 value indicates a failure
         }
       }
     });

     return projects[0];
   }

   private static int getNumberOfThreads() {
     try {
       return Thread.getAllStackTraces().keySet().size();
     } catch (Throwable e) {
       return -1;
     }
   }

   private static String getOSArch() {
     return System.getProperty("os.arch") + " (" + System.getProperty("os.version") + ")";
   }

   private static boolean is64bitBinary() throws Exception {
     Class<Library> swtLibraryClass = Library.class;
     Field is64 = swtLibraryClass.getDeclaredField("IS_64");
     is64.setAccessible(true);
     return is64.getBoolean(swtLibraryClass);
   }

   private static boolean is64bitOS() {
     return getOSArch().contains("64");
   }

   /**
    * Convert an integer to a hex string.
    *
    * @param i an integer
    * @return a hex representation of the given integer
    */
   private static String toHex(int i) {
     String str = Integer.toHexString(0xFF & i);

     if (str.length() < 2) {
       str = "0" + str;
     }

     return str;
   }
 }
	/*
	* Copyright (c) 2012, the Dart project authors.
	*
	* Licensed under the Eclipse Public License v1.0 (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.eclipse.org/legal/epl-v10.html
	*
	* 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 com.google.dart.tools.ui.feedback;

	import com.google.dart.engine.utilities.instrumentation.HealthUtils;
	import com.google.dart.engine.utilities.io.PrintStringWriter;
	import com.google.dart.tools.core.DartCore;
	import com.google.dart.tools.core.DartCoreDebug;
	import com.google.dart.tools.core.model.DartSdkManager;
	import com.google.dart.tools.core.utilities.net.NetUtils;
	import com.google.dart.tools.ui.DartToolsPlugin;

	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.Platform;
	import org.eclipse.swt.internal.Library;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.ui.IEditorReference;
	import org.eclipse.ui.PlatformUI;

	import java.lang.reflect.Field;
	import java.util.Map;
	import java.util.zip.CRC32;

	/**
	* Provides utility methods for feedback submission.
	*/
	@SuppressWarnings("restriction")
	public class FeedbackUtils {

	/**
	* Contains information about the current session
	*/
	public static class Stats {
	public final int numProjects;
	public final int numEditors;
	public final int numThreads;
	public final long maxMem;
	public final long totalMem;
	public final long freeMem;
	public final String indexStats;
	public final boolean autoRunPubEnabled;

	public Stats() {
	this(
	ResourcesPlugin.getWorkspace().getRoot().getProjects().length,
	getNumberOfOpenDartEditors(),
	getNumberOfThreads(),
	HealthUtils.getMaxMem(),
	Runtime.getRuntime().totalMemory(),
	Runtime.getRuntime().freeMemory(),
	DartCoreDebug.ENABLE_ANALYSIS_SERVER ? null
	: DartCore.getProjectManager().getIndex().getStatistics(),
	DartCore.getPlugin().isAutoRunPubEnabled());
	}

	public Stats(int numProjects, int numEditors, int numThreads, long maxMem, long totalMem,
	long freeMem, String indexStats, boolean autoRunPubEnabled) {
	this.numProjects = numProjects;
	this.numEditors = numEditors;
	this.numThreads = numThreads;
	this.maxMem = maxMem;
	this.totalMem = totalMem;
	this.freeMem = freeMem;
	this.indexStats = indexStats;
	this.autoRunPubEnabled = autoRunPubEnabled;
	}

	@Override
	public String toString() {
	@SuppressWarnings("resource")
	PrintStringWriter writer = new PrintStringWriter();

	writer.print("# projects: ");
	writer.println(numProjects);

	writer.print("# open dart files: ");
	writer.println(countString(numEditors));

	writer.println("auto-run pub: " + autoRunPubEnabled);

	writer.println("localhost resolves to: " + cleanLocalHost(NetUtils.getLoopbackAddress()));

	writer.print("mem max/total/free: ");
	writer.print(convertToMeg(maxMem));
	writer.print(" / ");
	writer.print(convertToMeg(totalMem));
	writer.print(" / ");
	writer.print(convertToMeg(freeMem));
	writer.println(" MB");

	writer.println("thread count: " + countString(numThreads));

	if (!DartCoreDebug.ENABLE_ANALYSIS_SERVER) {
	writer.println("index: " + indexStats);
	}

	return writer.toString();
	}

	/**
	* Converts the given number of bytes to the corresponding number of megabytes (rounded up).
	*/
	private long convertToMeg(long numBytes) {
	return (numBytes + (512 * 1024)) / (1024 * 1024);
	}

	private String countString(int count) {
	return count == -1 ? "<unknown>" : Integer.toString(count);
	}

	}

	/**
	* Calculate a CRC-32 checksum for a given array of bytes.
	*
	* @param data the array of bytes
	* @return a CRC-32 checksum
	*/
	public static String calculateCRC32(byte[] data) {
	CRC32 crc = new CRC32();

	crc.update(data);

	long val = crc.getValue();

	StringBuffer buf = new StringBuffer();

	buf.append(toHex((int) (0xFFL & (val >> 24))));
	buf.append(toHex((int) (0xFFL & (val >> 16))));
	buf.append(toHex((int) (0xFFL & (val >> 8))));
	buf.append(toHex((int) (0xFFL & (val))));

	return buf.toString().toUpperCase();
	}

	/**
	* Get a String representation of editor version details. Minimally, this will include the build
	* id. If a binary mismatch is detected (e.g., editor binary is 32 bit while the OS arch is 64
	* bit) the current binary bit info will be appended as well.
	*
	* @return a String representation of editor version details
	*/
	public static String getEditorVersionDetails() {
	String binaryDetails = null;
	try {
	binaryDetails = binaryMismatch() ? " - " + getBinaryString() : "";
	} catch (Exception e) {
	binaryDetails = "- <unable to detect binary type>";
	}
	return DartToolsPlugin.getVersionString() + " (" + getBuildDate() + ") " + binaryDetails;
	}

	/**
	* Get a String representation of the current OS.
	*
	* @return a String representation of the current OS
	*/
	public static String getOSName() {
	return System.getProperty("os.name") + " - " + getOSArch();
	}

	/**
	* Answer information about the current session
	*/
	public static Stats getStats() {
	try {
	return new Stats();
	} catch (Exception e) {
	DartCore.logError("Exception obtaining information about the current session", e);
	return null;
	}
	}

	public static String getWS() {
	try {
	return Platform.getWS();
	} catch (Throwable ex) {
	return "unknown";
	}
	}

	/**
	* Return a list of the substrings in the given string that are separated by the given separator.
	* If the given flag is <code>true</code>, the substrings will have leading and trailing
	* whitespace removed.
	*
	* @param string the string to be split
	* @param separator the separator that delimits substrings
	* @param trimSubstrings <code>true</code> if substrings should be trimmed
	* @return the list of substrings that were found
	*/
	public static String[] splitString(String string, String separator, boolean trimSubstrings) {
	String[] results = string.split(separator);

	if (trimSubstrings) {
	for (int i = 0; i < results.length; i++) {
	results[i] = results[i].trim();
	}
	}

	return results;
	}

	static Map<String, String> getSparseOptionsMap() {
	return Platform.isRunning() ? DartCoreDebug.SPARSE_OPTION_MAP : null;
	}

	static boolean isDartiumInstalled() {
	return isSdkInstalled() && DartSdkManager.getManager().isDartiumInstalled();
	}

	static boolean isSdkInstalled() {
	return DartSdkManager.getManager().hasSdk();
	}

	private static boolean binaryMismatch() throws Exception {
	return is64bitOS() != is64bitBinary();
	}

	/**
	* If localhost doesn't resolve to something we know to be generic, just return "other". This is
	* used to make sure that we don't accidentally send user identifying information.
	*
	* @param host
	* @return
	*/
	private static String cleanLocalHost(String host) {
	if (host.startsWith("local") \|\| host.startsWith("127.") \|\| host.startsWith("::")) {
	return host;
	} else {
	return "other";
	}
	}

	private static String getBinaryString() throws Exception {
	return "" + (is64bitBinary() ? "64" : "32") + " bit binary";
	}

	private static String getBuildDate() {
	return DartCore.getBuildDate();
	}

	private static int getNumberOfOpenDartEditors() {

	final Integer[] projects = new Integer[] {-1};

	Display.getDefault().syncExec(new Runnable() {
	@Override
	public void run() {
	try {
	int count = 0;
	for (IEditorReference ref : PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getEditorReferences()) {
	if (DartCore.isDartLikeFileName(ref.getPartName())) {
	++count;
	}
	}
	projects[0] = count;
	} catch (Throwable e) {
	//ignore --- -1 value indicates a failure
	}
	}
	});

	return projects[0];
	}

	private static int getNumberOfThreads() {
	try {
	return Thread.getAllStackTraces().keySet().size();
	} catch (Throwable e) {
	return -1;
	}
	}

	private static String getOSArch() {
	return System.getProperty("os.arch") + " (" + System.getProperty("os.version") + ")";
	}

	private static boolean is64bitBinary() throws Exception {
	Class<Library> swtLibraryClass = Library.class;
	Field is64 = swtLibraryClass.getDeclaredField("IS_64");
	is64.setAccessible(true);
	return is64.getBoolean(swtLibraryClass);
	}

	private static boolean is64bitOS() {
	return getOSArch().contains("64");
	}

	/**
	* Convert an integer to a hex string.
	*
	* @param i an integer
	* @return a hex representation of the given integer
	*/
	private static String toHex(int i) {
	String str = Integer.toHexString(0xFF & i);

	if (str.length() < 2) {
	str = "0" + str;
	}

	return str;
	}
	}