jdk/src/share/classes/com/sun/tools/hat/internal/server/QueryHandler.java - platform/libcore - Git at Google

 /*
  * Copyright (c) 1997, 2008, 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.
  */


 /*
  * The Original Code is HAT. The Initial Developer of the
  * Original Code is Bill Foote, with contributions from others
  * at JavaSoft/Sun.
  */

 package com.sun.tools.hat.internal.server;

 import java.io.PrintWriter;

 import com.sun.tools.hat.internal.model.*;
 import com.sun.tools.hat.internal.util.Misc;
 import java.io.StringWriter;

 import java.net.URLEncoder;
 import java.io.UnsupportedEncodingException;

 /**
  *
  * @author      Bill Foote
  */


 abstract class QueryHandler {

     protected String urlStart;
     protected String query;
     protected PrintWriter out;
     protected Snapshot snapshot;

     abstract void run();


     void setUrlStart(String s) {
         urlStart = s;
     }

     void setQuery(String s) {
         query = s;
     }

     void setOutput(PrintWriter o) {
         this.out = o;
     }

     void setSnapshot(Snapshot ss) {
         this.snapshot = ss;
     }

     protected String encodeForURL(String s) {
         try {
             s = URLEncoder.encode(s, "UTF-8");
         } catch (UnsupportedEncodingException ex) {
             // Should never happen
             ex.printStackTrace();
         }
         return s;
     }

     protected void startHtml(String title) {
         out.print("<html><title>");
         print(title);
         out.println("</title>");
         out.println("<body bgcolor=\"#ffffff\"><center><h1>");
         print(title);
         out.println("</h1></center>");
     }

     protected void endHtml() {
         out.println("</body></html>");
     }

     protected void error(String msg) {
         println(msg);
     }

     protected void printAnchorStart() {
         out.print("<a href=\"");
         out.print(urlStart);
     }

     protected void printThingAnchorTag(long id) {
         printAnchorStart();
         out.print("object/");
         printHex(id);
         out.print("\">");
     }

     protected void printObject(JavaObject obj) {
         printThing(obj);
     }

     protected void printThing(JavaThing thing) {
         if (thing == null) {
             out.print("null");
             return;
         }
         if (thing instanceof JavaHeapObject) {
             JavaHeapObject ho = (JavaHeapObject) thing;
             long id = ho.getId();
             if (id != -1L) {
                 if (ho.isNew())
                 out.println("<strong>");
                 printThingAnchorTag(id);
             }
             print(thing.toString());
             if (id != -1) {
                 if (ho.isNew())
                     out.println("[new]</strong>");
                 out.print(" (" + ho.getSize() + " bytes)");
                 out.println("</a>");
             }
         } else {
             print(thing.toString());
         }
     }

     protected void printRoot(Root root) {
         StackTrace st = root.getStackTrace();
         boolean traceAvailable = (st != null) && (st.getFrames().length != 0);
         if (traceAvailable) {
             printAnchorStart();
             out.print("rootStack/");
             printHex(root.getIndex());
             out.print("\">");
         }
         print(root.getDescription());
         if (traceAvailable) {
             out.print("</a>");
         }
     }

     protected void printClass(JavaClass clazz) {
         if (clazz == null) {
             out.println("null");
             return;
         }
         printAnchorStart();
         out.print("class/");
         print(encodeForURL(clazz));
         out.print("\">");
         print(clazz.toString());
         out.println("</a>");
     }

     protected String encodeForURL(JavaClass clazz) {
         if (clazz.getId() == -1) {
             return encodeForURL(clazz.getName());
         } else {
             return clazz.getIdString();
         }
     }

     protected void printField(JavaField field) {
         print(field.getName() + " (" + field.getSignature() + ")");
     }

     protected void printStatic(JavaStatic member) {
         JavaField f = member.getField();
         printField(f);
         out.print(" : ");
         if (f.hasId()) {
             JavaThing t = member.getValue();
             printThing(t);
         } else {
             print(member.getValue().toString());
         }
     }

     protected void printStackTrace(StackTrace trace) {
         StackFrame[] frames = trace.getFrames();
         for (int i = 0; i < frames.length; i++) {
             StackFrame f = frames[i];
             String clazz = f.getClassName();
             out.print("<font color=purple>");
             print(clazz);
             out.print("</font>");
             print("." + f.getMethodName() + "(" + f.getMethodSignature() + ")");
             out.print(" <bold>:</bold> ");
             print(f.getSourceFileName() + " line " + f.getLineNumber());
             out.println("<br>");
         }
     }

     protected void printException(Throwable t) {
         println(t.getMessage());
         out.println("<pre>");
         StringWriter sw = new StringWriter();
         t.printStackTrace(new PrintWriter(sw));
         print(sw.toString());
         out.println("</pre>");
     }

     protected void printHex(long addr) {
         if (snapshot.getIdentifierSize() == 4) {
             out.print(Misc.toHex((int)addr));
         } else {
             out.print(Misc.toHex(addr));
         }
     }

     protected long parseHex(String value) {
         return Misc.parseHex(value);
     }

     protected void print(String str) {
         out.print(Misc.encodeHtml(str));
     }

     protected void println(String str) {
         out.println(Misc.encodeHtml(str));
     }
 }
	/*
	* Copyright (c) 1997, 2008, 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.
	*/


	/*
	* The Original Code is HAT. The Initial Developer of the
	* Original Code is Bill Foote, with contributions from others
	* at JavaSoft/Sun.
	*/

	package com.sun.tools.hat.internal.server;

	import java.io.PrintWriter;

	import com.sun.tools.hat.internal.model.*;
	import com.sun.tools.hat.internal.util.Misc;
	import java.io.StringWriter;

	import java.net.URLEncoder;
	import java.io.UnsupportedEncodingException;

	/**
	*
	* @author Bill Foote
	*/


	abstract class QueryHandler {

	protected String urlStart;
	protected String query;
	protected PrintWriter out;
	protected Snapshot snapshot;

	abstract void run();


	void setUrlStart(String s) {
	urlStart = s;
	}

	void setQuery(String s) {
	query = s;
	}

	void setOutput(PrintWriter o) {
	this.out = o;
	}

	void setSnapshot(Snapshot ss) {
	this.snapshot = ss;
	}

	protected String encodeForURL(String s) {
	try {
	s = URLEncoder.encode(s, "UTF-8");
	} catch (UnsupportedEncodingException ex) {
	// Should never happen
	ex.printStackTrace();
	}
	return s;
	}

	protected void startHtml(String title) {
	out.print("<html><title>");
	print(title);
	out.println("</title>");
	out.println("<body bgcolor=\"#ffffff\"><center><h1>");
	print(title);
	out.println("</h1></center>");
	}

	protected void endHtml() {
	out.println("</body></html>");
	}

	protected void error(String msg) {
	println(msg);
	}

	protected void printAnchorStart() {
	out.print("<a href=\"");
	out.print(urlStart);
	}

	protected void printThingAnchorTag(long id) {
	printAnchorStart();
	out.print("object/");
	printHex(id);
	out.print("\">");
	}

	protected void printObject(JavaObject obj) {
	printThing(obj);
	}

	protected void printThing(JavaThing thing) {
	if (thing == null) {
	out.print("null");
	return;
	}
	if (thing instanceof JavaHeapObject) {
	JavaHeapObject ho = (JavaHeapObject) thing;
	long id = ho.getId();
	if (id != -1L) {
	if (ho.isNew())
	out.println("<strong>");
	printThingAnchorTag(id);
	}
	print(thing.toString());
	if (id != -1) {
	if (ho.isNew())
	out.println("[new]</strong>");
	out.print(" (" + ho.getSize() + " bytes)");
	out.println("</a>");
	}
	} else {
	print(thing.toString());
	}
	}

	protected void printRoot(Root root) {
	StackTrace st = root.getStackTrace();
	boolean traceAvailable = (st != null) && (st.getFrames().length != 0);
	if (traceAvailable) {
	printAnchorStart();
	out.print("rootStack/");
	printHex(root.getIndex());
	out.print("\">");
	}
	print(root.getDescription());
	if (traceAvailable) {
	out.print("</a>");
	}
	}

	protected void printClass(JavaClass clazz) {
	if (clazz == null) {
	out.println("null");
	return;
	}
	printAnchorStart();
	out.print("class/");
	print(encodeForURL(clazz));
	out.print("\">");
	print(clazz.toString());
	out.println("</a>");
	}

	protected String encodeForURL(JavaClass clazz) {
	if (clazz.getId() == -1) {
	return encodeForURL(clazz.getName());
	} else {
	return clazz.getIdString();
	}
	}

	protected void printField(JavaField field) {
	print(field.getName() + " (" + field.getSignature() + ")");
	}

	protected void printStatic(JavaStatic member) {
	JavaField f = member.getField();
	printField(f);
	out.print(" : ");
	if (f.hasId()) {
	JavaThing t = member.getValue();
	printThing(t);
	} else {
	print(member.getValue().toString());
	}
	}

	protected void printStackTrace(StackTrace trace) {
	StackFrame[] frames = trace.getFrames();
	for (int i = 0; i < frames.length; i++) {
	StackFrame f = frames[i];
	String clazz = f.getClassName();
	out.print("<font color=purple>");
	print(clazz);
	out.print("</font>");
	print("." + f.getMethodName() + "(" + f.getMethodSignature() + ")");
	out.print(" <bold>:</bold> ");
	print(f.getSourceFileName() + " line " + f.getLineNumber());
	out.println("<br>");
	}
	}

	protected void printException(Throwable t) {
	println(t.getMessage());
	out.println("<pre>");
	StringWriter sw = new StringWriter();
	t.printStackTrace(new PrintWriter(sw));
	print(sw.toString());
	out.println("</pre>");
	}

	protected void printHex(long addr) {
	if (snapshot.getIdentifierSize() == 4) {
	out.print(Misc.toHex((int)addr));
	} else {
	out.print(Misc.toHex(addr));
	}
	}

	protected long parseHex(String value) {
	return Misc.parseHex(value);
	}

	protected void print(String str) {
	out.print(Misc.encodeHtml(str));
	}

	protected void println(String str) {
	out.println(Misc.encodeHtml(str));
	}
	}