240 lines
6.5 KiB
Java
240 lines
6.5 KiB
Java
/*
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* The Original Code is HAT. The Initial Developer of the
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* Original Code is Bill Foote, with contributions from others
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* at JavaSoft/Sun.
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*/
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package com.sun.tools.hat.internal.server;
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import java.io.PrintWriter;
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import com.sun.tools.hat.internal.model.*;
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import com.sun.tools.hat.internal.util.Misc;
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import java.io.StringWriter;
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import java.net.URLEncoder;
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import java.io.UnsupportedEncodingException;
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/**
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*
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* @author Bill Foote
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*/
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abstract class QueryHandler {
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protected String urlStart;
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protected String query;
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protected PrintWriter out;
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protected Snapshot snapshot;
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abstract void run();
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void setUrlStart(String s) {
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urlStart = s;
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}
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void setQuery(String s) {
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query = s;
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}
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void setOutput(PrintWriter o) {
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this.out = o;
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}
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void setSnapshot(Snapshot ss) {
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this.snapshot = ss;
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}
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protected String encodeForURL(String s) {
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try {
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s = URLEncoder.encode(s, "UTF-8");
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} catch (UnsupportedEncodingException ex) {
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// Should never happen
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ex.printStackTrace();
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}
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return s;
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}
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protected void startHtml(String title) {
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out.print("<html><title>");
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print(title);
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out.println("</title>");
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out.println("<body bgcolor=\"#ffffff\"><center><h1>");
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print(title);
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out.println("</h1></center>");
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}
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protected void endHtml() {
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out.println("</body></html>");
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}
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protected void error(String msg) {
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println(msg);
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}
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protected void printAnchorStart() {
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out.print("<a href=\"");
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out.print(urlStart);
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}
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protected void printThingAnchorTag(long id) {
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printAnchorStart();
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out.print("object/");
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printHex(id);
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out.print("\">");
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}
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protected void printObject(JavaObject obj) {
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printThing(obj);
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}
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protected void printThing(JavaThing thing) {
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if (thing == null) {
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out.print("null");
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return;
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}
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if (thing instanceof JavaHeapObject) {
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JavaHeapObject ho = (JavaHeapObject) thing;
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long id = ho.getId();
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if (id != -1L) {
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if (ho.isNew())
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out.println("<strong>");
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printThingAnchorTag(id);
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}
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print(thing.toString());
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if (id != -1) {
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if (ho.isNew())
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out.println("[new]</strong>");
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out.print(" (" + ho.getSize() + " bytes)");
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out.println("</a>");
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}
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} else {
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print(thing.toString());
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}
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}
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protected void printRoot(Root root) {
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StackTrace st = root.getStackTrace();
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boolean traceAvailable = (st != null) && (st.getFrames().length != 0);
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if (traceAvailable) {
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printAnchorStart();
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out.print("rootStack/");
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printHex(root.getIndex());
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out.print("\">");
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}
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print(root.getDescription());
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if (traceAvailable) {
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out.print("</a>");
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}
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}
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protected void printClass(JavaClass clazz) {
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if (clazz == null) {
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out.println("null");
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return;
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}
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printAnchorStart();
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out.print("class/");
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print(encodeForURL(clazz));
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out.print("\">");
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print(clazz.toString());
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out.println("</a>");
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}
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protected String encodeForURL(JavaClass clazz) {
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if (clazz.getId() == -1) {
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return encodeForURL(clazz.getName());
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} else {
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return clazz.getIdString();
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}
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}
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protected void printField(JavaField field) {
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print(field.getName() + " (" + field.getSignature() + ")");
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}
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protected void printStatic(JavaStatic member) {
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JavaField f = member.getField();
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printField(f);
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out.print(" : ");
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if (f.hasId()) {
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JavaThing t = member.getValue();
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printThing(t);
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} else {
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print(member.getValue().toString());
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}
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}
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protected void printStackTrace(StackTrace trace) {
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StackFrame[] frames = trace.getFrames();
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for (int i = 0; i < frames.length; i++) {
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StackFrame f = frames[i];
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String clazz = f.getClassName();
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out.print("<font color=purple>");
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print(clazz);
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out.print("</font>");
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print("." + f.getMethodName() + "(" + f.getMethodSignature() + ")");
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out.print(" <bold>:</bold> ");
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print(f.getSourceFileName() + " line " + f.getLineNumber());
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out.println("<br>");
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}
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}
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protected void printException(Throwable t) {
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println(t.getMessage());
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out.println("<pre>");
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StringWriter sw = new StringWriter();
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t.printStackTrace(new PrintWriter(sw));
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print(sw.toString());
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out.println("</pre>");
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}
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protected void printHex(long addr) {
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if (snapshot.getIdentifierSize() == 4) {
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out.print(Misc.toHex((int)addr));
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} else {
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out.print(Misc.toHex(addr));
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}
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}
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protected long parseHex(String value) {
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return Misc.parseHex(value);
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}
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protected void print(String str) {
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out.print(Misc.encodeHtml(str));
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}
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protected void println(String str) {
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out.println(Misc.encodeHtml(str));
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}
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}
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