/* * Copyright (c) 1998, 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. */package com.sun.tools.example.debug.gui;import java.io.*;import java.util.*;import com.sun.jdi.*;import com.sun.tools.example.debug.event.*;/** * Manage the list of source files. * Origin of SourceListener events. */public class SourceManager { //### TODO: The source cache should be aged, and some cap //### put on memory consumption by source files loaded into core. private List<SourceModel> sourceList; private SearchPath sourcePath; private ArrayList<SourceListener> sourceListeners = new ArrayList<SourceListener>(); private Map<ReferenceType, SourceModel> classToSource = new HashMap<ReferenceType, SourceModel>(); private Environment env; /** * Hold on to it so it can be removed. */ private SMClassListener classListener = new SMClassListener(); public SourceManager(Environment env) { this(env, new SearchPath("")); } public SourceManager(Environment env, SearchPath sourcePath) { this.env = env; this.sourceList = new LinkedList<SourceModel>(); this.sourcePath = sourcePath; env.getExecutionManager().addJDIListener(classListener); } /** * Set path for access to source code. */ public void setSourcePath(SearchPath sp) { sourcePath = sp; // Old cached sources are now invalid. sourceList = new LinkedList<SourceModel>(); notifySourcepathChanged(); classToSource = new HashMap<ReferenceType, SourceModel>(); } public void addSourceListener(SourceListener l) { sourceListeners.add(l); } public void removeSourceListener(SourceListener l) { sourceListeners.remove(l); } private void notifySourcepathChanged() { ArrayList<SourceListener> l = new ArrayList<SourceListener>(sourceListeners); SourcepathChangedEvent evt = new SourcepathChangedEvent(this); for (int i = 0; i < l.size(); i++) { l.get(i).sourcepathChanged(evt); } } /** * Get path for access to source code. */ public SearchPath getSourcePath() { return sourcePath; } /** * Get source object associated with a Location. */ public SourceModel sourceForLocation(Location loc) { return sourceForClass(loc.declaringType()); } /** * Get source object associated with a class or interface. * Returns null if not available. */ public SourceModel sourceForClass(ReferenceType refType) { SourceModel sm = classToSource.get(refType); if (sm != null) { return sm; } try { String filename = refType.sourceName(); String refName = refType.name(); int iDot = refName.lastIndexOf('.'); String pkgName = (iDot >= 0)? refName.substring(0, iDot+1) : ""; String full = pkgName.replace('.', File.separatorChar) + filename; File path = sourcePath.resolve(full); if (path != null) { sm = sourceForFile(path); classToSource.put(refType, sm); return sm; } return null; } catch (AbsentInformationException e) { return null; } } /** * Get source object associated with an absolute file path. */ //### Use hash table for this? public SourceModel sourceForFile(File path) { Iterator<SourceModel> iter = sourceList.iterator(); SourceModel sm = null; while (iter.hasNext()) { SourceModel candidate = iter.next(); if (candidate.fileName().equals(path)) { sm = candidate; iter.remove(); // Will move to start of list. break; } } if (sm == null && path.exists()) { sm = new SourceModel(env, path); } if (sm != null) { // At start of list for faster access sourceList.add(0, sm); } return sm; } private class SMClassListener extends JDIAdapter implements JDIListener { @Override public void classPrepare(ClassPrepareEventSet e) { ReferenceType refType = e.getReferenceType(); SourceModel sm = sourceForClass(refType); if (sm != null) { sm.addClass(refType); } } @Override public void classUnload(ClassUnloadEventSet e) { //### iterate through looking for (e.getTypeName()). //### then remove it. } }}
/*
* Copyright (c) 1998, 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.
*/
package com.sun.tools.example.debug.gui;
import java.io.*;
import java.util.*;
import com.sun.jdi.*;
import com.sun.tools.example.debug.event.*;
/**
* Manage the list of source files.
* Origin of SourceListener events.
*/
public class SourceManager {
//### TODO: The source cache should be aged, and some cap
//### put on memory consumption by source files loaded into core.
private List<SourceModel> sourceList;
private SearchPath sourcePath;
private ArrayList<SourceListener> sourceListeners = new ArrayList<SourceListener>();
private Map<ReferenceType, SourceModel> classToSource = new HashMap<ReferenceType, SourceModel>();
private Environment env;
/**
* Hold on to it so it can be removed.
*/
private SMClassListener classListener = new SMClassListener();
public SourceManager(Environment env) {
this(env, new SearchPath(""));
}
public SourceManager(Environment env, SearchPath sourcePath) {
this.env = env;
this.sourceList = new LinkedList<SourceModel>();
this.sourcePath = sourcePath;
env.getExecutionManager().addJDIListener(classListener);
}
/**
* Set path for access to source code.
*/
public void setSourcePath(SearchPath sp) {
sourcePath = sp;
// Old cached sources are now invalid.
sourceList = new LinkedList<SourceModel>();
notifySourcepathChanged();
classToSource = new HashMap<ReferenceType, SourceModel>();
}
public void addSourceListener(SourceListener l) {
sourceListeners.add(l);
}
public void removeSourceListener(SourceListener l) {
sourceListeners.remove(l);
}
private void notifySourcepathChanged() {
ArrayList<SourceListener> l = new ArrayList<SourceListener>(sourceListeners);
SourcepathChangedEvent evt = new SourcepathChangedEvent(this);
for (int i = 0; i < l.size(); i++) {
l.get(i).sourcepathChanged(evt);
}
}
/**
* Get path for access to source code.
*/
public SearchPath getSourcePath() {
return sourcePath;
}
/**
* Get source object associated with a Location.
*/
public SourceModel sourceForLocation(Location loc) {
return sourceForClass(loc.declaringType());
}
/**
* Get source object associated with a class or interface.
* Returns null if not available.
*/
public SourceModel sourceForClass(ReferenceType refType) {
SourceModel sm = classToSource.get(refType);
if (sm != null) {
return sm;
}
try {
String filename = refType.sourceName();
String refName = refType.name();
int iDot = refName.lastIndexOf('.');
String pkgName = (iDot >= 0)? refName.substring(0, iDot+1) : "";
String full = pkgName.replace('.', File.separatorChar) + filename;
File path = sourcePath.resolve(full);
if (path != null) {
sm = sourceForFile(path);
classToSource.put(refType, sm);
return sm;
}
return null;
} catch (AbsentInformationException e) {
return null;
}
}
/**
* Get source object associated with an absolute file path.
*/
//### Use hash table for this?
public SourceModel sourceForFile(File path) {
Iterator<SourceModel> iter = sourceList.iterator();
SourceModel sm = null;
while (iter.hasNext()) {
SourceModel candidate = iter.next();
if (candidate.fileName().equals(path)) {
sm = candidate;
iter.remove(); // Will move to start of list.
break;
}
}
if (sm == null && path.exists()) {
sm = new SourceModel(env, path);
}
if (sm != null) {
// At start of list for faster access
sourceList.add(0, sm);
}
return sm;
}
private class SMClassListener extends JDIAdapter
implements JDIListener {
@Override
public void classPrepare(ClassPrepareEventSet e) {
ReferenceType refType = e.getReferenceType();
SourceModel sm = sourceForClass(refType);
if (sm != null) {
sm.addClass(refType);
}
}
@Override
public void classUnload(ClassUnloadEventSet e) {
//### iterate through looking for (e.getTypeName()).
//### then remove it.
}
}
}