| /* |
| * Copyright (c) 1999, 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.bdi; |
| |
| import java.util.*; |
| |
| import com.sun.jdi.*; |
| import com.sun.jdi.request.EventRequest; |
| |
| abstract public class EventRequestSpec { |
| |
| static final int STATUS_UNRESOLVED = 1; |
| static final int STATUS_RESOLVED = 2; |
| static final int STATUS_ERROR = 3; |
| |
| static final Object specPropertyKey = "spec"; |
| |
| final EventRequestSpecList specs; |
| final ReferenceTypeSpec refSpec; |
| EventRequest request = null; |
| |
| int status = STATUS_UNRESOLVED; |
| |
| EventRequestSpec(EventRequestSpecList specs, ReferenceTypeSpec refSpec) { |
| this.specs = specs; |
| this.refSpec = refSpec; |
| } |
| |
| void setRequest(EventRequest request) { |
| this.request = request; |
| request.putProperty(specPropertyKey, this); |
| request.enable(); |
| } |
| |
| /** |
| * The 'refType' is known to match. |
| */ |
| abstract void resolve(ReferenceType refType) throws Exception; |
| |
| abstract void notifySet(SpecListener listener, SpecEvent evt); |
| abstract void notifyDeferred(SpecListener listener, SpecEvent evt); |
| abstract void notifyResolved(SpecListener listener, SpecEvent evt); |
| abstract void notifyDeleted(SpecListener listener, SpecEvent evt); |
| abstract void notifyError(SpecListener listener, SpecErrorEvent evt); |
| |
| /** |
| * The 'refType' is known to match. |
| */ |
| void resolveNotify(ReferenceType refType) { |
| try { |
| resolve(refType); |
| status = STATUS_RESOLVED; |
| specs.notifyResolved(this); |
| } catch(Exception exc) { |
| status = STATUS_ERROR; |
| specs.notifyError(this, exc); |
| } |
| } |
| |
| /** |
| * See if 'refType' matches and resolve. |
| */ |
| void attemptResolve(ReferenceType refType) { |
| if (!isResolved() && refSpec.matches(refType)) { |
| resolveNotify(refType); |
| } |
| } |
| |
| void attemptImmediateResolve(VirtualMachine vm) { |
| // try to resolve immediately |
| for (ReferenceType refType : vm.allClasses()) { |
| if (refSpec.matches(refType)) { |
| try { |
| resolve(refType); |
| status = STATUS_RESOLVED; |
| specs.notifySet(this); |
| } catch(Exception exc) { |
| status = STATUS_ERROR; |
| specs.notifyError(this, exc); |
| } |
| return; |
| } |
| } |
| specs.notifyDeferred(this); |
| } |
| |
| public EventRequest getEventRequest() { |
| return request; |
| } |
| |
| /** |
| * @return true if this spec has been resolved. |
| */ |
| public boolean isResolved() { |
| return status == STATUS_RESOLVED; |
| } |
| |
| /** |
| * @return true if this spec has not yet been resolved. |
| */ |
| public boolean isUnresolved() { |
| return status == STATUS_UNRESOLVED; |
| } |
| |
| /** |
| * @return true if this spec is unresolvable due to error. |
| */ |
| public boolean isErroneous() { |
| return status == STATUS_ERROR; |
| } |
| |
| public String getStatusString() { |
| switch (status) { |
| case STATUS_RESOLVED: |
| return "resolved"; |
| case STATUS_UNRESOLVED: |
| return "deferred"; |
| case STATUS_ERROR: |
| return "erroneous"; |
| } |
| return "unknown"; |
| } |
| |
| boolean isJavaIdentifier(String s) { |
| return Utils.isJavaIdentifier(s); |
| } |
| |
| public String errorMessageFor(Exception e) { |
| if (e instanceof IllegalArgumentException) { |
| return ("Invalid command syntax"); |
| } else if (e instanceof RuntimeException) { |
| // A runtime exception that we were not expecting |
| throw (RuntimeException)e; |
| } else { |
| return ("Internal error; unable to set" + this); |
| } |
| } |
| } |