platform/lang-impl/src/com/intellij/execution/impl/DisposedPsiManagerCheck.java

   1 /*
   2  * Copyright 2000-2009 JetBrains s.r.o.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package com.intellij.execution.impl;
  18
  19 import com.intellij.openapi.diagnostic.Logger;
  20 import com.intellij.openapi.project.Project;
  21 import com.intellij.openapi.util.text.StringUtil;
  22 import com.intellij.psi.PsiManager;
  23 import org.jetbrains.annotations.NonNls;
  24
  25 public class DisposedPsiManagerCheck {
  26   private static final Logger LOG = Logger.getInstance("#com.intellij.execution.impl.DisposedPsiManagerCheck");
  27   private final Throwable myAllocationPlace;
  28   private final Project myProject;
  29
  30   public DisposedPsiManagerCheck(final Project project) {
  31     myProject = project;
  32     myAllocationPlace = new Throwable();
  33   }
  34
  35   public void performCheck() {
  36     final PsiManager psiManager = PsiManager.getInstance(myProject);
  37     if (psiManager == null)
  38       log("Is null");
  39     else if (psiManager.isDisposed())
  40       log("Disposed");
  41   }
  42
  43   private void log(@NonNls final String message) {
  44     LOG.error(message + "\n" + StringUtil.getThrowableText(myAllocationPlace));
  45   }
  46 }