SpringLoadedPositionManagerFactory.java

/*
 * Copyright 2000-2014 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jetbrains.plugins.groovy.springloaded;

import com.intellij.debugger.PositionManager;
import com.intellij.debugger.PositionManagerFactory;
import com.intellij.debugger.engine.DebugProcess;
import com.intellij.debugger.engine.jdi.VirtualMachineProxy;
import com.intellij.openapi.application.AccessToken;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.util.Key;
import com.intellij.psi.JavaPsiFacade;
import org.jetbrains.annotations.NotNull;

/**
 * Factory for position manager to debug classes reloaded by com.springsource.springloaded
 *
 * @author Sergey Evdokimov
 */
public class SpringLoadedPositionManagerFactory extends PositionManagerFactory {

  public static final Key<Boolean> FORCE_SPRINGLOADED = Key.create("springloaded.debugger.force");

  @Override
  public PositionManager createPositionManager(@NotNull final DebugProcess process) {
    return usesSpringLoaded(process) ? new SpringLoadedPositionManager(process) : null;
  }

  private static boolean usesSpringLoaded(@NotNull final DebugProcess process) {
    Boolean force = process.getProcessHandler().getUserData(FORCE_SPRINGLOADED);
    if (force == Boolean.TRUE) return true;

    try (AccessToken ignored = ApplicationManager.getApplication().acquireReadActionLock()) {
      JavaPsiFacade facade = JavaPsiFacade.getInstance(process.getProject());
      if (facade.findPackage("com.springsource.loaded") != null ||
          facade.findPackage("org.springsource.loaded") != null) {
        return true;
      }
    }

    // Check spring loaded for remote process
    VirtualMachineProxy proxy = process.getVirtualMachineProxy();
    return !proxy.classesByName("com.springsource.loaded.agent.SpringLoadedAgent").isEmpty() ||
           !proxy.classesByName("org.springsource.loaded.agent.SpringLoadedAgent").isEmpty();
  }
}