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/*
* Copyright 2000-2009 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 com.intellij.debugger.engine;
import com.intellij.debugger.NoDataException;
import com.intellij.debugger.PositionManager;
import com.intellij.debugger.SourcePosition;
import com.intellij.debugger.engine.evaluation.EvaluationContext;
import com.intellij.debugger.jdi.StackFrameProxyImpl;
import com.intellij.debugger.requests.ClassPrepareRequestor;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.util.ThreeState;
import com.intellij.xdebugger.frame.XStackFrame;
import com.sun.jdi.Location;
import com.sun.jdi.ReferenceType;
import com.sun.jdi.VMDisconnectedException;
import com.sun.jdi.request.ClassPrepareRequest;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class CompoundPositionManager extends PositionManagerEx {
private static final Logger LOG = Logger.getInstance(CompoundPositionManager.class);
private final ArrayList<PositionManager> myPositionManagers = new ArrayList<PositionManager>();
@SuppressWarnings("UnusedDeclaration")
public CompoundPositionManager() {
}
public CompoundPositionManager(PositionManager manager) {
appendPositionManager(manager);
}
public void appendPositionManager(PositionManager manager) {
myPositionManagers.remove(manager);
myPositionManagers.add(0, manager);
}
@Override
public SourcePosition getSourcePosition(Location location) {
for (PositionManager positionManager : myPositionManagers) {
try {
return positionManager.getSourcePosition(location);
}
catch (NoDataException ignored) {
}
catch (VMDisconnectedException e) {
throw e;
}
catch (Exception e) {
LOG.error(e);
}
catch (AssertionError e) {
LOG.error(e);
}
}
return null;
}
@Override
@NotNull
public List<ReferenceType> getAllClasses(@NotNull SourcePosition classPosition) {
for (PositionManager positionManager : myPositionManagers) {
try {
return positionManager.getAllClasses(classPosition);
}
catch (NoDataException ignored) {
}
catch (VMDisconnectedException e) {
throw e;
}
catch (Exception e) {
LOG.error(e);
}
catch (AssertionError e) {
LOG.error(e);
}
}
return Collections.emptyList();
}
@Override
@NotNull
public List<Location> locationsOfLine(@NotNull ReferenceType type, @NotNull SourcePosition position) {
for (PositionManager positionManager : myPositionManagers) {
try {
return positionManager.locationsOfLine(type, position);
}
catch (NoDataException ignored) {
}
catch (VMDisconnectedException e) {
throw e;
}
catch (Exception e) {
LOG.error(e);
}
catch (AssertionError e) {
LOG.error(e);
}
}
return Collections.emptyList();
}
@Override
public ClassPrepareRequest createPrepareRequest(@NotNull ClassPrepareRequestor requestor, @NotNull SourcePosition position) {
for (PositionManager positionManager : myPositionManagers) {
try {
return positionManager.createPrepareRequest(requestor, position);
}
catch (NoDataException ignored) {
}
catch (VMDisconnectedException e) {
throw e;
}
catch (Exception e) {
LOG.error(e);
}
catch (AssertionError e) {
LOG.error(e);
}
}
return null;
}
@Nullable
@Override
public XStackFrame createStackFrame(@NotNull StackFrameProxyImpl frame, @NotNull DebugProcessImpl debugProcess, @NotNull Location location) {
for (PositionManager positionManager : myPositionManagers) {
if (positionManager instanceof PositionManagerEx) {
try {
XStackFrame xStackFrame = ((PositionManagerEx)positionManager).createStackFrame(frame, debugProcess, location);
if (xStackFrame != null) {
return xStackFrame;
}
}
catch (Throwable e) {
LOG.error(e);
}
}
}
return null;
}
@Override
public ThreeState evaluateCondition(@NotNull EvaluationContext context,
@NotNull StackFrameProxyImpl frame,
@NotNull Location location,
@NotNull String expression) {
for (PositionManager positionManager : myPositionManagers) {
if (positionManager instanceof PositionManagerEx) {
try {
ThreeState result = ((PositionManagerEx)positionManager).evaluateCondition(context, frame, location, expression);
if (result != ThreeState.UNSURE) {
return result;
}
}
catch (Throwable e) {
LOG.error(e);
}
}
}
return ThreeState.UNSURE;
}
}
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