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/*
* Copyright (C) 2012-2014 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.core.debug;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.WeakHashMap;
import org.eclipse.jdt.internal.compiler.ast.CompilationUnitDeclaration;
public class DebugSnapshotStore {
public static final DebugSnapshotStore INSTANCE = new DebugSnapshotStore();
public static final boolean GLOBAL_DSS_DISABLE_SWITCH = true;
// All access should synchronize on the map
private final Map> map =
new WeakHashMap>();
public void snapshot(CompilationUnitDeclaration owner, String message, Object... params) {
if (GLOBAL_DSS_DISABLE_SWITCH) return;
DebugSnapshot snapshot = new DebugSnapshot(owner, 1, message, params);
List list;
synchronized (map) {
list = map.get(owner);
if (list == null) {
list = new ArrayList();
map.put(owner, list);
list.add(snapshot);
} else if (!list.isEmpty()) {
list.add(snapshot);
} else {
// An empty list is an indicator that we no longer care about that particular CUD.
}
}
}
public void log(CompilationUnitDeclaration owner, String message, Object... params) {
if (GLOBAL_DSS_DISABLE_SWITCH) return;
DebugSnapshot snapshot = new DebugSnapshot(owner, -1, message, params);
List list;
synchronized (map) {
list = map.get(owner);
if (list == null) {
list = new ArrayList();
map.put(owner, list);
list.add(snapshot);
} else if (!list.isEmpty()) {
list.add(snapshot);
} else {
// An empty list is an indicator that we no longer care about that particular CUD.
}
}
}
public String print(CompilationUnitDeclaration owner, String message, Object... params) {
if (GLOBAL_DSS_DISABLE_SWITCH) return null;
List list;
synchronized (map) {
snapshot(owner, message == null ? "Printing" : message, params);
list = new ArrayList();
list.addAll(map.get(owner));
if (list.isEmpty()) return null; // An empty list is an indicator that we no longer care about that particular CUD.
map.get(owner).clear();
}
Collections.sort(list);
int idx = 1;
StringBuilder out = new StringBuilder();
out.append("---------------------------\n");
for (DebugSnapshot snapshot : list) {
out.append(String.format("%3d: %s\n", idx++, snapshot.shortToString()));
}
out.append("******\n");
idx = 1;
for (DebugSnapshot snapshot : list) {
out.append(String.format("%3d: %s", idx++, snapshot.toString()));
}
try {
File logFile = new File(System.getProperty("user.home", "."), String.format("lombokdss-%d.err", System.currentTimeMillis()));
OutputStream stream = new FileOutputStream(logFile);
try {
stream.write(out.toString().getBytes("UTF-8"));
} finally {
stream.close();
}
return logFile.getAbsolutePath();
} catch (Exception e) {
System.err.println(out);
return "(can't write log file - emitted to system err)";
}
}
}