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don't evalute all usage target descriptions when adding to history (EA-64966 - INRE: FileBasedIndexImpl.handleDumbMode)

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peter
2015-06-25 17:40:23 +02:00
parent d7270295f1
commit 1191e9bee8
1 changed files with 30 additions and 22 deletions
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platform/lang-impl/src/com/intellij/find/findUsages/UsageHistory.java
+30 -22
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@@ -15,44 +15,52 @@
*/
package com.intellij.find.findUsages;
import com.intellij.openapi.util.Condition;
import com.intellij.usages.ConfigurableUsageTarget;
import com.intellij.util.containers.ContainerUtil;
import com.intellij.util.containers.hash.EqualityPolicy;
import com.intellij.util.containers.hash.LinkedHashMap;
import org.jetbrains.annotations.NotNull;
import java.util.Collections;
import java.util.List;
import java.util.*;
public class UsageHistory {
// the last element is the most recent
private final List<ConfigurableUsageTarget> myHistory = ContainerUtil.createLockFreeCopyOnWriteList();
@SuppressWarnings("unchecked")
private final Map<ConfigurableUsageTarget, String> myHistory = new LinkedHashMap<ConfigurableUsageTarget, String>((EqualityPolicy<ConfigurableUsageTarget>)EqualityPolicy.IDENTITY) {
@Override
protected boolean removeEldestEntry(Map.Entry<ConfigurableUsageTarget, String> eldest) {
// todo configure history depth limit
return size() > 15;
}
};
public void add(@NotNull ConfigurableUsageTarget usageTarget) {
final String descriptiveName = usageTarget.getLongDescriptiveName();
ContainerUtil.retainAll(myHistory, new Condition<ConfigurableUsageTarget>() {
@Override
public boolean value(ConfigurableUsageTarget existing) {
return !existing.getLongDescriptiveName().equals(descriptiveName);
synchronized (myHistory) {
final Set<Map.Entry<ConfigurableUsageTarget, String>> entries = myHistory.entrySet();
for (Iterator<Map.Entry<ConfigurableUsageTarget, String>> iterator = entries.iterator(); iterator.hasNext(); ) {
if (iterator.next().getValue().equals(descriptiveName)) {
iterator.remove();
}
}
});
myHistory.add(usageTarget);
// todo configure history depth limit
if (myHistory.size() > 15) {
myHistory.remove(0);
myHistory.put(usageTarget, descriptiveName);
}
}
@NotNull
public List<ConfigurableUsageTarget> getAll() {
removeInvalidElementsFromHistory();
return Collections.unmodifiableList(myHistory);
}
private void removeInvalidElementsFromHistory() {
for (ConfigurableUsageTarget target : myHistory) {
if (!target.isValid()) myHistory.remove(target);
synchronized (myHistory) {
List<ConfigurableUsageTarget> result = ContainerUtil.newArrayList();
final Set<ConfigurableUsageTarget> entries = myHistory.keySet();
for (Iterator<ConfigurableUsageTarget> iterator = entries.iterator(); iterator.hasNext(); ) {
final ConfigurableUsageTarget target = iterator.next();
if (!target.isValid()) {
iterator.remove();
} else {
result.add(target);
}
}
return result;
}
}
}