[vcs-log] toString for filters and log filtering time

platform/vcs-log/impl/src/com/intellij/vcs/log/VcsLogRootFilterImpl.java

@@ -32,4 +32,9 @@ public class VcsLogRootFilterImpl implements VcsLogRootFilter {
   public Collection<VirtualFile> getRoots() {
     return myRoots;
   }
+
+  @Override
+  public String toString() {
+    return "roots:" + myRoots;
+  }
 }

platform/vcs-log/impl/src/com/intellij/vcs/log/data/VcsLogDateFilterImpl.java

@@ -57,4 +57,10 @@ public class VcsLogDateFilterImpl implements VcsLogDateFilter, VcsLogDetailsFilt
   public Date getBefore() {
     return myBefore;
   }
+
+  @Override
+  public String toString() {
+    return (myAfter != null ? "after " + myAfter + (myBefore != null ? " " : "") : "") +
+           (myBefore != null ? "before " + myBefore : "");
+  }
 }

platform/vcs-log/impl/src/com/intellij/vcs/log/data/VcsLogStructureFilterImpl.java

@@ -77,4 +77,9 @@ public class VcsLogStructureFilterImpl implements VcsLogDetailsFilter, VcsLogStr
       }
     }) != null;
   }
+
+  @Override
+  public String toString() {
+    return "files:" + myFiles;
+  }
 }

platform/vcs-log/impl/src/com/intellij/vcs/log/data/VisiblePackBuilder.java

@@ -32,6 +32,7 @@ import com.intellij.vcs.log.graph.VisibleGraph;
 import com.intellij.vcs.log.impl.VcsLogFilterCollectionImpl;
 import com.intellij.vcs.log.impl.VcsLogHashFilterImpl;
 import com.intellij.vcs.log.impl.VcsLogUtil;
+import com.intellij.vcs.log.util.StopWatch;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -64,6 +65,8 @@ class VisiblePackBuilder {
                                             @NotNull PermanentGraph.SortType sortType,
                                             @NotNull VcsLogFilterCollection filters,
                                             @NotNull CommitCountStage commitCount) {
+    long start = System.currentTimeMillis();
+
     VcsLogHashFilter hashFilter = filters.getHashFilter();
     if (hashFilter != null && !hashFilter.getHashes().isEmpty()) { // hashes should be shown, no matter if they match other filters or not
       return Pair.create(applyHashFilter(dataPack, hashFilter.getHashes(), sortType), commitCount);
@@ -81,6 +84,9 @@ class VisiblePackBuilder {
     else {
       visibleGraph = dataPack.getPermanentGraph().createVisibleGraph(sortType, matchingHeads, filterResult.matchingCommits);
     }
+
+    LOG.debug(StopWatch.formatTime(System.currentTimeMillis() - start) + " for filtering by " + filters);
+
     return Pair.create(new VisiblePack(dataPack, visibleGraph, filterResult.canRequestMore, filters), filterResult.commitCount);
   }
 

platform/vcs-log/impl/src/com/intellij/vcs/log/impl/VcsLogFilterCollectionImpl.java

@@ -103,4 +103,16 @@ public class VcsLogFilterCollectionImpl implements VcsLogFilterCollection {
   public List<VcsLogDetailsFilter> getDetailsFilters() {
     return ContainerUtil.skipNulls(Arrays.asList(myUserFilter, myDateFilter, myTextFilter, myStructureFilter));
   }
+
+  @Override
+  public String toString() {
+    return "filters: (" +
+           (myBranchFilter != null ? myBranchFilter + ", " : "") +
+           (myUserFilter != null ? myUserFilter + ", " : "") +
+           (myHashFilter != null ? myHashFilter + ", " : "") +
+           (myDateFilter != null ? myDateFilter + ", " : "") +
+           (myTextFilter != null ? myTextFilter + ", " : "") +
+           (myStructureFilter != null ? myStructureFilter + ", " : "") +
+           (myRootFilter != null ? myRootFilter : "") + ")";
+  }
 }

platform/vcs-log/impl/src/com/intellij/vcs/log/impl/VcsLogHashFilterImpl.java

@@ -33,4 +33,9 @@ public class VcsLogHashFilterImpl implements VcsLogHashFilter {
   public Collection<String> getHashes() {
     return myHashes;
   }
+
+  @Override
+  public String toString() {
+    return "hashes:" + myHashes;
+  }
 }

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/filter/VcsLogTextFilterImpl.java

@@ -38,4 +38,9 @@ public class VcsLogTextFilterImpl implements VcsLogDetailsFilter, VcsLogTextFilt
   public String getText() {
     return myText;
   }
+
+  @Override
+  public String toString() {
+    return "containing " + myText;
+  }
 }

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/filter/VcsLogUserFilterImpl.java

@@ -1,6 +1,7 @@
 package com.intellij.vcs.log.ui.filter;
 
 import com.intellij.openapi.diagnostic.Logger;
+import com.intellij.openapi.util.text.StringUtil;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.util.containers.ContainerUtil;
 import com.intellij.util.containers.MultiMap;
@@ -120,4 +121,9 @@ public class VcsLogUserFilterImpl implements VcsLogUserFilter {
 
     return result;
   }
+
+  @Override
+  public String toString() {
+    return "author: " + StringUtil.join(myUsers, ", ");
+  }
 }