@NotNull
public static char[] adaptiveLoadText(@NotNull Reader reader) throws IOException {
char[] chars = new char[4096];
List<char[]> buffers = null;
int count = 0;
int total = 0;
while (true) {
int n = reader.read(chars, count, chars.length - count);
if (n <= 0) break;
count += n;
if (total > 1024 * 1024 * 10) throw new FileTooBigException("File too big " + reader);
total += n;
if (count == chars.length) {
if (buffers == null) {
buffers = new ArrayList<char[]>();
}
buffers.add(chars);
int newLength = Math.min(1024 * 1024, chars.length * 2);
chars = new char[newLength];
count = 0;
}
}
char[] result = new char[total];
if (buffers != null) {
for (char[] buffer : buffers) {
System.arraycopy(buffer, 0, result, result.length - total, buffer.length);
total -= buffer.length;
}
}
System.arraycopy(chars, 0, result, result.length - total, total);
return result;
}
@NotNull
public static byte[] adaptiveLoadBytes(@NotNull InputStream stream) throws IOException {
byte[] bytes = new byte[4096];
List<byte[]> buffers = null;
int count = 0;
int total = 0;
while (true) {
int n = stream.read(bytes, count, bytes.length - count);
if (n <= 0) break;
count += n;
if (total > 1024 * 1024 * 10) throw new FileTooBigException("File too big " + stream);
total += n;
if (count == bytes.length) {
if (buffers == null) {
buffers = new ArrayList<byte[]>();
}
buffers.add(bytes);
int newLength = Math.min(1024 * 1024, bytes.length * 2);
bytes = new byte[newLength];
count = 0;
}
}
byte[] result = new byte[total];
if (buffers != null) {
for (byte[] buffer : buffers) {
System.arraycopy(buffer, 0, result, result.length - total, buffer.length);
total -= buffer.length;
}
}
System.arraycopy(bytes, 0, result, result.length - total, total);
return result;
}
public static void initOffsets(final PsiFile file, final OffsetMap offsetMap) {
int offset =
Math.max(
offsetMap.getOffset(CompletionInitializationContext.SELECTION_END_OFFSET),
offsetMap.getOffset(CompletionInitializationContext.IDENTIFIER_END_OFFSET));
PsiElement element = file.findElementAt(offset);
if (element instanceof PsiWhiteSpace
&& (!element.textContains('\n')
|| CodeStyleSettingsManager.getSettings(file.getProject())
.getCommonSettings(JavaLanguage.INSTANCE)
.METHOD_PARAMETERS_LPAREN_ON_NEXT_LINE)) {
element = file.findElementAt(element.getTextRange().getEndOffset());
}
if (element == null) return;
if (LEFT_PAREN.accepts(element)) {
offsetMap.addOffset(LPAREN_OFFSET, element.getTextRange().getStartOffset());
PsiElement list = element.getParent();
PsiElement last = list.getLastChild();
if (last instanceof PsiJavaToken
&& ((PsiJavaToken) last).getTokenType() == JavaTokenType.RPARENTH) {
offsetMap.addOffset(RPAREN_OFFSET, last.getTextRange().getStartOffset());
}
offsetMap.addOffset(ARG_LIST_END_OFFSET, list.getTextRange().getEndOffset());
}
}
private int getNamesMaxLength() {
int len = 0;
for (ParameterTableModelItemBase<ParameterInfoImpl> item : myParametersTableModel.getItems()) {
final String text = item.parameter.getName();
len = Math.max(len, text == null ? 0 : text.length());
}
return len;
}
private int getTypesMaxLength() {
int len = 0;
for (ParameterTableModelItemBase<ParameterInfoImpl> item : myParametersTableModel.getItems()) {
final String text = item.typeCodeFragment == null ? null : item.typeCodeFragment.getText();
len = Math.max(len, text == null ? 0 : text.length());
}
return len;
}
public static void copy(
@NotNull InputStream inputStream, int maxSize, @NotNull OutputStream outputStream)
throws IOException {
final byte[] buffer = BUFFER.get();
int toRead = maxSize;
while (toRead > 0) {
int read = inputStream.read(buffer, 0, Math.min(buffer.length, toRead));
if (read < 0) break;
toRead -= read;
outputStream.write(buffer, 0, read);
}
}
@NotNull
public static byte[] loadFirst(@NotNull InputStream stream, int maxLength) throws IOException {
ByteArrayOutputStream buffer = new ByteArrayOutputStream();
final byte[] bytes = BUFFER.get();
while (maxLength > 0) {
int n = stream.read(bytes, 0, Math.min(maxLength, bytes.length));
if (n <= 0) break;
buffer.write(bytes, 0, n);
maxLength -= n;
}
buffer.close();
return buffer.toByteArray();
}
private void performRemove() {
final int selectedRow = myInjectionsTable.getSelectedRow();
if (selectedRow < 0) return;
final List<InjInfo> selected = getSelectedInjections();
for (InjInfo info : selected) {
if (info.bundled) continue;
info.cfgInfo.injectionInfos.remove(info);
}
myInjectionsTable.getListTableModel().setItems(getInjInfoList(myInfos));
final int index =
Math.min(myInjectionsTable.getListTableModel().getRowCount() - 1, selectedRow);
myInjectionsTable.getSelectionModel().setSelectionInterval(index, index);
TableUtil.scrollSelectionToVisible(myInjectionsTable);
updateCountLabel();
}
private static String printCommits(List<VcsCommitMetadata> commits) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < Math.min(commits.size(), 100); i++) {
GraphCommit<Hash> commit = commits.get(i);
sb.append(
String.format(
"%s -> %s\n",
commit.getId().toShortString(),
StringUtil.join(
commit.getParents(),
new Function<Hash, String>() {
@Override
public String fun(Hash hash) {
return hash.toShortString();
}
},
", ")));
}
return sb.toString();
}
@NotNull
@Override
public DetailedLogData readFirstBlock(
@NotNull VirtualFile root, @NotNull Requirements requirements) throws VcsException {
if (!isRepositoryReady(root)) {
return LogDataImpl.empty();
}
GitRepository repository =
ObjectUtils.assertNotNull(myRepositoryManager.getRepositoryForRoot(root));
// need to query more to sort them manually; this doesn't affect performance: it is equal for
// -1000 and -2000
int commitCount = requirements.getCommitCount() * 2;
String[] params =
new String[] {"HEAD", "--branches", "--remotes", "--max-count=" + commitCount};
// NB: not specifying --tags, because it introduces great slowdown if there are many tags,
// but makes sense only if there are heads without branch or HEAD labels (rare case). Such cases
// are partially handled below.
boolean refresh =
requirements instanceof VcsLogProviderRequirementsEx
&& ((VcsLogProviderRequirementsEx) requirements).isRefresh();
DetailedLogData data = GitHistoryUtils.loadMetadata(myProject, root, true, params);
Set<VcsRef> safeRefs = data.getRefs();
Set<VcsRef> allRefs = new OpenTHashSet<VcsRef>(safeRefs, DONT_CONSIDER_SHA);
Set<VcsRef> branches = readBranches(repository);
addNewElements(allRefs, branches);
Collection<VcsCommitMetadata> allDetails;
Set<String> currentTagNames = null;
DetailedLogData commitsFromTags = null;
if (!refresh) {
allDetails = data.getCommits();
} else {
// on refresh: get new tags, which point to commits not from the first block; then get
// history, walking down just from these tags
// on init: just ignore such tagged-only branches. The price for speed-up.
VcsLogProviderRequirementsEx rex = (VcsLogProviderRequirementsEx) requirements;
currentTagNames = readCurrentTagNames(root);
addOldStillExistingTags(allRefs, currentTagNames, rex.getPreviousRefs());
allDetails = newHashSet(data.getCommits());
Set<String> previousTags =
newHashSet(ContainerUtil.mapNotNull(rex.getPreviousRefs(), GET_TAG_NAME));
Set<String> safeTags = newHashSet(ContainerUtil.mapNotNull(safeRefs, GET_TAG_NAME));
Set<String> newUnmatchedTags = remove(currentTagNames, previousTags, safeTags);
if (!newUnmatchedTags.isEmpty()) {
commitsFromTags = loadSomeCommitsOnTaggedBranches(root, commitCount, newUnmatchedTags);
addNewElements(allDetails, commitsFromTags.getCommits());
addNewElements(allRefs, commitsFromTags.getRefs());
}
}
StopWatch sw = StopWatch.start("sorting commits in " + root.getName());
List<VcsCommitMetadata> sortedCommits = VcsLogSorter.sortByDateTopoOrder(allDetails);
sortedCommits =
sortedCommits.subList(0, Math.min(sortedCommits.size(), requirements.getCommitCount()));
sw.report();
if (LOG.isDebugEnabled()) {
validateDataAndReportError(
root, allRefs, sortedCommits, data, branches, currentTagNames, commitsFromTags);
}
return new LogDataImpl(allRefs, sortedCommits);
}
