/* (non-Javadoc)
* @see org.xtreemfs.babudb.api.dev.SnapshotManagerInternal#shutdown()
*/
@Override
public void shutdown() throws BabuDBException {
for (Map<String, Snapshot> snapshots : snapshotDBs.values())
for (Snapshot snapshot : snapshots.values()) snapshot.shutdown();
Logging.logMessage(
Logging.LEVEL_DEBUG, Category.babudb, this, "snapshot manager shut down successfully");
}
@Test
public void calculatesAStdDevOfZeroForAnEmptySnapshot() throws Exception {
final Snapshot emptySnapshot =
new WeightedSnapshot(WeightedArray(new long[] {}, new double[] {}));
assertThat(emptySnapshot.getStdDev()).isZero();
}
@Test
public void calculatesAStdDevOfZeroForASingletonSnapshot() throws Exception {
final Snapshot singleItemSnapshot =
new WeightedSnapshot(WeightedArray(new long[] {1}, new double[] {1.0}));
assertThat(singleItemSnapshot.getStdDev()).isZero();
}
/*.................................................................................................................*/
public Snapshot getSnapshot(MesquiteFile file) {
Snapshot temp = new Snapshot();
temp.addLine(
"setColor "
+ ColorDistribution.getStandardColorName(
ColorDistribution.getStandardColor((int) currentColor)));
temp.addLine("removeColor " + removeColor.toOffOnString());
return temp;
}
@Test
public void canExtractSnapshotFromEntityManager()
throws SQLException, DatabaseUnitException, IOException {
createEntityManager();
populateDataBase("backup.dbunit.xml");
Snapshot snapshot = Snapshot.create();
assertNotNull(snapshot.getCaptureDate());
System.out.println(snapshot);
}
@Test
public void canValidateBackUp() {
Snapshot backUp = Fixture.createSnapshot();
assertValid(backUp);
// make member first name invalid.
backUp.getMembers().get(3).setFirstName("");
assertInvalid(backUp, "members[3].firstName");
}
@Test
public void worksWithOverestimatedCollections() throws Exception {
final List<WeightedSample> items =
spy(WeightedArray(new long[] {5, 1, 2, 3, 4}, new double[] {1, 2, 3, 2, 2}));
when(items.size()).thenReturn(6, 5);
final Snapshot other = new WeightedSnapshot(items);
assertThat(other.getValues()).containsOnly(1, 2, 3, 4, 5);
}
@Test
public void canPopulateEntityManagerFromSnapshot() throws Exception {
EntityManager manager = createEntityManager();
Snapshot source = Fixture.createSnapshot();
manager.getTransaction().begin();
source.persistTo(manager);
manager.flush();
manager.getTransaction().commit();
assertDataAsExpected("backup.dbunit.xml");
}
@Test
public void expectNoOverflowForLowWeights() throws Exception {
final Snapshot scatteredSnapshot =
new WeightedSnapshot(
WeightedArray(
new long[] {1, 2, 3},
new double[] {Double.MIN_VALUE, Double.MIN_VALUE, Double.MIN_VALUE}));
assertThat(scatteredSnapshot.getMean()).isEqualTo(2);
}
/*.................................................................................................................*/
public Snapshot getSnapshot(MesquiteFile file) {
Snapshot temp = new Snapshot();
temp.addLine("setRunningFilePath " + ParseUtil.tokenize(runningFilePath));
if (outputFilePaths != null) {
String files = " ";
for (int i = 0; i < outputFilePaths.length; i++) {
files += " " + ParseUtil.tokenize(outputFilePaths[i]);
}
temp.addLine("setOutputFilePaths " + files);
}
return temp;
}
//
// Handle a HPROF_GC_INSTANCE_DUMP
// Return number of bytes read
//
private int readInstance() throws IOException {
long start = in.position();
long id = readID();
StackTrace stackTrace = getStackTraceFromSerial(in.readInt());
long classID = readID();
int bytesFollowing = in.readInt();
int bytesRead = (2 * identifierSize) + 8 + bytesFollowing;
JavaObject jobj = new JavaObject(classID, start);
skipBytes(bytesFollowing);
snapshot.addHeapObject(id, jobj);
snapshot.setSiteTrace(jobj, stackTrace);
return bytesRead;
}
@Test
public void testToStringTest() throws Exception {
Snapshot snap = new Snapshot(field, 'b', 2, '0');
String exp1 =
"{\'status\':\'snapshot\',\'next\':\'0\',\'color\':\'b\',\'field\':[[\'black\', "
+ "\'nothing\'], [\'black\', \'white\']],\'king\':[[\'true\', \'false\'], [\'false\', \'true\']]}";
Assert.assertEquals(snap.toStringTest(), exp1);
snap = new Snapshot(field, 'w', 2, '0');
String exp2 =
"{\'status\':\'snapshot\',\'next\':\'0\',\'color\':\'w\',\'field\':[[\'black\', "
+ "\'nothing\'], [\'black\', \'white\']],\'king\':[[\'true\', \'false\'], [\'false\', \'true\']]}";
Assert.assertEquals(snap.toStringTest(), exp2);
}
@Test
public void testToString() throws Exception {
Snapshot snap = new Snapshot(field, 'b', 2, '0');
String exp1 =
"{\"status\":\"snapshot\",\"next\":\"0\",\"color\":\"b\",\"field\":[[\"black\", "
+ "\"nothing\"], [\"black\", \"white\"]],\"king\":[[\"true\", \"false\"], [\"false\", \"true\"]]}";
Assert.assertEquals(snap.toString(), exp1);
snap = new Snapshot(field, 'w', 2, '0');
String exp2 =
"{\"status\":\"snapshot\",\"next\":\"0\",\"color\":\"w\",\"field\":[[\"black\", "
+ "\"nothing\"], [\"black\", \"white\"]],\"king\":[[\"true\", \"false\"], [\"false\", \"true\"]]}";
Assert.assertEquals(snap.toString(), exp2);
}
private int getNumPorts(NodeProtoId nodeProtoId) {
if (nodeProtoId instanceof CellId) {
return snapshot.getCell((CellId) nodeProtoId).cellRevision.exports.size();
} else {
return techPool.getPrimitiveNode((PrimitiveNodeId) nodeProtoId).getNumPorts();
}
}
private PortProtoId getPortIdByIndex(NodeProtoId nodeProtoId, int portIndex) {
if (nodeProtoId instanceof CellId) {
return snapshot.getCell((CellId) nodeProtoId).cellRevision.exports.get(portIndex).exportId;
} else {
return techPool.getPrimitiveNode((PrimitiveNodeId) nodeProtoId).getPort(portIndex).getId();
}
}
@Test
public void dumpsToAStream() throws Exception {
final ByteArrayOutputStream output = new ByteArrayOutputStream();
snapshot.dump(output);
assertThat(output.toString()).isEqualTo(String.format("1%n2%n3%n4%n5%n"));
}
private void handleEOF(EOFException exp, Snapshot snapshot) {
if (debugLevel > 0) {
exp.printStackTrace();
}
warn("Unexpected EOF. Will miss information...");
// we have EOF, we have to tolerate missing references
snapshot.setUnresolvedObjectsOK(true);
}
@Test
public void usage() throws Exception {
dir = testDir("usage");
File headFile = new File(dir, "HEAD");
File pagesDir = new File(dir, "pages");
IndexCodec indexCodec = mock(IndexCodec.class);
Codec<Entry<Key, Integer>> entryCodec = mock(Codec.class);
Snapshot<Integer> snapshot = new Snapshot<Integer>(dir, indexCodec, entryCodec);
snapshot.updateAndCleanUp();
String snapshotFileName = Files.readFirstLine(headFile, Charset.defaultCharset());
assertThat(snapshotFileName, is(not("null.s")));
assertThat(new File(pagesDir, snapshotFileName).exists(), is(true));
assertThat(new File(pagesDir, "null.s").exists(), is(false));
}
/* (non-Javadoc)
* @see org.xtreemfs.babudb.api.dev.SnapshotManagerInternal#snapshotComplete(java.lang.String,
* org.xtreemfs.babudb.snapshots.SnapshotConfig)
*/
@Override
public void snapshotComplete(String dbName, SnapshotConfig snap) throws BabuDBException {
// as soon as the snapshot has been completed, replace the entry in the
// snapshot DB map with a disk index-based BabuDB instance if necessary
synchronized (snapshotDBs) {
DatabaseInternal db = dbs.getDatabaseManager().getDatabase(dbName);
boolean compressed = db.getLSMDB().getIndex(0).isCompressed();
boolean mmaped = db.getLSMDB().getIndex(0).isMMapEnabled();
Snapshot s = snapshotDBs.get(dbName).get(snap.getName());
s.setView(
new DiskIndexView(
getSnapshotDir(dbName, snap.getName()),
dbs.getDatabaseManager().getDatabase(dbName).getComparators(),
compressed,
mmaped));
}
}
public CreateVolumeResponseType CreateVolume(final CreateVolumeType request)
throws EucalyptusCloudException, AuthException {
Context ctx = Contexts.lookup();
Long volSize = request.getSize() != null ? Long.parseLong(request.getSize()) : null;
final String snapId = request.getSnapshotId();
String partition = request.getAvailabilityZone();
if ((request.getSnapshotId() == null && request.getSize() == null)) {
throw new EucalyptusCloudException("One of size or snapshotId is required as a parameter.");
}
if (snapId != null) {
try {
Transactions.find(Snapshot.named(null, snapId));
} catch (ExecutionException ex) {
throw new EucalyptusCloudException(
"Failed to create volume because the referenced snapshot id is invalid: " + snapId);
}
}
final Integer newSize = new Integer(request.getSize() != null ? request.getSize() : "-1");
Exception lastEx = null;
for (int i = 0; i < VOL_CREATE_RETRIES; i++) {
try {
final ServiceConfiguration sc =
Topology.lookup(Storage.class, Partitions.lookupByName(partition));
final UserFullName owner = ctx.getUserFullName();
Function<Long, Volume> allocator =
new Function<Long, Volume>() {
@Override
public Volume apply(Long size) {
try {
return Volumes.createStorageVolume(
sc, owner, snapId, Ints.checkedCast(size), request);
} catch (ExecutionException ex) {
throw Exceptions.toUndeclared(ex);
}
}
};
Volume newVol = RestrictedTypes.allocateMeasurableResource(newSize.longValue(), allocator);
CreateVolumeResponseType reply = request.getReply();
reply.setVolume(newVol.morph(new edu.ucsb.eucalyptus.msgs.Volume()));
return reply;
} catch (RuntimeException ex) {
LOG.error(ex, ex);
if (!(ex.getCause() instanceof ExecutionException)) {
throw ex;
} else {
lastEx = ex;
}
}
}
throw new EucalyptusCloudException(
"Failed to create volume after " + VOL_CREATE_RETRIES + " because of: " + lastEx, lastEx);
}
private int getPortIndex(PortProtoId portId) {
if (portId instanceof ExportId) {
ExportId exportId = (ExportId) portId;
return snapshot
.getCell(exportId.getParentId())
.cellRevision
.getExportIndexByExportId(exportId);
} else {
return techPool.getPrimitivePort((PrimitivePortId) portId).getPortIndex();
}
}
/**
* Method to tell whether this NodeInst is an icon of its parent. Electric does not allow
* recursive circuit hierarchies (instances of Cells inside of themselves). However, it does allow
* one exception: a schematic may contain its own icon for documentation purposes. This method
* determines whether this NodeInst is such an icon.
*
* @return true if this NodeInst is an icon of its parent.
*/
private boolean isIconOfParent(ImmutableNodeInst n) {
if (!(n.protoId instanceof CellId)) {
return false;
}
CellBackup subCell = snapshot.getCell((CellId) n.protoId);
CellId subCellId = subCell.cellRevision.d.cellId;
return subCellId.isIcon()
&& cellId.isSchematic()
&& subCellId.libId == cellId.libId
&& subCell.cellRevision.d.groupName.equals(cellRevision.d.groupName);
}
private Response getResponse(MissionInfo info) {
QueryResponse response = new QueryResponse();
Snapshot snapshot = info.getSnapshot();
response.setTime(snapshot.getTimestamp());
response.setVersion(snapshot.getVersion());
response.setMinVersion(snapshot.getMinVersion());
response.setMaxVersion(snapshot.getMaxVersion());
Report report = snapshot.getReport();
response.setRunning(info.getState().equals(LAUNCHED));
response.setReport(Arrays.asList(report.getAllMetrics()));
return response;
}
/*.................................................................................................................*/
public Snapshot getSnapshot(MesquiteFile file) {
Snapshot temp = new Snapshot();
temp.addLine("getTreeFiller ", fillerTask);
if (enableNumTreesChoice()) temp.addLine("setNumberTrees " + numTrees);
return temp;
}
@Override
public int compareTo(Snapshot o) {
return Long.compare(id, o.id());
}
@Override
public void close() {
snapshot.closeWriter(this);
buffer.close();
}
public Snapshot read() throws IOException {
currPos = 4; // 4 because of the magic number
version = readVersionHeader();
identifierSize = in.readInt();
snapshot.setIdentifierSize(identifierSize);
if (version >= VERSION_JDK12BETA4) {
snapshot.setNewStyleArrayClass(true);
} else {
snapshot.setNewStyleArrayClass(false);
}
currPos += 4;
if (identifierSize != 4 && identifierSize != 8) {
throw new IOException(
"I'm sorry, but I can't deal with an identifier size of "
+ identifierSize
+ ". I can only deal with 4 or 8.");
}
System.out.println("Dump file created " + (new Date(in.readLong())));
currPos += 8;
for (; ; ) {
int type;
try {
type = in.readUnsignedByte();
} catch (EOFException ignored) {
break;
}
in.readInt(); // Timestamp of this record
// Length of record: readInt() will return negative value for record
// length >2GB. so store 32bit value in long to keep it unsigned.
long length = in.readInt() & 0xffffffffL;
if (debugLevel > 0) {
System.out.println(
"Read record type " + type + ", length " + length + " at position " + toHex(currPos));
}
if (length < 0) {
throw new IOException(
"Bad record length of " + length + " at byte " + toHex(currPos + 5) + " of file.");
}
currPos += 9 + length;
switch (type) {
case HPROF_UTF8:
{
long id = readID();
byte[] chars = new byte[(int) length - identifierSize];
in.readFully(chars);
names.put(new Long(id), new String(chars));
break;
}
case HPROF_LOAD_CLASS:
{
int serialNo = in.readInt(); // Not used
long classID = readID();
int stackTraceSerialNo = in.readInt();
long classNameID = readID();
Long classIdI = new Long(classID);
String nm = getNameFromID(classNameID).replace('/', '.');
classNameFromObjectID.put(classIdI, nm);
if (classNameFromSerialNo != null) {
classNameFromSerialNo.put(new Integer(serialNo), nm);
}
break;
}
case HPROF_HEAP_DUMP:
{
if (dumpsToSkip <= 0) {
try {
readHeapDump(length, currPos);
} catch (EOFException exp) {
handleEOF(exp, snapshot);
}
if (debugLevel > 0) {
System.out.println(" Finished processing instances in heap dump.");
}
return snapshot;
} else {
dumpsToSkip--;
skipBytes(length);
}
break;
}
case HPROF_HEAP_DUMP_END:
{
if (version >= VERSION_JDK6) {
if (dumpsToSkip <= 0) {
skipBytes(length); // should be no-op
return snapshot;
} else {
// skip this dump (of the end record for a sequence of dump segments)
dumpsToSkip--;
}
} else {
// HPROF_HEAP_DUMP_END only recognized in >= 1.0.2
warn("Ignoring unrecognized record type " + type);
}
skipBytes(length); // should be no-op
break;
}
case HPROF_HEAP_DUMP_SEGMENT:
{
if (version >= VERSION_JDK6) {
if (dumpsToSkip <= 0) {
try {
// read the dump segment
readHeapDump(length, currPos);
} catch (EOFException exp) {
handleEOF(exp, snapshot);
}
} else {
// all segments comprising the heap dump will be skipped
skipBytes(length);
}
} else {
// HPROF_HEAP_DUMP_SEGMENT only recognized in >= 1.0.2
warn("Ignoring unrecognized record type " + type);
skipBytes(length);
}
break;
}
case HPROF_FRAME:
{
if (stackFrames == null) {
skipBytes(length);
} else {
long id = readID();
String methodName = getNameFromID(readID());
String methodSig = getNameFromID(readID());
String sourceFile = getNameFromID(readID());
int classSer = in.readInt();
String className = classNameFromSerialNo.get(new Integer(classSer));
int lineNumber = in.readInt();
if (lineNumber < StackFrame.LINE_NUMBER_NATIVE) {
warn("Weird stack frame line number: " + lineNumber);
lineNumber = StackFrame.LINE_NUMBER_UNKNOWN;
}
stackFrames.put(
new Long(id),
new StackFrame(methodName, methodSig, className, sourceFile, lineNumber));
}
break;
}
case HPROF_TRACE:
{
if (stackTraces == null) {
skipBytes(length);
} else {
int serialNo = in.readInt();
int threadSeq = in.readInt(); // Not used
StackFrame[] frames = new StackFrame[in.readInt()];
for (int i = 0; i < frames.length; i++) {
long fid = readID();
frames[i] = stackFrames.get(new Long(fid));
if (frames[i] == null) {
throw new IOException("Stack frame " + toHex(fid) + " not found");
}
}
stackTraces.put(new Integer(serialNo), new StackTrace(frames));
}
break;
}
case HPROF_UNLOAD_CLASS:
case HPROF_ALLOC_SITES:
case HPROF_START_THREAD:
case HPROF_END_THREAD:
case HPROF_HEAP_SUMMARY:
case HPROF_CPU_SAMPLES:
case HPROF_CONTROL_SETTINGS:
case HPROF_LOCKSTATS_WAIT_TIME:
case HPROF_LOCKSTATS_HOLD_TIME:
{
// Ignore these record types
skipBytes(length);
break;
}
default:
{
skipBytes(length);
warn("Ignoring unrecognized record type " + type);
}
}
}
return snapshot;
}
private void readHeapDump(long bytesLeft, long posAtEnd) throws IOException {
while (bytesLeft > 0) {
int type = in.readUnsignedByte();
if (debugLevel > 0) {
System.out.println(
" Read heap sub-record type "
+ type
+ " at position "
+ toHex(posAtEnd - bytesLeft));
}
bytesLeft--;
switch (type) {
case HPROF_GC_ROOT_UNKNOWN:
{
long id = readID();
bytesLeft -= identifierSize;
snapshot.addRoot(new Root(id, 0, Root.UNKNOWN, ""));
break;
}
case HPROF_GC_ROOT_THREAD_OBJ:
{
long id = readID();
int threadSeq = in.readInt();
int stackSeq = in.readInt();
bytesLeft -= identifierSize + 8;
threadObjects.put(new Integer(threadSeq), new ThreadObject(id, stackSeq));
break;
}
case HPROF_GC_ROOT_JNI_GLOBAL:
{
long id = readID();
long globalRefId = readID(); // Ignored, for now
bytesLeft -= 2 * identifierSize;
snapshot.addRoot(new Root(id, 0, Root.NATIVE_STATIC, ""));
break;
}
case HPROF_GC_ROOT_JNI_LOCAL:
{
long id = readID();
int threadSeq = in.readInt();
int depth = in.readInt();
bytesLeft -= identifierSize + 8;
ThreadObject to = getThreadObjectFromSequence(threadSeq);
StackTrace st = getStackTraceFromSerial(to.stackSeq);
if (st != null) {
st = st.traceForDepth(depth + 1);
}
snapshot.addRoot(new Root(id, to.threadId, Root.NATIVE_LOCAL, "", st));
break;
}
case HPROF_GC_ROOT_JAVA_FRAME:
{
long id = readID();
int threadSeq = in.readInt();
int depth = in.readInt();
bytesLeft -= identifierSize + 8;
ThreadObject to = getThreadObjectFromSequence(threadSeq);
StackTrace st = getStackTraceFromSerial(to.stackSeq);
if (st != null) {
st = st.traceForDepth(depth + 1);
}
snapshot.addRoot(new Root(id, to.threadId, Root.JAVA_LOCAL, "", st));
break;
}
case HPROF_GC_ROOT_NATIVE_STACK:
{
long id = readID();
int threadSeq = in.readInt();
bytesLeft -= identifierSize + 4;
ThreadObject to = getThreadObjectFromSequence(threadSeq);
StackTrace st = getStackTraceFromSerial(to.stackSeq);
snapshot.addRoot(new Root(id, to.threadId, Root.NATIVE_STACK, "", st));
break;
}
case HPROF_GC_ROOT_STICKY_CLASS:
{
long id = readID();
bytesLeft -= identifierSize;
snapshot.addRoot(new Root(id, 0, Root.SYSTEM_CLASS, ""));
break;
}
case HPROF_GC_ROOT_THREAD_BLOCK:
{
long id = readID();
int threadSeq = in.readInt();
bytesLeft -= identifierSize + 4;
ThreadObject to = getThreadObjectFromSequence(threadSeq);
StackTrace st = getStackTraceFromSerial(to.stackSeq);
snapshot.addRoot(new Root(id, to.threadId, Root.THREAD_BLOCK, "", st));
break;
}
case HPROF_GC_ROOT_MONITOR_USED:
{
long id = readID();
bytesLeft -= identifierSize;
snapshot.addRoot(new Root(id, 0, Root.BUSY_MONITOR, ""));
break;
}
case HPROF_GC_CLASS_DUMP:
{
int bytesRead = readClass();
bytesLeft -= bytesRead;
break;
}
case HPROF_GC_INSTANCE_DUMP:
{
int bytesRead = readInstance();
bytesLeft -= bytesRead;
break;
}
case HPROF_GC_OBJ_ARRAY_DUMP:
{
int bytesRead = readArray(false);
bytesLeft -= bytesRead;
break;
}
case HPROF_GC_PRIM_ARRAY_DUMP:
{
int bytesRead = readArray(true);
bytesLeft -= bytesRead;
break;
}
default:
{
throw new IOException("Unrecognized heap dump sub-record type: " + type);
}
}
}
if (bytesLeft != 0) {
warn(
"Error reading heap dump or heap dump segment: Byte count is "
+ bytesLeft
+ " instead of 0");
skipBytes(bytesLeft);
}
if (debugLevel > 0) {
System.out.println(" Finished heap sub-records.");
}
}
//
// Handle a HPROF_GC_OBJ_ARRAY_DUMP or HPROF_GC_PRIM_ARRAY_DUMP
// Return number of bytes read
//
private int readArray(boolean isPrimitive) throws IOException {
long start = in.position();
long id = readID();
StackTrace stackTrace = getStackTraceFromSerial(in.readInt());
int num = in.readInt();
int bytesRead = identifierSize + 8;
long elementClassID;
if (isPrimitive) {
elementClassID = in.readByte();
bytesRead++;
} else {
elementClassID = readID();
bytesRead += identifierSize;
}
// Check for primitive arrays:
byte primitiveSignature = 0x00;
int elSize = 0;
if (isPrimitive || version < VERSION_JDK12BETA4) {
switch ((int) elementClassID) {
case T_BOOLEAN:
{
primitiveSignature = (byte) 'Z';
elSize = 1;
break;
}
case T_CHAR:
{
primitiveSignature = (byte) 'C';
elSize = 2;
break;
}
case T_FLOAT:
{
primitiveSignature = (byte) 'F';
elSize = 4;
break;
}
case T_DOUBLE:
{
primitiveSignature = (byte) 'D';
elSize = 8;
break;
}
case T_BYTE:
{
primitiveSignature = (byte) 'B';
elSize = 1;
break;
}
case T_SHORT:
{
primitiveSignature = (byte) 'S';
elSize = 2;
break;
}
case T_INT:
{
primitiveSignature = (byte) 'I';
elSize = 4;
break;
}
case T_LONG:
{
primitiveSignature = (byte) 'J';
elSize = 8;
break;
}
}
if (version >= VERSION_JDK12BETA4 && primitiveSignature == 0x00) {
throw new IOException("Unrecognized typecode: " + elementClassID);
}
}
if (primitiveSignature != 0x00) {
int size = elSize * num;
bytesRead += size;
JavaValueArray va = new JavaValueArray(primitiveSignature, start);
skipBytes(size);
snapshot.addHeapObject(id, va);
snapshot.setSiteTrace(va, stackTrace);
} else {
int sz = num * identifierSize;
bytesRead += sz;
JavaObjectArray arr = new JavaObjectArray(elementClassID, start);
skipBytes(sz);
snapshot.addHeapObject(id, arr);
snapshot.setSiteTrace(arr, stackTrace);
}
return bytesRead;
}
//
// Handle a HPROF_GC_CLASS_DUMP
// Return number of bytes read
//
private int readClass() throws IOException {
long id = readID();
StackTrace stackTrace = getStackTraceFromSerial(in.readInt());
long superId = readID();
long classLoaderId = readID();
long signersId = readID();
long protDomainId = readID();
long reserved1 = readID();
long reserved2 = readID();
int instanceSize = in.readInt();
int bytesRead = 7 * identifierSize + 8;
int numConstPoolEntries = in.readUnsignedShort();
bytesRead += 2;
for (int i = 0; i < numConstPoolEntries; i++) {
int index = in.readUnsignedShort(); // unused
bytesRead += 2;
bytesRead += readValue(null); // We ignore the values
}
int numStatics = in.readUnsignedShort();
bytesRead += 2;
JavaThing[] valueBin = new JavaThing[1];
JavaStatic[] statics = new JavaStatic[numStatics];
for (int i = 0; i < numStatics; i++) {
long nameId = readID();
bytesRead += identifierSize;
byte type = in.readByte();
bytesRead++;
bytesRead += readValueForType(type, valueBin);
String fieldName = getNameFromID(nameId);
if (version >= VERSION_JDK12BETA4) {
type = signatureFromTypeId(type);
}
String signature = "" + ((char) type);
JavaField f = new JavaField(fieldName, signature);
statics[i] = new JavaStatic(f, valueBin[0]);
}
int numFields = in.readUnsignedShort();
bytesRead += 2;
JavaField[] fields = new JavaField[numFields];
for (int i = 0; i < numFields; i++) {
long nameId = readID();
bytesRead += identifierSize;
byte type = in.readByte();
bytesRead++;
String fieldName = getNameFromID(nameId);
if (version >= VERSION_JDK12BETA4) {
type = signatureFromTypeId(type);
}
String signature = "" + ((char) type);
fields[i] = new JavaField(fieldName, signature);
}
String name = classNameFromObjectID.get(new Long(id));
if (name == null) {
warn("Class name not found for " + toHex(id));
name = "unknown-name@" + toHex(id);
}
JavaClass c =
new JavaClass(
id,
name,
superId,
classLoaderId,
signersId,
protDomainId,
fields,
statics,
instanceSize);
snapshot.addClass(id, c);
snapshot.setSiteTrace(c, stackTrace);
return bytesRead;
}
