public String getProperty(String name) {
Value val = getFile(name, Value.class);
if (val != null) {
return val.getString();
}
return null;
}
@Override
protected int compareSecure(Value v, CompareMode mode) {
if (type == Value.CLOB) {
return Integer.signum(getString().compareTo(v.getString()));
}
byte[] v2 = v.getBytesNoCopy();
return Utils.compareNotNullSigned(getBytes(), v2);
}
@Test
public void testOneLevelJSON() {
String json = "{" + "\"key1\" : \"str\"," + "\"key2\" : 123" + "}";
JSONObject o = parseJSON(json);
Value key1 = o.getValue("key1");
assert key1.getString().equals("str");
Value key2 = o.getValue("key2");
assert key2.getDouble() == 123;
}
public VNodeDefinition(Node node) throws RepositoryException {
name = node.getProperty(JCR_NODETYPENAME).getString();
// do properties
properties = new HashMap<String, VPropertyDefinitionI>();
childSuggestions = new HashMap<String, String>();
NodeIterator nodeIterator = node.getNodes();
while (nodeIterator.hasNext()) {
Node definitionNode = nodeIterator.nextNode();
String nodeType = definitionNode.getProperty(AbstractProperty.JCR_PRIMARYTYPE).getString();
// do a property
if (NT_PROPERTYDEFINITION.equals(nodeType)) {
String propertyName = "*"; // default to wildcard name
if (definitionNode.hasProperty(JCR_NAME)) {
// only add non-autogenerated properties
if (!definitionNode.getProperty(JCR_AUTOCREATED).getBoolean()) {
propertyName = definitionNode.getProperty(JCR_NAME).getString();
properties.put(propertyName, new VPropertyDefinition(definitionNode));
}
} else {
// property with no name means this node can accept custom properties
canAddProperties = true;
}
}
// do a child suggestion
if (NT_CHILDNODEDEFINITION.equals(nodeType)) {
String childName = "*";
// only do well-defined childnodedefinitions with the following 2 jcr properties
if (definitionNode.hasProperty(JCR_NAME)
&& definitionNode.hasProperty(JCR_DEFAULTPRIMARYTYPE)) {
childSuggestions.put(
definitionNode.getProperty(JCR_NAME).getString(),
definitionNode.getProperty(JCR_DEFAULTPRIMARYTYPE).getString());
}
}
}
// do supertypes
supertypes = new HashSet<String>();
if (node.hasProperty(JCR_SUPERTYPES)) {
for (Value value : node.getProperty(JCR_SUPERTYPES).getValues()) {
supertypes.add(value.getString());
}
}
// set mixin status
isMixin = node.hasProperty(JCR_ISMIXIN) && node.getProperty(JCR_ISMIXIN).getBoolean();
}
@Override
protected int compareSecure(Value v, CompareMode mode) {
if (v instanceof ValueLobDb) {
ValueLobDb v2 = (ValueLobDb) v;
if (v == this) {
return 0;
}
if (lobId == v2.lobId && small == null && v2.small == null) {
return 0;
}
}
if (type == Value.CLOB) {
return Integer.signum(getString().compareTo(v.getString()));
}
byte[] v2 = v.getBytesNoCopy();
return Utils.compareNotNullSigned(getBytes(), v2);
}
/**
* Look up and return the ClassInfo for an integer handle. This is used when decoding an <code>
* Object</code> from a <code>com.persistit.Value</code> to associate the encoded integer handle
* value with the corresponding class.
*
* @param handle The handle
* @return The associated ClassInfo, or <i>null</i> if there is none.
*/
public ClassInfo lookupByHandle(final int handle) {
final AtomicReferenceArray<ClassInfoEntry> hashTable = _hashTable;
ClassInfoEntry cie = hashTable.get(handle % hashTable.length());
while (cie != null) {
if (cie._classInfo.getHandle() == handle) return cie._classInfo;
cie = cie._next;
}
_cacheMisses.incrementAndGet();
synchronized (this) {
_sessionId.assign();
Exchange ex = null;
try {
ex = getExchange();
final Transaction txn = ex.getTransaction();
txn.begin();
try {
ex.clear().append(BY_HANDLE).append(handle).fetch();
txn.commit();
} catch (final Exception e) {
_persistit.getLogBase().exception.log(e);
throw new ConversionException(e);
} finally {
txn.end();
}
final Value value = ex.getValue();
if (value.isDefined()) {
value.setStreamMode(true);
final int storedId = value.getInt();
final String storedName = value.getString();
final long storedSuid = value.getLong();
if (storedId != handle) {
throw new IllegalStateException(
"ClassInfo stored for handle=" + handle + " has invalid stored handle=" + storedId);
}
final Class<?> cl =
Class.forName(storedName, false, Thread.currentThread().getContextClassLoader());
long suid = 0;
final ObjectStreamClass osc = ObjectStreamClass.lookupAny(cl);
if (osc != null) suid = osc.getSerialVersionUID();
if (storedSuid != suid) {
throw new ConversionException(
"Class "
+ cl.getName()
+ " persistent SUID="
+ storedSuid
+ " does not match current class SUID="
+ suid);
}
final ClassInfo ci = new ClassInfo(cl, suid, handle, osc);
hashClassInfo(ci);
return ci;
} else {
final ClassInfo ci = new ClassInfo(null, 0, handle, null);
hashClassInfo(ci);
return ci;
}
} catch (final ClassNotFoundException cnfe) {
throw new ConversionException(cnfe);
} catch (final PersistitException pe) {
throw new ConversionException(pe);
} finally {
if (ex != null) releaseExchange(ex);
}
}
}
/**
* Look up and return the ClassInfo for a class. This is used when encoding an <code>Object</code>
* into a <code>com.persistit.Value</code>.
*
* @param clazz The <code>Class</code>
* @return The ClassInfo for the specified Class.
*/
public ClassInfo lookupByClass(final Class<?> clazz) {
final AtomicReferenceArray<ClassInfoEntry> hashTable = _hashTable;
ObjectStreamClass osc = null;
long suid = 0;
final int nh = clazz.getName().hashCode() & 0x7FFFFFFF;
ClassInfoEntry cie = hashTable.get(nh % hashTable.length());
while (cie != null) {
if (clazz.equals(cie._classInfo.getDescribedClass())) {
return cie._classInfo;
}
if (cie._classInfo.getDescribedClass() != null
&& cie._classInfo.getName().equals(clazz.getName())) {
if (osc == null) {
osc = ObjectStreamClass.lookupAny(clazz);
if (osc != null) {
suid = osc.getSerialVersionUID();
}
}
if (suid == cie._classInfo.getSUID()) {
return cie._classInfo;
}
}
cie = cie._next;
}
if (osc == null) {
osc = ObjectStreamClass.lookupAny(clazz);
}
if (osc != null) {
suid = osc.getSerialVersionUID();
}
_cacheMisses.incrementAndGet();
/**
* To update the tree, this class uses a unique SessionId and results in using a unique
* Transaction context unrelated to the application context. Therefore if an application does
* this:
*
* <pre>
* <code>
* txn.begin();
* value.put(new SomeClass());
* txn.rollback();
* txn.end();
* </code>
* </pre>
*
* the class SomeClass will be registered even though the enclosing transaction rolled back.
* This is important because other concurrent threads may have started using the handle for
* SomeClass. Therefore this class ensures that a non-nested transaction to insert the new
* ClassInfo into the system volume has committed before adding the handle to the hash table.
*/
synchronized (this) {
final SessionId saveSessionId = _persistit.getSessionId();
Exchange ex = null;
try {
_persistit.setSessionId(_sessionId);
ex = getExchange();
final Transaction txn = ex.getTransaction();
final ClassInfo ci;
final int handle;
txn.begin();
ex.clear().append(BY_NAME).append(clazz.getName()).append(suid).fetch();
final Value value = ex.getValue();
try {
if (value.isDefined()) {
value.setStreamMode(true);
handle = value.getInt();
final String storedName = value.getString();
final long storedSuid = value.getLong();
if (storedSuid != suid || !clazz.getName().equals(storedName)) {
throw new ConversionException(
"Class "
+ clazz.getName()
+ " persistent SUID="
+ storedSuid
+ " does not match current class SUID="
+ suid);
}
ci = new ClassInfo(clazz, suid, handle, osc);
} else {
//
// Store a new ClassInfo record
//
ex.clear().append(NEXT_ID).fetch();
handle = Math.max(_testIdFloor, value.isDefined() ? value.getInt() : HANDLE_BASE) + 1;
value.clear().put(handle);
ex.store();
value.clear();
value.setStreamMode(true);
value.put(handle);
value.put(clazz.getName());
value.put(suid);
ex.clear().append(BY_NAME).append(clazz.getName()).append(suid).store();
ex.clear().append(BY_HANDLE).append(handle).store();
ci = new ClassInfo(clazz, suid, handle, osc);
}
txn.commit();
hashClassInfo(ci);
return ci;
} finally {
txn.end();
}
} catch (final PersistitException pe) {
throw new ConversionException(pe);
} finally {
if (ex != null) {
releaseExchange(ex);
}
_persistit.setSessionId(saveSessionId);
}
}
}
