/**
* Copy from the copy method in StructUtil. Did not want to drag that code in. maybe this actually
* should go to struct.
*
* @param from
* @param to
* @param excludes
* @return
* @throws Exception
*/
public static <T extends struct> T xcopy(struct from, T to, String... excludes) throws Exception {
Arrays.sort(excludes);
for (Field f : from.fields()) {
if (Arrays.binarySearch(excludes, f.getName()) >= 0) continue;
Object o = f.get(from);
if (o == null) continue;
Field tof = to.getField(f.getName());
if (tof != null)
try {
tof.set(to, Converter.cnv(tof.getGenericType(), o));
} catch (Exception e) {
System.out.println(
"Failed to convert "
+ f.getName()
+ " from "
+ from.getClass()
+ " to "
+ to.getClass()
+ " value "
+ o
+ " exception "
+ e);
}
}
return to;
}
// generates the 'select' part of the SQL select statement
public String selectProperties(DataObj d) {
StringBuilder s = new StringBuilder(1024);
String name = d.getName();
s.append("select ");
boolean firstField = true;
for (Field f : d.getFields()) {
if (firstField) {
firstField = false;
s.append(name + "." + f.getName() + " ");
} else {
s.append(", " + name + "." + f.getName() + " ");
}
}
return s.toString();
}
/**
* Computes the serial version UID value for the given class. The code is taken from {@link
* ObjectStreamClass#computeDefaultSUID(Class)}.
*
* @param cls A class.
* @return A serial version UID.
* @throws IOException If failed.
*/
static long computeSerialVersionUid(Class cls) throws IOException {
if (Serializable.class.isAssignableFrom(cls) && !Enum.class.isAssignableFrom(cls)) {
return ObjectStreamClass.lookup(cls).getSerialVersionUID();
}
MessageDigest md;
try {
md = MessageDigest.getInstance("SHA");
} catch (NoSuchAlgorithmException e) {
throw new IOException("Failed to get digest for SHA.", e);
}
md.update(cls.getName().getBytes(UTF_8));
for (Field f : getFieldsForSerialization(cls)) {
md.update(f.getName().getBytes(UTF_8));
md.update(f.getType().getName().getBytes(UTF_8));
}
byte[] hashBytes = md.digest();
long hash = 0;
// Composes a single-long hash from the byte[] hash.
for (int i = Math.min(hashBytes.length, 8) - 1; i >= 0; i--)
hash = (hash << 8) | (hashBytes[i] & 0xFF);
return hash;
}
public String toJsonObj(DataObj d) {
StringBuilder s = new StringBuilder(1024);
s.append(returnTab(2) + "var data = {\n");
String name = d.getName();
boolean firstField = true;
for (Field f : d.getFields()) {
// update will not change the auto-created id
if (f.getName().equals("ID")) {
continue;
}
if (firstField) {
firstField = false;
s.append(returnTab(3) + f.getName() + " : " + name + "." + f.getName() + " ");
} else {
s.append(",\n" + returnTab(3) + f.getName() + " : " + name + "." + f.getName() + " ");
}
}
s.append("\n" + returnTab(2) + "};\n");
return s.toString();
}
protected void generateView(Map<String, org.ektorp.support.DesignDocument.View> views, Field f) {
DocumentReferences referenceMetaData = f.getAnnotation(DocumentReferences.class);
if (referenceMetaData == null) {
LOG.warn("No DocumentReferences annotation found in field: ", f.getName());
return;
}
if (referenceMetaData.view().length() > 0) {
LOG.debug("Skipping view generation for field {} as view is already specified", f.getName());
return;
}
if (Set.class.isAssignableFrom(f.getType())) {
generateSetBasedDocRefView(views, f, referenceMetaData);
} else {
throw new ViewGenerationException(
String.format(
"The type of the field: %s in %s annotated with DocumentReferences is not supported. (Must be assignable from java.util.Set)",
f.getName(), f.getDeclaringClass()));
}
}
private static LinkedHashMap<String, Prop> createProps() {
Field[] fs = Configuration.class.getDeclaredFields();
LinkedHashMap<String, Prop> res = new LinkedHashMap<String, Prop>();
for (Field f : fs)
if (!Modifier.isStatic(f.getModifiers())) {
Description annotation = f.getAnnotation(Description.class);
if (annotation != null) {
String name = f.getName().replace('_', '.');
res.put(name, new Prop(name, annotation.value(), f));
}
}
return res;
}
private void assertion(boolean basic, Var x, Field f) {
if (basic) {
if (x.getType().getKind() != TypeIR.Kind.BASIC) {
if (f == null) {
System.out.println(" 1mm " + x.getType());
fail = true;
}
if (f.getType().getKind() != TypeIR.Kind.BASIC) {
System.out.println(" xxmm " + x.getType());
System.out.println(" 2mm " + f.getName() + " " + f.getType());
fail = true;
}
}
} else {
if (x.getType().getKind() == TypeIR.Kind.BASIC) {
System.out.println(" 3mm " + x.getType());
fail = true;
}
if (f != null && f.getType().getKind() == TypeIR.Kind.BASIC) {
System.out.println(" 4mm " + f.getName() + " " + f.getType());
fail = true;
}
}
}
private MutableTreeNode populateAttributes(CavityDBObject obj) {
DefaultMutableTreeNode tree = new DefaultMutableTreeNode("attrs");
Class cls = obj.getClass();
for (Field f : cls.getFields()) {
int mod = f.getModifiers();
if (Modifier.isPublic(mod) && !Modifier.isStatic(mod)) {
String fieldName = f.getName();
try {
Object value = f.get(obj);
tree.add(
new DefaultMutableTreeNode(String.format("%s=%s", fieldName, String.valueOf(value))));
} catch (IllegalAccessException e) {
// do nothing.
}
}
}
return tree;
}
private void importField(DbJVClass dbClaz, Field field) throws DbException {
if (dbClaz == null) {
return;
}
DbJVDataMember member = new DbJVDataMember(dbClaz);
member.setName(field.getName());
// set field type
Type type = field.getType();
member.setType(toAdt(type));
member.setTypeUse(toTypeUse(type));
// set field modifiers
member.setFinal(field.isFinal());
member.setStatic(field.isStatic());
member.setTransient(field.isTransient());
member.setVisibility(toVisibility(field));
member.setVolatile(field.isVolatile());
}
/** Reflect operations demo */
public static void reflect(Object obj) {
// `cls用于描述对象所属的类`
Class cls = obj.getClass();
print("Class Name: " + cls.getCanonicalName());
// `fields包含对象的所有属性`
Field[] fields = cls.getDeclaredFields();
print("List of fields:");
for (Field f : fields) {
print(String.format("%30s %15s", f.getType(), f.getName()));
}
// `methods包含对象的所有方法`
Method[] methods = cls.getDeclaredMethods();
print("List of methods:");
for (Method m : methods)
print(
String.format(
"%30s %15s %30s",
m.getReturnType(), m.getName(), Arrays.toString(m.getParameterTypes())));
Constructor[] constructors = cls.getConstructors();
print("List of contructors:");
for (Constructor c : constructors)
print(String.format("%30s %15s", c.getName(), Arrays.toString(c.getParameterTypes())));
}
@Override
public int compare(Field f1, Field f2) {
return f1.getName().compareTo(f2.getName());
}
// query NO starts at 0
// queryNoNext starts at 1
// depth starts at 0
// DataObj d - data object that's foreign keys are being expanded from ids to JSON objects
// depth - tab placement
// queryNo - which query is currently
public String evaluateFK(
DataObj d, int depth, String lastQueryFrom, String lastQueryWhere, String dbQueryParam) {
StringBuilder s = new StringBuilder(4028);
HashMap<DataObj, List<String>> dataObjsMap = new HashMap<DataObj, List<String>>();
// First, evaluate all the foreign keys on the current object
for (Field f : d.getFields()) {
if (f.getType() == Field.Type.FOREIGN_KEY) {
// get the object corresponding to the foreign key field str
// so that you know what fields to get in sql statement
for (DataObj fkObj : d.getDependencies()) {
if ((fkObj.getName()).equals(f.getTypeStr())) {
String parentRow = "rows" + Integer.toString(queryNo);
String fkRow = "rows" + Integer.toString(queryNoNext);
String fkName = fkObj.getName();
String parName = d.getName();
// The 'from' part of a SQL select FROM where
String queryFrom = lastQueryFrom + " " + fkName + " as " + fkName + " ";
// The 'where' part of a SQL select from WHERE
String queryWhere =
lastQueryWhere + " " + fkName + ".id = " + parName + "." + f.getName();
// Recursive calls do need this text
if (queryNo == 0) {
queryFrom += " inner join " + parName + " as " + parName + " ";
queryWhere += " and " + parName + ".id = ?";
}
if (depth == 0) {
s.append(returnTab(2 + depth) + "totalCount += rows0.length;\n");
}
s.append(returnTab(2 + depth) + parentRow + ".forEach(function(row) { \n");
s.append(returnTab(3 + depth) + "query = \"" + selectProperties(fkObj) + "\";\n");
s.append(returnTab(3 + depth) + "query += \"from " + queryFrom + "\";\n");
s.append(returnTab(3 + depth) + "query += \"where " + queryWhere + "\";\n");
s.append(
returnTab(3 + depth)
+ "con.query(query, "
+ dbQueryParam
+ ", function(err, "
+ fkRow
+ ",fields) {\n");
s.append(returnTab(4 + depth) + "if (err) throw err;\n");
s.append(returnTab(4 + depth) + "row." + f.getName() + " = " + fkRow + "[0];\n");
// Store this object, so below you can check if it has
// foreign keys that have to be evaluated
ArrayList<String> a = new ArrayList<String>();
a.add(queryFrom + " inner join ");
a.add(queryWhere + " and ");
a.add(Integer.toString(queryNoNext));
dataObjsMap.put(fkObj, a);
depth += 2;
queryNoNext++;
break;
}
}
}
}
// Second, recursively evaluate all of the foreign key objects
// The keys of dataObjsMap are all of the objects that are
// DataObj d's object dependencies
// The value is an array [0] - queryFrom
// [1] - queryWhere
// [2] - queryNo
// The dataObjsMap is populated roughly 10 lines up
Iterator it = dataObjsMap.entrySet().iterator();
while (it.hasNext()) {
Map.Entry one = (Map.Entry) it.next();
DataObj key = (DataObj) one.getKey();
List<String> values = (List<String>) dataObjsMap.get(key);
// reset global variable queryNo
// why are we parsing ints? Need to parse the int because
// [2] queryNo is an int
queryNo = Integer.parseInt(values.get(2));
s.append(
evaluateFK(key, depth, (String) values.get(0), (String) values.get(1), dbQueryParam));
}
if (depth > tabDepth) {
tabDepth = depth;
}
return s.toString();
}
private static void extractViewPattern(int depth, ViewTrace trace, StringBuilder p) {
if (!processedViewsForPatterns.add(trace)) {
p.append("(ALIASED) ");
}
p.append(trace.realView.getClass() + " size = " + trace.realView.size() + "\n");
indent(depth, p);
p.append(" use:");
if (trace.materializeCount == 0 && trace.sumCount == 0 && trace.getCount == 0) {
p.append(" UNUSED");
} else {
if (trace.getCount > 0) {
p.append(" get");
}
if (trace.materializeCount > 0) {
p.append(" materialize");
}
if (trace.sumCount > 0) {
p.append(" sum");
}
}
p.append("\n");
if (false) {
p.append(" allocationSite =");
Site.printSite(trace.allocationSite, p);
p.append("\n");
indent(depth, p);
}
RArray view = trace.realView;
Class viewClass = view.getClass();
Field[] fields = getAllFields(viewClass);
boolean printedField = false;
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (RArray.class.isAssignableFrom(fieldClass)) {
continue; // these later
}
indent(depth, p);
p.append(" " + f.getName() + " ");
try {
f.setAccessible(true);
Object o = f.get(view);
p.append(o == null ? "null (" + fieldClass + ")" : o.getClass());
p.append("\n");
printedField = true;
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
boolean printNewline = printedField;
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (!RArray.class.isAssignableFrom(fieldClass)) {
continue;
}
if (printNewline) {
p.append("\n");
printNewline = false;
}
indent(depth, p);
p.append(" " + f.getName() + " ");
try {
f.setAccessible(true);
Object o = f.get(view);
if (o instanceof TracingView) {
p.append("VIEW ");
TracingView child = (TracingView) o;
extractViewPattern(depth + 2, child.getTrace(), p);
} else {
p.append("ARRAY " + o.getClass() + " size = " + ((RArray) o).size());
if (o instanceof View) {
ps.println("MISSED VIEW " + o);
}
}
p.append("\n");
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
}
private static void dumpView(int depth, ViewTrace trace) {
printedIndividualViews.add(trace);
ps.println(trace.realView + " size = " + trace.realView.size());
if (TRACE_ALLOCATION_SITE) {
indent(depth);
ps.print(" allocationSite =");
Site.printSite(trace.allocationSite);
ps.println();
}
int unused = trace.unusedElements();
int redundant = trace.redundantGets();
boolean singleUse;
Site[] useSites;
if (TRACE_USE_SITES) {
useSites = trace.useSites.toArray(new Site[trace.useSites.size()]);
singleUse = (useSites.length == 1);
} else if (TRACE_SINGLE_USE_SITE) {
useSites = null;
singleUse = !trace.multipleUseSites;
} else {
useSites = null;
singleUse = false;
}
if (singleUse) {
indent(depth);
ps.print(" singleUseSite = US");
Site.printSite(useSites != null ? useSites[0] : trace.singleUseSite);
if (trace.getCount > 0) {
ps.println(" (get)");
} else if (trace.sumCount > 0) {
ps.println(" (sum)");
} else {
ps.println(" (materialize)");
}
} else if (trace.getCount > 0) {
if (TRACE_FIRST_GET_SITE) {
indent(depth);
ps.print(" firstGetSite =");
Site.printSite(trace.firstGetSite);
ps.println();
}
if (trace.materializeCount == 0 && trace.sumCount == 0) {
if (unused > 0) {
indent(depth);
ps.println(" unusedElements = " + unused);
}
if (redundant > 0) {
indent(depth);
ps.println(" redundantGets = " + redundant + " (no materialize, sum)");
}
}
} else {
if (trace.materializeCount == 0 && trace.sumCount == 0) {
indent(depth);
ps.println(" UNUSED");
} else {
indent(depth);
ps.println(
" materializeCount = "
+ trace.materializeCount
+ " sumCount = "
+ trace.sumCount
+ " getCount = "
+ trace.getCount);
}
}
if (TRACE_FIRST_MATERIALIZE_SITE && trace.materializeCount > 0 && !singleUse) {
indent(depth);
ps.print(" firstMaterializeSite =");
Site.printSite(trace.firstMaterializeSite);
ps.println();
}
if (TRACE_FIRST_SUM_SITE && trace.sumCount > 0 && !singleUse) {
indent(depth);
ps.print(" firstSumSite =");
Site.printSite(trace.firstSumSite);
ps.println();
}
if (TRACE_USE_SITES) {
if (useSites.length != 1) {
indent(depth);
ps.println(" useSites (" + useSites.length + "):");
for (Site s : useSites) {
indent(depth);
ps.print(" US");
Site.printSite(s);
ps.println();
}
}
}
ps.println();
RArray view = trace.realView;
Class viewClass = view.getClass();
Field[] fields = getAllFields(viewClass);
boolean printedField = false;
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (RArray.class.isAssignableFrom(fieldClass)) {
continue; // these later
}
indent(depth);
ps.print(" " + f.getName() + " ");
try {
f.setAccessible(true);
ps.println(f.get(view));
printedField = true;
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
boolean printNewline = printedField;
for (Field f : fields) {
if (f.isSynthetic()) {
continue;
}
Class fieldClass = f.getType();
if (!RArray.class.isAssignableFrom(fieldClass)) {
continue;
}
if (printNewline) {
ps.println();
printNewline = false;
}
indent(depth);
ps.print(" " + f.getName() + " ");
try {
f.setAccessible(true);
Object o = f.get(view);
if (o instanceof TracingView) {
ps.print("VIEW ");
TracingView child = (TracingView) o;
dumpView(depth + 2, child.getTrace());
} else {
ps.print("ARRAY " + o + " size = " + ((RArray) o).size());
if (o instanceof View) {
ps.println("MISSED VIEW " + o);
}
}
ps.println();
} catch (IllegalAccessException e) {
assert Utils.check(false, "can't read a view field " + e);
}
}
}