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org.rx.core.Sys Maven / Gradle / Ivy
package org.rx.core;
import ch.qos.logback.classic.util.LogbackMDCAdapter;
import com.alibaba.fastjson2.*;
import com.alibaba.fastjson2.filter.ValueFilter;
import com.sun.management.HotSpotDiagnosticMXBean;
import com.sun.management.OperatingSystemMXBean;
import io.netty.util.Timeout;
import lombok.*;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.collections4.IterableUtils;
import org.apache.commons.lang3.SystemUtils;
import org.rx.annotation.Subscribe;
import org.rx.bean.DynamicProxyBean;
import org.rx.bean.LogStrategy;
import org.rx.codec.CodecUtil;
import org.rx.exception.FallbackException;
import org.rx.exception.InvalidException;
import org.rx.exception.TraceHandler;
import org.rx.io.Serializer;
import org.rx.net.Sockets;
import org.rx.util.Lazy;
import org.rx.util.function.BiAction;
import org.rx.util.function.BiFunc;
import org.rx.util.function.Func;
import org.rx.util.function.TripleFunc;
import org.slf4j.MDC;
import org.slf4j.spi.MDCAdapter;
import org.springframework.cglib.proxy.Enhancer;
import java.io.File;
import java.io.Serializable;
import java.lang.management.ManagementFactory;
import java.lang.reflect.Array;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
import java.lang.reflect.Type;
import java.net.InetAddress;
import java.net.URI;
import java.util.*;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.function.Function;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static com.alibaba.fastjson2.JSONReader.Feature.AllowUnQuotedFieldNames;
import static com.alibaba.fastjson2.JSONReader.Feature.SupportClassForName;
import static com.alibaba.fastjson2.JSONWriter.Feature.NotWriteDefaultValue;
import static org.rx.core.Constants.*;
import static org.rx.core.Extends.as;
import static org.rx.core.Extends.ifNull;
import static org.rx.core.RxConfig.ConfigNames.NTP_ENABLE_FLAGS;
import static org.rx.core.RxConfig.ConfigNames.getWithoutPrefix;
@Slf4j
@SuppressWarnings(Constants.NON_UNCHECKED)
public final class Sys extends SystemUtils {
@Getter
@RequiredArgsConstructor
public static class Info implements Serializable {
private static final long serialVersionUID = -1263477025428108392L;
private final int cpuThreads;
private final double cpuLoad;
private final int liveThreadCount;
private final long freePhysicalMemory;
private final long totalPhysicalMemory;
private final Linq disks;
public int getCpuLoadPercent() {
return Numbers.toPercent(cpuLoad);
}
public long getUsedPhysicalMemory() {
return totalPhysicalMemory - freePhysicalMemory;
}
public int getUsedPhysicalMemoryPercent() {
return Numbers.toPercent((double) getUsedPhysicalMemory() / totalPhysicalMemory);
}
public boolean hasCpuLoadWarning() {
return getCpuLoadPercent() > RxConfig.INSTANCE.threadPool.cpuLoadWarningThreshold;
}
public boolean hasPhysicalMemoryUsageWarning() {
return getUsedPhysicalMemoryPercent() > RxConfig.INSTANCE.cache.physicalMemoryUsageWarningThreshold;
}
public boolean hasDiskUsageWarning() {
return disks.any(DiskInfo::hasDiskUsageWarning);
}
public DiskInfo getSummedDisk() {
return disks.groupBy(p -> true, (p, x) -> new DiskInfo("SummedDisk", "/", (long) x.sum(y -> y.freeSpace), (long) x.sum(y -> y.totalSpace), false)).first();
}
}
@Getter
@RequiredArgsConstructor
public static class DiskInfo implements Serializable {
private static final long serialVersionUID = -9137708658583628112L;
private final String name;
private final String path;
private final long freeSpace;
private final long totalSpace;
private final boolean bootstrapDisk;
public long getUsedSpace() {
return totalSpace - freeSpace;
}
public int getUsedPercent() {
return Numbers.toPercent((double) getUsedSpace() / totalSpace);
}
public boolean hasDiskUsageWarning() {
return getUsedPercent() > RxConfig.INSTANCE.disk.diskUsageWarningThreshold;
}
}
public static final HotSpotDiagnosticMXBean diagnosticMx = ManagementFactory.getPlatformMXBean(HotSpotDiagnosticMXBean.class);
static final String DPT = "_DPT";
static final Pattern PATTERN_TO_FIND_OPTIONS = Pattern.compile("(?<=-).*?(?==)");
static final JSONReader.Feature[] JSON_READ_FLAGS = new JSONReader.Feature[]{SupportClassForName, AllowUnQuotedFieldNames};
static final JSONWriter.Feature[] JSON_WRITE_FLAGS = new JSONWriter.Feature[]{NotWriteDefaultValue};
public static final ValueFilter JSON_WRITE_SKIP_TYPES = (o, k, v) -> {
if (v == null) {
return null;
}
Iterable iter = Linq.asIterable(v, false);
if (iter != null) {
return Linq.from(iter).select(iv -> jsonValueFilter(o, k, iv)).toList(); //fastjson2 iterable issues
}
return jsonValueFilter(o, k, v);
};
static final String[] seconds = {"ns", "µs", "ms", "s"};
static Timeout samplingTimeout;
static byte transformedFlags;
static {
RxConfig conf = RxConfig.INSTANCE;
log.info("RxMeta {} {}_{}_{} @ {} & {}\n{}", JAVA_VERSION, OS_NAME, OS_VERSION, OS_ARCH,
new File(Strings.EMPTY).getAbsolutePath(), Sockets.getLocalAddresses(false), JSON.toJSONString(conf));
// ObjectChangeTracker.DEFAULT.watch(conf, true)
// .register(Sys.class)
// .register(Tasks.class)
// .register(TraceHandler.INSTANCE);
ObjectChangeTracker.DEFAULT.watch(conf).register(Sys.class);
onChanged(new ObjectChangedEvent(conf, Collections.emptyMap()));
}
@Subscribe(topicClass = RxConfig.class)
static void onChanged(ObjectChangedEvent event) {
Map changedMap = event.getChangedMap();
// log.info("RxMeta Sys changed {}", changedMap);
Integer enableFlags = event.readValue(getWithoutPrefix(NTP_ENABLE_FLAGS));
if (enableFlags == null) {
return;
}
log.info("RxMeta {} changed {}", NTP_ENABLE_FLAGS, enableFlags);
if ((enableFlags & 1) == 1) {
NtpClock.scheduleTask();
}
if ((enableFlags & 2) == 2) {
Tasks.setTimeout(() -> {
log.info("TimeAdvice inject..");
NtpClock.transform();
}, 60000);
}
}
static void checkAdviceShare(boolean isInit) {
Properties props = System.getProperties();
Object v = props.get(ADVICE_SHARE_KEY);
boolean changed = false;
Object[] share;
if (!(v instanceof Object[]) || (share = (Object[]) v).length != ADVICE_SHARE_LEN) {
share = new Object[ADVICE_SHARE_LEN];
changed = true;
}
v = share[ADVICE_SHARE_TIME_INDEX];
long[] time;
if (!(v instanceof long[]) || ((long[]) v).length != 2) {
if (isInit) {
time = new long[2];
time[1] = System.currentTimeMillis();
time[0] = System.nanoTime();
share[ADVICE_SHARE_TIME_INDEX] = time;
} else {
share[ADVICE_SHARE_TIME_INDEX] = null;
}
}
v = share[ADVICE_SHARE_FORK_JOIN_FUNC_INDEX];
if (!(v instanceof Function)) {
share[ADVICE_SHARE_FORK_JOIN_FUNC_INDEX] = ForkJoinPoolWrapper.ADVICE_FN;
}
if (changed) {
props.put(ADVICE_SHARE_KEY, share);
}
}
static long[] getAdviceShareTime() {
Properties props = System.getProperties();
Object v = props.get(ADVICE_SHARE_KEY);
Object[] share;
if (!(v instanceof Object[]) || (share = (Object[]) v).length != ADVICE_SHARE_LEN) {
return null;
}
v = share[ADVICE_SHARE_TIME_INDEX];
long[] time;
return !(v instanceof long[]) || (time = (long[]) v).length != 2 ? null : time;
}
//region basic
public static Map mainOptions(String[] args) {
Map result = new HashMap<>();
for (String arg : args) {
if (arg.startsWith("-")) {
Matcher matcher = PATTERN_TO_FIND_OPTIONS.matcher(arg);
if (matcher.find()) {
result.put(matcher.group(), arg.replaceFirst("-.*?=", Strings.EMPTY));
}
}
}
return result;
}
public static List mainOperations(String[] args) {
List result = new ArrayList<>();
for (String arg : args) {
if (arg.startsWith("-")) {
break;
}
result.add(arg);
}
return result;
}
public static File getJarFile(Object obj) {
return getJarFile(obj.getClass());
}
@SneakyThrows
public static File getJarFile(Class klass) {
String url = klass.getClassLoader()
.getResource(klass.getPackage().getName().replace(".", "/")).toString()
.replace(" ", "%20");
URI uri = new URI(url);
if (uri.getPath() != null) {
return new File(uri);
}
String path = uri.toString();
if (!path.startsWith("jar:file:")) {
return null;
}
//Update Path and Define Zipped File
path = path.substring(path.indexOf("file:/"));
path = path.substring(0, path.toLowerCase().indexOf(".jar") + 4);
if (path.startsWith("file://")) { //UNC Path
path = "C:/" + path.substring(path.indexOf("file:/") + 7);
path = "/" + new URI(path).getPath();
} else {
path = new URI(path).getPath();
}
return new File(path);
}
public static T fallbackProxy(Class targetType, Lazy target, Lazy fallbackTarget) {
return fallbackProxy(targetType, target, fallbackTarget, null);
}
public static T fallbackProxy(@NonNull Class targetType, Lazy target, Lazy fallbackTarget, BiFunc onError) {
return proxy(targetType, (m, p) -> innerFallbackProxy(m, p, target.getValue(), fallbackTarget, onError));
}
public static T fallbackProxy(Class targetType, T target, Lazy fallbackTarget) {
return fallbackProxy(targetType, target, fallbackTarget, null);
}
public static T fallbackProxy(@NonNull Class targetType, T target, Lazy fallbackTarget, BiFunc onError) {
return proxy(targetType, (m, p) -> innerFallbackProxy(m, p, target, fallbackTarget, onError));
}
static Object innerFallbackProxy(Method m, DynamicProxyBean p, @NonNull T target, @NonNull Lazy fallbackTarget, BiFunc onError) {
try {
return p.fastInvoke(target);
} catch (Throwable e) {
T fallbackTargetValue = fallbackTarget.getValue();
try {
Object r = p.fastInvoke(fallbackTargetValue);
log.warn("fallbackProxy", e);
return r;
} catch (Throwable fe) {
FallbackException fb = new FallbackException(m, p, target, fallbackTargetValue, e, fe);
if (onError == null) {
throw fb;
}
return onError.apply(fb);
}
}
}
public static T targetObject(Object proxyObject) {
return IOC.weakMap(proxyObject, false).get(DPT);
}
public static T proxy(Class type, TripleFunc func) {
return proxy(type, func, false);
}
public static T proxy(Class type, TripleFunc func, boolean jdkProxy) {
return proxy(type, func, null, jdkProxy);
}
public static T proxy(Class type, TripleFunc func, T rawObject, boolean jdkProxy) {
T proxyObj;
if (jdkProxy) {
proxyObj = (T) Proxy.newProxyInstance(Reflects.getClassLoader(), new Class[]{type}, new DynamicProxyBean(func));
} else {
proxyObj = (T) Enhancer.create(type, new DynamicProxyBean(func));
}
if (rawObject != null) {
IOC.weakMap(proxyObj, false).put(DPT, rawObject);
}
return proxyObj;
}
public static ArrayList proxyList(ArrayList source, BiAction> onSet) {
return proxy(ArrayList.class, (m, p) -> {
Object val = p.fastInvoke(source);
if (onSet != null && Reflects.List_WRITE_METHOD_NAMES.contains(m.getName())) {
onSet.invoke(source);
}
return val;
});
}
public static T logCtx(String name) {
MDCAdapter mdc = MDC.getMDCAdapter();
if (mdc == null) {
return null;
}
return (T) mdc.get(name);
}
public static void logCtxIfAbsent(String name, Object value) {
MDCAdapter mdc = MDC.getMDCAdapter();
if (mdc == null) {
return;
}
String v = mdc.get(name);
if (v != null) {
return;
}
logCtx(name, value);
}
public static void logCtx(String name, Object value) {
MDCAdapter mdc = MDC.getMDCAdapter();
if (mdc == null) {
return;
}
if (value == null) {
mdc.remove(name);
return;
}
mdc.put(name, toJsonString(value));
}
public static void clearLogCtx() {
MDCAdapter mdc = MDC.getMDCAdapter();
if (mdc == null) {
return;
}
mdc.clear();
}
public interface ProceedFunc extends Func {
default boolean isVoid() {
return false;
}
}
public interface CallLogBuilder {
String buildParamSnapshot(Class declaringType, String methodName, Object[] parameters);
String buildLog(Class declaringType, String methodName, Object[] parameters, String paramSnapshot, Object returnValue, Throwable error, long elapsedNanos);
}
public static class DefaultCallLogBuilder implements CallLogBuilder {
public static final byte HTTP_KEYWORD_FLAG = 1, LOG_MDC_FLAG = 1 << 1;
@Getter
@Setter
byte flags;
public DefaultCallLogBuilder() {
this((byte) 0);
}
public DefaultCallLogBuilder(byte flags) {
this.flags = flags;
}
@Override
public String buildParamSnapshot(Class declaringType, String methodName, Object[] args) {
if (Arrays.isEmpty(args)) {
return "{}";
}
List list = Linq.from(args).select(p -> shortArg(declaringType, methodName, p)).toList();
return toString(list.size() == 1 ? list.get(0) : list);
}
protected Object shortArg(Class declaringType, String methodName, Object arg) {
if (arg instanceof byte[]) {
byte[] b = (byte[]) arg;
if (b.length > MAX_FIELD_SIZE) {
return "[BigBytes]";
}
}
if (arg instanceof String) {
String s = (String) arg;
if (s.length() > MAX_FIELD_SIZE) {
return "[BigString]";
}
}
return arg;
}
protected String toString(Object arg) {
if (arg == null) {
return "null";
}
return toJsonString(arg);
}
@Override
public String buildLog(Class declaringType, String methodName, Object[] parameters, String paramSnapshot, Object returnValue, Throwable error, long elapsedNanos) {
StringBuilder msg = new StringBuilder(Constants.HEAP_BUF_SIZE);
if ((flags & HTTP_KEYWORD_FLAG) == HTTP_KEYWORD_FLAG) {
msg.appendLine("Call:\t%s", methodName)
.appendLine("Request:\t%s", paramSnapshot)
.appendLine("Response:\t%s\tElapsed=%s", toString(shortArg(declaringType, methodName, returnValue)), formatNanosElapsed(elapsedNanos));
} else {
msg.appendLine("Call:\t%s", methodName)
.appendLine("Parameters:\t%s", paramSnapshot)
.appendLine("ReturnValue:\t%s\tElapsed=%s", toString(shortArg(declaringType, methodName, returnValue)), formatNanosElapsed(elapsedNanos));
}
if (error != null) {
msg.appendLine("Error:\t%s", error.getMessage());
}
if ((flags & LOG_MDC_FLAG) == LOG_MDC_FLAG) {
Map mappedDiagnosticCtx = getMDCCtxMap();
boolean first = true;
for (Map.Entry entry : mappedDiagnosticCtx.entrySet()) {
if (first) {
msg.append("MDC:\t");
first = false;
}
msg.appendFormat("%s=%s ", entry.getKey(), entry.getValue());
}
if (!first) {
msg.appendLine();
}
}
return msg.toString();
}
}
static final int MAX_FIELD_SIZE = 1024 * 4;
public static final CallLogBuilder DEFAULT_LOG_BUILDER = new DefaultCallLogBuilder();
public static final CallLogBuilder HTTP_LOG_BUILDER = new DefaultCallLogBuilder(DefaultCallLogBuilder.HTTP_KEYWORD_FLAG);
public static T callLog(Class declaringType, String methodName, Object[] parameters, ProceedFunc proceed) {
return callLog(declaringType, methodName, parameters, proceed, DEFAULT_LOG_BUILDER, null);
}
@SneakyThrows
public static T callLog(@NonNull Class declaringType, @NonNull String methodName, Object[] parameters, @NonNull ProceedFunc proceed, @NonNull CallLogBuilder builder, LogStrategy strategy) {
Object returnValue = null;
Throwable error = null;
String paramSnapshot = builder.buildParamSnapshot(declaringType, methodName, parameters);
long start = System.nanoTime();
try {
T retVal = proceed.invoke();
returnValue = retVal;
return retVal;
} catch (Throwable e) {
throw error = e;
} finally {
long elapsedNanos = System.nanoTime() - start;
try {
TraceHandler.INSTANCE.saveMethodTrace(Thread.currentThread(), declaringType.getName(), methodName, parameters, returnValue, error, elapsedNanos);
RxConfig conf = RxConfig.INSTANCE;
if (strategy == null) {
strategy = conf.logStrategy;
}
if (strategy == null) {
strategy = error != null ? LogStrategy.WRITE_ON_ERROR : LogStrategy.WRITE_ON_NULL;
}
boolean doWrite;
switch (strategy) {
case WRITE_ON_NULL:
doWrite = error != null
|| (!proceed.isVoid() && returnValue == null)
|| (!Arrays.isEmpty(parameters) && Arrays.contains(parameters, null));
break;
case WRITE_ON_ERROR:
doWrite = error != null;
break;
case ALWAYS:
doWrite = true;
break;
default:
doWrite = false;
break;
}
if (doWrite && !CollectionUtils.isEmpty(conf.logTypeWhitelist)) {
doWrite = Linq.from(conf.logTypeWhitelist).any(p -> declaringType.getName().startsWith(p));
}
if (doWrite) {
try {
String msg = builder.buildLog(declaringType, methodName, parameters, paramSnapshot, returnValue, error, elapsedNanos);
if (msg != null) {
if (error != null) {
TraceHandler.INSTANCE.log(msg, error);
} else {
org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(declaringType);
log.info(msg);
}
}
} catch (Throwable e) {
log.warn("buildLog", e);
}
}
} catch (Throwable e) {
log.warn("callLog", e);
}
}
}
public static Map getMDCCtxMap() {
MDCAdapter mdc = MDC.getMDCAdapter();
if (mdc == null) {
return Collections.emptyMap();
}
LogbackMDCAdapter lb = as(mdc, LogbackMDCAdapter.class);
Map ctxMap = lb != null ? lb.getPropertyMap() : mdc.getCopyOfContextMap();
if (ctxMap == null) {
ctxMap = Collections.emptyMap();
}
return ctxMap;
}
//endregion
//region mx
public synchronized static void mxScheduleTask(BiAction mxHandler) {
if (samplingTimeout != null) {
samplingTimeout.cancel();
}
samplingTimeout = CpuWatchman.timer.newTimeout(t -> {
try {
mxHandler.invoke(mxInfo());
} catch (Throwable e) {
TraceHandler.INSTANCE.log(e);
} finally {
t.timer().newTimeout(t.task(), RxConfig.INSTANCE.getMxSamplingPeriod(), TimeUnit.MILLISECONDS);
}
}, RxConfig.INSTANCE.getMxSamplingPeriod(), TimeUnit.MILLISECONDS);
}
public static Info mxInfo() {
File bd = new File("/");
OperatingSystemMXBean osMx = CpuWatchman.osMx;
return new Info(osMx.getAvailableProcessors(), osMx.getSystemCpuLoad(), CpuWatchman.threadMx.getThreadCount(),
osMx.getFreePhysicalMemorySize(), osMx.getTotalPhysicalMemorySize(),
Linq.from(File.listRoots()).select(p -> new DiskInfo(p.getName(), p.getAbsolutePath(), p.getFreeSpace(), p.getTotalSpace(), bd.getAbsolutePath().equals(p.getAbsolutePath()))));
}
public static String formatCpuLoad(double val) {
String p = String.valueOf(val * PERCENT);
int ix = p.indexOf(".") + 1;
String percent = p.substring(0, ix) + p.charAt(ix);
return percent + "%";
}
public static String formatNanosElapsed(long nanoseconds) {
return formatNanosElapsed(nanoseconds, 0);
}
public static String formatNanosElapsed(long nanoseconds, int i) {
long d = 1000L, v = nanoseconds;
while (v >= d) {
v /= d;
if (++i >= 3) {
break;
}
}
return v + seconds[i];
}
//endregion
//region common
public static T deepClone(T obj) {
return Serializer.DEFAULT.deserialize(Serializer.DEFAULT.serialize(obj));
}
public static String fastCacheKey(String region, Object... args) {
if (region == null) {
region = Reflects.CLASS_TRACER.getClassTrace(1).getSimpleName();
}
if (!Arrays.isEmpty(args)) {
region += java.util.Arrays.hashCode(args);
}
return region;
}
public static String cacheKey(String region, Object... args) {
if (region == null) {
region = Reflects.CLASS_TRACER.getClassTrace(1).getSimpleName();
}
StringBuilder buf = new StringBuilder();
buf.append(region);
if (!Arrays.isEmpty(args)) {
buf.append(Constants.CACHE_KEY_SUFFIX);
if (args.length == 1 && args[0] instanceof String) {
buf.append(args[0]);
} else {
buf.append(CodecUtil.hash64(args));
}
}
return buf.toString();
}
//region json
public static T readJsonValue(Object json, String path) {
return readJsonValue(json, path, null, true);
}
/**
* @param json
* @param path
* @param childSelect !Reflects.isBasicType(cur.getClass())
* @param throwOnEmptyChild
* @param
* @return
*/
public static T readJsonValue(@NonNull Object json, @NonNull String path,
BiFunc childSelect, boolean throwOnEmptyChild) {
if (json instanceof Map) {
Map jObj = (Map) json;
Object cur = jObj.get(path);
if (cur != null) {
if (childSelect != null) {
cur = childSelect.apply(cur);
}
return (T) cur;
}
}
Object cur = json;
int max = path.length() - 1;
AtomicInteger i = new AtomicInteger();
StringBuilder buf = new StringBuilder();
for (; i.get() <= max; i.incrementAndGet()) {
char c = path.charAt(i.get());
if (c != objKey && c != arrBeginKey) {
buf.append(c);
continue;
}
cur = visitJson(cur, path, i, c, buf.toString(), max, childSelect, throwOnEmptyChild);
buf.setLength(0);
}
if (!buf.isEmpty()) {
cur = visitJson(cur, path, i, objKey, buf.toString(), max, childSelect, throwOnEmptyChild);
}
return (T) cur;
}
static final char objKey = '.', arrBeginKey = '[', arrEndKey = ']';
static Object visitJson(Object cur, String path, AtomicInteger i, char c, String visitor,
int max, BiFunc childSelect, boolean throwOnEmptyChild) {
if (!visitor.isEmpty()) {
if (cur instanceof Map) {
Map obj = (Map) cur;
cur = obj.get(visitor);
} else if (cur instanceof Iterable) {
//ignore
} else {
if (cur == null) {
if (throwOnEmptyChild) {
throw new InvalidException("Get empty child by path {}", visitor);
}
return null;
}
try {
cur = Reflects.readField(cur, visitor);
} catch (Throwable e) {
throw new InvalidException("Object \"{}\" is not a map or not found field with path {}", cur, visitor, e);
}
}
}
if (c == arrBeginKey) {
StringBuilder idxBuf = new StringBuilder();
for (i.incrementAndGet(); i.get() < path.length(); i.incrementAndGet()) {
char ic = path.charAt(i.get());
if (ic != arrEndKey) {
idxBuf.append(ic);
continue;
}
break;
}
int idx;
try {
idx = Integer.parseInt(idxBuf.toString());
visitor = String.format("%s[%s]", visitor, idxBuf);
} catch (Throwable e) {
throw new InvalidException("Index \"{}\" is not a number", idxBuf, e);
}
if (cur != null) {
if (cur instanceof Iterable) {
try {
cur = IterableUtils.get((Iterable) cur, idx);
} catch (IndexOutOfBoundsException e) {
if (throwOnEmptyChild) {
throw new InvalidException("Array \"{}\" is index out of bounds with path {}", cur, visitor, e);
}
cur = null;
}
} else if (cur.getClass().isArray()) {
try {
cur = Array.get(cur, idx);
} catch (ArrayIndexOutOfBoundsException e) {
if (throwOnEmptyChild) {
throw new InvalidException("Array \"{}\" is index out of bounds with path {}", cur, visitor, e);
}
cur = null;
}
} else {
throw new InvalidException("Object \"{}\" is not a array with path {}", cur, visitor);
}
}
}
if (cur != null && childSelect != null) {
cur = childSelect.apply(cur);
}
if (i.get() < max && cur == null) {
if (throwOnEmptyChild) {
throw new InvalidException("Get empty child by path {}", visitor);
}
return null;
}
return cur;
}
//TypeReference
public static T fromJson(Object src, Type type) {
// if (src == null) {
// return null;
// }
String js = toJsonString(src);
try {
return JSON.parseObject(js, type, JSON_READ_FLAGS);
} catch (Exception e) {
throw new InvalidException("Invalid json {}", js, e);
}
}
public static JSONObject toJsonObject(Object src) {
if (src instanceof JSONObject) {
return (JSONObject) src;
}
if (src instanceof Map) {
return new JSONObject((Map) src);
}
String js = toJsonString(src);
try {
return JSON.parseObject(js);
} catch (Exception e) {
throw new InvalidException("Invalid json {}", js, e);
}
}
public static JSONArray toJsonArray(Object src) {
if (src instanceof JSONArray) {
return (JSONArray) src;
}
if (src instanceof Collection) {
return new JSONArray((Collection) src);
}
String js = toJsonString(src);
try {
return JSON.parseArray(js);
} catch (Exception e) {
throw new InvalidException("Invalid json {}", js, e);
}
}
public static String toJsonString(Object src) {
return toJsonString(src, null);
}
public static String toJsonString(Object src, ValueFilter valueFilter) {
if (src == null) {
return "{}";
}
String s;
if ((s = as(src, String.class)) != null) {
return s;
}
try {
return JSON.toJSONString(JSON_WRITE_SKIP_TYPES.apply(null, null, src), ifNull(valueFilter, JSON_WRITE_SKIP_TYPES), JSON_WRITE_FLAGS);
} catch (Throwable e) {
Linq q;
if (Linq.tryAsIterableType(src.getClass())) {
q = Linq.fromIterable(src);
} else {
q = Linq.from(src);
}
Set> jsonSkipTypes = RxConfig.INSTANCE.jsonSkipTypes;
jsonSkipTypes.addAll(q.where(x -> x != null && !Reflects.isBasicType(x.getClass())).select(Object::getClass).toSet());
TraceHandler.INSTANCE.log("toJsonString {}", Linq.from(jsonSkipTypes).toJoinString(",", Class::getName), e);
JSONObject json = new JSONObject();
json.put("_input", src.toString());
json.put("_error", e.getMessage());
return json.toString();
}
}
static Object jsonValueFilter(Object o, String k, Object v) {
if (v != null) {
if (v instanceof InetAddress) {
return v.toString();
}
if (Linq.from(RxConfig.INSTANCE.jsonSkipTypes).any(t -> Reflects.isInstance(v, t))) {
return v.getClass().getName();
}
}
return v;
}
//endregion
//endregion
}
