org.glassfish.admingui.common.util.GuiUtil Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of payara-micro Show documentation
Show all versions of payara-micro Show documentation
Micro Distribution of the Payara Project
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2016 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
// Portions Copyright [2016-2022] [Payara Foundation and/or its affiliates]
package org.glassfish.admingui.common.util;
import com.sun.jsftemplating.annotation.Handler;
import com.sun.jsftemplating.annotation.HandlerInput;
import com.sun.jsftemplating.layout.descriptors.handler.HandlerContext;
import com.sun.jsftemplating.resource.ResourceBundleManager;
import java.io.File;
import java.io.StringReader;
import java.io.UnsupportedEncodingException;
import java.net.URLEncoder;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.ResourceBundle;
import java.util.StringTokenizer;
import java.util.logging.Level;
import java.util.logging.Logger;
import jakarta.faces.context.ExternalContext;
import jakarta.faces.context.FacesContext;
import jakarta.json.Json;
import jakarta.json.JsonStructure;
import jakarta.json.JsonValue.ValueType;
import jakarta.servlet.ServletContext;
import jakarta.servlet.ServletRequest;
import jakarta.servlet.http.HttpServletRequest;
import org.glassfish.admingui.common.security.AdminConsoleAuthModule;
import org.glassfish.hk2.api.ServiceLocator;
/**
* @author anilam - created on August 10, 2006, 9:19 PM
*/
public class GuiUtil {
public static final String I18N_RESOURCE_BUNDLE = "__i18n_resource_bundle";
public static final String RESOURCE_NAME = "org.glassfish.admingui.core.Strings";
public static final String COMMON_RESOURCE_NAME = "org.glassfish.common.admingui.Strings";
public static final String LOGGER_NAME = "org.glassfish.admingui";
public static final Locale guiLocale = new Locale("UTF-8");
/** Creates a new instance of GuiUtil */
public GuiUtil() {
}
public static Logger getLogger() {
return Logger.getLogger(LOGGER_NAME);
}
@Handler(id = "guiLog",
input = {
@HandlerInput(name = "message", type = String.class, required = true),
@HandlerInput(name = "level", type = String.class)
})
public static void guiLog(HandlerContext handlerCtx) {
String level = (String)handlerCtx.getInputValue("level");
if (level == null) {
level = "INFO";
} else {
level = level.toUpperCase(GuiUtil.guiLocale);
}
getLogger().log(Level.parse(level), (String)handlerCtx.getInputValue("message"));
}
//return true if the String is null or is """
public static boolean isEmpty(String str) {
return (str == null || "".equals(str)) ? true : false;
}
public static String getCommonMessage(String key, Object[] args) {
return getMessage(COMMON_RESOURCE_NAME, key, args) ;
}
public static String getMessage(String resourceName, String key, Object[] args) {
return formatMessage( getMessage(resourceName, key), args);
}
public static String getMessage(String key, Object[] args) {
if (key == null) {
return null;
}
String value = getMessage(key);
return formatMessage(getMessage(value), args);
}
private static String formatMessage(String msg, Object[] args){
if (args != null) {
MessageFormat mf = new MessageFormat(msg);
msg = mf.format(args);
}
return msg;
}
public static void initSessionAttributes(){
Logger logger = GuiUtil.getLogger();
if (logger.isLoggable(Level.INFO)) {
logger.log(Level.INFO, GuiUtil.getCommonMessage("LOG_INIT_SESSION"));
}
ExternalContext externalCtx = FacesContext.getCurrentInstance().getExternalContext();
Map sessionMap = externalCtx.getSessionMap();
if (logger.isLoggable(Level.FINE)){
logger.log(Level.INFO, "SessionMap from externalCtx: " + sessionMap.toString());
}
Object request = externalCtx.getRequest();
if (request instanceof jakarta.servlet.ServletRequest){
ServletRequest srequest = (ServletRequest) request;
sessionMap.put("hostName", srequest.getServerName());
String restServerName = (String) sessionMap.get(AdminConsoleAuthModule.REST_SERVER_NAME);
if (restServerName == null) {
throw new IllegalStateException("REST Server Name not set!");
}
int port = (Integer) sessionMap.get(AdminConsoleAuthModule.REST_SERVER_PORT);
sessionMap.put("requestIsSecured", srequest.isSecure());
sessionMap.put("REST_URL", "http" + (srequest.isSecure() ? "s" : "") + "://" + restServerName + ":" + port + "/management/domain");
sessionMap.put("MONITOR_URL", "http" + (srequest.isSecure() ? "s" : "") + "://" + restServerName + ":" + port + "/monitoring/domain");
} else {
//should never get here.
sessionMap.put("hostName", "");
}
final String domainName = RestUtil.getPropValue((String) (sessionMap.get("REST_URL")), "administrative.domain.name", null);
sessionMap.put("domainName", domainName);
sessionMap.put("localhostNodeName", "localhost-"+domainName);
sessionMap.put("_noNetwork", (System.getProperty("com.sun.enterprise.tools.admingui.NO_NETWORK", "false").equals("true"))? Boolean.TRUE: Boolean.FALSE);
sessionMap.put("supportCluster", Boolean.FALSE);
Map version = RestUtil.restRequest(sessionMap.get("REST_URL")+"/version", null, "GET" ,null, false);
Map versionData = (Map)version.get("data");
sessionMap.put("appServerVersion", versionData.get("message"));
sessionMap.put("appServerMajorVersion", ((Map)versionData.get("extraProperties")).get("version-number"));
Map locations = RestUtil.restRequest(sessionMap.get("REST_URL")+"/locations", null, "GET" ,null, false);
final String installDir = (String)((Map) ((Map) locations.get("data")).get("properties")).get("Base-Root");
sessionMap.put("baseRootDir", installDir);
sessionMap.put("topDir", (new File (installDir)).getParent());
Map runtimeInfoMap = RestUtil.restRequest(sessionMap.get("REST_URL")+"/get-runtime-info", null, "GET" ,null, false);
String debugFlag = (String) ((Map)((Map)runtimeInfoMap.get("data")).get("properties")).get("debug");
if("true".equals(debugFlag)){
String debugPort = (String) ((Map)((Map)runtimeInfoMap.get("data")).get("properties")).get("debugPort");
sessionMap.put("debugInfo", GuiUtil.getMessage("inst.debugEnabled") + debugPort );
}else{
sessionMap.put("debugInfo", GuiUtil.getMessage("inst.notEnabled"));
}
try{
Map secureAdminAttrs = RestUtil.getAttributesMap(sessionMap.get("REST_URL")+"/secure-admin");
if (Boolean.parseBoolean((String)secureAdminAttrs.get("enabled"))){
sessionMap.put("secureAdminEnabled", "true");
}else{
sessionMap.put("secureAdminEnabled", "false");
}
}catch(Exception ex){
sessionMap.put("secureAdminEnabled", "false");
}
Map asadminRecorderEnabled =
RestUtil.restRequest(sessionMap.get("REST_URL")
+ "/asadmin-recorder-enabled", null, "GET", null,
false);
sessionMap.put("showEnableAsadminRecorderButton", !(boolean)((Map)
((Map) asadminRecorderEnabled.get("data"))
.get("extraProperties")).get("asadminRecorderEnabled"));
sessionMap.put("showDisableAsadminRecorderButton", (boolean)((Map)
((Map) asadminRecorderEnabled.get("data"))
.get("extraProperties")).get("asadminRecorderEnabled"));
Map environmentWarningConfiguration =
RestUtil.restRequest(sessionMap.get("REST_URL")
+ "/get-environment-warning-configuration", null, "GET", null,
false);
sessionMap.put("environmentWarningBarEnabled", ((Map) ((Map)
((Map) environmentWarningConfiguration.get("data"))
.get("extraProperties")).get("environmentWarningConfiguration")).get("enabled"));
sessionMap.put("environmentWarningBarMessage", ((Map) ((Map)
((Map) environmentWarningConfiguration.get("data"))
.get("extraProperties")).get("environmentWarningConfiguration")).get("message"));
sessionMap.put("environmentWarningBarBackgroundColour", ((Map) ((Map)
((Map) environmentWarningConfiguration.get("data"))
.get("extraProperties")).get("environmentWarningConfiguration")).get("backgroundColour"));
sessionMap.put("environmentWarningBarTextColour", ((Map) ((Map)
((Map) environmentWarningConfiguration.get("data"))
.get("extraProperties")).get("environmentWarningConfiguration")).get("textColour"));
sessionMap.put("reqMsg", GuiUtil.getMessage("msg.JS.enterValue"));
sessionMap.put("reqMsgSelect", GuiUtil.getMessage("msg.JS.selectValue"));
sessionMap.put("reqInt", GuiUtil.getMessage("msg.JS.enterIntegerValue"));
sessionMap.put("reqNum", GuiUtil.getMessage("msg.JS.enterNumericValue"));
sessionMap.put("reqPort", GuiUtil.getMessage("msg.JS.enterPortValue"));
sessionMap.put("_SESSION_INITIALIZED","TRUE");
sessionMap.put("restartRequired", Boolean.FALSE);
/* refer to issue# 5698 and issue# 3691
* There is a chance that this getAdminSessionTimoutInMinutes() throws an exception in Turkish locale.
* In such a case, we catch and log the exception and assume it is set to 0.
* Otherwise GUI's main page can't come up.
*/
try {
Map result = RestUtil.restRequest(GuiUtil.getSessionValue("REST_URL")+"/configs/config/server-config/admin-service/das-config", null, "GET", null, false);
String timeOut = (String)((Map)((Map)((Map)result.get("data")).get("extraProperties")).get("entity")).get("adminSessionTimeoutInMinutes");
if ((timeOut != null) && (!timeOut.equals(""))) {
int time = Integer.parseInt(timeOut);
if (time == 0) {
((HttpServletRequest) request).getSession().setMaxInactiveInterval(-1);
} else {
((HttpServletRequest) request).getSession().setMaxInactiveInterval(time * 60);
}
}
} catch (Exception nfe) {
((HttpServletRequest) request).getSession().setMaxInactiveInterval(-1);
log("log.error.initSession", nfe);
}
try {
setTimeStamp();
} catch (Exception ex) {
log("log.error.initSession", ex);
}
}
private static File getTimeStampFile() {
Map result = RestUtil.restRequest(GuiUtil.getSessionValue("REST_URL") +
"/locations", null, "GET", null, false);
String configDir = (String) ((Map)((Map)result.get("data")).get("properties")).get("Config-Dir");
if (configDir != null) {
return new File(configDir, ".consolestate");
}
return null;
}
public static void setTimeStamp() throws Exception {
File f = getTimeStampFile();
if (f != null && !f.createNewFile()) {
f.setLastModified(System.currentTimeMillis());
}
}
public static long getTimeStamp() throws Exception {
File f = getTimeStampFile();
if (f == null) {
throw new Exception("Could not get TimeStamp file for admin console");
}
if (!f.exists()) {
return 0L;
}
return f.lastModified();
}
public static void setSessionValue(String key, Object value){
Map sessionMap = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
sessionMap.put(key, value);
}
public static Object getSessionValue(String key){
Map sessionMap = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
if (sessionMap.get("_SESSION_INITIALIZED") == null){
initSessionAttributes();
}
return sessionMap.get(key);
}
/**
* This method encodes the given String with the specified type.
*
If type is not specified then it defaults to UTF-8.
*
* @param value String to be encoded
* @param delim Reserved Characters don't want to be encoded
* @param type Encoding type. Default is UTF-8
*/
public static String encode(String value, String delim, String type) {
if (value == null || value.equals("")) {
return value;
}
if (type == null || type.equals("")) {
type = "UTF-8"; //default encoding type.
}
String encdString = "";
if (delim != null && delim.length() > 0) {
StringTokenizer st = new StringTokenizer(value, delim, true);
while (st.hasMoreTokens()) {
String s = st.nextToken();
if (delim.indexOf(s) >= 0) {
encdString = encdString.concat(s);
} else {
try {
encdString += URLEncoder.encode(s, type);
} catch (UnsupportedEncodingException uex) {
try {
encdString += URLEncoder.encode(s, "UTF-8");
} catch (UnsupportedEncodingException ex) {
//we will never get here.
throw new IllegalArgumentException(ex);
}
}
}
}
} // nothing to escape, encode the whole String
else {
try {
encdString = URLEncoder.encode(value, type);
} catch (UnsupportedEncodingException uex) {
try {
encdString += URLEncoder.encode(value, "UTF-8");
} catch (UnsupportedEncodingException ex) {
//we'll never get here.
throw new IllegalArgumentException(ex);
}
}
}
return encdString;
}
/**
*
This method generates an ID that is safe for JSF for the given
* String. It does not guarantee that the id is unique, it is the
* responsibility of the caller to pass in a String that will result
* in a UID. All non-ascii characters will be replaced with an
* '_'. This method will also ensure an alpha character (or '_') is
* the first character in the id.
*
* @param uid A non-null String.
*/
public static String genId(String uid) {
char[] chArr = uid.toCharArray();
int len = chArr.length;
int newIdx = 0;
for (int idx = 0; idx < len; idx++) {
char test = chArr[idx];
if (Character.isLetterOrDigit(test) || test == '_' || test == '-') {
chArr[newIdx++] = test;
} else {
chArr[newIdx++] = '_';
}
}
String result = new String(chArr, 0, newIdx);
if (!Character.isLetter(chArr[0]) && (chArr[0] != '_')) {
// Make it start with a '_'
result = "_" + result;
}
return result;
}
public static ResourceBundle getBundle (String resourceName) {
Locale locale = com.sun.jsftemplating.util.Util.getLocale(FacesContext.getCurrentInstance());
return ResourceBundleManager.getInstance().getBundle(resourceName, locale);
}
/**
* returns the strings from org.glassfish.admingui.core.Strings
* if no such key exists, return the key itself.
*/
public static String getMessage(String key) {
try {
Locale locale = com.sun.jsftemplating.util.Util.getLocale(FacesContext.getCurrentInstance());
ResourceBundle bundle = ResourceBundleManager.getInstance().getBundle(RESOURCE_NAME, locale);
return bundle.getString(key);
} catch (NullPointerException ex) {
return key;
} catch (Exception ex1) {
return key;
}
}
public static String getCommonMessage(String key){
return getMessage(COMMON_RESOURCE_NAME, key);
}
public static String getMessage(String resourceName, String key) {
try{
return getBundle(resourceName).getString(key);
}catch(Exception ex){
return key;
}
}
public static String getMessage(ResourceBundle bundle, String key) {
try{
return bundle.getString(key);
}catch(Exception ex){
return key;
}
}
public static Locale getLocale() {
Locale locale = com.sun.jsftemplating.util.Util.getLocale(FacesContext.getCurrentInstance());
return locale;
}
/**
* This method sets up the attributes of the message box so that a
* saved sucessfully message will be displayed during refresh.
*/
public static void prepareSuccessful(HandlerContext handlerCtx) {
prepareAlert("success", GuiUtil.getMessage("msg.saveSuccessful"), null);
}
/**
* This method sets up the attributes of the message box. It is similar
* to handleException without calling renderResponse()
*/
public static void prepareException(HandlerContext handlerCtx, Throwable ex) {
Throwable rootException = getRootCause(ex);
prepareAlert("error", GuiUtil.getMessage("msg.Error"), rootException.getMessage());
log("LOG_EXCEPTION_OCCURED", ex);
}
/**
* This method sets up the attributes of the message box so that any
* alert message of any type will be displayed during refresh.
* If type is not specified, it will be "information" by default.
*/
public static void prepareAlert(String type, String summary, String detail) {
try {
Map attrMap = FacesContext.getCurrentInstance().getExternalContext().getRequestMap();
if (isEmpty(type)) {
attrMap.put("alertType", "information");
} else if (!(type.equals("information") || type.equals("success") || type.equals("warning")
|| type.equals("error"))) {
throw new RuntimeException("GuiUtil:prepareMessage(): type specified is not a valid type");
} else {
attrMap.put("alertType", type);
}
if (detail != null && detail.length() > 1000) {
detail = detail.substring(0, 1000) + " .... " + GuiUtil.getMessage("msg.seeServerLog");
}
attrMap.put("alertDetail", isEmpty(detail) ? "" : URLEncoder.encode(detail, "UTF-8"));
attrMap.put("alertSummary", isEmpty(summary) ? "" : URLEncoder.encode(summary, "UTF-8"));
} catch (Exception ex) {
log("log.error.prepareAlert", ex);
}
}
public static void handleException(HandlerContext handlerCtx, Throwable ex) {
prepareException(handlerCtx, ex);
handlerCtx.getFacesContext().renderResponse();
}
public static void handleError(HandlerContext handlerCtx, String detail) {
prepareAlert("error", GuiUtil.getMessage("msg.Error"), detail);
handlerCtx.getFacesContext().renderResponse();
}
private static void log(final String messageKey, final Throwable e) {
final Logger logger = GuiUtil.getLogger();
if (logger.isLoggable(Level.CONFIG)) {
GuiUtil.getLogger().log(Level.CONFIG, GuiUtil.getCommonMessage(messageKey), e);
} else if (logger.isLoggable(Level.INFO)) {
logger.info(GuiUtil.getCommonMessage(messageKey) + e.getLocalizedMessage());
}
}
/**
* This method ensure that there will not be a NULL String for the passed in object.
*/
public static String notNull(String test) {
return (test == null) ? "" : test;
}
public static List convertListOfStrings(List l) {
List arrList = new ArrayList<>();
for (Object o : l) {
arrList.add(o.toString());
}
return arrList;
}
/**
* Parses a string containing substrings separated from
* each other by the specified set of separator characters and returns
* a list of strings.
*
* Splits the string line into individual string elements
* separated by the field separators specified in sep,
* and returns these individual strings as a list of strings. The
* individual string elements are trimmed of leading and trailing
* whitespace. Only non-empty strings are returned in the list.
*
* @param line The string to split
* @param sep The list of separators to use for determining where the
* string should be split. If null, then the standard
* separators (see StringTokenizer javadocs) are used.
* @return Returns the list containing the individual strings that
* the input string was split into.
*/
public static List parseStringList(String line, String sep) {
List tokens = new ArrayList<>();
if (line == null) {
return tokens;
}
StringTokenizer st;
if (sep == null) {
st = new StringTokenizer(line);
} else {
st = new StringTokenizer(line, sep);
}
String token;
while (st.hasMoreTokens()) {
token = st.nextToken().trim();
if (token.length() > 0) {
tokens.add(token);
}
}
return tokens;
}
public static String removeToken(String line, String sep, String remove) {
if (line == null) {
return null;
}
StringTokenizer st;
if (sep == null) {
st = new StringTokenizer(line);
} else {
sep = sep.trim();
st = new StringTokenizer(line, sep);
}
String token;
String result = "";
boolean start = true;
while (st.hasMoreTokens()) {
token = st.nextToken().trim();
if (token.length() > 0 && !(token.equals(remove))) {
if (start) {
result = token;
start = false;
} else {
result = result + sep + token;
}
}
}
return result;
}
/**
* This method converts a string into stringarray, uses the delimeter as the
* separator character. If the delimiter is null, uses space as default.
*/
public static String[] stringToArray(String str, String delimiter) {
String[] retString = new String[0];
if (str != null) {
if (delimiter == null) {
delimiter = " ";
}
StringTokenizer tokens = new StringTokenizer(str, delimiter);
retString = new String[tokens.countTokens()];
int i = 0;
while (tokens.hasMoreTokens()) {
String token = tokens.nextToken().trim();
retString[i++] = token;
}
}
return retString;
}
/**
* This method concatenates the delimiter char to the end of each string
* in the array, and returns a single string with the concatenated string.
*/
public static String arrayToString(String[] str, String delimiter) {
StringBuilder retStr = new StringBuilder();
if (str != null) {
for (int i = 0; i < str.length; i++) {
String element = str[i];
// if (element == null || element.length() == 0) {
// throw new IllegalArgumentException();
// }
retStr.append(element);
if (i < str.length - 1) {
retStr.append(delimiter);
}
}
}
return retStr.toString();
}
public static String listToString(List list , String delimiter) {
StringBuilder retStr = new StringBuilder();
if(list == null || list.size() <=0 ) {
return "";
}
for(String oneItem : list){
retStr.append(oneItem);
retStr.append(delimiter);
}
String ret = retStr.toString();
ret = ret.substring(0, ret.length()-1);
return ret;
}
public static T[] asArray(final Object o)
{
return (T[]) Object[].class.cast(o);
}
public static boolean isSelected(String name, List> selectedList) {
if (selectedList == null || name == null) {
return false;
}
for (Map oneRow : selectedList) {
if (name.equals(oneRow.get("name"))) {
return true;
}
}
return false;
}
public static String checkEmpty(String test) {
if (test == null) {
return "";
}
return test;
}
public static Boolean getBooleanValue(Map pMap, String name) {
if (pMap.get(name) == null) {
return Boolean.FALSE;
}
Object val = pMap.get(name);
if (val instanceof Boolean) {
return (Boolean) val;
}
return Boolean.valueOf("" + val);
}
public static ServiceLocator getHabitat() {
ServletContext servletCtx = (ServletContext) FacesContext.getCurrentInstance().getExternalContext().getContext();
// Get the Habitat from the ServletContext
ServiceLocator habitat = (ServiceLocator) servletCtx.getAttribute(
org.glassfish.admingui.common.plugin.ConsoleClassLoader.HABITAT_ATTRIBUTE);
return habitat;
}
public static List> convertArrayToListOfMap(Object[] values, String key) {
List> list = new ArrayList<>();
if (values != null) {
Map map = null;
for (Object val : values) {
map = new HashMap<>();
map.put(key, val);
map.put("selected", false);
list.add(map);
}
}
return list;
}
public static List> convertMapToListOfMap(Map values) {
List> list = new ArrayList<>();
if (values != null) {
for(Map.Entry e : values.entrySet()){
HashMap oneRow = new HashMap<>();
Object value = e.getValue();
String valString = (value == null) ? "" : value.toString();
oneRow.put("name", e.getKey());
oneRow.put("value", valString);
oneRow.put("description", "");
list.add(oneRow);
}
}
return list;
}
/* get the value from a map, traversing a comma separated set of keys
*
* @param map map to travers
* $param mapKeys comma separated set of keys
*
* return value corresponding to the last key in mapKeys
*/
public static Object getMapValue(Map map, String mapKeys) {
String[] keys = mapKeys.split(",");
int i = 0;
for (; i < keys.length - 1; i++) {
map = (Map)map.get(keys[i]);
if (map == null) {
return null;
}
}
return map.get(keys[i]);
}
/**
Get the chain of exceptions via getCause(). The first element is the
Exception passed.
@param start the Exception to traverse
@return a Throwable[] or an Exception[] as appropriate
*/
public static Throwable[] getCauses(final Throwable start)
{
final ArrayList list = new ArrayList<>();
boolean haveNonException = false;
Throwable t = start;
while (t != null)
{
list.add(t);
if (!(t instanceof Exception))
{
haveNonException = true;
}
final Throwable temp = t.getCause();
if (temp == null)
{
break;
}
t = temp;
}
final Throwable[] results = haveNonException ? new Throwable[list.size()] : new Exception[list.size()];
list.toArray(results);
return (results);
}
/**
* Get the original troublemaker.
*
* @param e the Exception to dig into
* @return the original Throwable that started the problem
*/
public static Throwable getRootCause(final Throwable e) {
final Throwable[] causes = getCauses(e);
return (causes[causes.length - 1]);
}
public static String tryToFindOriginalErrorMessage(final Object entity) {
getLogger().finest(() -> String.format("tryToFindOriginalErrorMessage(entity=%s)`; entity.class=%s", entity,
entity == null ? null : entity.getClass().getCanonicalName()));
try {
if (entity instanceof String) {
final JsonStructure parsed = Json.createReader(new StringReader(entity.toString())).read();
if (parsed.getValueType() == ValueType.OBJECT) {
return parsed.asJsonObject().getString("message");
}
getLogger().log(Level.WARNING,
"Unsupported response entity, could not find an error message in the following response entity: {0}",
parsed.getValueType());
}
} catch (Exception e) {
getLogger().log(Level.SEVERE, "Could not parse a response entity, returning empty string as a fallback.", e);
}
return "";
}
}