gdt.data.grain.Support Maven / Gradle / Ivy
package gdt.data.grain;
/*
* Copyright 2016 Alexander Imas
* This file is part of JEntigrator.
JEntigrator is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
JEntigrator is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with JEntigrator. If not, see vec) {
if (name == null)
return false;
if (vec == null)
return false;
int cnt = vec.size();
for (int i = 0; i < cnt; i++) {
if (name.compareTo((String) vec.get(i)) == 0)
return true;
}
return false;
}
/**
* Add a string into the vector.
* @param name$ the string
* @param vec vector of strings.
* @return 0 if success,-1 otherwise.
*/
public static int addItem(String name$, Vector vec) {
if (name$ == null)
return -1;
if (vec == null)
return -1;
if (Support.itemExists(name$, vec))
return 0;
vec.addElement(name$);
return 0;
}
/**
* Sort array of strings
* @param sa string array
*/
public static void sortStrings(String[] sa) {
String s;
boolean greater = false;
for (int i = sa.length; --i >= 0; ) {
boolean flipped = false;
for (int j = 0; j < i; j++) {
greater = false;
if (sa[j] == null)
sa[j] = "null";
if (sa[j + 1] == null)
sa[j + 1] = "null";
if (sa[j].equals("null")) {
greater = false;
continue;
}
if (sa[j + 1].equals("null")) {
greater = true;
continue;
}
if (sa[j].compareToIgnoreCase(sa[j + 1]) > 0)
greater = true;
if (greater) {
s = sa[j];
sa[j] = sa[j + 1];
sa[j + 1] = s;
flipped = true;
}
}
if (!flipped)
return;
}
}
private static String transamp(String string$) {
if (string$ == null)
return null;
return string$.replaceAll("&", "&");
}
/**
* Replace special characters in XML string.
* @param string$ original string
* @return converted string.
*/
public static String translate(String string$) {
if (string$ == null)
return null;
String ret$ = transamp(string$);
ret$ = ret$.replaceAll(">", ">");
ret$ = ret$.replaceAll("<", "<");
ret$ = ret$.replaceAll("\"", """);
ret$ = ret$.replaceAll("\n", "
");
ret$ = ret$.replaceAll("'", "'");
return ret$;
}
/**
* Get value from the hash table by key string
* @param keyName key string
* @param tab hash table.
* @return found value or null.
*/
public static Object getValue(String keyName, Hashtable tab) {
if (keyName == null)
return null;
if (tab == null)
return null;
Enumeration en = tab.keys();
String curKey = null;
while (en.hasMoreElements()) {
curKey = (String) en.nextElement();
if (keyName.compareTo(curKey) == 0)
return tab.get(curKey);
}
return null;
}
/**
* Remove the key and the associated value from the
* hash table.
* @param keyName key string
* @param tab hash table.
*/
public static void removeKey(String keyName, Hashtable tab) {
if (keyName == null)
return;
if (tab == null)
return;
Enumeration en = tab.keys();
String curKey = null;
while (en.hasMoreElements()) {
curKey = (String) en.nextElement();
if (keyName.compareTo(curKey) == 0) {
tab.remove(curKey);
break;
}
}
}
/**
* Get class resource as input stream.
* @param handler the class
* @param resource$ the resource name.
* @return input stream.
*/
public static InputStream getClassResource(Class handler,String resource$){
try {
InputStream is=handler.getResourceAsStream(resource$);
if(is!=null){
if(debug)
System.out.println("Support:getClassResource:resource stream="+is.toString());
return is;
}
else{
if(debug)
System.out.println("Support:getClassResource:cannot get embedded resource stream for handler="+handler.getName());
ClassLoader classLoader=handler.getClassLoader();
is=classLoader.getResourceAsStream(resource$);
if(is!=null)
if(debug)
System.out.println("Support:getClassResource:resourse stream="+is.toString());
else
if(debug)
System.out.println("Support:getClassResource:cannot get resource stream");
String handler$=handler.getName();
if(debug)
System.out.println("Support:getClassResource:class="+handler$);
String handlerName$=handler.getSimpleName();
if(debug)
System.out.println("Support:getClassResource:class name="+handlerName$);
String handlerPath$=handler$.replace(".", "/");
if(debug)
System.out.println("Support:getClassResource:class path="+handlerPath$);
String resourcePath$="src/"+handlerPath$.replace(handlerName$, resource$);
if(debug)
System.out.println("Support:getClassResource:resource path="+resourcePath$);
ClassLoader classloader = Thread.currentThread().getContextClassLoader();
URL resourceUrl= classloader.getResource(resourcePath$);
if(resourceUrl!=null){
if(debug)
System.out.println("Support:getClassResource:resource URL="+resourceUrl.toString());
return resourceUrl.openStream();
}
else{
if(debug)
System.out.println("Support:getClassResource:cannot get resource URL");
}
}
} catch (Exception e) {
Logger.getLogger(gdt.data.grain.Support.class.getName()).severe(e.toString());
}
return null;
}
/**
* Get an icon encoded as Base64 string located as file in the class path.
* @param entigrator the entigrator.
* @param handler the class
* @param iconResource$ the name of the icon file.
* @return input stream.
*/
public static String readHandlerIcon(Entigrator entigrator,Class handler,String iconResource$) {
try {
if(debug)
System.out.println("Support:readHandlerIcon:handler="+handler.getName()+" icon="+iconResource$);
//InputStream is=handler.getResourceAsStream(icon$);
InputStream is= getClassResource(handler,iconResource$);
if(is!=null){
ByteArrayOutputStream bos = new ByteArrayOutputStream();
byte[] b = new byte[1024];
int bytesRead = 0;
while ((bytesRead = is.read(b)) != -1) {
bos.write(b, 0, bytesRead);
}
byte[] ba = bos.toByteArray();
is.close();
return Base64.encodeBase64String(ba);
}else
{
if(entigrator==null){
if(debug)
System.out.println("Support:readHandlerIcon:entigrator is null");
return null;
}
String [] sa=entigrator.indx_listEntities("entity", "extension");
if(sa!=null){
String icon$=null;
for(String s:sa){
icon$=ExtensionHandler.loadIcon(entigrator, s, iconResource$);
if(icon$!=null)
return icon$;
}
}
}
} catch (Exception e) {
Logger.getLogger(gdt.data.grain.Support.class.getName()).severe(e.toString());
}
return null;
}
/**
* Copy the icon file from the class path into the target directory.
* @param handler the class
* @param icon$ the name of the icon file.
* @param directory$ the icons directory path .
*/
public static void addHandlerIcon(Class handler,String icon$,String directory$) {
try {
File iconFile=new File(directory$+"/"+icon$);
if(iconFile.exists())
return;
iconFile.createNewFile();
InputStream is=handler.getResourceAsStream(icon$);
FileOutputStream fos=new FileOutputStream(iconFile);
byte[] b = new byte[1024];
int bytesRead = 0;
while ((bytesRead = is.read(b)) != -1) {
fos.write(b, 0, bytesRead);
}
is.close();
fos.close();
} catch (Exception e) {
Logger.getLogger(gdt.data.grain.Support.class.getName()).severe(e.toString());
}
}
/**
* Intersect two string arrays
* @param list1 first array
* @param list2 second array
* @return the result string array.
*/
public static String[] intersect(String[] list1, String[] list2) {
if (list2 == null || list1 == null) {
return null;
}
Stack s1 = new Stack();
Stack s2 = new Stack();
for (String aList2 : list2) s2.push(aList2);
String line$ ;
boolean found ;
String member$ = null;
while (!s2.isEmpty()) {
try {
found = false;
line$ = s2.pop().toString();
if (line$ == null)
continue;
for (String aList1 : list1) {
member$ = aList1;
if (line$.equals(member$)) {
found = true;
break;
}
}
if (found)
Support.addItem(member$, s1);
} catch (Exception e) {
Logger.getLogger(Support.class.getName()).info("intersect:"+e.toString());
}
}
return s1.toArray(new String[0]);
}
}
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