org.netbeans.lib.profiler.heap.HprofProxy Maven / Gradle / Ivy
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package org.netbeans.lib.profiler.heap;
import java.util.Iterator;
import java.util.Properties;
/**
*
* @author Tomas Hurka
*/
class HprofProxy {
//~ Constructors -------------------------------------------------------------------------------------------------------------
HprofProxy() {
}
//~ Methods ------------------------------------------------------------------------------------------------------------------
static Properties getProperties(Instance propertiesInstance) {
ObjectArrayDump entriesObj = (ObjectArrayDump) propertiesInstance.getValueOfField("table"); // NOI18N
if (entriesObj != null) {
Instance defaultsObj = (Instance) propertiesInstance.getValueOfField("defaults"); // NOI18N
Iterator enIt = entriesObj.getValues().iterator();
Properties props;
if (defaultsObj != null) {
props = new Properties(getProperties(defaultsObj));
} else {
props = new Properties();
}
while (enIt.hasNext()) {
Instance entry = (Instance) enIt.next();
for (; entry != null; entry = (Instance) entry.getValueOfField("next")) { // NOI18N
Instance key = (Instance) entry.getValueOfField("key"); // NOI18N
Instance val = (Instance) entry.getValueOfField("value"); // NOI18N
if (key != null) {
props.setProperty(getString(key), getString(val));
}
}
}
return props;
}
return null;
}
static String getString(Instance stringInstance) {
if (stringInstance == null) {
return "*null*"; // NOI18N
}
String className = stringInstance.getJavaClass().getName();
if (String.class.getName().equals(className)) {
PrimitiveArrayDump chars = (PrimitiveArrayDump) stringInstance.getValueOfField("value"); // NOI18N
if (chars != null) {
Integer offset = (Integer) stringInstance.getValueOfField("offset"); // NOI18N
Integer len = (Integer) stringInstance.getValueOfField("count"); // NOI18N
if (offset == null) {
offset = Integer.valueOf(0);
}
if (len == null) {
len = new Integer(chars.getLength());
}
char[] charArr = chars.getChars(offset.intValue(), len.intValue());
return new String(charArr).intern();
}
return "*null*"; // NOI18N
}
// what? Non-string in system properties?
return "*"+className+"#"+stringInstance.getInstanceNumber()+"*"; // NOI18N
}
}