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/**
*
*/
package org.eclipse.linuxtools.internal.lttng.core.state.evProcessor.state;
import org.eclipse.linuxtools.internal.lttng.core.TraceDebug;
import org.eclipse.linuxtools.internal.lttng.core.event.LttngEvent;
import org.eclipse.linuxtools.internal.lttng.core.event.LttngEventContent;
import org.eclipse.linuxtools.internal.lttng.core.event.LttngEventField;
import org.eclipse.linuxtools.internal.lttng.core.state.StateStrings.Fields;
import org.eclipse.linuxtools.internal.lttng.core.state.model.LttngProcessState;
import org.eclipse.linuxtools.internal.lttng.core.state.model.LttngTraceState;
import org.eclipse.linuxtools.tmf.core.event.TmfEventField;
/**
* Common utility methods for all state processing handlers, not intended to be
* instantiated on its own
*
* @author alvaro
*
*/
public abstract class AbsStateProcessing {
/**
* protected method used when a Field is requested among several available
* fields and the expected type is Long
*
* @param trcEvent
* @param traceSt
* @param expectedNumFields
* @return
*/
protected Long getAFieldLong(LttngEvent trcEvent, LttngTraceState traceSt, Fields expectedField) {
Long fieldVal = 0L;
String fieldname = expectedField.getInName();
LttngEventField field = (LttngEventField) ((LttngEventContent) trcEvent.getContent()).getField(fieldname);
if ( field == null ) {
TraceDebug.debug("***************** CONTENT : " + ((LttngEventContent) trcEvent.getContent()).toString()); //$NON-NLS-1$
}
else {
Object fieldObj = field.getValue();
if ( (fieldObj instanceof Long) || (fieldObj instanceof Integer) ) {
// Expected numeric value found
fieldVal = (Long) field.getValue();
}
else {
if (TraceDebug.isDEBUG()) {
TraceDebug.debug("Unexpected field Type. Expected: Long, Received: "+ fieldObj.getClass().getSimpleName()); //$NON-NLS-1$
}
}
}
/*
// TmfEventField[] fields = trcEvent.getContent().getFields();
TmfEventField[] fields = ((LttngEventContent) trcEvent.getContent())
.getFields(trcEvent);
// At least one field expected
if (fields.length == 0) {
TraceDebug.debug("Unexpected number of fields received: "
+ fields.length);
return null;
}
LttngEventField field;
String fieldname;
String expectedFieldName = expectedField.getInName();
for (int i = 0; i < fields.length; i++) {
field = (LttngEventField) fields[i];
fieldname = field.getName();
if (fieldname.equals(expectedFieldName)) {
Object fieldObj = field.getValue();
if (fieldObj instanceof Long) {
// Expected value found
fieldVal = (Long) field.getValue();
// if (expectedField == Fields.LTT_FIELD_TYPE) {
// TraceDebug.debug("Field Type value is: " + fieldVal);
// }
break;
} else {
if (TraceDebug.isDEBUG()) {
TraceDebug
.debug("Unexpected field Type. Expected: Long, Received: "
+ fieldObj.getClass().getSimpleName());
}
return null;
}
}
}
*/
// if (fieldVal == null) {
// if (TraceDebug.isDEBUG()) {
// sendNoFieldFoundMsg(((LttngEventContent) trcEvent.getContent()).getFields(), fieldname);
// }
// }
return fieldVal;
}
/**
* protected method used when a Field is requested among several available
* fields and the expected type is String
*
* @param trcEvent
* @param traceSt
* @param expectedNumFields
* @return
*/
protected String getAFieldString(LttngEvent trcEvent,
LttngTraceState traceSt, Fields expectedField) {
String fieldVal = ""; //$NON-NLS-1$
String fieldname = expectedField.getInName();
LttngEventField field = (LttngEventField) ((LttngEventContent) trcEvent.getContent()).getField(fieldname);
if ( field == null ) {
TraceDebug.debug("***************** CONTENT : " + ((LttngEventContent) trcEvent.getContent()).toString()); //$NON-NLS-1$
}
else {
Object fieldObj = field.getValue();
if (fieldObj instanceof String) {
// Expected numeric value found
fieldVal = (String) field.getValue();
}
else {
if (TraceDebug.isDEBUG()) {
TraceDebug.debug("Unexpected field Type. Expected: String, Received: "+ fieldObj.getClass().getSimpleName()); //$NON-NLS-1$
}
}
}
/*
// TmfEventField[] fields = trcEvent.getContent().getFields();
TmfEventField[] fields = ((LttngEventContent) trcEvent.getContent())
.getFields(trcEvent);
// Only one field expected
if (fields.length == 0) {
TraceDebug.debug("Unexpected number of fields received: "
+ fields.length);
return null;
}
LttngEventField field;
String fieldname;
String expectedFieldName = expectedField.getInName();
for (int i = 0; i < fields.length; i++) {
field = (LttngEventField) fields[i];
fieldname = field.getName();
if (fieldname.equals(expectedFieldName)) {
Object fieldObj = field.getValue();
if (fieldObj instanceof String) {
// Expected value found
fieldVal = (String) field.getValue();
break;
} else {
if (TraceDebug.isDEBUG()) {
TraceDebug
.debug("Unexpected field Type. Expected: String, Received: "
+ fieldObj.getClass().getSimpleName());
}
return null;
}
}
}
*/
// if (fieldVal == null) {
// if (TraceDebug.isDEBUG()) {
// sendNoFieldFoundMsg(((LttngEventContent) trcEvent.getContent()).getFields(), fieldname);
// }
// }
return fieldVal;
}
/**
* Find the process matching the given pid and cpu
*
* If cpu is 0, the cpu value is not matched and the selection is based on
* pid value only
*
* @param traceState
* @param cpu
* @param pid
* @return
*/
protected LttngProcessState lttv_state_find_process(
LttngTraceState traceState, Long cpu, Long pid) {
return traceState.findProcessState(pid, cpu, traceState.getTraceId());
}
@SuppressWarnings("nls")
protected void sendNoFieldFoundMsg(TmfEventField[] fields,
String expectedFieldName) {
LttngEventField field;
StringBuilder sb = new StringBuilder("Field not found, requested: "
+ expectedFieldName);
sb.append(" number of fields: " + fields.length + "Fields: ");
for (int i = 0; i < fields.length; i++) {
field = (LttngEventField) fields[i];
sb.append(field.getName() + " ");
}
TraceDebug.debug(sb.toString(), 5);
}
}
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