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/*******************************************************************************
* Copyright (c) 2010, 2015 Ericsson
*
* All rights reserved. This program and the accompanying materials are
* made available under the terms of the Eclipse Public License v1.0 which
* accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Patrick Tasse - Initial API and implementation
*******************************************************************************/
package org.eclipse.linuxtools.tmf.core.filter.model;
import java.text.NumberFormat;
import java.text.ParseException;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.linuxtools.tmf.core.event.ITmfEvent;
import org.eclipse.linuxtools.tmf.core.timestamp.TmfTimestamp;
/**
* Filter node for the comparison operation
*
* @version 1.0
* @author Patrick Tasse
*/
@SuppressWarnings("javadoc")
public class TmfFilterCompareNode extends TmfFilterTreeNode {
public static final String NODE_NAME = "COMPARE"; //$NON-NLS-1$
public static final String NOT_ATTR = "not"; //$NON-NLS-1$
public static final String FIELD_ATTR = "field"; //$NON-NLS-1$
public static final String RESULT_ATTR = "result"; //$NON-NLS-1$
public static final String TYPE_ATTR = "type"; //$NON-NLS-1$
public static final String VALUE_ATTR = "value"; //$NON-NLS-1$
/**
* Supported comparison types
*/
public static enum Type {
NUM,
ALPHA,
TIMESTAMP
}
private boolean fNot = false;
private String fField;
private int fResult;
private Type fType = Type.NUM;
private String fValue;
private transient Number fValueNumber;
private transient TmfTimestamp fValueTimestamp;
/**
* @param parent the parent node
*/
public TmfFilterCompareNode(ITmfFilterTreeNode parent) {
super(parent);
}
/**
* @return the NOT state
*/
public boolean isNot() {
return fNot;
}
/**
* @param not the NOT state
*/
public void setNot(boolean not) {
this.fNot = not;
}
/**
* @return the field name
*/
public String getField() {
return fField;
}
/**
* @param field the field name
*/
public void setField(String field) {
this.fField = field;
}
/**
* @return the compare result
*/
public int getResult() {
return fResult;
}
/**
* @param result the compare result
*/
public void setResult(int result) {
this.fResult = result;
}
/**
* @return the comparison type
*/
public Type getType() {
return fType;
}
/**
* @param type the comparison type
*/
public void setType(Type type) {
this.fType = type;
setValue(fValue);
}
/**
* @return the comparison value
*/
public String getValue() {
return fValue;
}
/**
* @param value the comparison value
*/
public void setValue(String value) {
this.fValue = value;
fValueNumber = null;
fValueTimestamp = null;
if (value == null) {
return;
}
if (fType == Type.NUM) {
try {
fValueNumber = NumberFormat.getInstance().parse(value).doubleValue();
} catch (ParseException e) {
}
} else if (fType == Type.TIMESTAMP) {
try {
fValueTimestamp = new TmfTimestamp((long) (1E9 * NumberFormat.getInstance().parse(value.toString()).doubleValue()));
} catch (ParseException e) {
}
}
}
@Override
public String getNodeName() {
return NODE_NAME;
}
@Override
public boolean matches(ITmfEvent event) {
Object value = getFieldValue(event, fField);
if (value == null) {
return false ^ fNot;
}
if (fType == Type.NUM) {
if (fValueNumber != null) {
if (value instanceof Number) {
double valueDouble = ((Number) value).doubleValue();
return (Double.compare(valueDouble, fValueNumber.doubleValue()) == fResult) ^ fNot;
}
try {
double valueDouble = NumberFormat.getInstance().parse(value.toString()).doubleValue();
return (Double.compare(valueDouble, fValueNumber.doubleValue()) == fResult) ^ fNot;
} catch (ParseException e) {
}
}
} else if (fType == Type.ALPHA) {
String valueString = value.toString();
int comp = valueString.compareTo(fValue.toString());
if (comp < -1) {
comp = -1;
} else if (comp > 1) {
comp = 1;
}
return (comp == fResult) ^ fNot;
} else if (fType == Type.TIMESTAMP) {
if (fValueTimestamp != null) {
if (value instanceof TmfTimestamp) {
TmfTimestamp valueTimestamp = (TmfTimestamp) value;
return (valueTimestamp.compareTo(fValueTimestamp, false) == fResult) ^ fNot;
}
try {
TmfTimestamp valueTimestamp = new TmfTimestamp((long) (1E9 * NumberFormat
.getInstance().parse(value.toString()).doubleValue()));
return (valueTimestamp.compareTo(fValueTimestamp, false) == fResult) ^ fNot;
} catch (ParseException e) {
}
}
}
return false ^ fNot;
}
@Override
public List<String> getValidChildren() {
return new ArrayList<>(0);
}
@Override
public String toString() {
String result = (fResult == 0 ? "= " : fResult < 0 ? "< " : "> "); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
String open = (fType == Type.NUM ? "" : fType == Type.ALPHA ? "\"" : "["); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
String close = (fType == Type.NUM ? "" : fType == Type.ALPHA ? "\"" : "]"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
return fField + (fNot ? " not " : " ") + result + open + fValue + close; //$NON-NLS-1$ //$NON-NLS-2$
}
@Override
public ITmfFilterTreeNode clone() {
TmfFilterCompareNode clone = (TmfFilterCompareNode) super.clone();
clone.fField = fField;
clone.setValue(fValue);
return clone;
}
}
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