Fix warnings from FindBugs

[deliverable/tracecompass.git] / org.eclipse.linuxtools.tmf.core / src / org / eclipse / linuxtools / tmf / core / filter / model / TmfFilterCompareNode.java

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