Class DataUtil
- java.lang.Object
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- org.csstudio.display.builder.runtime.script.DataUtil
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public class DataUtil extends java.lang.Object
Utility class to facilitate Javascript programming for data operation. The basic data type such as int, double, boolean and string are exchangeable between JavaScript and Java, which means these types of JavaScript variables can be directly used as parameters of Java methods, but array is not exchangeable between JavaScript and Java. This utility class provides methods to create Java array or convert JavaScript array to Java array.
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Constructor Summary
Constructors Constructor Description DataUtil()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static double[]
createDoubleArray(int size)
Create a new double array with given size.static int[]
createIntArray(int size)
Create a new int array with given size.static java.util.LinkedHashMap<java.lang.String,java.lang.String>
createMacrosInput(boolean include_parent_macros)
Create a MacrosInput, which can be used as the macros input for a container widget or display.static double[]
toJavaDoubleArray(java.lang.Object array)
Convert JavaScript array to Java double array.static int[]
toJavaIntArray(java.lang.Object array)
Convert JavaScript array to Java int array.
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Method Detail
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createIntArray
public static final int[] createIntArray(int size)
Create a new int array with given size.- Parameters:
size
- the size of the array- Returns:
- an int array with given size.
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createDoubleArray
public static final double[] createDoubleArray(int size)
Create a new double array with given size.- Parameters:
size
- the size of the array- Returns:
- a double array with given size.
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toJavaIntArray
public static final int[] toJavaIntArray(java.lang.Object array)
Convert JavaScript array to Java int array.- Parameters:
jsArray
- JavaScript array- Returns:
- java int array.
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toJavaDoubleArray
public static final double[] toJavaDoubleArray(java.lang.Object array)
Convert JavaScript array to Java double array.- Parameters:
jsArray
- JavaScript array- Returns:
- java array.
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createMacrosInput
public static final java.util.LinkedHashMap<java.lang.String,java.lang.String> createMacrosInput(boolean include_parent_macros)
Create a MacrosInput, which can be used as the macros input for a container widget or display. New macro can be added or replaced byMacrosInput.put(String macroName, String macroValue);
- Parameters:
include_parent_macros
- If parent macros should be included.- Returns:
- a new created LinkedHashMap.
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