diff --git a/common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbUtils.java b/common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbUtils.java index 6c50561363..10d48d582a 100644 --- a/common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbUtils.java +++ b/common/script/script-api/src/main/java/org/thingsboard/script/api/tbel/TbUtils.java @@ -15,6 +15,7 @@ */ package org.thingsboard.script.api.tbel; +import com.google.common.primitives.Bytes; import org.mvel2.ExecutionContext; import org.mvel2.ParserConfiguration; import org.mvel2.execution.ExecutionArrayList; @@ -81,6 +82,14 @@ public class TbUtils { byte[].class, int.class, int.class))); parserConfig.addImport("parseBytesToInt", new MethodStub(TbUtils.class.getMethod("parseBytesToInt", byte[].class, int.class, int.class, boolean.class))); + parserConfig.addImport("parseBytesToFloat", new MethodStub(TbUtils.class.getMethod("parseBytesToFloat", + byte[].class, int.class, boolean.class))); + parserConfig.addImport("parseBytesToFloat", new MethodStub(TbUtils.class.getMethod("parseBytesToFloat", + byte[].class, int.class))); + parserConfig.addImport("parseBytesToFloat", new MethodStub(TbUtils.class.getMethod("parseBytesToFloat", + List.class, int.class, boolean.class))); + parserConfig.addImport("parseBytesToFloat", new MethodStub(TbUtils.class.getMethod("parseBytesToFloat", + List.class, int.class))); parserConfig.addImport("toFixed", new MethodStub(TbUtils.class.getMethod("toFixed", double.class, int.class))); parserConfig.addImport("hexToBytes", new MethodStub(TbUtils.class.getMethod("hexToBytes", @@ -293,6 +302,33 @@ public class TbUtils { return bb.getInt(); } + public static float parseBytesToFloat(byte[] data, int offset) { + return parseBytesToFloat(data, offset, true); + } + + public static float parseBytesToFloat(byte[] data, int offset, boolean bigEndian) { + if (data != null && data.length > 0) { + int length = 4; + if (offset > data.length) { + throw new IllegalArgumentException("Offset: " + offset + " is out of bounds for array with length: " + data.length + "!"); + } + if ((offset + length) > data.length) { + throw new IllegalArgumentException("Default length is always 4 bytes. Offset: " + offset + " and Length: " + length + " is out of bounds for array with length: " + data.length + "!"); + } + int i = parseBytesToInt(data, offset, length, bigEndian); + return Float.intBitsToFloat(i); + } else { + throw new IllegalArgumentException("Array is null or array length is 0!"); + } + } + public static float parseBytesToFloat(List data, int offset) { + return parseBytesToFloat(data, offset, true); + } + + public static float parseBytesToFloat(List data, int offset, boolean bigEndian) { + return parseBytesToFloat(Bytes.toArray(data), offset, bigEndian); + } + public static String bytesToHex(ExecutionArrayList bytesList) { byte[] bytes = new byte[bytesList.size()]; for (int i = 0; i < bytesList.size(); i++) {