diff options
author | Marcus G K Williams <marcus.williams@intel.com> | 2017-08-02 15:09:24 -0700 |
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committer | Marcus G K Williams <marcus.williams@intel.com> | 2017-08-02 16:08:09 -0700 |
commit | 806052bf4df8bd023cfb391794bc5937f2624716 (patch) | |
tree | 166e4a28582d96eaf3a8dd69b484cf02076d634c /resource-assignment/provider/src/main/java/org/openecomp/sdnc/util/expr | |
parent | 16508ffde287f481791ae0b9c071f60a331c680d (diff) |
Convert tabs to spaces
Per Java Code Style Guide: https://wiki.onap.org/display/DW/Java+code+style
Converting tabs to 4 spaces.
Issue-Id: SDNC-25
Change-Id: I99ce6c244df72f805b52d0d66403d8b76d9929ae
Signed-off-by: Marcus G K Williams <marcus.williams@intel.com>
Diffstat (limited to 'resource-assignment/provider/src/main/java/org/openecomp/sdnc/util/expr')
-rw-r--r-- | resource-assignment/provider/src/main/java/org/openecomp/sdnc/util/expr/ExpressionEvaluator.java | 360 |
1 files changed, 180 insertions, 180 deletions
diff --git a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/util/expr/ExpressionEvaluator.java b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/util/expr/ExpressionEvaluator.java index ff15d770..345a6263 100644 --- a/resource-assignment/provider/src/main/java/org/openecomp/sdnc/util/expr/ExpressionEvaluator.java +++ b/resource-assignment/provider/src/main/java/org/openecomp/sdnc/util/expr/ExpressionEvaluator.java @@ -3,7 +3,7 @@ * openECOMP : SDN-C * ================================================================================ * Copyright (C) 2017 ONAP Intellectual Property. All rights - * reserved. + * reserved. * ================================================================================ * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -25,183 +25,183 @@ import java.util.Map; public class ExpressionEvaluator { - public static long evalLong(String expr, Map<String, Object> vars) { - return (long) evalFloat(expr, vars); - } - - public static float evalFloat(String expr, Map<String, Object> vars) { - expr = expr.trim(); - int sl = expr.length(); - if (sl == 0) - throw new IllegalArgumentException("Cannot interpret empty string."); - - // Remove parentheses if any - if (expr.charAt(0) == '(' && expr.charAt(sl - 1) == ')') - return evalFloat(expr.substring(1, sl - 1), vars); - - // Look for operators in the order of least priority - String[] sss = findOperator(expr, "-", true); - if (sss != null) - return evalFloat(sss[0], vars) - evalFloat(sss[1], vars); - - sss = findOperator(expr, "+", true); - if (sss != null) - return evalFloat(sss[0], vars) + evalFloat(sss[1], vars); - - sss = findOperator(expr, "/", true); - if (sss != null) - return evalFloat(sss[0], vars) / evalFloat(sss[1], vars); - - sss = findOperator(expr, "*", true); - if (sss != null) - return evalFloat(sss[0], vars) * evalFloat(sss[1], vars); - - // Check if expr is a number - try { - return Float.valueOf(expr); - } catch (Exception e) { - } - - // Must be a variable - Object v = vars.get(expr); - if (v != null) { - if (v instanceof Float) - return (Float) v; - if (v instanceof Long) - return (Long) v; - if (v instanceof Integer) - return (Integer) v; - } - return 0; - } - - public static boolean evalBoolean(String expr, Map<String, Object> vars) { - expr = expr.trim(); - int sl = expr.length(); - if (sl == 0) - throw new IllegalArgumentException("Cannot interpret empty string."); - - if (expr.equalsIgnoreCase("true")) - return true; - - if (expr.equalsIgnoreCase("false")) - return false; - - // Remove parentheses if any - if (expr.charAt(0) == '(' && expr.charAt(sl - 1) == ')') - return evalBoolean(expr.substring(1, sl - 1), vars); - - // Look for operators in the order of least priority - String[] sss = findOperator(expr, "or", true); - if (sss != null) - return evalBoolean(sss[0], vars) || evalBoolean(sss[1], vars); - - sss = findOperator(expr, "and", true); - if (sss != null) - return evalBoolean(sss[0], vars) && evalBoolean(sss[1], vars); - - sss = findOperator(expr, "not", true); - if (sss != null) - return !evalBoolean(sss[1], vars); - - sss = findOperator(expr, "!=", false); - if (sss == null) - sss = findOperator(expr, "<>", false); - if (sss != null) - return evalLong(sss[0], vars) != evalLong(sss[1], vars); - - sss = findOperator(expr, "==", false); - if (sss == null) - sss = findOperator(expr, "=", false); - if (sss != null) - return evalLong(sss[0], vars) == evalLong(sss[1], vars); - - sss = findOperator(expr, ">=", false); - if (sss != null) - return evalLong(sss[0], vars) >= evalLong(sss[1], vars); - - sss = findOperator(expr, ">", false); - if (sss != null) - return evalLong(sss[0], vars) > evalLong(sss[1], vars); - - sss = findOperator(expr, "<=", false); - if (sss != null) - return evalLong(sss[0], vars) <= evalLong(sss[1], vars); - - sss = findOperator(expr, "<", false); - if (sss != null) - return evalLong(sss[0], vars) < evalLong(sss[1], vars); - - throw new IllegalArgumentException("Cannot interpret '" + expr + "': Invalid expression."); - } - - private static String[] findOperator(String s, String op, boolean delimiterRequired) { - int opl = op.length(); - int sl = s.length(); - String delimiters = " \0\t\r\n()"; - int pcount = 0, qcount = 0; - for (int i = 0; i < sl; i++) { - char c = s.charAt(i); - if (c == '(' && qcount == 0) - pcount++; - else if (c == ')' && qcount == 0) { - pcount--; - if (pcount < 0) - throw new IllegalArgumentException("Cannot interpret '" + s + "': Parentheses do not match."); - } else if (c == '\'') - qcount = (qcount + 1) % 2; - else if (i <= sl - opl && pcount == 0 && qcount == 0) { - String ss = s.substring(i, i + opl); - if (ss.equalsIgnoreCase(op)) { - boolean found = true; - if (delimiterRequired) { - // Check for delimiter before and after to make sure it is not part of another word - char chbefore = '\0'; - if (i > 0) - chbefore = s.charAt(i - 1); - char chafter = '\0'; - if (i < sl - opl) - chafter = s.charAt(i + opl); - found = delimiters.indexOf(chbefore) >= 0 && delimiters.indexOf(chafter) >= 0; - } - if (found) { - // We've found the operator, split the string - String[] sss = new String[2]; - sss[0] = s.substring(0, i); - sss[1] = s.substring(i + opl); - return sss; - } - } - } - } - if (pcount > 0) - throw new IllegalArgumentException("Cannot interpret '" + s + "': Parentheses do not match."); - if (qcount > 0) - throw new IllegalArgumentException("Cannot interpret '" + s + "': No closing '."); - return null; - } - - private static Object parseObject(String s) { - s = s.trim(); - int sl = s.length(); - if (sl == 0) - throw new IllegalArgumentException("Cannot interpret empty string."); - if (s.equalsIgnoreCase("null")) - return null; - if (s.charAt(0) == '\'') { - if (sl < 2 || s.charAt(sl - 1) != '\'') - throw new IllegalArgumentException("Cannot interpret '" + s + "': No closing '."); - return s.substring(1, sl - 1); - } - // Not in quotes - must be a number - try { - return Long.valueOf(s); - } catch (Exception e) { - } - try { - return Double.valueOf(s); - } catch (Exception e) { - throw new IllegalArgumentException("Cannot interpret '" + s + "': Invalid number."); - } - } + public static long evalLong(String expr, Map<String, Object> vars) { + return (long) evalFloat(expr, vars); + } + + public static float evalFloat(String expr, Map<String, Object> vars) { + expr = expr.trim(); + int sl = expr.length(); + if (sl == 0) + throw new IllegalArgumentException("Cannot interpret empty string."); + + // Remove parentheses if any + if (expr.charAt(0) == '(' && expr.charAt(sl - 1) == ')') + return evalFloat(expr.substring(1, sl - 1), vars); + + // Look for operators in the order of least priority + String[] sss = findOperator(expr, "-", true); + if (sss != null) + return evalFloat(sss[0], vars) - evalFloat(sss[1], vars); + + sss = findOperator(expr, "+", true); + if (sss != null) + return evalFloat(sss[0], vars) + evalFloat(sss[1], vars); + + sss = findOperator(expr, "/", true); + if (sss != null) + return evalFloat(sss[0], vars) / evalFloat(sss[1], vars); + + sss = findOperator(expr, "*", true); + if (sss != null) + return evalFloat(sss[0], vars) * evalFloat(sss[1], vars); + + // Check if expr is a number + try { + return Float.valueOf(expr); + } catch (Exception e) { + } + + // Must be a variable + Object v = vars.get(expr); + if (v != null) { + if (v instanceof Float) + return (Float) v; + if (v instanceof Long) + return (Long) v; + if (v instanceof Integer) + return (Integer) v; + } + return 0; + } + + public static boolean evalBoolean(String expr, Map<String, Object> vars) { + expr = expr.trim(); + int sl = expr.length(); + if (sl == 0) + throw new IllegalArgumentException("Cannot interpret empty string."); + + if (expr.equalsIgnoreCase("true")) + return true; + + if (expr.equalsIgnoreCase("false")) + return false; + + // Remove parentheses if any + if (expr.charAt(0) == '(' && expr.charAt(sl - 1) == ')') + return evalBoolean(expr.substring(1, sl - 1), vars); + + // Look for operators in the order of least priority + String[] sss = findOperator(expr, "or", true); + if (sss != null) + return evalBoolean(sss[0], vars) || evalBoolean(sss[1], vars); + + sss = findOperator(expr, "and", true); + if (sss != null) + return evalBoolean(sss[0], vars) && evalBoolean(sss[1], vars); + + sss = findOperator(expr, "not", true); + if (sss != null) + return !evalBoolean(sss[1], vars); + + sss = findOperator(expr, "!=", false); + if (sss == null) + sss = findOperator(expr, "<>", false); + if (sss != null) + return evalLong(sss[0], vars) != evalLong(sss[1], vars); + + sss = findOperator(expr, "==", false); + if (sss == null) + sss = findOperator(expr, "=", false); + if (sss != null) + return evalLong(sss[0], vars) == evalLong(sss[1], vars); + + sss = findOperator(expr, ">=", false); + if (sss != null) + return evalLong(sss[0], vars) >= evalLong(sss[1], vars); + + sss = findOperator(expr, ">", false); + if (sss != null) + return evalLong(sss[0], vars) > evalLong(sss[1], vars); + + sss = findOperator(expr, "<=", false); + if (sss != null) + return evalLong(sss[0], vars) <= evalLong(sss[1], vars); + + sss = findOperator(expr, "<", false); + if (sss != null) + return evalLong(sss[0], vars) < evalLong(sss[1], vars); + + throw new IllegalArgumentException("Cannot interpret '" + expr + "': Invalid expression."); + } + + private static String[] findOperator(String s, String op, boolean delimiterRequired) { + int opl = op.length(); + int sl = s.length(); + String delimiters = " \0\t\r\n()"; + int pcount = 0, qcount = 0; + for (int i = 0; i < sl; i++) { + char c = s.charAt(i); + if (c == '(' && qcount == 0) + pcount++; + else if (c == ')' && qcount == 0) { + pcount--; + if (pcount < 0) + throw new IllegalArgumentException("Cannot interpret '" + s + "': Parentheses do not match."); + } else if (c == '\'') + qcount = (qcount + 1) % 2; + else if (i <= sl - opl && pcount == 0 && qcount == 0) { + String ss = s.substring(i, i + opl); + if (ss.equalsIgnoreCase(op)) { + boolean found = true; + if (delimiterRequired) { + // Check for delimiter before and after to make sure it is not part of another word + char chbefore = '\0'; + if (i > 0) + chbefore = s.charAt(i - 1); + char chafter = '\0'; + if (i < sl - opl) + chafter = s.charAt(i + opl); + found = delimiters.indexOf(chbefore) >= 0 && delimiters.indexOf(chafter) >= 0; + } + if (found) { + // We've found the operator, split the string + String[] sss = new String[2]; + sss[0] = s.substring(0, i); + sss[1] = s.substring(i + opl); + return sss; + } + } + } + } + if (pcount > 0) + throw new IllegalArgumentException("Cannot interpret '" + s + "': Parentheses do not match."); + if (qcount > 0) + throw new IllegalArgumentException("Cannot interpret '" + s + "': No closing '."); + return null; + } + + private static Object parseObject(String s) { + s = s.trim(); + int sl = s.length(); + if (sl == 0) + throw new IllegalArgumentException("Cannot interpret empty string."); + if (s.equalsIgnoreCase("null")) + return null; + if (s.charAt(0) == '\'') { + if (sl < 2 || s.charAt(sl - 1) != '\'') + throw new IllegalArgumentException("Cannot interpret '" + s + "': No closing '."); + return s.substring(1, sl - 1); + } + // Not in quotes - must be a number + try { + return Long.valueOf(s); + } catch (Exception e) { + } + try { + return Double.valueOf(s); + } catch (Exception e) { + throw new IllegalArgumentException("Cannot interpret '" + s + "': Invalid number."); + } + } } |