github.com/whatap/golib@v0.0.22/util/castutil/CastUtil.go (about)

     1  package castutil
     2  
     3  import (
     4  	"fmt"
     5  	"strconv"
     6  	"strings"
     7  
     8  	"github.com/whatap/golib/lang/value"
     9  )
    10  
    11  func CInt(val interface{}) (rt int32) {
    12  	defer func() {
    13  		if r := recover(); r != nil {
    14  			//logutil.Println("Recover CaseTuil CInt ", r)
    15  			rt = 0
    16  		}
    17  	}()
    18  
    19  	if val == nil {
    20  		return 0
    21  	} else {
    22  		switch val.(type) {
    23  		case string:
    24  			v, err := strconv.Atoi(val.(string))
    25  			if err != nil {
    26  				return 0
    27  			} else {
    28  				return int32(v)
    29  			}
    30  
    31  		default:
    32  			return int32(val.(int64))
    33  		}
    34  	}
    35  }
    36  
    37  func CInteger(val interface{}) int32 {
    38  	return CInt(val)
    39  }
    40  
    41  func CLong(val interface{}) (rt int64) {
    42  	defer func() {
    43  		if r := recover(); r != nil {
    44  			// logutil.Println("Recover CaseTuil CLong ", r)
    45  			rt = 0
    46  		}
    47  	}()
    48  
    49  	if val == nil {
    50  		return 0
    51  	} else {
    52  		switch val.(type) {
    53  		case string:
    54  			v, err := strconv.Atoi(val.(string))
    55  			if err != nil {
    56  				return 0
    57  			} else {
    58  				return int64(v)
    59  			}
    60  
    61  		default:
    62  			return int64(val.(int64))
    63  		}
    64  	}
    65  
    66  }
    67  
    68  func CFloat(val interface{}) (rt float32) {
    69  	defer func() {
    70  		if r := recover(); r != nil {
    71  			// logutil.Println("Recover CaseTuil CFloat ", r)
    72  			rt = 0
    73  		}
    74  	}()
    75  
    76  	if val == nil {
    77  		return 0
    78  	} else {
    79  		switch val.(type) {
    80  		case string:
    81  			v, err := strconv.ParseFloat(val.(string), 32)
    82  
    83  			if err != nil {
    84  				return 0
    85  			} else {
    86  				return float32(v)
    87  			}
    88  
    89  		default:
    90  			return float32(val.(float64))
    91  		}
    92  	}
    93  
    94  }
    95  
    96  func CDouble(val interface{}) (rt float64) {
    97  	defer func() {
    98  		if r := recover(); r != nil {
    99  			// logutil.Println("Recover CaseTuil CDouble ", r)
   100  			rt = 0
   101  		}
   102  	}()
   103  
   104  	if val == nil {
   105  		return 0
   106  	} else {
   107  		switch val.(type) {
   108  		case string:
   109  			v, err := strconv.ParseFloat(val.(string), 64)
   110  			if err != nil {
   111  				return 0
   112  			} else {
   113  				return float64(v)
   114  			}
   115  
   116  		default:
   117  			return float64(val.(float64))
   118  		}
   119  	}
   120  
   121  }
   122  
   123  func ToString(val interface{}) string {
   124  	return fmt.Sprintln(val)
   125  }
   126  
   127  func CString(val interface{}) (rt string) {
   128  	defer func() {
   129  		if r := recover(); r != nil {
   130  			// logutil.Println("CastUtil", "Recover ", r)
   131  			rt = ""
   132  		}
   133  	}()
   134  	if val == nil {
   135  		return ""
   136  	}
   137  	switch val.(type) {
   138  	case string:
   139  		return val.(string)
   140  	case float32, float64:
   141  		return strconv.FormatFloat(val.(float64), 'f', 7, 64)
   142  	default:
   143  		return fmt.Sprintf("%s", val)
   144  	}
   145  }
   146  
   147  func CBool(val interface{}) (rt bool) {
   148  	defer func() {
   149  		if r := recover(); r != nil {
   150  			// logutil.Println("CastUtil", "Recover ", r)
   151  			rt = false
   152  		}
   153  	}()
   154  
   155  	if val == nil {
   156  		return false
   157  	}
   158  	switch val.(type) {
   159  	case bool:
   160  		return val.(bool)
   161  	case *value.BoolValue:
   162  		return val.(*value.BoolValue).Val
   163  	case string:
   164  		return strings.ToLower(val.(string)) == "true"
   165  	default:
   166  		return false
   167  	}
   168  }